This is an automated email from the ASF dual-hosted git repository.
andor pushed a commit to branch branch-3.9.0
in repository https://gitbox.apache.org/repos/asf/zookeeper.git
The following commit(s) were added to refs/heads/branch-3.9.0 by this push:
new 796b2fb93 Updated release notes
796b2fb93 is described below
commit 796b2fb932737943c6cb9eabb91e77ed20131e6b
Author: Andor Molnar <[email protected]>
AuthorDate: Mon Jul 17 13:56:44 2023 +0200
Updated release notes
---
NOTICE.txt | 2 +-
.../src/main/resources/markdown/releasenotes.md | 813 +++++++++++++++------
2 files changed, 585 insertions(+), 230 deletions(-)
diff --git a/NOTICE.txt b/NOTICE.txt
index 8fb1daca8..d18b8a5c7 100644
--- a/NOTICE.txt
+++ b/NOTICE.txt
@@ -1,5 +1,5 @@
Apache ZooKeeper
-Copyright 2009-2022 The Apache Software Foundation
+Copyright 2009-2023 The Apache Software Foundation
This product includes software developed at
The Apache Software Foundation (http://www.apache.org/).
diff --git a/zookeeper-docs/src/main/resources/markdown/releasenotes.md
b/zookeeper-docs/src/main/resources/markdown/releasenotes.md
index e32614df0..b83041291 100644
--- a/zookeeper-docs/src/main/resources/markdown/releasenotes.md
+++ b/zookeeper-docs/src/main/resources/markdown/releasenotes.md
@@ -1,5 +1,5 @@
<!--
-Copyright 2002-2004 The Apache Software Foundation
+Copyright 2002-2023 The Apache Software Foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -14,254 +14,609 @@ See the License for the specific language governing
permissions and
limitations under the License.
//-->
-# ZooKeeper 3.0.0 Release Notes
-* [Migration Instructions when Upgrading to 3.0.0](#migration)
- * [Migrating Client Code](#migration_code)
- * [Watch Management](#Watch+Management)
- * [Java API](#Java+API)
- * [C API](#C+API)
- * [Migrating Server Data](#migration_data)
- * [Migrating Server Configuration](#migration_config)
-* [Changes Since ZooKeeper 2.2.1](#changes)
+# Release Notes - ZooKeeper - Version 3.9.0
+
+## Sub-task
+
+* [ZOOKEEPER-4327](https://issues.apache.org/jira/browse/ZOOKEEPER-4327) -
Flaky test: RequestThrottlerTest
+
+## Bug
+
+* [ZOOKEEPER-2108](https://issues.apache.org/jira/browse/ZOOKEEPER-2108) -
Compilation error in ZkAdaptor.cc with GCC 4.7 or later
+* [ZOOKEEPER-3652](https://issues.apache.org/jira/browse/ZOOKEEPER-3652) -
Improper synchronization in ClientCnxn
+* [ZOOKEEPER-3908](https://issues.apache.org/jira/browse/ZOOKEEPER-3908) -
zktreeutil multiple issues
+* [ZOOKEEPER-3996](https://issues.apache.org/jira/browse/ZOOKEEPER-3996) -
Flaky test: ReadOnlyModeTest.testConnectionEvents
+* [ZOOKEEPER-4026](https://issues.apache.org/jira/browse/ZOOKEEPER-4026) -
CREATE2 requests embeded in a MULTI request only get a regular CREATE response
+* [ZOOKEEPER-4296](https://issues.apache.org/jira/browse/ZOOKEEPER-4296) -
NullPointerException when ClientCnxnSocketNetty is closed without being opened
+* [ZOOKEEPER-4308](https://issues.apache.org/jira/browse/ZOOKEEPER-4308) -
Flaky test: EagerACLFilterTest.testSetDataFail
+* [ZOOKEEPER-4393](https://issues.apache.org/jira/browse/ZOOKEEPER-4393) -
Problem to connect to zookeeper in FIPS mode
+* [ZOOKEEPER-4466](https://issues.apache.org/jira/browse/ZOOKEEPER-4466) -
Support different watch modes on same path
+* [ZOOKEEPER-4471](https://issues.apache.org/jira/browse/ZOOKEEPER-4471) -
Remove WatcherType.Children break persistent watcher's child events
+* [ZOOKEEPER-4473](https://issues.apache.org/jira/browse/ZOOKEEPER-4473) -
zooInspector create root node fail with path validate
+* [ZOOKEEPER-4475](https://issues.apache.org/jira/browse/ZOOKEEPER-4475) -
Persistent recursive watcher got NodeChildrenChanged event
+* [ZOOKEEPER-4477](https://issues.apache.org/jira/browse/ZOOKEEPER-4477) -
Single Kerberos ticket renewal failure can prevent all future renewals since
Java 9
+* [ZOOKEEPER-4504](https://issues.apache.org/jira/browse/ZOOKEEPER-4504) -
ZKUtil#deleteRecursive causing deadlock in HDFS HA functionality
+* [ZOOKEEPER-4505](https://issues.apache.org/jira/browse/ZOOKEEPER-4505) -
CVE-2020-36518 - Upgrade jackson databind to 2.13.2.1
+* [ZOOKEEPER-4511](https://issues.apache.org/jira/browse/ZOOKEEPER-4511) -
Flaky test: FileTxnSnapLogMetricsTest.testFileTxnSnapLogMetrics
+* [ZOOKEEPER-4514](https://issues.apache.org/jira/browse/ZOOKEEPER-4514) -
ClientCnxnSocketNetty throwing NPE
+* [ZOOKEEPER-4515](https://issues.apache.org/jira/browse/ZOOKEEPER-4515) - ZK
Cli quit command always logs error
+* [ZOOKEEPER-4537](https://issues.apache.org/jira/browse/ZOOKEEPER-4537) -
Race between SyncThread and CommitProcessor thread
+* [ZOOKEEPER-4549](https://issues.apache.org/jira/browse/ZOOKEEPER-4549) -
ProviderRegistry may be repeatedly initialized
+* [ZOOKEEPER-4565](https://issues.apache.org/jira/browse/ZOOKEEPER-4565) -
Config watch path get truncated abnormally and fail chroot zookeeper client
+* [ZOOKEEPER-4647](https://issues.apache.org/jira/browse/ZOOKEEPER-4647) -
Tests don't pass on JDK20 because we try to mock InetAddress
+* [ZOOKEEPER-4654](https://issues.apache.org/jira/browse/ZOOKEEPER-4654) - Fix
C client test compilation error in Util.cc.
+* [ZOOKEEPER-4674](https://issues.apache.org/jira/browse/ZOOKEEPER-4674) - C
client tests don't pass on CI
+* [ZOOKEEPER-4719](https://issues.apache.org/jira/browse/ZOOKEEPER-4719) - Use
bouncycastle jdk18on instead of jdk15on
+
+## New Feature
+
+* [ZOOKEEPER-4570](https://issues.apache.org/jira/browse/ZOOKEEPER-4570) -
Admin server API for taking snapshot and stream out the data
+* [ZOOKEEPER-4655](https://issues.apache.org/jira/browse/ZOOKEEPER-4655) -
Communicate the Zxid that triggered a WatchEvent to fire
+
+## Improvement
+
+* [ZOOKEEPER-3731](https://issues.apache.org/jira/browse/ZOOKEEPER-3731) -
Disable HTTP TRACE Method
+* [ZOOKEEPER-3806](https://issues.apache.org/jira/browse/ZOOKEEPER-3806) - TLS
- dynamic loading for client trust/key store
+* [ZOOKEEPER-3860](https://issues.apache.org/jira/browse/ZOOKEEPER-3860) -
Avoid reverse DNS lookup for hostname verification when hostnames are provided
in the connection url
+* [ZOOKEEPER-4289](https://issues.apache.org/jira/browse/ZOOKEEPER-4289) -
Reduce the performance impact of Prometheus metrics
+* [ZOOKEEPER-4303](https://issues.apache.org/jira/browse/ZOOKEEPER-4303) -
ZooKeeperServerEmbedded could auto-assign and expose ports
+* [ZOOKEEPER-4464](https://issues.apache.org/jira/browse/ZOOKEEPER-4464) -
zooinspector display "Ephemeral Owner" in hex for easy match to jmx
session
+* [ZOOKEEPER-4467](https://issues.apache.org/jira/browse/ZOOKEEPER-4467) -
Missing op code (addWatch) in Request.op2String
+* [ZOOKEEPER-4472](https://issues.apache.org/jira/browse/ZOOKEEPER-4472) -
Support persistent watchers removing individually
+* [ZOOKEEPER-4474](https://issues.apache.org/jira/browse/ZOOKEEPER-4474) -
ZooDefs.opNames is unused
+* [ZOOKEEPER-4490](https://issues.apache.org/jira/browse/ZOOKEEPER-4490) -
Publish Clover results to SonarQube
+* [ZOOKEEPER-4491](https://issues.apache.org/jira/browse/ZOOKEEPER-4491) -
Adding SSL support to Zktreeutil
+* [ZOOKEEPER-4492](https://issues.apache.org/jira/browse/ZOOKEEPER-4492) -
Merge readOnly field into ConnectRequest and Response
+* [ZOOKEEPER-4494](https://issues.apache.org/jira/browse/ZOOKEEPER-4494) - Fix
error message format
+* [ZOOKEEPER-4518](https://issues.apache.org/jira/browse/ZOOKEEPER-4518) -
remove useless log in the PrepRequestProcessor#pRequest method
+* [ZOOKEEPER-4519](https://issues.apache.org/jira/browse/ZOOKEEPER-4519) -
Testable interface should have a testableCloseSocket() method
+* [ZOOKEEPER-4529](https://issues.apache.org/jira/browse/ZOOKEEPER-4529) -
Upgrade netty to 4.1.76.Final
+* [ZOOKEEPER-4531](https://issues.apache.org/jira/browse/ZOOKEEPER-4531) -
Revert Netty TCNative change
+* [ZOOKEEPER-4551](https://issues.apache.org/jira/browse/ZOOKEEPER-4551) - Do
not log spammy stacktrace when a client closes its connection
+* [ZOOKEEPER-4566](https://issues.apache.org/jira/browse/ZOOKEEPER-4566) -
Create tool for recursive snapshot analysis
+* [ZOOKEEPER-4573](https://issues.apache.org/jira/browse/ZOOKEEPER-4573) -
Encapsulate request bytebuffer in Request
+* [ZOOKEEPER-4575](https://issues.apache.org/jira/browse/ZOOKEEPER-4575) -
ZooKeeperServer#processPacket take record instead of bytes
+* [ZOOKEEPER-4616](https://issues.apache.org/jira/browse/ZOOKEEPER-4616) -
Upgrade docker image for the dev enviroment to resolve CVEs
+* [ZOOKEEPER-4622](https://issues.apache.org/jira/browse/ZOOKEEPER-4622) - Add
Netty-TcNative OpenSSL Support
+* [ZOOKEEPER-4636](https://issues.apache.org/jira/browse/ZOOKEEPER-4636) - Fix
zkServer.sh for AIX
+* [ZOOKEEPER-4657](https://issues.apache.org/jira/browse/ZOOKEEPER-4657) -
Publish SBOM artifacts
+* [ZOOKEEPER-4659](https://issues.apache.org/jira/browse/ZOOKEEPER-4659) -
Upgrade Commons CLI to 1.5.0 due to OWASP failing on 1.4 CVE-2021-37533
+* [ZOOKEEPER-4660](https://issues.apache.org/jira/browse/ZOOKEEPER-4660) -
Suppress false positive OWASP failure for CVE-2021-37533
+* [ZOOKEEPER-4661](https://issues.apache.org/jira/browse/ZOOKEEPER-4661) -
Upgrade Jackson Databind to 2.13.4.2 for CVE-2022-42003 CVE-2022-42004
+* [ZOOKEEPER-4705](https://issues.apache.org/jira/browse/ZOOKEEPER-4705) -
Restrict GitHub merge button to allow squash commit only
+* [ZOOKEEPER-4717](https://issues.apache.org/jira/browse/ZOOKEEPER-4717) -
Cache serialize data in the request to avoid repeat serialize.
+* [ZOOKEEPER-4718](https://issues.apache.org/jira/browse/ZOOKEEPER-4718) -
Removing unnecessary heap memory allocation in serialization can help reduce GC
pressure.
+
+## Test
-These release notes include new developer and user facing incompatibilities,
features, and major improvements.
+* [ZOOKEEPER-4630](https://issues.apache.org/jira/browse/ZOOKEEPER-4630) - Fix
the NPE from ConnectionMetricsTest.testRevalidateCount
+* [ZOOKEEPER-4676](https://issues.apache.org/jira/browse/ZOOKEEPER-4676) -
ReadOnlyModeTest doesn't not compile on JDK20 (Thread.suspend has been
removed)
+
+## Wish
-* [Migration Instructions](#migration)
-* [Changes](#changes)
+* [ZOOKEEPER-3615](https://issues.apache.org/jira/browse/ZOOKEEPER-3615) -
write a TLA+ specification to verify Zab protocol
+* [ZOOKEEPER-4710](https://issues.apache.org/jira/browse/ZOOKEEPER-4710) - Fix
ZkUtil deleteInBatch() by releasing semaphore after set flag
+* [ZOOKEEPER-4714](https://issues.apache.org/jira/browse/ZOOKEEPER-4714) -
Improve syncRequestProcessor performance
+* [ZOOKEEPER-4715](https://issues.apache.org/jira/browse/ZOOKEEPER-4715) -
Verify file size and position in testGetCurrentLogSize.
+
+## Task
-<a name="migration"></a>
-## Migration Instructions when Upgrading to 3.0.0
-<div class="section">
+* [ZOOKEEPER-4479](https://issues.apache.org/jira/browse/ZOOKEEPER-4479) -
Tests: C client test TestOperations.cc testTimeoutCausedByWatches1 is very
flaky on CI
+* [ZOOKEEPER-4482](https://issues.apache.org/jira/browse/ZOOKEEPER-4482) - Fix
LICENSE FILES for commons-io and commons-cli
+* [ZOOKEEPER-4599](https://issues.apache.org/jira/browse/ZOOKEEPER-4599) -
Upgrade Jetty to avoid CVE-2022-2048
+* [ZOOKEEPER-4641](https://issues.apache.org/jira/browse/ZOOKEEPER-4641) - GH
CI fails with error: implicit declaration of function FIPS_mode
+* [ZOOKEEPER-4642](https://issues.apache.org/jira/browse/ZOOKEEPER-4642) -
Remove Travis CI
+* [ZOOKEEPER-4649](https://issues.apache.org/jira/browse/ZOOKEEPER-4649) -
Upgrade netty to 4.1.86 because of CVE-2022-41915
+* [ZOOKEEPER-4669](https://issues.apache.org/jira/browse/ZOOKEEPER-4669) -
Upgrade snappy-java to 1.1.9.1 (in order to support M1 macs)
+* [ZOOKEEPER-4688](https://issues.apache.org/jira/browse/ZOOKEEPER-4688) -
Upgrade `cyclonedx-maven-plugin` to 2.7.6
+* [ZOOKEEPER-4700](https://issues.apache.org/jira/browse/ZOOKEEPER-4700) -
Update Jetty for fixing CVE-2023-26048 and CVE-2023-26049
+* [ZOOKEEPER-4707](https://issues.apache.org/jira/browse/ZOOKEEPER-4707) -
Update snappy-java to address multiple CVEs
+* [ZOOKEEPER-4709](https://issues.apache.org/jira/browse/ZOOKEEPER-4709) -
Upgrade Netty to 4.1.94.Final
+* [ZOOKEEPER-4716](https://issues.apache.org/jira/browse/ZOOKEEPER-4716) -
Upgrade jackson to 2.15.2, suppress two false positive CVE errors
-*You should only have to read this section if you are upgrading from a
previous version of ZooKeeper to version 3.0.0, otw skip down to
[changes](#changes)*
-A small number of changes in this release have resulted in non-backward
compatible Zookeeper client user code and server instance data. The following
instructions provide details on how to migrate code and date from version 2.2.1
to version 3.0.0.
-Note: ZooKeeper increments the major version number (major.minor.fix) when
backward incompatible changes are made to the source base. As part of the
migration from SourceForge we changed the package structure
(com.yahoo.zookeeper.* to org.apache.zookeeper.*) and felt it was a good time
to incorporate some changes that we had been withholding. As a result the
following will be required when migrating from 2.2.1 to 3.0.0 version of
ZooKeeper.
+# Release Notes - ZooKeeper - Version 3.8.2
-* [Migrating Client Code](#migration_code)
-* [Migrating Server Data](#migration_data)
-* [Migrating Server Configuration](#migration_config)
+## Bug
-<a name="migration_code"></a>
-### Migrating Client Code
+* [ZOOKEEPER-4674](https://issues.apache.org/jira/browse/ZOOKEEPER-4674) - C
client tests don't pass on CI
+* [ZOOKEEPER-4647](https://issues.apache.org/jira/browse/ZOOKEEPER-4647) -
Tests don't pass on JDK20 because we try to mock InetAddress
+* [ZOOKEEPER-4026](https://issues.apache.org/jira/browse/ZOOKEEPER-4026) -
CREATE2 requests embeded in a MULTI request only get a regular CREATE response
+* [ZOOKEEPER-4393](https://issues.apache.org/jira/browse/ZOOKEEPER-4393) -
Problem to connect to zookeeper in FIPS mode
-The underlying client-server protocol has changed in version 3.0.0
-of ZooKeeper. As a result clients must be upgraded along with
-serving clusters to ensure proper operation of the system (old
-pre-3.0.0 clients are not guaranteed to operate against upgraded
-3.0.0 servers and vice-versa).
+## Improvement
-<a name="Watch+Management"></a>
-#### Watch Management
+* [ZOOKEEPER-3860](https://issues.apache.org/jira/browse/ZOOKEEPER-3860) -
Avoid reverse DNS lookup for hostname verification when hostnames are provided
in the connection url
-In previous releases of ZooKeeper any watches registered by clients were lost
if the client lost a connection to a ZooKeeper server.
-This meant that developers had to track watches they were interested in and
reregister them if a session disconnect event was received.
-In this release the client library tracks watches that a client has registered
and reregisters the watches when a connection is made to a new server.
-Applications that still manually reregister interest should continue working
properly as long as they are able to handle unsolicited watches.
-For example, an old application may register a watch for /foo and /goo, lose
the connection, and reregister only /goo.
-As long as the application is able to receive a notification for /foo,
(probably ignoring it) it does not need to be changed.
-One caveat to the watch management: it is possible to miss an event for the
creation and deletion of a znode if watching for creation and both the create
and delete happens while the client is disconnected from ZooKeeper.
+## Task
-This release also allows clients to specify call specific watch functions.
-This gives the developer the ability to modularize logic in different watch
functions rather than cramming everything in the watch function attached to the
ZooKeeper handle.
-Call specific watch functions receive all session events for as long as they
are active, but will only receive the watch callbacks for which they are
registered.
+* [ZOOKEEPER-4599](https://issues.apache.org/jira/browse/ZOOKEEPER-4599) -
Upgrade Jetty to avoid CVE-2022-2048
+* [ZOOKEEPER-4669](https://issues.apache.org/jira/browse/ZOOKEEPER-4669) -
Upgrade snappy-java to 1.1.9.1 in order to support M1 macs
+* [ZOOKEEPER-4688](https://issues.apache.org/jira/browse/ZOOKEEPER-4688) -
Upgrade cyclonedx-maven-plugin to 2.7.6
+* [ZOOKEEPER-4700](https://issues.apache.org/jira/browse/ZOOKEEPER-4700) -
Update Jetty for fixing CVE-2023-26048 and CVE-2023-26049
+* [ZOOKEEPER-4707](https://issues.apache.org/jira/browse/ZOOKEEPER-4707) -
Update snappy-java to address multiple CVEs
+* [ZOOKEEPER-4709](https://issues.apache.org/jira/browse/ZOOKEEPER-4709) -
Upgrade Netty to 4.1.94.Final
+* [ZOOKEEPER-4716](https://issues.apache.org/jira/browse/ZOOKEEPER-4716) -
Upgrade jackson to 2.15.2 and suppress two false positive CVE errors
-<a name="Java+API"></a>
-#### Java API
-1. The java package structure has changed from **com.yahoo.zookeeper*** to
**org.apache.zookeeper***. This will probably affect all of your java code
which makes use of ZooKeeper APIs (typically import statements)
-1. A number of constants used in the client ZooKeeper API were re-specified
using enums (rather than ints). See
[ZOOKEEPER-7](https://issues.apache.org/jira/browse/ZOOKEEPER-7),
[ZOOKEEPER-132](https://issues.apache.org/jira/browse/ZOOKEEPER-132) and
[ZOOKEEPER-139](https://issues.apache.org/jira/browse/ZOOKEEPER-139) for full
details
-1. [ZOOKEEPER-18](https://issues.apache.org/jira/browse/ZOOKEEPER-18) removed
KeeperStateChanged, use KeeperStateDisconnected instead
-Also see [the current Java
API](http://zookeeper.apache.org/docs/current/apidocs/zookeeper-server/index.html)
+# Release Notes - ZooKeeper - Version 3.8.1
-<a name="C+API"></a>
-#### C API
+## Bug
-1. A number of constants used in the client ZooKeeper API were renamed in
order to reduce namespace collision, see
[ZOOKEEPER-6](https://issues.apache.org/jira/browse/ZOOKEEPER-6) for full
details
+* [ZOOKEEPER-3652](https://issues.apache.org/jira/browse/ZOOKEEPER-3652) -
Improper synchronization in ClientCnxn
+* [ZOOKEEPER-4308](https://issues.apache.org/jira/browse/ZOOKEEPER-4308) -
Flaky test: EagerACLFilterTest.testSetDataFail
+* [ZOOKEEPER-4460](https://issues.apache.org/jira/browse/ZOOKEEPER-4460) -
QuorumPeer overrides Thread.getId with different semantics
+* [ZOOKEEPER-4473](https://issues.apache.org/jira/browse/ZOOKEEPER-4473) -
zooInspector create root node fail with path validate
+* [ZOOKEEPER-4477](https://issues.apache.org/jira/browse/ZOOKEEPER-4477) -
Single Kerberos ticket renewal failure can prevent all future renewals since
Java 9
+* [ZOOKEEPER-4504](https://issues.apache.org/jira/browse/ZOOKEEPER-4504) -
ZKUtil#deleteRecursive causing deadlock in HDFS HA functionality
+* [ZOOKEEPER-4505](https://issues.apache.org/jira/browse/ZOOKEEPER-4505) -
CVE-2020-36518 - Upgrade jackson databind to 2.13.2.1
+* [ZOOKEEPER-4511](https://issues.apache.org/jira/browse/ZOOKEEPER-4511) -
Flaky test: FileTxnSnapLogMetricsTest.testFileTxnSnapLogMetrics
+* [ZOOKEEPER-4514](https://issues.apache.org/jira/browse/ZOOKEEPER-4514) -
ClientCnxnSocketNetty throwing NPE
+* [ZOOKEEPER-4515](https://issues.apache.org/jira/browse/ZOOKEEPER-4515) - ZK
Cli quit command always logs error
+* [ZOOKEEPER-4537](https://issues.apache.org/jira/browse/ZOOKEEPER-4537) -
Race between SyncThread and CommitProcessor thread
+* [ZOOKEEPER-4654](https://issues.apache.org/jira/browse/ZOOKEEPER-4654) - Fix
C client test compilation error in Util.cc.
-<a name="migration_data"></a>
-### Migrating Server Data
-The following issues resulted in changes to the on-disk data format (the
snapshot and transaction log files contained within the ZK data directory) and
require a migration utility to be run.
-
-* [ZOOKEEPER-27 Unique DB identifiers for servers and
clients](https://issues.apache.org/jira/browse/ZOOKEEPER-27)
-* [ZOOKEEPER-32 CRCs for ZooKeeper
data](https://issues.apache.org/jira/browse/ZOOKEEPER-32)
-* [ZOOKEEPER-33 Better ACL
management](https://issues.apache.org/jira/browse/ZOOKEEPER-33)
-* [ZOOKEEPER-38 headers (version+) in log/snap
files](https://issues.apache.org/jira/browse/ZOOKEEPER-38)
+## Improvement
-**The following must be run once, and only once, when upgrading the ZooKeeper
server instances to version 3.0.0.**
+* [ZOOKEEPER-4289](https://issues.apache.org/jira/browse/ZOOKEEPER-4289) -
Reduce the performance impact of Prometheus metrics
+* [ZOOKEEPER-4529](https://issues.apache.org/jira/browse/ZOOKEEPER-4529) -
Upgrade netty to 4.1.76.Final
+* [ZOOKEEPER-4531](https://issues.apache.org/jira/browse/ZOOKEEPER-4531) -
Revert Netty TCNative change
+* [ZOOKEEPER-4551](https://issues.apache.org/jira/browse/ZOOKEEPER-4551) - Do
not log spammy stacktrace when a client closes its connection
+* [ZOOKEEPER-4616](https://issues.apache.org/jira/browse/ZOOKEEPER-4616) -
Upgrade docker image for the dev enviroment to resolve CVEs
+* [ZOOKEEPER-4657](https://issues.apache.org/jira/browse/ZOOKEEPER-4657) -
Publish SBOM artifacts
+* [ZOOKEEPER-4659](https://issues.apache.org/jira/browse/ZOOKEEPER-4659) -
Upgrade Commons CLI to 1.5.0 due to OWASP failing on 1.4 CVE-2021-37533
+* [ZOOKEEPER-4660](https://issues.apache.org/jira/browse/ZOOKEEPER-4660) -
Suppress false positive OWASP failure for CVE-2021-37533
+* [ZOOKEEPER-4661](https://issues.apache.org/jira/browse/ZOOKEEPER-4661) -
Upgrade Jackson Databind to 2.13.4.2 for CVE-2022-42003 CVE-2022-42004
-###### Note
-> The <dataLogDir> and <dataDir> directories referenced below are specified by
the *dataLogDir*
- and *dataDir* specification in your ZooKeeper config file respectively.
*dataLogDir* defaults to
- the value of *dataDir* if not specified explicitly in the ZooKeeper server
config file (in which
- case provide the same directory for both parameters to the upgrade utility).
+## Task
+
+* [ZOOKEEPER-4479](https://issues.apache.org/jira/browse/ZOOKEEPER-4479) -
Tests: C client test TestOperations.cc testTimeoutCausedByWatches1 is very
flaky on CI
+* [ZOOKEEPER-4510](https://issues.apache.org/jira/browse/ZOOKEEPER-4510) -
dependency-check:check failing - reload4j-1.2.19.jar: CVE-2020-9493,
CVE-2022-23307
+* [ZOOKEEPER-4627](https://issues.apache.org/jira/browse/ZOOKEEPER-4627) -
High CVE-2022-2048 in jetty-*-9.4.46.v20220331.jar fixed in 9.4.47
+* [ZOOKEEPER-4632](https://issues.apache.org/jira/browse/ZOOKEEPER-4632) - Fix
NPE from ConnectionMetricsTest.testRevalidateCount
+* [ZOOKEEPER-4641](https://issues.apache.org/jira/browse/ZOOKEEPER-4641) - GH
CI fails with error: implicit declaration of function FIPS_mode
+* [ZOOKEEPER-4649](https://issues.apache.org/jira/browse/ZOOKEEPER-4649) -
Upgrade netty to 4.1.86 because of CVE-2022-41915
+* [ZOOKEEPER-4666](https://issues.apache.org/jira/browse/ZOOKEEPER-4666) - Fix
license files for Netty: some files are for 4.1.76 and some other files are for
4.1.86
+
+## Sub-task
+
+* [ZOOKEEPER-4327](https://issues.apache.org/jira/browse/ZOOKEEPER-4327) -
Flaky test: RequestThrottlerTest
+
+
+
+
+# Release Notes - ZooKeeper - Version 3.8.0
-1. Shutdown the ZooKeeper server cluster.
-1. Backup your <dataLogDir> and <dataDir> directories
-1. Run upgrade using
- * `bin/zkServer.sh upgrade <dataLogDir> <dataDir>`
-
- or
-
- * `java -classpath pathtolog4j:pathtozookeeper.jar UpgradeMain
<dataLogDir> <dataDir>`
- where <dataLogDir> is the directory where all transaction logs (log.*) are
stored. <dataDir> is the directory where all the snapshots (snapshot.*) are
stored.
-1. Restart the cluster.
-
-If you have any failure during the upgrade procedure keep reading to sanitize
your database.
-
-This is how upgrade works in ZooKeeper. This will help you troubleshoot in
case you have problems while upgrading
-
-1. Upgrade moves files from `<dataLogDir>` and `<dataDir>` to
`<dataLogDir>/version-1/` and `<dataDir>/version-1` respectively (version-1
sub-directory is created by the upgrade utility).
-1. Upgrade creates a new version sub-directory `<dataDir>/version-2` and
`<dataLogDir>/version-2`
-1. Upgrade reads the old database from `<dataDir>/version-1` and
`<dataLogDir>/version-1` into the memory and creates a new upgraded snapshot.
-1. Upgrade writes the new database in `<dataDir>/version-2`.
-
-Troubleshooting.
-
-
-1. In case you start ZooKeeper 3.0 without upgrading from 2.0 on a 2.0
database - the servers will start up with an empty database.
- This is because the servers assume that `<dataDir>/version-2` and
`<dataLogDir>/version-2` will have the database to start with. Since this will
be empty
- in case of no upgrade, the servers will start with an empty database. In such
a case, shutdown the ZooKeeper servers, remove the version-2 directory (remember
- this will lead to loss of updates after you started 3.0.)
- and then start the upgrade procedure.
-1. If the upgrade fails while trying to rename files into the version-1
directory, you should try and move all the files under `<dataDir>/version-1`
- and `<dataLogDir>/version-1` to `<dataDir>` and `<dataLogDir>` respectively.
Then try upgrade again.
-1. If you do not wish to run with ZooKeeper 3.0 and prefer to run with
ZooKeeper 2.0 and have already upgraded - you can run ZooKeeper 2 with
- the `<dataDir>` and `<dataLogDir>` directories changed to
`<dataDir>/version-1` and `<dataLogDir>/version-1`. Remember that you will lose
all the updates that you made after the upgrade.
-
-<a name="migration_config"></a>
-### Migrating Server Configuration
-
-There is a significant change to the ZooKeeper server configuration file.
-
-The default election algorithm, specified by the *electionAlg* configuration
attribute, has
-changed from a default of *0* to a default of *3*. See
-[Cluster Options](zookeeperAdmin.html#sc_clusterOptions) section of the
administrators guide, specifically
-the *electionAlg* and *server.X* properties.
-
-You will either need to explicitly set *electionAlg* to its previous default
value
-of *0* or change your *server.X* options to include the leader election port.
-
-
-<a name="changes"></a>
-## Changes Since ZooKeeper 2.2.1
-
-Version 2.2.1 code, documentation, binaries, etc... are still accessible on
[SourceForge](http://sourceforge.net/projects/zookeeper)
-
-| Issue | Notes |
-|-------|-------|
-|[ZOOKEEPER-43](https://issues.apache.org/jira/browse/ZOOKEEPER-43)|Server
side of auto reset watches.|
-|[ZOOKEEPER-132](https://issues.apache.org/jira/browse/ZOOKEEPER-132)|Create
Enum to replace CreateFlag in ZooKepper.create method|
-|[ZOOKEEPER-139](https://issues.apache.org/jira/browse/ZOOKEEPER-139)|Create
Enums for WatcherEvent's KeeperState and EventType|
-|[ZOOKEEPER-18](https://issues.apache.org/jira/browse/ZOOKEEPER-18)|keeper
state inconsistency|
-|[ZOOKEEPER-38](https://issues.apache.org/jira/browse/ZOOKEEPER-38)|headers in
log/snap files|
-|[ZOOKEEPER-8](https://issues.apache.org/jira/browse/ZOOKEEPER-8)|Stat
enchaned to include num of children and size|
-|[ZOOKEEPER-6](https://issues.apache.org/jira/browse/ZOOKEEPER-6)|List of
problem identifiers in zookeeper.h|
-|[ZOOKEEPER-7](https://issues.apache.org/jira/browse/ZOOKEEPER-7)|Use enums
rather than ints for types and state|
-|[ZOOKEEPER-27](https://issues.apache.org/jira/browse/ZOOKEEPER-27)|Unique DB
identifiers for servers and clients|
-|[ZOOKEEPER-32](https://issues.apache.org/jira/browse/ZOOKEEPER-32)|CRCs for
ZooKeeper data|
-|[ZOOKEEPER-33](https://issues.apache.org/jira/browse/ZOOKEEPER-33)|Better ACL
management|
-|[ZOOKEEPER-203](https://issues.apache.org/jira/browse/ZOOKEEPER-203)|fix
datadir typo in releasenotes|
-|[ZOOKEEPER-145](https://issues.apache.org/jira/browse/ZOOKEEPER-145)|write
detailed release notes for users migrating from 2.x to 3.0|
-|[ZOOKEEPER-23](https://issues.apache.org/jira/browse/ZOOKEEPER-23)|Auto reset
of watches on reconnect|
-|[ZOOKEEPER-191](https://issues.apache.org/jira/browse/ZOOKEEPER-191)|forrest
docs for upgrade.|
-|[ZOOKEEPER-201](https://issues.apache.org/jira/browse/ZOOKEEPER-201)|validate
magic number when reading snapshot and transaction logs|
-|[ZOOKEEPER-200](https://issues.apache.org/jira/browse/ZOOKEEPER-200)|the
magic number for snapshot and log must be different|
-|[ZOOKEEPER-199](https://issues.apache.org/jira/browse/ZOOKEEPER-199)|fix log
messages in persistence code|
-|[ZOOKEEPER-197](https://issues.apache.org/jira/browse/ZOOKEEPER-197)|create
checksums for snapshots|
-|[ZOOKEEPER-198](https://issues.apache.org/jira/browse/ZOOKEEPER-198)|apache
license header missing from FollowerSyncRequest.java|
-|[ZOOKEEPER-5](https://issues.apache.org/jira/browse/ZOOKEEPER-5)|Upgrade
Feature in Zookeeper server.|
-|[ZOOKEEPER-194](https://issues.apache.org/jira/browse/ZOOKEEPER-194)|Fix
terminology in zookeeperAdmin.xml|
-|[ZOOKEEPER-151](https://issues.apache.org/jira/browse/ZOOKEEPER-151)|Document
change to server configuration|
-|[ZOOKEEPER-193](https://issues.apache.org/jira/browse/ZOOKEEPER-193)|update
java example doc to compile with latest zookeeper|
-|[ZOOKEEPER-187](https://issues.apache.org/jira/browse/ZOOKEEPER-187)|CreateMode
api docs missing|
-|[ZOOKEEPER-186](https://issues.apache.org/jira/browse/ZOOKEEPER-186)|add new
"releasenotes.xml" to forrest documentation|
-|[ZOOKEEPER-190](https://issues.apache.org/jira/browse/ZOOKEEPER-190)|Reorg
links to docs and navs to docs into related sections|
-|[ZOOKEEPER-189](https://issues.apache.org/jira/browse/ZOOKEEPER-189)|forrest
build not validated xml of input documents|
-|[ZOOKEEPER-188](https://issues.apache.org/jira/browse/ZOOKEEPER-188)|Check
that election port is present for all servers|
-|[ZOOKEEPER-185](https://issues.apache.org/jira/browse/ZOOKEEPER-185)|Improved
version of FLETest|
-|[ZOOKEEPER-184](https://issues.apache.org/jira/browse/ZOOKEEPER-184)|tests:
An explicit include derective is needed for the usage of memcpy functions|
-|[ZOOKEEPER-183](https://issues.apache.org/jira/browse/ZOOKEEPER-183)|Array
subscript is above array bounds in od_completion, src/cli.c.|
-|[ZOOKEEPER-182](https://issues.apache.org/jira/browse/ZOOKEEPER-182)|zookeeper_init
accepts empty host-port string and returns valid pointer to zhandle_t.|
-|[ZOOKEEPER-17](https://issues.apache.org/jira/browse/ZOOKEEPER-17)|zookeeper_init
doc needs clarification|
-|[ZOOKEEPER-181](https://issues.apache.org/jira/browse/ZOOKEEPER-181)|Some
Source Forge Documents did not get moved over: javaExample, zookeeperTutorial,
zookeeperInternals|
-|[ZOOKEEPER-180](https://issues.apache.org/jira/browse/ZOOKEEPER-180)|Placeholder
sections needed in document for new topics that the umbrella jira discusses|
-|[ZOOKEEPER-179](https://issues.apache.org/jira/browse/ZOOKEEPER-179)|Programmer's
Guide "Basic Operations" section is missing content|
-|[ZOOKEEPER-178](https://issues.apache.org/jira/browse/ZOOKEEPER-178)|FLE
test.|
-|[ZOOKEEPER-159](https://issues.apache.org/jira/browse/ZOOKEEPER-159)|Cover
two corner cases of leader election|
-|[ZOOKEEPER-156](https://issues.apache.org/jira/browse/ZOOKEEPER-156)|update
programmer guide with acl details from old wiki page|
-|[ZOOKEEPER-154](https://issues.apache.org/jira/browse/ZOOKEEPER-154)|reliability
graph diagram in overview doc needs context|
-|[ZOOKEEPER-157](https://issues.apache.org/jira/browse/ZOOKEEPER-157)|Peer
can't find existing leader|
-|[ZOOKEEPER-155](https://issues.apache.org/jira/browse/ZOOKEEPER-155)|improve
"the zookeeper project" section of overview doc|
-|[ZOOKEEPER-140](https://issues.apache.org/jira/browse/ZOOKEEPER-140)|Deadlock
in QuorumCnxManager|
-|[ZOOKEEPER-147](https://issues.apache.org/jira/browse/ZOOKEEPER-147)|This is
version of the documents with most of the [tbd...] scrubbed out|
-|[ZOOKEEPER-150](https://issues.apache.org/jira/browse/ZOOKEEPER-150)|zookeeper
build broken|
-|[ZOOKEEPER-136](https://issues.apache.org/jira/browse/ZOOKEEPER-136)|sync
causes hang in all followers of quorum.|
-|[ZOOKEEPER-134](https://issues.apache.org/jira/browse/ZOOKEEPER-134)|findbugs
cleanup|
-|[ZOOKEEPER-133](https://issues.apache.org/jira/browse/ZOOKEEPER-133)|hudson
tests failing intermittently|
-|[ZOOKEEPER-144](https://issues.apache.org/jira/browse/ZOOKEEPER-144)|add
tostring support for watcher event, and enums for event type/state|
-|[ZOOKEEPER-21](https://issues.apache.org/jira/browse/ZOOKEEPER-21)|Improve zk
ctor/watcher|
-|[ZOOKEEPER-142](https://issues.apache.org/jira/browse/ZOOKEEPER-142)|Provide
Javadoc as to the maximum size of the data byte array that may be stored within
a znode|
-|[ZOOKEEPER-93](https://issues.apache.org/jira/browse/ZOOKEEPER-93)|Create
Documentation for Zookeeper|
-|[ZOOKEEPER-117](https://issues.apache.org/jira/browse/ZOOKEEPER-117)|threading
issues in Leader election|
-|[ZOOKEEPER-137](https://issues.apache.org/jira/browse/ZOOKEEPER-137)|client
watcher objects can lose events|
-|[ZOOKEEPER-131](https://issues.apache.org/jira/browse/ZOOKEEPER-131)|Old
leader election can elect a dead leader over and over again|
-|[ZOOKEEPER-130](https://issues.apache.org/jira/browse/ZOOKEEPER-130)|update
build.xml to support apache release process|
-|[ZOOKEEPER-118](https://issues.apache.org/jira/browse/ZOOKEEPER-118)|findbugs
flagged switch statement in followerrequestprocessor.run|
-|[ZOOKEEPER-115](https://issues.apache.org/jira/browse/ZOOKEEPER-115)|Potential
NPE in QuorumCnxManager|
-|[ZOOKEEPER-114](https://issues.apache.org/jira/browse/ZOOKEEPER-114)|cleanup
ugly event messages in zookeeper client|
-|[ZOOKEEPER-112](https://issues.apache.org/jira/browse/ZOOKEEPER-112)|src/java/main
ZooKeeper.java has test code embedded into it.|
-|[ZOOKEEPER-39](https://issues.apache.org/jira/browse/ZOOKEEPER-39)|Use
Watcher objects rather than boolean on read operations.|
-|[ZOOKEEPER-97](https://issues.apache.org/jira/browse/ZOOKEEPER-97)|supports
optional output directory in code generator.|
-|[ZOOKEEPER-101](https://issues.apache.org/jira/browse/ZOOKEEPER-101)|Integrate
ZooKeeper with "violations" feature on hudson|
-|[ZOOKEEPER-105](https://issues.apache.org/jira/browse/ZOOKEEPER-105)|Catch
Zookeeper exceptions and print on the stderr.|
-|[ZOOKEEPER-42](https://issues.apache.org/jira/browse/ZOOKEEPER-42)|Change
Leader Election to fast tcp.|
-|[ZOOKEEPER-48](https://issues.apache.org/jira/browse/ZOOKEEPER-48)|auth_id
now handled correctly when no auth ids present|
-|[ZOOKEEPER-44](https://issues.apache.org/jira/browse/ZOOKEEPER-44)|Create
sequence flag children with prefixes of 0's so that they can be
lexicographically sorted.|
-|[ZOOKEEPER-108](https://issues.apache.org/jira/browse/ZOOKEEPER-108)|Fix sync
operation reordering on a Quorum.|
-|[ZOOKEEPER-25](https://issues.apache.org/jira/browse/ZOOKEEPER-25)|Fuse
module for Zookeeper.|
-|[ZOOKEEPER-58](https://issues.apache.org/jira/browse/ZOOKEEPER-58)|Race
condition on ClientCnxn.java|
-|[ZOOKEEPER-56](https://issues.apache.org/jira/browse/ZOOKEEPER-56)|Add clover
support to build.xml.|
-|[ZOOKEEPER-75](https://issues.apache.org/jira/browse/ZOOKEEPER-75)|register
the ZooKeeper mailing lists with nabble.com|
-|[ZOOKEEPER-54](https://issues.apache.org/jira/browse/ZOOKEEPER-54)|remove
sleeps in the tests.|
-|[ZOOKEEPER-55](https://issues.apache.org/jira/browse/ZOOKEEPER-55)|build.xml
failes to retrieve a release number from SVN and the ant target "dist" fails|
-|[ZOOKEEPER-89](https://issues.apache.org/jira/browse/ZOOKEEPER-89)|invoke
WhenOwnerListener.whenNotOwner when the ZK connection fails|
-|[ZOOKEEPER-90](https://issues.apache.org/jira/browse/ZOOKEEPER-90)|invoke
WhenOwnerListener.whenNotOwner when the ZK session expires and the znode is the
leader|
-|[ZOOKEEPER-82](https://issues.apache.org/jira/browse/ZOOKEEPER-82)|Make the
ZooKeeperServer more DI friendly.|
-|[ZOOKEEPER-110](https://issues.apache.org/jira/browse/ZOOKEEPER-110)|Build
script relies on svnant, which is not compatible with subversion 1.5 working
copies|
-|[ZOOKEEPER-111](https://issues.apache.org/jira/browse/ZOOKEEPER-111)|Significant
cleanup of existing tests.|
-|[ZOOKEEPER-122](https://issues.apache.org/jira/browse/ZOOKEEPER-122)|Fix NPE
in jute's Utils.toCSVString.|
-|[ZOOKEEPER-123](https://issues.apache.org/jira/browse/ZOOKEEPER-123)|Fix the
wrong class is specified for the logger.|
-|[ZOOKEEPER-2](https://issues.apache.org/jira/browse/ZOOKEEPER-2)|Fix
synchronization issues in QuorumPeer and FastLeader election.|
-|[ZOOKEEPER-125](https://issues.apache.org/jira/browse/ZOOKEEPER-125)|Remove
unwanted class declaration in FastLeaderElection.|
-|[ZOOKEEPER-61](https://issues.apache.org/jira/browse/ZOOKEEPER-61)|Address in
client/server test cases.|
-|[ZOOKEEPER-75](https://issues.apache.org/jira/browse/ZOOKEEPER-75)|cleanup
the library directory|
-|[ZOOKEEPER-109](https://issues.apache.org/jira/browse/ZOOKEEPER-109)|cleanup
of NPE and Resource issue nits found by static analysis|
-|[ZOOKEEPER-76](https://issues.apache.org/jira/browse/ZOOKEEPER-76)|Commit
677109 removed the cobertura library, but not the build targets.|
-|[ZOOKEEPER-63](https://issues.apache.org/jira/browse/ZOOKEEPER-63)|Race
condition in client close|
-|[ZOOKEEPER-70](https://issues.apache.org/jira/browse/ZOOKEEPER-70)|Add
skeleton forrest doc structure for ZooKeeper|
-|[ZOOKEEPER-79](https://issues.apache.org/jira/browse/ZOOKEEPER-79)|Document
jacob's leader election on the wiki recipes page|
-|[ZOOKEEPER-73](https://issues.apache.org/jira/browse/ZOOKEEPER-73)|Move ZK
wiki from SourceForge to Apache|
-|[ZOOKEEPER-72](https://issues.apache.org/jira/browse/ZOOKEEPER-72)|Initial
creation/setup of ZooKeeper ASF site.|
-|[ZOOKEEPER-71](https://issues.apache.org/jira/browse/ZOOKEEPER-71)|Determine
what to do re ZooKeeper Changelog|
-|[ZOOKEEPER-68](https://issues.apache.org/jira/browse/ZOOKEEPER-68)|parseACLs
in ZooKeeper.java fails to parse elements of ACL, should be lastIndexOf rather
than IndexOf|
-|[ZOOKEEPER-130](https://issues.apache.org/jira/browse/ZOOKEEPER-130)|update
build.xml to support apache release process.|
-|[ZOOKEEPER-131](https://issues.apache.org/jira/browse/ZOOKEEPER-131)|Fix Old
leader election can elect a dead leader over and over again.|
-|[ZOOKEEPER-137](https://issues.apache.org/jira/browse/ZOOKEEPER-137)|client
watcher objects can lose events|
-|[ZOOKEEPER-117](https://issues.apache.org/jira/browse/ZOOKEEPER-117)|threading
issues in Leader election|
-|[ZOOKEEPER-128](https://issues.apache.org/jira/browse/ZOOKEEPER-128)|test
coverage on async client operations needs to be improved|
-|[ZOOKEEPER-127](https://issues.apache.org/jira/browse/ZOOKEEPER-127)|Use of
non-standard election ports in config breaks services|
-|[ZOOKEEPER-53](https://issues.apache.org/jira/browse/ZOOKEEPER-53)|tests
failing on solaris.|
-|[ZOOKEEPER-172](https://issues.apache.org/jira/browse/ZOOKEEPER-172)|FLE Test|
-|[ZOOKEEPER-41](https://issues.apache.org/jira/browse/ZOOKEEPER-41)|Sample
startup script|
-|[ZOOKEEPER-33](https://issues.apache.org/jira/browse/ZOOKEEPER-33)|Better ACL
management|
-|[ZOOKEEPER-49](https://issues.apache.org/jira/browse/ZOOKEEPER-49)|SetACL
does not work|
-|[ZOOKEEPER-20](https://issues.apache.org/jira/browse/ZOOKEEPER-20)|Child
watches are not triggered when the node is deleted|
-|[ZOOKEEPER-15](https://issues.apache.org/jira/browse/ZOOKEEPER-15)|handle
failure better in build.xml:test|
-|[ZOOKEEPER-11](https://issues.apache.org/jira/browse/ZOOKEEPER-11)|ArrayList
is used instead of List|
-|[ZOOKEEPER-45](https://issues.apache.org/jira/browse/ZOOKEEPER-45)|Restructure
the SVN repository after initial import |
-|[ZOOKEEPER-1](https://issues.apache.org/jira/browse/ZOOKEEPER-1)|Initial
ZooKeeper code contribution from Yahoo!|
+## New Feature
+
+* [ZOOKEEPER-3301](https://issues.apache.org/jira/browse/ZOOKEEPER-3301) -
Enforce the quota limit
+* [ZOOKEEPER-3601](https://issues.apache.org/jira/browse/ZOOKEEPER-3601) -
introduce the fault injection framework: Byteman for ZooKeeper
+* [ZOOKEEPER-3907](https://issues.apache.org/jira/browse/ZOOKEEPER-3907) - add
a documentation about alerting on metrics
+* [ZOOKEEPER-4211](https://issues.apache.org/jira/browse/ZOOKEEPER-4211) -
Expose Quota Metrics to Prometheus
+
+## Improvement
+
+* [ZOOKEEPER-1871](https://issues.apache.org/jira/browse/ZOOKEEPER-1871) - Add
an option to zkCli to wait for connection before executing commands
+* [ZOOKEEPER-2907](https://issues.apache.org/jira/browse/ZOOKEEPER-2907) -
Logged request buffer isn't useful
+* [ZOOKEEPER-3730](https://issues.apache.org/jira/browse/ZOOKEEPER-3730) - fix
a typo about watchManagerName in the zookeeperAdmin.md
+* [ZOOKEEPER-3798](https://issues.apache.org/jira/browse/ZOOKEEPER-3798) -
remove the useless code in the ProposalRequestProcessor#processRequest
+* [ZOOKEEPER-3800](https://issues.apache.org/jira/browse/ZOOKEEPER-3800) -
improve the log printing the address when
QuorumCnxManager#ListenerHandler's port binds
+* [ZOOKEEPER-3807](https://issues.apache.org/jira/browse/ZOOKEEPER-3807) - fix
the bad format when website pages build due to bash marker
+* [ZOOKEEPER-3841](https://issues.apache.org/jira/browse/ZOOKEEPER-3841) -
remove useless codes in the Leader.java
+* [ZOOKEEPER-3849](https://issues.apache.org/jira/browse/ZOOKEEPER-3849) -
improve the all logs with a necessary time unit at the start up of server
+* [ZOOKEEPER-3898](https://issues.apache.org/jira/browse/ZOOKEEPER-3898) - Fix
typos
+* [ZOOKEEPER-3942](https://issues.apache.org/jira/browse/ZOOKEEPER-3942) -
move traceMask calculation logic into the trace log guard
+* [ZOOKEEPER-3961](https://issues.apache.org/jira/browse/ZOOKEEPER-3961) -
Inaccurate Error Message
+* [ZOOKEEPER-4001](https://issues.apache.org/jira/browse/ZOOKEEPER-4001) -
AuditHelper.addAuditLog(...) more readable
+* [ZOOKEEPER-4037](https://issues.apache.org/jira/browse/ZOOKEEPER-4037) -
Closing autoCloseable resource with try-with-resources block
+* [ZOOKEEPER-4046](https://issues.apache.org/jira/browse/ZOOKEEPER-4046) - Fix
typo
+* [ZOOKEEPER-4058](https://issues.apache.org/jira/browse/ZOOKEEPER-4058) -
Update checkstyle-strict.xml by the latest version 8.39 of checkstyle
+* [ZOOKEEPER-4188](https://issues.apache.org/jira/browse/ZOOKEEPER-4188) - add
a doc about whoami CLI
+* [ZOOKEEPER-4209](https://issues.apache.org/jira/browse/ZOOKEEPER-4209) -
Update Netty version to 4.1.53.Final on 3.5 branch
+* [ZOOKEEPER-4217](https://issues.apache.org/jira/browse/ZOOKEEPER-4217) -
Report caller function name in `handle_socket_error_msg`
+* [ZOOKEEPER-4231](https://issues.apache.org/jira/browse/ZOOKEEPER-4231) - Add
document for snapshot compression config
+* [ZOOKEEPER-4259](https://issues.apache.org/jira/browse/ZOOKEEPER-4259) -
Allow AdminServer to force https
+* [ZOOKEEPER-4280](https://issues.apache.org/jira/browse/ZOOKEEPER-4280) - fix
the log format in the DataTree#deserializeZxidDigest method
+* [ZOOKEEPER-4281](https://issues.apache.org/jira/browse/ZOOKEEPER-4281) -
Packet length sanity check is inconsistent
+* [ZOOKEEPER-4284](https://issues.apache.org/jira/browse/ZOOKEEPER-4284) - Add
metrics for observer sync time
+* [ZOOKEEPER-4291](https://issues.apache.org/jira/browse/ZOOKEEPER-4291) -
ZooInspector has very high latency when operating against remote clusters
+* [ZOOKEEPER-4294](https://issues.apache.org/jira/browse/ZOOKEEPER-4294) -
FileSnap#findNValidSnapshots should not declare IOException
+* [ZOOKEEPER-4301](https://issues.apache.org/jira/browse/ZOOKEEPER-4301) - fix
typo
+* [ZOOKEEPER-4312](https://issues.apache.org/jira/browse/ZOOKEEPER-4312) -
ZooKeeperServerEmbedded: enhance server start/stop for testability
+* [ZOOKEEPER-4318](https://issues.apache.org/jira/browse/ZOOKEEPER-4318) -
Only report the follower sync time metrics if sync is completed
+* [ZOOKEEPER-4326](https://issues.apache.org/jira/browse/ZOOKEEPER-4326) - fix
typo in the recipes.md
+* [ZOOKEEPER-4346](https://issues.apache.org/jira/browse/ZOOKEEPER-4346) -
remove never used field
+* [ZOOKEEPER-4349](https://issues.apache.org/jira/browse/ZOOKEEPER-4349) -
delete the useless oraclePath directory generated by test suit
+* [ZOOKEEPER-4350](https://issues.apache.org/jira/browse/ZOOKEEPER-4350) -
improve the method: QuorumOracleMaj#overrideQuorumDecision
+* [ZOOKEEPER-4355](https://issues.apache.org/jira/browse/ZOOKEEPER-4355) - ZK
documentation side bar and welcome page are out of sync
+* [ZOOKEEPER-4370](https://issues.apache.org/jira/browse/ZOOKEEPER-4370) - add
zookeeperOracleQuorums.html link to webpage index
+* [ZOOKEEPER-4380](https://issues.apache.org/jira/browse/ZOOKEEPER-4380) -
Avoid NPE in RateLogger#rateLimitLog
+* [ZOOKEEPER-4382](https://issues.apache.org/jira/browse/ZOOKEEPER-4382) -
Update Maven Bundle Plugin in order to allow builds on JDK18
+* [ZOOKEEPER-4396](https://issues.apache.org/jira/browse/ZOOKEEPER-4396) -
Read Key/trust store password from file
+* [ZOOKEEPER-4402](https://issues.apache.org/jira/browse/ZOOKEEPER-4402) -
Added Hyperlink At LOGO
+* [ZOOKEEPER-4411](https://issues.apache.org/jira/browse/ZOOKEEPER-4411) -
improve the grammar issue[patch] in the README.md
+* [ZOOKEEPER-4427](https://issues.apache.org/jira/browse/ZOOKEEPER-4427) -
Migrate to Logback
+* [ZOOKEEPER-4435](https://issues.apache.org/jira/browse/ZOOKEEPER-4435) -
Typo in the log message of ServerCnxnFactory
+* [ZOOKEEPER-4453](https://issues.apache.org/jira/browse/ZOOKEEPER-4453) -
NettyServerCnxnFactory: allow to configure the early TLS connection drop feature
+* [ZOOKEEPER-4454](https://issues.apache.org/jira/browse/ZOOKEEPER-4454) -
Upgrade Netty to 4.1.73
+* [ZOOKEEPER-4462](https://issues.apache.org/jira/browse/ZOOKEEPER-4462) -
Upgrade Netty TCNative to 2.0.48
+
+## Bug
+
+* [ZOOKEEPER-3128](https://issues.apache.org/jira/browse/ZOOKEEPER-3128) - Get
CLI Command displays Authentication error for Authorization error
+* [ZOOKEEPER-3706](https://issues.apache.org/jira/browse/ZOOKEEPER-3706) -
ZooKeeper.close() would leak SendThread when the network is broken
+* [ZOOKEEPER-3781](https://issues.apache.org/jira/browse/ZOOKEEPER-3781) -
Zookeeper 3.5.7 not creating snapshot
+* [ZOOKEEPER-3877](https://issues.apache.org/jira/browse/ZOOKEEPER-3877) - JMX
Bean RemotePeerBean should enclose IPV6 host in square bracket same as
LocalPeerBean
+* [ZOOKEEPER-3887](https://issues.apache.org/jira/browse/ZOOKEEPER-3887) - In
SSL-only server zkServer.sh status command should use secureClientPortAddress
instead of clientPortAddress
+* [ZOOKEEPER-3943](https://issues.apache.org/jira/browse/ZOOKEEPER-3943) -
Zookeeper Inspector throwing NullPointerExceptions and not displaying properly
+* [ZOOKEEPER-3987](https://issues.apache.org/jira/browse/ZOOKEEPER-3987) -
Build failures when running surefire tests concurrently due to bind address
already in use
+* [ZOOKEEPER-3988](https://issues.apache.org/jira/browse/ZOOKEEPER-3988) -
org.apache.zookeeper.server.NettyServerCnxn.receiveMessage throws
NullPointerException
+* [ZOOKEEPER-3992](https://issues.apache.org/jira/browse/ZOOKEEPER-3992) -
addWatch api should check the null watch
+* [ZOOKEEPER-4007](https://issues.apache.org/jira/browse/ZOOKEEPER-4007) - A
typo in the ZKUtil#validateFileInput method
+* [ZOOKEEPER-4050](https://issues.apache.org/jira/browse/ZOOKEEPER-4050) -
Zookeeper Inspector reports "List of default node viewers is empty"
when not specifically run from the
zookeeper-contrib/zookeeper-contrib-zooinspector directory
+* [ZOOKEEPER-4191](https://issues.apache.org/jira/browse/ZOOKEEPER-4191) -
Missing executable bits in source release tarball
+* [ZOOKEEPER-4194](https://issues.apache.org/jira/browse/ZOOKEEPER-4194) -
ZooInspector throws NullPointerExceptions to console when node data is null
+* [ZOOKEEPER-4201](https://issues.apache.org/jira/browse/ZOOKEEPER-4201) - C
client: SASL-related compilation issues on macOS Catalina
+* [ZOOKEEPER-4204](https://issues.apache.org/jira/browse/ZOOKEEPER-4204) -
Flaky test - RequestPathMetricsCollectorTest.testMultiThreadPerf
+* [ZOOKEEPER-4205](https://issues.apache.org/jira/browse/ZOOKEEPER-4205) -
Test fails when port 8080 is in use
+* [ZOOKEEPER-4207](https://issues.apache.org/jira/browse/ZOOKEEPER-4207) - New
CI pipeline checks out master in branch builds too
+* [ZOOKEEPER-4210](https://issues.apache.org/jira/browse/ZOOKEEPER-4210) -
Zookeeper c client: detect connection loss during opportunistic async send
+* [ZOOKEEPER-4219](https://issues.apache.org/jira/browse/ZOOKEEPER-4219) -
Quota checks break setData in multi transactions
+* [ZOOKEEPER-4220](https://issues.apache.org/jira/browse/ZOOKEEPER-4220) -
Potential redundant connection attempts during leader election
+* [ZOOKEEPER-4230](https://issues.apache.org/jira/browse/ZOOKEEPER-4230) - Use
dynamic temp folder instead of static temp folder in RestMain
+* [ZOOKEEPER-4232](https://issues.apache.org/jira/browse/ZOOKEEPER-4232) -
InvalidSnapshotTest corrupts its own test data
+* [ZOOKEEPER-4247](https://issues.apache.org/jira/browse/ZOOKEEPER-4247) - NPE
while processing message from restarted quorum member
+* [ZOOKEEPER-4265](https://issues.apache.org/jira/browse/ZOOKEEPER-4265) -
Download page broken links
+* [ZOOKEEPER-4266](https://issues.apache.org/jira/browse/ZOOKEEPER-4266) -
Correct ZooKeeper version in documentation header
+* [ZOOKEEPER-4267](https://issues.apache.org/jira/browse/ZOOKEEPER-4267) - Fix
check-style issues
+* [ZOOKEEPER-4269](https://issues.apache.org/jira/browse/ZOOKEEPER-4269) -
acceptedEpoch.tmp rename failure will cause server startup error
+* [ZOOKEEPER-4272](https://issues.apache.org/jira/browse/ZOOKEEPER-4272) -
Upgrade Netty library to > 4.1.60 due to security vulnerability
CVE-2021-21295
+* [ZOOKEEPER-4275](https://issues.apache.org/jira/browse/ZOOKEEPER-4275) -
Slowness in sasl login or subject.doAs() causes zk client to falsely assume
that the server did not respond, closes connection and goes to unnecessary
retries
+* [ZOOKEEPER-4277](https://issues.apache.org/jira/browse/ZOOKEEPER-4277) -
dependency-check:check failing - jetty-server-9.4.38 CVE-2021-28165
+* [ZOOKEEPER-4278](https://issues.apache.org/jira/browse/ZOOKEEPER-4278) -
dependency-check:check failing - netty-transport-4.1.60.Final CVE-2021-21409
+* [ZOOKEEPER-4309](https://issues.apache.org/jira/browse/ZOOKEEPER-4309) -
QuorumCnxManager's ListenerHandler thread leak
+* [ZOOKEEPER-4311](https://issues.apache.org/jira/browse/ZOOKEEPER-4311) -
Fsync errors are ignored in AtomicFileWritingIdiom
+* [ZOOKEEPER-4325](https://issues.apache.org/jira/browse/ZOOKEEPER-4325) -
IllegalArgumentException when use ZkUtil::listSubTreeBFS to list "/"
+* [ZOOKEEPER-4337](https://issues.apache.org/jira/browse/ZOOKEEPER-4337) -
CVE-2021-34429 in jetty 9.4.38.v20210224 in zookeeper 3.7.0
+* [ZOOKEEPER-4342](https://issues.apache.org/jira/browse/ZOOKEEPER-4342) -
Robustify C client against errors during SASL negotiation
+* [ZOOKEEPER-4343](https://issues.apache.org/jira/browse/ZOOKEEPER-4343) -
OWASP Dependency-Check fails with CVE-2021-29425, commons-io-2.6
+* [ZOOKEEPER-4345](https://issues.apache.org/jira/browse/ZOOKEEPER-4345) -
Avoid NoSunchMethodException caused by shaded zookeeper jar
+* [ZOOKEEPER-4356](https://issues.apache.org/jira/browse/ZOOKEEPER-4356) -
Code blocks do not render correctly in ZK docs site
+* [ZOOKEEPER-4360](https://issues.apache.org/jira/browse/ZOOKEEPER-4360) -
Avoid NPE during metrics execution if the leader is not set on a FOLLOWER node
+* [ZOOKEEPER-4362](https://issues.apache.org/jira/browse/ZOOKEEPER-4362) -
ZKDatabase.txnCount logged non transactional requests
+* [ZOOKEEPER-4367](https://issues.apache.org/jira/browse/ZOOKEEPER-4367) -
Zookeeper#Login thread leak in case of Sasl AuthFailed.
+* [ZOOKEEPER-4372](https://issues.apache.org/jira/browse/ZOOKEEPER-4372) -
Zookeeper lock recipe doesn't parse negative sequence numbers correctly
+* [ZOOKEEPER-4377](https://issues.apache.org/jira/browse/ZOOKEEPER-4377) -
KeeperException.create has NullPointerException when low version client
requests the high version server
+* [ZOOKEEPER-4406](https://issues.apache.org/jira/browse/ZOOKEEPER-4406) - fix
the znode type for Barrier implementation in the zookeeperTutorial.md
+
+## Test
+
+* [ZOOKEEPER-4319](https://issues.apache.org/jira/browse/ZOOKEEPER-4319) -
Refactor AtomicFileWritingIdiomTest to use TempDir annotation
+* [ZOOKEEPER-4333](https://issues.apache.org/jira/browse/ZOOKEEPER-4333) -
QuorumSSLTest - testOCSP fails on JDK17
+* [ZOOKEEPER-4340](https://issues.apache.org/jira/browse/ZOOKEEPER-4340) - Add
tab unit test for StringUtils#split
+
+## Task
+
+* [ZOOKEEPER-3957](https://issues.apache.org/jira/browse/ZOOKEEPER-3957) -
Create Owasp check build on new Jenkins instance
+* [ZOOKEEPER-3970](https://issues.apache.org/jira/browse/ZOOKEEPER-3970) -
Enable ZooKeeperServerController to expire session
+* [ZOOKEEPER-3980](https://issues.apache.org/jira/browse/ZOOKEEPER-3980) - Fix
Jenkinsfiles with new tool names
+* [ZOOKEEPER-4233](https://issues.apache.org/jira/browse/ZOOKEEPER-4233) -
dependency-check:check failing - Jetty 9.4.35.v20201120 - CVE-2020-27223
+* [ZOOKEEPER-4315](https://issues.apache.org/jira/browse/ZOOKEEPER-4315) - Fix
NOTICE file in the source distribution
+* [ZOOKEEPER-4384](https://issues.apache.org/jira/browse/ZOOKEEPER-4384) - Fix
'se[r]ver' typo in ClientCnxn class.
+* [ZOOKEEPER-4414](https://issues.apache.org/jira/browse/ZOOKEEPER-4414) -
Update Netty to 4.1.70.Final
+* [ZOOKEEPER-4429](https://issues.apache.org/jira/browse/ZOOKEEPER-4429) -
Update jackson-databind to 2.13.1
+* [ZOOKEEPER-4465](https://issues.apache.org/jira/browse/ZOOKEEPER-4465) -
zooinspector logback pattern config add escape for '(' and ')'
+* [ZOOKEEPER-4469](https://issues.apache.org/jira/browse/ZOOKEEPER-4469) -
Suppress OWASP false positives related to Netty TCNative
+* [ZOOKEEPER-4478](https://issues.apache.org/jira/browse/ZOOKEEPER-4479) -
Suppress OWASP false positives zookeeper-jute-3.8.0-SNAPSHOT.jar:
CVE-2021-29425, CVE-2021-28164, CVE-2021-34429
+
+
+
+
+
+
+
+
+## Sub-task
+
+* [ZOOKEEPER-3774](https://issues.apache.org/jira/browse/ZOOKEEPER-3774) -
Close quorum socket asynchronously on the leader to avoid ping being blocked by
long socket closing time
+* [ZOOKEEPER-4251](https://issues.apache.org/jira/browse/ZOOKEEPER-4251) -
Flaky test: org.apache.zookeeper.test.WatcherTest
+* [ZOOKEEPER-4257](https://issues.apache.org/jira/browse/ZOOKEEPER-4257) -
learner.asyncSending, learner.closeSocketAsync and leader.closeSocketAsync
should be configurable in zoo.cfg
+* [ZOOKEEPER-4270](https://issues.apache.org/jira/browse/ZOOKEEPER-4270) -
Flaky test: QuorumPeerMainTest#testLeaderOutOfView
+* [ZOOKEEPER-4461](https://issues.apache.org/jira/browse/ZOOKEEPER-4461) -
Migrate zookeeper-contrib and -recipes projects.
+
+## Bug
+
+* [ZOOKEEPER-3128](https://issues.apache.org/jira/browse/ZOOKEEPER-3128) - Get
CLI Command displays Authentication error for Authorization error
+* [ZOOKEEPER-3706](https://issues.apache.org/jira/browse/ZOOKEEPER-3706) -
ZooKeeper.close() would leak SendThread when the network is broken
+* [ZOOKEEPER-3781](https://issues.apache.org/jira/browse/ZOOKEEPER-3781) -
Zookeeper 3.5.7 not creating snapshot
+* [ZOOKEEPER-3877](https://issues.apache.org/jira/browse/ZOOKEEPER-3877) - JMX
Bean RemotePeerBean should enclose IPV6 host in square bracket same as
LocalPeerBean
+* [ZOOKEEPER-3887](https://issues.apache.org/jira/browse/ZOOKEEPER-3887) - In
SSL-only server zkServer.sh status command should use secureClientPortAddress
instead of clientPortAddress
+* [ZOOKEEPER-3943](https://issues.apache.org/jira/browse/ZOOKEEPER-3943) -
Zookeeper Inspector throwing NullPointerExceptions and not displaying properly
+* [ZOOKEEPER-3987](https://issues.apache.org/jira/browse/ZOOKEEPER-3987) -
Build failures when running surefire tests concurrently due to bind address
already in use
+* [ZOOKEEPER-3988](https://issues.apache.org/jira/browse/ZOOKEEPER-3988) -
org.apache.zookeeper.server.NettyServerCnxn.receiveMessage throws
NullPointerException
+* [ZOOKEEPER-3992](https://issues.apache.org/jira/browse/ZOOKEEPER-3992) -
addWatch api should check the null watch
+* [ZOOKEEPER-4007](https://issues.apache.org/jira/browse/ZOOKEEPER-4007) - A
typo in the ZKUtil#validateFileInput method
+* [ZOOKEEPER-4050](https://issues.apache.org/jira/browse/ZOOKEEPER-4050) -
Zookeeper Inspector reports "List of default node viewers is empty"
when not specifically run from the
zookeeper-contrib/zookeeper-contrib-zooinspector directory
+* [ZOOKEEPER-4191](https://issues.apache.org/jira/browse/ZOOKEEPER-4191) -
Missing executable bits in source release tarball
+* [ZOOKEEPER-4194](https://issues.apache.org/jira/browse/ZOOKEEPER-4194) -
ZooInspector throws NullPointerExceptions to console when node data is null
+* [ZOOKEEPER-4201](https://issues.apache.org/jira/browse/ZOOKEEPER-4201) - C
client: SASL-related compilation issues on macOS Catalina
+* [ZOOKEEPER-4204](https://issues.apache.org/jira/browse/ZOOKEEPER-4204) -
Flaky test - RequestPathMetricsCollectorTest.testMultiThreadPerf
+* [ZOOKEEPER-4205](https://issues.apache.org/jira/browse/ZOOKEEPER-4205) -
Test fails when port 8080 is in use
+* [ZOOKEEPER-4207](https://issues.apache.org/jira/browse/ZOOKEEPER-4207) - New
CI pipeline checks out master in branch builds too
+* [ZOOKEEPER-4210](https://issues.apache.org/jira/browse/ZOOKEEPER-4210) -
Zookeeper c client: detect connection loss during opportunistic async send
+* [ZOOKEEPER-4219](https://issues.apache.org/jira/browse/ZOOKEEPER-4219) -
Quota checks break setData in multi transactions
+* [ZOOKEEPER-4220](https://issues.apache.org/jira/browse/ZOOKEEPER-4220) -
Potential redundant connection attempts during leader election
+* [ZOOKEEPER-4230](https://issues.apache.org/jira/browse/ZOOKEEPER-4230) - Use
dynamic temp folder instead of static temp folder in RestMain
+* [ZOOKEEPER-4232](https://issues.apache.org/jira/browse/ZOOKEEPER-4232) -
InvalidSnapshotTest corrupts its own test data
+* [ZOOKEEPER-4247](https://issues.apache.org/jira/browse/ZOOKEEPER-4247) - NPE
while processing message from restarted quorum member
+* [ZOOKEEPER-4265](https://issues.apache.org/jira/browse/ZOOKEEPER-4265) -
Download page broken links
+* [ZOOKEEPER-4266](https://issues.apache.org/jira/browse/ZOOKEEPER-4266) -
Correct ZooKeeper version in documentation header
+* [ZOOKEEPER-4267](https://issues.apache.org/jira/browse/ZOOKEEPER-4267) - Fix
check-style issues
+* [ZOOKEEPER-4269](https://issues.apache.org/jira/browse/ZOOKEEPER-4269) -
acceptedEpoch.tmp rename failure will cause server startup error
+* [ZOOKEEPER-4272](https://issues.apache.org/jira/browse/ZOOKEEPER-4272) -
Upgrade Netty library to > 4.1.60 due to security vulnerability
CVE-2021-21295
+* [ZOOKEEPER-4275](https://issues.apache.org/jira/browse/ZOOKEEPER-4275) -
Slowness in sasl login or subject.doAs() causes zk client to falsely assume
that the server did not respond, closes connection and goes to unnecessary
retries
+* [ZOOKEEPER-4277](https://issues.apache.org/jira/browse/ZOOKEEPER-4277) -
dependency-check:check failing - jetty-server-9.4.38 CVE-2021-28165
+* [ZOOKEEPER-4278](https://issues.apache.org/jira/browse/ZOOKEEPER-4278) -
dependency-check:check failing - netty-transport-4.1.60.Final CVE-2021-21409
+* [ZOOKEEPER-4309](https://issues.apache.org/jira/browse/ZOOKEEPER-4309) -
QuorumCnxManager's ListenerHandler thread leak
+* [ZOOKEEPER-4311](https://issues.apache.org/jira/browse/ZOOKEEPER-4311) -
Fsync errors are ignored in AtomicFileWritingIdiom
+* [ZOOKEEPER-4325](https://issues.apache.org/jira/browse/ZOOKEEPER-4325) -
IllegalArgumentException when use ZkUtil::listSubTreeBFS to list "/"
+* [ZOOKEEPER-4337](https://issues.apache.org/jira/browse/ZOOKEEPER-4337) -
CVE-2021-34429 in jetty 9.4.38.v20210224 in zookeeper 3.7.0
+* [ZOOKEEPER-4342](https://issues.apache.org/jira/browse/ZOOKEEPER-4342) -
Robustify C client against errors during SASL negotiation
+* [ZOOKEEPER-4343](https://issues.apache.org/jira/browse/ZOOKEEPER-4343) -
OWASP Dependency-Check fails with CVE-2021-29425, commons-io-2.6
+* [ZOOKEEPER-4345](https://issues.apache.org/jira/browse/ZOOKEEPER-4345) -
Avoid NoSunchMethodException caused by shaded zookeeper jar
+* [ZOOKEEPER-4356](https://issues.apache.org/jira/browse/ZOOKEEPER-4356) -
Code blocks do not render correctly in ZK docs site
+* [ZOOKEEPER-4360](https://issues.apache.org/jira/browse/ZOOKEEPER-4360) -
Avoid NPE during metrics execution if the leader is not set on a FOLLOWER node
+* [ZOOKEEPER-4362](https://issues.apache.org/jira/browse/ZOOKEEPER-4362) -
ZKDatabase.txnCount logged non transactional requests
+* [ZOOKEEPER-4367](https://issues.apache.org/jira/browse/ZOOKEEPER-4367) -
Zookeeper#Login thread leak in case of Sasl AuthFailed.
+* [ZOOKEEPER-4372](https://issues.apache.org/jira/browse/ZOOKEEPER-4372) -
Zookeeper lock recipe doesn't parse negative sequence numbers correctly
+* [ZOOKEEPER-4377](https://issues.apache.org/jira/browse/ZOOKEEPER-4377) -
KeeperException.create has NullPointerException when low version client
requests the high version server
+* [ZOOKEEPER-4406](https://issues.apache.org/jira/browse/ZOOKEEPER-4406) - fix
the znode type for Barrier implementation in the zookeeperTutorial.md
+
+
+## New Feature
+
+* [ZOOKEEPER-3301](https://issues.apache.org/jira/browse/ZOOKEEPER-3301) -
Enforce the quota limit
+* [ZOOKEEPER-3601](https://issues.apache.org/jira/browse/ZOOKEEPER-3601) -
introduce the fault injection framework: Byteman for ZooKeeper
+* [ZOOKEEPER-3907](https://issues.apache.org/jira/browse/ZOOKEEPER-3907) - add
a documentation about alerting on metrics
+* [ZOOKEEPER-4211](https://issues.apache.org/jira/browse/ZOOKEEPER-4211) -
Expose Quota Metrics to Prometheus
+
+
+## Improvement
+
+* [ZOOKEEPER-1871](https://issues.apache.org/jira/browse/ZOOKEEPER-1871) - Add
an option to zkCli to wait for connection before executing commands
+* [ZOOKEEPER-2907](https://issues.apache.org/jira/browse/ZOOKEEPER-2907) -
Logged request buffer isn't useful
+* [ZOOKEEPER-3730](https://issues.apache.org/jira/browse/ZOOKEEPER-3730) - fix
a typo about watchManagerName in the zookeeperAdmin.md
+* [ZOOKEEPER-3798](https://issues.apache.org/jira/browse/ZOOKEEPER-3798) -
remove the useless code in the ProposalRequestProcessor#processRequest
+* [ZOOKEEPER-3800](https://issues.apache.org/jira/browse/ZOOKEEPER-3800) -
improve the log printing the address when
QuorumCnxManager#ListenerHandler's port binds
+* [ZOOKEEPER-3807](https://issues.apache.org/jira/browse/ZOOKEEPER-3807) - fix
the bad format when website pages build due to bash marker
+* [ZOOKEEPER-3841](https://issues.apache.org/jira/browse/ZOOKEEPER-3841) -
remove useless codes in the Leader.java
+* [ZOOKEEPER-3849](https://issues.apache.org/jira/browse/ZOOKEEPER-3849) -
improve the all logs with a necessary time unit at the start up of server
+* [ZOOKEEPER-3898](https://issues.apache.org/jira/browse/ZOOKEEPER-3898) - Fix
typos
+* [ZOOKEEPER-3942](https://issues.apache.org/jira/browse/ZOOKEEPER-3942) -
move traceMask calculation logic into the trace log guard
+* [ZOOKEEPER-3961](https://issues.apache.org/jira/browse/ZOOKEEPER-3961) -
Inaccurate Error Message
+
+
+# Release Notes - ZooKeeper - Version 3.7.0
+
+## New Feature
+
+* [ZOOKEEPER-1112](https://issues.apache.org/jira/browse/ZOOKEEPER-1112) - Add
support for C client for SASL authentication
+* [ZOOKEEPER-3264](https://issues.apache.org/jira/browse/ZOOKEEPER-3264) - The
benchmark tools for zookeeper
+* [ZOOKEEPER-3301](https://issues.apache.org/jira/browse/ZOOKEEPER-3301) -
Enforce the quota limit
+* [ZOOKEEPER-3681](https://issues.apache.org/jira/browse/ZOOKEEPER-3681) - Add
s390x support for Travis build
+* [ZOOKEEPER-3714](https://issues.apache.org/jira/browse/ZOOKEEPER-3714) - Add
(Cyrus) SASL authentication support to Perl client
+* [ZOOKEEPER-3874](https://issues.apache.org/jira/browse/ZOOKEEPER-3874) -
Official API to start ZooKeeper server from Java
+* [ZOOKEEPER-3948](https://issues.apache.org/jira/browse/ZOOKEEPER-3948) -
Introduce a deterministic runtime behavior injection framework for
ZooKeeperServer testing
+* [ZOOKEEPER-3959](https://issues.apache.org/jira/browse/ZOOKEEPER-3959) -
Allow multiple superUsers with SASL
+* [ZOOKEEPER-3969](https://issues.apache.org/jira/browse/ZOOKEEPER-3969) - Add
whoami API and Cli command
+* [ZOOKEEPER-4030](https://issues.apache.org/jira/browse/ZOOKEEPER-4030) -
Optionally canonicalize host names in quorum SASL authentication
+
+## Improvement
+
+* [ZOOKEEPER-1871](https://issues.apache.org/jira/browse/ZOOKEEPER-1871) - Add
an option to zkCli to wait for connection before executing commands
+* [ZOOKEEPER-2272](https://issues.apache.org/jira/browse/ZOOKEEPER-2272) -
Code clean up in ZooKeeperServer and KerberosName
+* [ZOOKEEPER-2649](https://issues.apache.org/jira/browse/ZOOKEEPER-2649) - The
ZooKeeper do not write in log session ID in which the client has been
authenticated.
+* [ZOOKEEPER-2779](https://issues.apache.org/jira/browse/ZOOKEEPER-2779) - Add
option to not set ACL for reconfig node
+* [ZOOKEEPER-3101](https://issues.apache.org/jira/browse/ZOOKEEPER-3101) - Add
comment reminding users to add cases to zerror when adding values to ZOO_ERRORS
+* [ZOOKEEPER-3342](https://issues.apache.org/jira/browse/ZOOKEEPER-3342) - Use
StandardCharsets
+* [ZOOKEEPER-3411](https://issues.apache.org/jira/browse/ZOOKEEPER-3411) -
remove the deprecated CLI: ls2 and rmr
+* [ZOOKEEPER-3427](https://issues.apache.org/jira/browse/ZOOKEEPER-3427) -
Introduce SnapshotComparer that assists debugging with snapshots.
+* [ZOOKEEPER-3482](https://issues.apache.org/jira/browse/ZOOKEEPER-3482) -
SASL (Kerberos) Authentication with SSL for clients and Quorum
+* [ZOOKEEPER-3561](https://issues.apache.org/jira/browse/ZOOKEEPER-3561) -
Generalize target authentication scheme for ZooKeeper authentication
enforcement.
+* [ZOOKEEPER-3567](https://issues.apache.org/jira/browse/ZOOKEEPER-3567) - Add
SSL support for the zk python client
+* [ZOOKEEPER-3581](https://issues.apache.org/jira/browse/ZOOKEEPER-3581) - use
factory design pattern to refactor ZooKeeperMain
+* [ZOOKEEPER-3582](https://issues.apache.org/jira/browse/ZOOKEEPER-3582) -
refactor the async api call to lambda style
+* [ZOOKEEPER-3638](https://issues.apache.org/jira/browse/ZOOKEEPER-3638) -
Update Jetty to 9.4.24.v20191120
+* [ZOOKEEPER-3640](https://issues.apache.org/jira/browse/ZOOKEEPER-3640) -
Implement "batch mode" in cli_mt
+* [ZOOKEEPER-3649](https://issues.apache.org/jira/browse/ZOOKEEPER-3649) - ls
-s CLI need a line break
+* [ZOOKEEPER-3662](https://issues.apache.org/jira/browse/ZOOKEEPER-3662) -
Remove NPE Possibility in Follower Class
+* [ZOOKEEPER-3663](https://issues.apache.org/jira/browse/ZOOKEEPER-3663) -
Clean Up ZNodeName Class
+* [ZOOKEEPER-3666](https://issues.apache.org/jira/browse/ZOOKEEPER-3666) -
remove the deprecated LogFormatter tool
+* [ZOOKEEPER-3671](https://issues.apache.org/jira/browse/ZOOKEEPER-3671) - Use
ThreadLocalConcurrent to Replace Random and Math.random
+* [ZOOKEEPER-3678](https://issues.apache.org/jira/browse/ZOOKEEPER-3678) -
Remove Redundant GroupID from Maven POMs
+* [ZOOKEEPER-3679](https://issues.apache.org/jira/browse/ZOOKEEPER-3679) -
Upgrade maven-compiler-plugin For ZooKeeper-jute
+* [ZOOKEEPER-3682](https://issues.apache.org/jira/browse/ZOOKEEPER-3682) -
Stop initializing new SSL connection if ZK server is shutting down
+* [ZOOKEEPER-3683](https://issues.apache.org/jira/browse/ZOOKEEPER-3683) -
Discard requests that are delayed longer than a configured threshold
+* [ZOOKEEPER-3687](https://issues.apache.org/jira/browse/ZOOKEEPER-3687) -
Jute Use JDK hashCode Methods for Native Types
+* [ZOOKEEPER-3688](https://issues.apache.org/jira/browse/ZOOKEEPER-3688) - Use
StandardCharsets UTF-8 in Jute toString
+* [ZOOKEEPER-3690](https://issues.apache.org/jira/browse/ZOOKEEPER-3690) -
Improving leader efficiency via not processing learner's requests in commit
processor
+* [ZOOKEEPER-3691](https://issues.apache.org/jira/browse/ZOOKEEPER-3691) - Use
JDK String Join Method in ZK StringUtils
+* [ZOOKEEPER-3694](https://issues.apache.org/jira/browse/ZOOKEEPER-3694) - Use
Map computeIfAbsent in AvgMinMaxCounterSet Class
+* [ZOOKEEPER-3708](https://issues.apache.org/jira/browse/ZOOKEEPER-3708) -
Move Logging Code into Logging Guard in Learner
+* [ZOOKEEPER-3722](https://issues.apache.org/jira/browse/ZOOKEEPER-3722) -
make logs of ResponseCache more readable
+* [ZOOKEEPER-3728](https://issues.apache.org/jira/browse/ZOOKEEPER-3728) -
move traceMask calculation logic into the trace log in the
FinalRequestProcessor#processRequest
+* [ZOOKEEPER-3741](https://issues.apache.org/jira/browse/ZOOKEEPER-3741) - Fix
ZooKeeper 3.5 C client build on Fedora8
+* [ZOOKEEPER-3761](https://issues.apache.org/jira/browse/ZOOKEEPER-3761) -
upgrade JLine jar dependency
+* [ZOOKEEPER-3767](https://issues.apache.org/jira/browse/ZOOKEEPER-3767) - fix
a large amount of maven build warnings
+* [ZOOKEEPER-3785](https://issues.apache.org/jira/browse/ZOOKEEPER-3785) -
Make sources buildable with JDK14
+* [ZOOKEEPER-3786](https://issues.apache.org/jira/browse/ZOOKEEPER-3786) -
Simplify generation of VersionInfoMain and Info
+* [ZOOKEEPER-3788](https://issues.apache.org/jira/browse/ZOOKEEPER-3788) - Add
m2e configuration in pom.xml for Eclipse developers
+* [ZOOKEEPER-3790](https://issues.apache.org/jira/browse/ZOOKEEPER-3790) -
zkpython: Minor compilation and testing issues
+* [ZOOKEEPER-3791](https://issues.apache.org/jira/browse/ZOOKEEPER-3791) -
Miscellaneous Maven improvements
+* [ZOOKEEPER-3796](https://issues.apache.org/jira/browse/ZOOKEEPER-3796) -
Skip Learner Request made to ObserverMaster from going to next processor
+* [ZOOKEEPER-3805](https://issues.apache.org/jira/browse/ZOOKEEPER-3805) -
NIOServerCnxnFactory static block has no used code
+* [ZOOKEEPER-3808](https://issues.apache.org/jira/browse/ZOOKEEPER-3808) -
correct the documentation about digest.enabled
+* [ZOOKEEPER-3811](https://issues.apache.org/jira/browse/ZOOKEEPER-3811) -
cleaning up the code,A static field should be directly referred by its class
name
+* [ZOOKEEPER-3831](https://issues.apache.org/jira/browse/ZOOKEEPER-3831) - Add
a test that does a minimal validation of Apache Curator
+* [ZOOKEEPER-3833](https://issues.apache.org/jira/browse/ZOOKEEPER-3833) - Do
Not Override Plugin Versions from Apache Parent POM
+* [ZOOKEEPER-3836](https://issues.apache.org/jira/browse/ZOOKEEPER-3836) - Use
Commons and JDK Functions in ClientBase
+* [ZOOKEEPER-3839](https://issues.apache.org/jira/browse/ZOOKEEPER-3839) -
ReconfigBackupTest Remove getFileContent
+* [ZOOKEEPER-3883](https://issues.apache.org/jira/browse/ZOOKEEPER-3883) - new
UncaughtExceptionHandler object with lambda
+* [ZOOKEEPER-3893](https://issues.apache.org/jira/browse/ZOOKEEPER-3893) -
Enhance documentation for property ssl.clientAuth
+* [ZOOKEEPER-3913](https://issues.apache.org/jira/browse/ZOOKEEPER-3913) -
Upgrade to Netty 4.1.50.Final
+* [ZOOKEEPER-3919](https://issues.apache.org/jira/browse/ZOOKEEPER-3919) - Add
ARM64 jobs to Travis-CI
+* [ZOOKEEPER-3926](https://issues.apache.org/jira/browse/ZOOKEEPER-3926) -
make the rc constant in the ClientCnxn
+* [ZOOKEEPER-3934](https://issues.apache.org/jira/browse/ZOOKEEPER-3934) -
upgrade dependency-check to version 6.0.0
+* [ZOOKEEPER-3935](https://issues.apache.org/jira/browse/ZOOKEEPER-3935) -
Handle float metrics in check_zookeeper
+* [ZOOKEEPER-3941](https://issues.apache.org/jira/browse/ZOOKEEPER-3941) -
Upgrade commons-cli to 1.4
+* [ZOOKEEPER-3950](https://issues.apache.org/jira/browse/ZOOKEEPER-3950) - Add
support for BCFKS key/trust store format
+* [ZOOKEEPER-3952](https://issues.apache.org/jira/browse/ZOOKEEPER-3952) -
Remove commons-lang from ZooKeeper
+* [ZOOKEEPER-3956](https://issues.apache.org/jira/browse/ZOOKEEPER-3956) -
Remove json-simple from ZooKeeper
+* [ZOOKEEPER-3958](https://issues.apache.org/jira/browse/ZOOKEEPER-3958) -
Update dependency versions and eliminate java docs warnings
+* [ZOOKEEPER-3960](https://issues.apache.org/jira/browse/ZOOKEEPER-3960) -
Update ZooKeeper client documentation about key file format parameters
+* [ZOOKEEPER-3971](https://issues.apache.org/jira/browse/ZOOKEEPER-3971) -
Auto close resources with try catch block
+* [ZOOKEEPER-3978](https://issues.apache.org/jira/browse/ZOOKEEPER-3978) -
Adding additional security metrics to zookeeper
+* [ZOOKEEPER-3989](https://issues.apache.org/jira/browse/ZOOKEEPER-3989) -
GenerateLoad needs to use log for protecting sensitive data
+* [ZOOKEEPER-4000](https://issues.apache.org/jira/browse/ZOOKEEPER-4000) - use
the computeIfAbsent to simplify the Leader#processSync method
+* [ZOOKEEPER-4033](https://issues.apache.org/jira/browse/ZOOKEEPER-4033) -
Remove unnecessary judgment of null
+* [ZOOKEEPER-4048](https://issues.apache.org/jira/browse/ZOOKEEPER-4048) -
Upgrade Mockito to 3.6.28 - allow builds on JDK16
+* [ZOOKEEPER-4058](https://issues.apache.org/jira/browse/ZOOKEEPER-4058) -
Update checkstyle-strict.xml by the latest version 8.39 of checkstyle
+* [ZOOKEEPER-4188](https://issues.apache.org/jira/browse/ZOOKEEPER-4188) - add
a doc about whoami CLI
+* [ZOOKEEPER-4209](https://issues.apache.org/jira/browse/ZOOKEEPER-4209) -
Update Netty version to 4.1.53.Final on 3.5 branch
+* [ZOOKEEPER-4221](https://issues.apache.org/jira/browse/ZOOKEEPER-4221) -
Improve the error message when message goes above jute.maxbufer size
+* [ZOOKEEPER-4231](https://issues.apache.org/jira/browse/ZOOKEEPER-4231) - Add
document for snapshot compression config
+
+## Bug
+
+* [ZOOKEEPER-1105](https://issues.apache.org/jira/browse/ZOOKEEPER-1105) - c
client zookeeper_close not send CLOSE_OP request to server
+* [ZOOKEEPER-1677](https://issues.apache.org/jira/browse/ZOOKEEPER-1677) -
Misuse of INET_ADDRSTRLEN
+* [ZOOKEEPER-1998](https://issues.apache.org/jira/browse/ZOOKEEPER-1998) - C
library calls getaddrinfo unconditionally from zookeeper_interest
+* [ZOOKEEPER-2164](https://issues.apache.org/jira/browse/ZOOKEEPER-2164) -
fast leader election keeps failing
+* [ZOOKEEPER-2307](https://issues.apache.org/jira/browse/ZOOKEEPER-2307) -
ZooKeeper not starting because acceptedEpoch is less than the currentEpoch
+* [ZOOKEEPER-2475](https://issues.apache.org/jira/browse/ZOOKEEPER-2475) -
Include ZKClientConfig API in zoookeeper javadoc
+* [ZOOKEEPER-2490](https://issues.apache.org/jira/browse/ZOOKEEPER-2490) -
infinitely connect on windows
+* [ZOOKEEPER-2836](https://issues.apache.org/jira/browse/ZOOKEEPER-2836) -
QuorumCnxManager.Listener Thread Better handling of SocketTimeoutException
+* [ZOOKEEPER-3112](https://issues.apache.org/jira/browse/ZOOKEEPER-3112) - fd
leak due to UnresolvedAddressException on connect.
+* [ZOOKEEPER-3215](https://issues.apache.org/jira/browse/ZOOKEEPER-3215) -
Handle Java 9/11 additions of covariant return types to java.nio.ByteBuffer
methods
+* [ZOOKEEPER-3426](https://issues.apache.org/jira/browse/ZOOKEEPER-3426) - ZK
prime_connection(the Handshake) can complete without reading all the payload.
+* [ZOOKEEPER-3579](https://issues.apache.org/jira/browse/ZOOKEEPER-3579) -
handle NPE gracefully when the watch parameter of zookeeper java client is null
+* [ZOOKEEPER-3613](https://issues.apache.org/jira/browse/ZOOKEEPER-3613) -
ZKConfig fails to return proper value on getBoolean() when user accidentally
includes spaces at the end of the value
+* [ZOOKEEPER-3642](https://issues.apache.org/jira/browse/ZOOKEEPER-3642) -
Data inconsistency when the leader crashes right after sending SNAP sync
+* [ZOOKEEPER-3644](https://issues.apache.org/jira/browse/ZOOKEEPER-3644) -
Data loss after upgrading standalone ZK server 3.4.14 to 3.5.6 with
snapshot.trust.empty=true
+* [ZOOKEEPER-3651](https://issues.apache.org/jira/browse/ZOOKEEPER-3651) -
NettyServerCnxnFactoryTest is flaky
+* [ZOOKEEPER-3653](https://issues.apache.org/jira/browse/ZOOKEEPER-3653) -
Audit Log feature fails in a stand alone zookeeper setup
+* [ZOOKEEPER-3654](https://issues.apache.org/jira/browse/ZOOKEEPER-3654) -
Incorrect *_CFLAGS handling in Automake
+* [ZOOKEEPER-3656](https://issues.apache.org/jira/browse/ZOOKEEPER-3656) -
SyncRequestProcessor doesn't update lastFlushTime correctly on observers
+* [ZOOKEEPER-3667](https://issues.apache.org/jira/browse/ZOOKEEPER-3667) - set
jute.maxbuffer hexadecimal number throw parseInt error
+* [ZOOKEEPER-3698](https://issues.apache.org/jira/browse/ZOOKEEPER-3698) -
NoRouteToHostException when starting large ZooKeeper cluster on localhost
+* [ZOOKEEPER-3699](https://issues.apache.org/jira/browse/ZOOKEEPER-3699) -
upgrade jackson-databind to address CVE-2019-20330
+* [ZOOKEEPER-3701](https://issues.apache.org/jira/browse/ZOOKEEPER-3701) -
Split brain on log disk full
+* [ZOOKEEPER-3710](https://issues.apache.org/jira/browse/ZOOKEEPER-3710) -
[trivial bug] fix compile error in PurgeTxnTest introduced by ZOOKEEPER-3231
+* [ZOOKEEPER-3726](https://issues.apache.org/jira/browse/ZOOKEEPER-3726) -
invalid ipv6 address comparison in C client
+* [ZOOKEEPER-3737](https://issues.apache.org/jira/browse/ZOOKEEPER-3737) -
Unable to eliminate log4j1 transitive dependency
+* [ZOOKEEPER-3738](https://issues.apache.org/jira/browse/ZOOKEEPER-3738) -
Avoid use of broken codehaus properties-maven-plugin
+* [ZOOKEEPER-3739](https://issues.apache.org/jira/browse/ZOOKEEPER-3739) -
Remove use of com.sun.nio.file.SensitivityWatchEventModifier
+* [ZOOKEEPER-3745](https://issues.apache.org/jira/browse/ZOOKEEPER-3745) -
Update copyright notices from 2019 to 2020
+* [ZOOKEEPER-3748](https://issues.apache.org/jira/browse/ZOOKEEPER-3748) -
Resolve release requirements in download page
+* [ZOOKEEPER-3769](https://issues.apache.org/jira/browse/ZOOKEEPER-3769) -
fast leader election does not end if leader is taken down
+* [ZOOKEEPER-3772](https://issues.apache.org/jira/browse/ZOOKEEPER-3772) -
JettyAdminServer should not allow HTTP TRACE method
+* [ZOOKEEPER-3780](https://issues.apache.org/jira/browse/ZOOKEEPER-3780) -
restore Version.getRevision() to be backward compatible
+* [ZOOKEEPER-3781](https://issues.apache.org/jira/browse/ZOOKEEPER-3781) -
Zookeeper 3.5.7 not creating snapshot
+* [ZOOKEEPER-3782](https://issues.apache.org/jira/browse/ZOOKEEPER-3782) -
Replace filter with list comprehension for returning list in zk-merge-pr.py
+* [ZOOKEEPER-3793](https://issues.apache.org/jira/browse/ZOOKEEPER-3793) -
Request throttling is broken when RequestThrottler is disabled or configured
incorrectly.
+* [ZOOKEEPER-3801](https://issues.apache.org/jira/browse/ZOOKEEPER-3801) - Fix
Jenkins link in pom
+* [ZOOKEEPER-3814](https://issues.apache.org/jira/browse/ZOOKEEPER-3814) -
ZooKeeper config propagates even with disabled dynamic reconfig
+* [ZOOKEEPER-3818](https://issues.apache.org/jira/browse/ZOOKEEPER-3818) - fix
zkServer.sh status command to support SSL-only server
+* [ZOOKEEPER-3829](https://issues.apache.org/jira/browse/ZOOKEEPER-3829) -
Zookeeper refuses request after node expansion
+* [ZOOKEEPER-3830](https://issues.apache.org/jira/browse/ZOOKEEPER-3830) -
After add a new node, zookeeper cluster won't commit any proposal if this
new node is leader
+* [ZOOKEEPER-3832](https://issues.apache.org/jira/browse/ZOOKEEPER-3832) -
ZKHostnameVerifier rejects valid certificates with subjectAltNames
+* [ZOOKEEPER-3842](https://issues.apache.org/jira/browse/ZOOKEEPER-3842) -
Rolling scale up of zookeeper cluster does not work with reconfigEnabled=false
+* [ZOOKEEPER-3863](https://issues.apache.org/jira/browse/ZOOKEEPER-3863) - Do
not track global sessions in ReadOnlyZooKeeperServer
+* [ZOOKEEPER-3865](https://issues.apache.org/jira/browse/ZOOKEEPER-3865) - fix
backward-compatibility for ZooKeeperServer constructor
+* [ZOOKEEPER-3876](https://issues.apache.org/jira/browse/ZOOKEEPER-3876) -
zkServer.sh status command fails when IPV6 is configured
+* [ZOOKEEPER-3877](https://issues.apache.org/jira/browse/ZOOKEEPER-3877) - JMX
Bean RemotePeerBean should enclose IPV6 host in square bracket same as
LocalPeerBean
+* [ZOOKEEPER-3878](https://issues.apache.org/jira/browse/ZOOKEEPER-3878) -
Client connection fails if IPV6 is not enclosed in square brackets
+* [ZOOKEEPER-3885](https://issues.apache.org/jira/browse/ZOOKEEPER-3885) -
zoo_aremove_watches segfault: zk_hashtable needs locking!
+* [ZOOKEEPER-3891](https://issues.apache.org/jira/browse/ZOOKEEPER-3891) -
ZKCli commands give wrong error message "Authentication is not valid"
for insufficient permissions
+* [ZOOKEEPER-3895](https://issues.apache.org/jira/browse/ZOOKEEPER-3895) -
Client side NullPointerException in case of empty Multi operation
+* [ZOOKEEPER-3905](https://issues.apache.org/jira/browse/ZOOKEEPER-3905) -
Race condition causes sessions to be created for clients even though their
certificate authentication has failed
+* [ZOOKEEPER-3911](https://issues.apache.org/jira/browse/ZOOKEEPER-3911) -
Data inconsistency caused by DIFF sync uncommitted log
+* [ZOOKEEPER-3933](https://issues.apache.org/jira/browse/ZOOKEEPER-3933) -
owasp failing with json-simple-1.1.1.jar: CVE-2020-10663, CVE-2020-7712
+* [ZOOKEEPER-3937](https://issues.apache.org/jira/browse/ZOOKEEPER-3937) - C
client: avoid out-of-order packets during SASL negotiation
+* [ZOOKEEPER-3943](https://issues.apache.org/jira/browse/ZOOKEEPER-3943) -
Zookeeper Inspector throwing NullPointerExceptions and not displaying properly
+* [ZOOKEEPER-3944](https://issues.apache.org/jira/browse/ZOOKEEPER-3944) -
zookeeper c api sasl client memory leak
+* [ZOOKEEPER-3951](https://issues.apache.org/jira/browse/ZOOKEEPER-3951) -
Compile Error in Zookeeper.c without SASL
+* [ZOOKEEPER-3954](https://issues.apache.org/jira/browse/ZOOKEEPER-3954) - use
of uninitialized data in
zookeeper-client/zookeeper-client-c/src/zookeeper.c:free_auth_completion
+* [ZOOKEEPER-3955](https://issues.apache.org/jira/browse/ZOOKEEPER-3955) -
added a shebang or a 'shell' directive to lastRevision.sh
+* [ZOOKEEPER-3979](https://issues.apache.org/jira/browse/ZOOKEEPER-3979) -
Clients can corrupt the audit log
+* [ZOOKEEPER-3983](https://issues.apache.org/jira/browse/ZOOKEEPER-3983) - C
client test suite hangs forever 'sss' is configured in
/etc/nsswitch.conf
+* [ZOOKEEPER-3987](https://issues.apache.org/jira/browse/ZOOKEEPER-3987) -
Build failures when running surefire tests concurrently due to bind address
already in use
+* [ZOOKEEPER-3991](https://issues.apache.org/jira/browse/ZOOKEEPER-3991) -
QuorumCnxManager Listener port bind retry does not retry DNS lookup
+* [ZOOKEEPER-3992](https://issues.apache.org/jira/browse/ZOOKEEPER-3992) -
addWatch api should check the null watch
+* [ZOOKEEPER-3994](https://issues.apache.org/jira/browse/ZOOKEEPER-3994) -
disconnect reason wrong
+* [ZOOKEEPER-4045](https://issues.apache.org/jira/browse/ZOOKEEPER-4045) -
CVE-2020-25649 - Upgrade jackson databind to 2.10.5.1
+* [ZOOKEEPER-4050](https://issues.apache.org/jira/browse/ZOOKEEPER-4050) -
Zookeeper Inspector reports "List of default node viewers is empty"
when not specifically run from the
zookeeper-contrib/zookeeper-contrib-zooinspector directory
+* [ZOOKEEPER-4055](https://issues.apache.org/jira/browse/ZOOKEEPER-4055) -
Dockerfile can't build Zookeeper C client library
+* [ZOOKEEPER-4191](https://issues.apache.org/jira/browse/ZOOKEEPER-4191) -
Missing executable bits in source release tarball
+* [ZOOKEEPER-4199](https://issues.apache.org/jira/browse/ZOOKEEPER-4199) -
Avoid thread leak in QuorumRequestPipelineTest
+* [ZOOKEEPER-4200](https://issues.apache.org/jira/browse/ZOOKEEPER-4200) -
WatcherCleanerTest often fails on macOS Catalina
+* [ZOOKEEPER-4201](https://issues.apache.org/jira/browse/ZOOKEEPER-4201) - C
client: SASL-related compilation issues on macOS Catalina
+* [ZOOKEEPER-4205](https://issues.apache.org/jira/browse/ZOOKEEPER-4205) -
Test fails when port 8080 is in use
+* [ZOOKEEPER-4207](https://issues.apache.org/jira/browse/ZOOKEEPER-4207) - New
CI pipeline checks out master in branch builds too
+* [ZOOKEEPER-4219](https://issues.apache.org/jira/browse/ZOOKEEPER-4219) -
Quota checks break setData in multi transactions
+* [ZOOKEEPER-4220](https://issues.apache.org/jira/browse/ZOOKEEPER-4220) -
Potential redundant connection attempts during leader election
+* [ZOOKEEPER-4230](https://issues.apache.org/jira/browse/ZOOKEEPER-4230) - Use
dynamic temp folder instead of static temp folder in RestMain
+* [ZOOKEEPER-4232](https://issues.apache.org/jira/browse/ZOOKEEPER-4232) -
InvalidSnapshotTest corrupts its own test data
+
+## Test
+
+* [ZOOKEEPER-3664](https://issues.apache.org/jira/browse/ZOOKEEPER-3664) - test
+
+## Wish
+
+* [ZOOKEEPER-3415](https://issues.apache.org/jira/browse/ZOOKEEPER-3415) -
convert internal logic to use java 8 streams
+* [ZOOKEEPER-3763](https://issues.apache.org/jira/browse/ZOOKEEPER-3763) -
Restore ZKUtil.deleteRecursive in order to help compatibility of applications
with 3.5 and 3.6
+
+## Task
+
+* [ZOOKEEPER-3669](https://issues.apache.org/jira/browse/ZOOKEEPER-3669) - Use
switch Statement in ClientCnxn SendThread
+* [ZOOKEEPER-3677](https://issues.apache.org/jira/browse/ZOOKEEPER-3677) -
owasp checker failing for - CVE-2019-17571 Apache Log4j 1.2 deserialization of
untrusted data in SocketServer
+* [ZOOKEEPER-3695](https://issues.apache.org/jira/browse/ZOOKEEPER-3695) -
Source release tarball does not match repository in 3.6.0
+* [ZOOKEEPER-3696](https://issues.apache.org/jira/browse/ZOOKEEPER-3696) -
Support alternative algorithms for ACL digest
+* [ZOOKEEPER-3704](https://issues.apache.org/jira/browse/ZOOKEEPER-3704) -
upgrade maven dependency-check to 5.3.0
+* [ZOOKEEPER-3733](https://issues.apache.org/jira/browse/ZOOKEEPER-3733) - Fix
issues reported in 3.6.0rc3
+* [ZOOKEEPER-3734](https://issues.apache.org/jira/browse/ZOOKEEPER-3734) -
upgrade jackson-databind to address CVE-2020-8840
+* [ZOOKEEPER-3751](https://issues.apache.org/jira/browse/ZOOKEEPER-3751) -
upgrade jackson-databind to 2.10 from 2.9
+* [ZOOKEEPER-3794](https://issues.apache.org/jira/browse/ZOOKEEPER-3794) -
upgrade netty to address CVE-2020-11612
+* [ZOOKEEPER-3817](https://issues.apache.org/jira/browse/ZOOKEEPER-3817) -
owasp failing due to CVE-2020-9488
+* [ZOOKEEPER-3896](https://issues.apache.org/jira/browse/ZOOKEEPER-3896) -
Migrate Jenkins jobs to ci-hadoop.apache.org
+* [ZOOKEEPER-3957](https://issues.apache.org/jira/browse/ZOOKEEPER-3957) -
Create Owasp check build on new Jenkins instance
+* [ZOOKEEPER-3962](https://issues.apache.org/jira/browse/ZOOKEEPER-3962) -
Create .asf.yaml file for ZooKeeper repo
+* [ZOOKEEPER-3967](https://issues.apache.org/jira/browse/ZOOKEEPER-3967) -
Jetty License Update
+* [ZOOKEEPER-3973](https://issues.apache.org/jira/browse/ZOOKEEPER-3973) -
Create configuration files GitHub Actions CI builds
+* [ZOOKEEPER-3980](https://issues.apache.org/jira/browse/ZOOKEEPER-3980) - Fix
Jenkinsfiles with new tool names
+* [ZOOKEEPER-3981](https://issues.apache.org/jira/browse/ZOOKEEPER-3981) -
Flaky test MultipleAddressTest::testGetValidAddressWithNotValid
+* [ZOOKEEPER-4017](https://issues.apache.org/jira/browse/ZOOKEEPER-4017) -
Owasp check failing - Jetty 9.4.32 - CVE-2020-27216
+* [ZOOKEEPER-4023](https://issues.apache.org/jira/browse/ZOOKEEPER-4023) -
dependency-check:check failing - Jetty 9.4.34.v20201102 - CVE-2020-27218
+* [ZOOKEEPER-4056](https://issues.apache.org/jira/browse/ZOOKEEPER-4056) -
Update copyright notices from 2020 to 2021
+* [ZOOKEEPER-4233](https://issues.apache.org/jira/browse/ZOOKEEPER-4233) -
dependency-check:check failing - Jetty 9.4.35.v20201120 - CVE-2020-27223
+
+## Sub-task
+
+* [ZOOKEEPER-837](https://issues.apache.org/jira/browse/ZOOKEEPER-837) -
cyclic dependency ClientCnxn, ZooKeeper
+* [ZOOKEEPER-3574](https://issues.apache.org/jira/browse/ZOOKEEPER-3574) -
Close quorum socket asynchronously to avoid server shutdown stalled by long
socket closing time
+* [ZOOKEEPER-3575](https://issues.apache.org/jira/browse/ZOOKEEPER-3575) -
Moving sending packets in Learner to a separate thread
+* [ZOOKEEPER-3845](https://issues.apache.org/jira/browse/ZOOKEEPER-3845) - Add
metric JVM_PAUSE_TIME
+* [ZOOKEEPER-3852](https://issues.apache.org/jira/browse/ZOOKEEPER-3852) -
Upgrade jUnit in ZooKeeper-Jute
+* [ZOOKEEPER-3854](https://issues.apache.org/jira/browse/ZOOKEEPER-3854) -
Upgrade jUnit in ZooKeeper-Recipes
+* [ZOOKEEPER-3855](https://issues.apache.org/jira/browse/ZOOKEEPER-3855) -
Upgrade jUnit in ZooKeeper-Metrics-providers
+* [ZOOKEEPER-3856](https://issues.apache.org/jira/browse/ZOOKEEPER-3856) - Add
a couple metrics to track inflight diff syncs and snap syncs
+* [ZOOKEEPER-3859](https://issues.apache.org/jira/browse/ZOOKEEPER-3859) - Add
a couple request processor metrics
+* [ZOOKEEPER-3862](https://issues.apache.org/jira/browse/ZOOKEEPER-3862) -
Re-enable deprecation check after finishing jUnit upgrade
+* [ZOOKEEPER-3872](https://issues.apache.org/jira/browse/ZOOKEEPER-3872) -
Upgrade jUnit in ZooKeeper-server
+* [ZOOKEEPER-3953](https://issues.apache.org/jira/browse/ZOOKEEPER-3953) -
Update hamcrest-library to version 2.2
+
