[jira] Commented: (ZOOKEEPER-22) Automatic request retries on connect failover

[ https://issues.apache.org/jira/browse/ZOOKEEPER-22?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12616374#action_12616374 ] james strachan commented on ZOOKEEPER-22: - BTW this discussion came up recently

[jira] Created: (ZOOKEEPER-88) implement java.util.concurrent.locks.Lock

Reporter: james strachan we should implement the [java.util.concurrent.locks.Lock|http://java.sun.com/j2se/1.5.0/docs/api/java/util/concurrent/locks/Lock.html] to make it easier for folks to reuse the Lock and to help make the API be more natural to end users -- This message

[jira] Commented: (ZOOKEEPER-78) added a high level protocol/feature - for easy Leader Election or exclusive Write Lock creation

[ https://issues.apache.org/jira/browse/ZOOKEEPER-78?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12616416#action_12616416 ] james strachan commented on ZOOKEEPER-78: - Just added the WhenOwnerListener

[jira] Created: (ZOOKEEPER-89) invoke WhenOwnerListener.whenNotOwner() when the ZK connection fails

Type: Sub-task Reporter: james strachan -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.

[jira] Created: (ZOOKEEPER-90) invoke WhenOwnerListener.whenNotOwner() when the ZK session expires and the znode is the leader

-90 Project: Zookeeper Issue Type: Sub-task Reporter: james strachan -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.

[jira] Commented: (ZOOKEEPER-84) provide a mechanism to reconnect a ZooKeeper if a client receives a SessionExpiredException

[ https://issues.apache.org/jira/browse/ZOOKEEPER-84?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12616420#action_12616420 ] james strachan commented on ZOOKEEPER-84: - BTW here is the code

[jira] Commented: (ZOOKEEPER-63) Race condition in client close() operation

[ https://issues.apache.org/jira/browse/ZOOKEEPER-63?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12616426#action_12616426 ] james strachan commented on ZOOKEEPER-63: - So this patch does not attempt to fix

[jira] Resolved: (ZOOKEEPER-90) invoke WhenOwnerListener.whenNotOwner() when the ZK session expires and the znode is the leader

[ https://issues.apache.org/jira/browse/ZOOKEEPER-90?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] james strachan resolved ZOOKEEPER-90. - Resolution: Fixed this is now fixed in [this patch|http://svn.apache.org/viewvc?rev

[jira] Created: (ZOOKEEPER-91) provide an option for the WriteLock to also watch the locks own znode, so that if someone else deletes it then it is equivalent to calling WriteLock.unlock()

() - Key: ZOOKEEPER-91 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-91 Project: Zookeeper Issue Type: Sub-task Components: java client Reporter: james strachan Most clients probably wont need

[jira] Updated: (ZOOKEEPER-88) implement java.util.concurrent.locks.Lock

[ https://issues.apache.org/jira/browse/ZOOKEEPER-88?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] james strachan updated ZOOKEEPER-88: Status: Patch Available (was: Open) I've just submitted an [initial patch

[jira] Commented: (ZOOKEEPER-74) Cleaning/restructuring up Zookeeper server code

[ https://issues.apache.org/jira/browse/ZOOKEEPER-74?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12616518#action_12616518 ] james strachan commented on ZOOKEEPER-74: - its a very minor thing

[jira] Commented: (ZOOKEEPER-83) Switch to using maven to build ZooKeeper

[ https://issues.apache.org/jira/browse/ZOOKEEPER-83?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12615954#action_12615954 ] james strachan commented on ZOOKEEPER-83: - Note its pretty trivial to maintain

mailing lists archived on nabble.com?

Many apache projects including Hadoop register with nabble to host online forums great online archives of the mailing lists... http://www.nabble.com/Hadoop-f17066.html Currently there's hadoop-core, hbase and lucene on there. I often refer to mailing list posts by nabble link; they're really

Re: things lock up when the client reconnects?

James Strachan [EMAIL PROTECTED]: 2008/7/22 Flavio Junqueira [EMAIL PROTECTED]: James, I'd like to clarify what exactly is the issue you're looking at. If you provide a list of ZooKeeper servers, then a client will try to reconnect to another ZooKeeper server upon a disconnection. Reconnecting

[jira] Commented: (ZOOKEEPER-84) provide a mechanism to reconnect a ZooKeeper if a client receives a SessionExpiredException

[ https://issues.apache.org/jira/browse/ZOOKEEPER-84?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12616065#action_12616065 ] james strachan commented on ZOOKEEPER-84: - I hear you :) So an Elect Leader

[jira] Commented: (ZOOKEEPER-84) provide a mechanism to reconnect a ZooKeeper if a client receives a SessionExpiredException

[ https://issues.apache.org/jira/browse/ZOOKEEPER-84?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12616114#action_12616114 ] james strachan commented on ZOOKEEPER-84: - You can mark this issue as RESOLVED

Re: when should a SessionExpiredException occur?

2008/7/23 James Strachan [EMAIL PROTECTED]: 2008/7/23 Benjamin Reed [EMAIL PROTECTED]: SessionExpiredExceptions should be extremely rare. Basically they should only happen if a machine goes down (of course that would mean no exception would actually get generated since the client is dead

do the test cases work for anyone else?

I've always had some tests failing on most boxes I try; I wasn't sure if everyone else got those or if they do work on some platforms? On OS X I get these failures [junit] Test org.apache.zookeeper.test.AsyncTest FAILED [junit] Test org.apache.zookeeper.test.WatcherFuncTest FAILED On a

[jira] Updated: (ZOOKEEPER-78) added a high level protocol/feature - for easy Leader Election or exclusive Write Lock creation

[ https://issues.apache.org/jira/browse/ZOOKEEPER-78?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] james strachan updated ZOOKEEPER-78: Assignee: (was: james strachan) Status: Patch Available (was: Open) Patch

[jira] Commented: (ZOOKEEPER-63) Race condition in client close() operation

[ https://issues.apache.org/jira/browse/ZOOKEEPER-63?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12616136#action_12616136 ] james strachan commented on ZOOKEEPER-63: - I wonder if I've seen this too - I can

Re: do the test cases work for anyone else?

FWIW I've ran the tests a few times; I think all these 4 tests have timing failures in them. I've seen all of them fail on OS X at some point. Sometimes only 2 will fail. On Linux I've seen just ClientTest fail. 2008/7/23 Patrick Hunt [EMAIL PROTECTED]: I'm on ubuntu (hardy heron) and they

[jira] Commented: (ZOOKEEPER-84) provide a mechanism to reconnect a ZooKeeper if a client receives a SessionExpiredException

[ https://issues.apache.org/jira/browse/ZOOKEEPER-84?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12616144#action_12616144 ] james strachan commented on ZOOKEEPER-84: - If ZOOKEEPER-78 ever gets committed

[jira] Created: (ZOOKEEPER-85) register the ZooKeeper mailing lists with nabble.com

: james strachan Assignee: Patrick Hunt Many apache projects including Hadoop register with nabble to host online forums great online archives of the mailing lists... http://www.nabble.com/Hadoop-f17066.html Currently there's hadoop-core, hbase and lucene on there. I often refer

[jira] Updated: (ZOOKEEPER-63) Race condition in client close() operation

[ https://issues.apache.org/jira/browse/ZOOKEEPER-63?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] james strachan updated ZOOKEEPER-63: Attachment: patch_ZOOKEEPER-63.patch This patch avoids the close() method blocking

[jira] Updated: (ZOOKEEPER-63) Race condition in client close() operation

[ https://issues.apache.org/jira/browse/ZOOKEEPER-63?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] james strachan updated ZOOKEEPER-63: Status: Patch Available (was: Open) about to attach a patch Race condition in client

Re: assigning JIRAs to non committers

Cool thanks for the heads up! You live and learn :) Its funny how totally different all the various Apache projects are and how they get things done. My bad for not reading the contributing section of the wiki yet :) 2008/7/23 Patrick Hunt [EMAIL PROTECTED]: James Strachan wrote: Just an idle

Re: Website

2008/7/23 Doug Cutting [EMAIL PROTECTED]: James Strachan wrote: Tools like wikis are personal things; and folks tend to prefer to use the tool they know. That's a key point. To make a switch you'd need: 1. Someone familiar with Confluence to lead the transition, convert the existing

[jira] Updated: (ZOOKEEPER-86) intermittent test failure of org.apache.zookeeper.test.AsyncTest

[ https://issues.apache.org/jira/browse/ZOOKEEPER-86?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] james strachan updated ZOOKEEPER-86: Attachment: patch_for_ZOOKEEPER-86.patch this patch seems to fix the test case on OS X

[jira] Commented: (ZOOKEEPER-83) Switch to using maven to build ZooKeeper

[ https://issues.apache.org/jira/browse/ZOOKEEPER-83?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12615546#action_12615546 ] james strachan commented on ZOOKEEPER-83: - I just took a look at the patch

[jira] Commented: (ZOOKEEPER-78) added a high level protocol/feature - for easy Leader Election or exclusive Write Lock creation

[ https://issues.apache.org/jira/browse/ZOOKEEPER-78?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12615618#action_12615618 ] james strachan commented on ZOOKEEPER-78: - Great catch Benjamin! I've a working

[jira] Created: (ZOOKEEPER-84) provide a mechanism to reconnect a ZooKeeper if a client receives a SessionExpiredException

Project: Zookeeper Issue Type: Improvement Components: java client Reporter: james strachan am about to attach a patch which adds a reconnect() method to easily re-establish a connection if a session expires - along with a toString() implementation

Re: auto-reconnection ZooKeeper proxy?

patch :) and the code should only be executed rarely so performance isn't such an issue. Thoughts? 2008/7/18 James Strachan [EMAIL PROTECTED]: background I work on the ActiveMQ project which implements the JMS API - which is a kinda complex thing but it involves a number of objects

[jira] Updated: (ZOOKEEPER-84) provide a mechanism to reconnect a ZooKeeper if a client receives a SessionExpiredException

[ https://issues.apache.org/jira/browse/ZOOKEEPER-84?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] james strachan updated ZOOKEEPER-84: Status: Patch Available (was: Open) about to submit a match - whoops forgot to add

[jira] Updated: (ZOOKEEPER-84) provide a mechanism to reconnect a ZooKeeper if a client receives a SessionExpiredException

[ https://issues.apache.org/jira/browse/ZOOKEEPER-84?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] james strachan updated ZOOKEEPER-84: Attachment: reconnect_patch.patch sorry I forgot to add the patch before :) here

Re: Recipe contrib -- was Re: [PATCH] a simple Leader Election or exclusive Write Lock protocol/policy

of finding the recipe that wasn't dependent on the language that implements the recipe. ben James Strachan wrote: 2008/7/17 Benjamin Reed [EMAIL PROTECTED]: Excellent proposal. The only thing I would add is that there should be an english description of the recipe in subversion. That way

javadoc for the Write Lock / Leader Election

The other thread was already quite big and covering a large range of issues so thought I'd spin up a little separate thread :) I've just updated the patch to include better javadoc which is linked to an embedded HTML documentation describing the protocol. The documention includes the pseudocode

javadoc for the Write Lock / Leader Election

The other thread was already quite big and covering a large range of issues so thought I'd spin up a little separate thread :) I've just updated the patch to include better javadoc which is linked to an embedded HTML documentation describing the protocol. The documention includes the pseudocode

Re: javadoc for the Write Lock / Leader Election

Thanks for the clarification. I think it makes lots of sense for the leader to write to some canonical place to advertise itself; if others are interested in knowing if it is the leader 2008/7/18 Flavio Junqueira [EMAIL PROTECTED]: Hi James, the fact that the client's node has another node n

[jira] Updated: (ZOOKEEPER-78) added a high level protocol/feature - for easy Leader Election or exclusive Write Lock creation

[ https://issues.apache.org/jira/browse/ZOOKEEPER-78?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] james strachan updated ZOOKEEPER-78: Attachment: (was: writeLock_protocol_with_documentation-version2.patch) added

[jira] Updated: (ZOOKEEPER-78) added a high level protocol/feature - for easy Leader Election or exclusive Write Lock creation

[ https://issues.apache.org/jira/browse/ZOOKEEPER-78?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] james strachan updated ZOOKEEPER-78: Attachment: (was: writeLock_protocol.patch) added a high level protocol/feature

[jira] Commented: (ZOOKEEPER-78) added a high level protocol/feature - for easy Leader Election or exclusive Write Lock creation

[ https://issues.apache.org/jira/browse/ZOOKEEPER-78?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12614748#action_12614748 ] james strachan commented on ZOOKEEPER-78: - BTW I just deleted the other 2 patches

Re: An interest in increasing the DI'ness of ZooKeeper?

+1 :) I'm a fellow ActiveMQ hacker too and would love to see ZK included with ActiveMQ. Dependency Injection can really help keep your code simple but leaving it flexible so it can be used in many different ways. Here's some links on DI http://martinfowler.com/articles/injection.html

auto-reconnection ZooKeeper proxy?

background I work on the ActiveMQ project which implements the JMS API - which is a kinda complex thing but it involves a number of objects (Connections, Sessions, Producers, Consumers). In some JMS providers its the end users responsibility to deal with detecting a connection failure (from any

[jira] Updated: (ZOOKEEPER-78) added a high level protocol/feature - for easy Leader Election or exclusive Write Lock creation

[ https://issues.apache.org/jira/browse/ZOOKEEPER-78?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] james strachan updated ZOOKEEPER-78: Attachment: writeLock_protocol.patch added a high level protocol/feature - for easy

[jira] Commented: (ZOOKEEPER-79) Document jacob's leader election on the wiki recipes page

[ https://issues.apache.org/jira/browse/ZOOKEEPER-79?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12614448#action_12614448 ] james strachan commented on ZOOKEEPER-79: - Ah cool :) Was just checking we were