[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13562632#comment-13562632 ] Hudson commented on HBASE-6775: --- Integrated in HBase-TRUNK-on-Hadoop-2.0.0 #374 (See [https://builds.apache.org/job/HBase-TRUNK-on-Hadoop-2.0.0/374/]) HBASE-7382 Port ZK.multi support from HBASE-6775 to 0.96 (Gregory, Himanshu and Ted) (Revision 1438317) Result = FAILURE tedyu : Files : * /hbase/trunk/hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java * /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/zookeeper/RecoverableZooKeeper.java * /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKUtil.java * /hbase/trunk/hbase-server/src/main/resources/hbase-default.xml * /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKMulti.java Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 Attachments: HBASE-6775-v2.patch This issue introduces the ability for the HMaster to make use of ZooKeeper's multi-update functionality. This allows certain ZooKeeper operations to complete more quickly and prevents some issues with rare ZooKeeper failure scenarios (see the release note of HBASE-6710 for an example). This feature is off by default; to enable set hbase.zookeeper.useMulti to true in the configuration of the HMaster. IMPORTANT: hbase.zookeeper.useMulti should only be set to true if all ZooKeeper servers in the cluster are on version 3.4+ and will not be downgraded. ZooKeeper versions before 3.4 do not support multi-update and will not fail gracefully if multi-update is invoked (see ZOOKEEPER-1495). -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13562389#comment-13562389 ] Hudson commented on HBASE-6775: --- Integrated in HBase-TRUNK #3793 (See [https://builds.apache.org/job/HBase-TRUNK/3793/]) HBASE-7382 Port ZK.multi support from HBASE-6775 to 0.96 (Gregory, Himanshu and Ted) (Revision 1438317) Result = FAILURE tedyu : Files : * /hbase/trunk/hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java * /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/zookeeper/RecoverableZooKeeper.java * /hbase/trunk/hbase-server/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKUtil.java * /hbase/trunk/hbase-server/src/main/resources/hbase-default.xml * /hbase/trunk/hbase-server/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKMulti.java Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 Attachments: HBASE-6775-v2.patch This issue introduces the ability for the HMaster to make use of ZooKeeper's multi-update functionality. This allows certain ZooKeeper operations to complete more quickly and prevents some issues with rare ZooKeeper failure scenarios (see the release note of HBASE-6710 for an example). This feature is off by default; to enable set hbase.zookeeper.useMulti to true in the configuration of the HMaster. IMPORTANT: hbase.zookeeper.useMulti should only be set to true if all ZooKeeper servers in the cluster are on version 3.4+ and will not be downgraded. ZooKeeper versions before 3.4 do not support multi-update and will not fail gracefully if multi-update is invoked (see ZOOKEEPER-1495). -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13544450#comment-13544450 ] Hudson commented on HBASE-6775: --- Integrated in HBase-0.94-security-on-Hadoop-23 #10 (See [https://builds.apache.org/job/HBase-0.94-security-on-Hadoop-23/10/]) HBASE-6775 Use ZK.multi when available (Addendum: add test file) (Revision 1423635) HBASE-6775 Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix (Revision 1423616) Result = FAILURE gchanan : Files : * /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKMulti.java gchanan : Files : * /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/HConstants.java * /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/zookeeper/RecoverableZooKeeper.java * /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKTable.java * /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKUtil.java * /hbase/branches/0.94/src/main/resources/hbase-default.xml * /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKTable.java * /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKTableReadOnly.java Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 Attachments: HBASE-6775-v2.patch HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13537927#comment-13537927 ] Hudson commented on HBASE-6775: --- Integrated in HBase-0.94-security #87 (See [https://builds.apache.org/job/HBase-0.94-security/87/]) HBASE-6775 Use ZK.multi when available (Addendum: add test file) (Revision 1423635) HBASE-6775 Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix (Revision 1423616) Result = SUCCESS gchanan : Files : * /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKMulti.java gchanan : Files : * /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/HConstants.java * /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/zookeeper/RecoverableZooKeeper.java * /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKTable.java * /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKUtil.java * /hbase/branches/0.94/src/main/resources/hbase-default.xml * /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKTable.java * /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKTableReadOnly.java Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 Attachments: HBASE-6775-v2.patch HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13535308#comment-13535308 ] Ted Yu commented on HBASE-6775: --- Should release notes describe this feature ? Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 Attachments: HBASE-6775-v2.patch HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13535343#comment-13535343 ] Gregory Chanan commented on HBASE-6775: --- bq. Should release notes describe this feature ? Yes, I'll work on one. Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 Attachments: HBASE-6775-v2.patch HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13535383#comment-13535383 ] Hudson commented on HBASE-6775: --- Integrated in HBase-0.94 #640 (See [https://builds.apache.org/job/HBase-0.94/640/]) HBASE-6775 Use ZK.multi when available (Addendum: add test file) (Revision 1423635) HBASE-6775 Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix (Revision 1423616) Result = FAILURE gchanan : Files : * /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKMulti.java gchanan : Files : * /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/HConstants.java * /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/zookeeper/RecoverableZooKeeper.java * /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKTable.java * /hbase/branches/0.94/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKUtil.java * /hbase/branches/0.94/src/main/resources/hbase-default.xml * /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKTable.java * /hbase/branches/0.94/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKTableReadOnly.java Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 Attachments: HBASE-6775-v2.patch HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[
https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13534280#comment-13534280
]
Hadoop QA commented on HBASE-6775:
--
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12561348/HBASE-6775-v2.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 8 new
or modified tests.
{color:red}-1 patch{color}. The patch command could not apply the patch.
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/3574//console
This message is automatically generated.
Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
--
Key: HBASE-6775
URL: https://issues.apache.org/jira/browse/HBASE-6775
Project: HBase
Issue Type: Improvement
Components: Zookeeper
Affects Versions: 0.94.2
Reporter: Gregory Chanan
Assignee: Gregory Chanan
Priority: Minor
Fix For: 0.94.4
Attachments: HBASE-6775-v2.patch
HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in
different formats.
If a ZK failure occurs between the writing of the two znodes, strange
behavior can result.
This issue is a reminder to change these two ZK writes to use ZK.multi when
we require ZK 3.4+.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13534349#comment-13534349 ] Lars Hofhansl commented on HBASE-6775: -- My comment from 11/11 should read: we shouldn't sweat a patch. If we have a patch, we can certainly a good improvement for 0.94. Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 Attachments: HBASE-6775-v2.patch HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13534386#comment-13534386 ] Gregory Chanan commented on HBASE-6775: --- Alright, going to check in later today if no objections. Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 Attachments: HBASE-6775-v2.patch HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13495048#comment-13495048 ] Lars Hofhansl commented on HBASE-6775: -- I'd be OK with punting on this for 0.92 and 0.94. Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13491701#comment-13491701 ] Gregory Chanan commented on HBASE-6775: --- Review Board: https://issues.apache.org/jira/browse/HBASE-6775 Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13491702#comment-13491702 ] Gregory Chanan commented on HBASE-6775: --- Woops, wrong copy-paste: https://reviews.apache.org/r/7888/ Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13487378#comment-13487378 ] Gregory Chanan commented on HBASE-6775: --- I think config is the best option. It should only be temporary (gone in 0.96), so it's not making things any more cryptic long term. The basic problem is ZOOKEEPER-1495; you can't issue a command and figure out quickly whether the cluster supports multi or not. You can try to figure this out yourself, using srvr, but it's tricky. You need to check that every node on the cluster supports multi. Apparently just figuring out what servers are in the cluster is complicated (I was told jmx is the best way); the zk configuration in hbase-land is not sufficient because it may not list every node. It is not sufficient to just check for a quorum of servers that support it, because the servers that don't support it will be kicked (remove themselves?) from the quorum and you'll lose your fault tolerance. Even if you know every server in the cluster supports multi at some point in time, that may change by the time you actually issue your command. A new server may join or a server version may be downgraded by the time you actually send your command. So there's no good way to do this. Any objection to going with the Configuration parameter, Stack or others? (config parameter would be called hbase.zookeeper.useMulti). Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13487517#comment-13487517 ] stack commented on HBASE-6775: -- No objection on my part after the above explanation. Would suggest that you add the above text into the description of the new config. Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13485452#comment-13485452 ] Ted Yu commented on HBASE-6775: --- Finding the version of zookeeper ensemble doesn't have to be achieved by one command. If HBase cluster comes up normally but call to multi() times out (more than once), we can be certain that zookeeper ensemble doesn't support multi(). Giving user config parameter as suggested above is fine too. Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13485550#comment-13485550 ] stack commented on HBASE-6775: -- Config is a bad idea IMO. We have enough cryptic config. already. One thought I had was that you could connect to an ensemble member that supported multi but another member might not. If your session moves, I don't believe the client is told so you could do a multi against an older ensemble member. This might be a bit on the exotic side (different ensemble versions is probably temporary condition while ensemble is being updated) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13485294#comment-13485294 ] Gregory Chanan commented on HBASE-6775: --- I'm not sure we will require ZK 3.4+ in 0.94. Perhaps we could put this behind a Configuration parameter (hbase.zookeeper.serverSupportsMulti or hbase.zookeeper.useMulti), which would give the user the option of using multi if they know their cluster supports it. I also contemplated trying to figure this out programmaticaly (calling srvr via send4LetterWord on the zookeeper quorum), but I've been told this is a bad idea. Trying to get more information on that approach. Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13485344#comment-13485344 ] stack commented on HBASE-6775: -- Interested in why its a bad idea(TM). Good on you G. Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: Zookeeper Affects Versions: 0.94.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.94.4 HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (HBASE-6775) Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix
[ https://issues.apache.org/jira/browse/HBASE-6775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13455228#comment-13455228 ] Ted Yu commented on HBASE-6775: --- @Gregory: Should the Fix Version be 0.94.3 ? Thanks Use ZK.multi when available for HBASE-6710 0.92/0.94 compatibility fix -- Key: HBASE-6775 URL: https://issues.apache.org/jira/browse/HBASE-6775 Project: HBase Issue Type: Improvement Components: zookeeper Affects Versions: 0.92.2 Reporter: Gregory Chanan Assignee: Gregory Chanan Priority: Minor Fix For: 0.92.3 HBASE-6710 fixed a 0.92/0.94 compatibility issue by writing two znodes in different formats. If a ZK failure occurs between the writing of the two znodes, strange behavior can result. This issue is a reminder to change these two ZK writes to use ZK.multi when we require ZK 3.4+. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira
