[jira] [Commented] (HADOOP-9220) Unnecessary transition to standby in ActiveStandbyElector
[ https://issues.apache.org/jira/browse/HADOOP-9220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13658230#comment-13658230 ] Hudson commented on HADOOP-9220: Integrated in Hadoop-Yarn-trunk #210 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/210/]) HADOOP-9220. Unnecessary transition to standby in ActiveStandbyElector. Contributed by Tom White and Todd Lipcon. (Revision 1482401) Result = SUCCESS todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVNview=revrev=1482401 Files : * /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt * /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ha/ActiveStandbyElector.java * /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ha/DummyHAService.java * /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ha/TestZKFailoverController.java Unnecessary transition to standby in ActiveStandbyElector - Key: HADOOP-9220 URL: https://issues.apache.org/jira/browse/HADOOP-9220 Project: Hadoop Common Issue Type: Bug Components: ha Reporter: Tom White Assignee: Tom White Priority: Critical Fix For: 3.0.0, 2.0.5-beta Attachments: HADOOP-9220.patch, HADOOP-9220.patch, hadoop-9220.txt When performing a manual failover from one HA node to a second, under some circumstances the second node will transition from standby - active - standby - active. This is with automatic failover enabled, so there is a ZK cluster doing leader election. -- 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] (HADOOP-9220) Unnecessary transition to standby in ActiveStandbyElector
[ https://issues.apache.org/jira/browse/HADOOP-9220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13658339#comment-13658339 ] Hudson commented on HADOOP-9220: Integrated in Hadoop-Hdfs-trunk #1399 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/1399/]) HADOOP-9220. Unnecessary transition to standby in ActiveStandbyElector. Contributed by Tom White and Todd Lipcon. (Revision 1482401) Result = FAILURE todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVNview=revrev=1482401 Files : * /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt * /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ha/ActiveStandbyElector.java * /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ha/DummyHAService.java * /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ha/TestZKFailoverController.java Unnecessary transition to standby in ActiveStandbyElector - Key: HADOOP-9220 URL: https://issues.apache.org/jira/browse/HADOOP-9220 Project: Hadoop Common Issue Type: Bug Components: ha Reporter: Tom White Assignee: Tom White Priority: Critical Fix For: 3.0.0, 2.0.5-beta Attachments: HADOOP-9220.patch, HADOOP-9220.patch, hadoop-9220.txt When performing a manual failover from one HA node to a second, under some circumstances the second node will transition from standby - active - standby - active. This is with automatic failover enabled, so there is a ZK cluster doing leader election. -- 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] (HADOOP-9220) Unnecessary transition to standby in ActiveStandbyElector
[ https://issues.apache.org/jira/browse/HADOOP-9220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13658375#comment-13658375 ] Hudson commented on HADOOP-9220: Integrated in Hadoop-Mapreduce-trunk #1426 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1426/]) HADOOP-9220. Unnecessary transition to standby in ActiveStandbyElector. Contributed by Tom White and Todd Lipcon. (Revision 1482401) Result = SUCCESS todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVNview=revrev=1482401 Files : * /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt * /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ha/ActiveStandbyElector.java * /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ha/DummyHAService.java * /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ha/TestZKFailoverController.java Unnecessary transition to standby in ActiveStandbyElector - Key: HADOOP-9220 URL: https://issues.apache.org/jira/browse/HADOOP-9220 Project: Hadoop Common Issue Type: Bug Components: ha Reporter: Tom White Assignee: Tom White Priority: Critical Fix For: 3.0.0, 2.0.5-beta Attachments: HADOOP-9220.patch, HADOOP-9220.patch, hadoop-9220.txt When performing a manual failover from one HA node to a second, under some circumstances the second node will transition from standby - active - standby - active. This is with automatic failover enabled, so there is a ZK cluster doing leader election. -- 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] (HADOOP-9220) Unnecessary transition to standby in ActiveStandbyElector
[
https://issues.apache.org/jira/browse/HADOOP-9220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13656937#comment-13656937
]
Tom White commented on HADOOP-9220:
---
+1 for Todd's patch. I tested it manually and the original problem no longer
occurs with the patch.
Nit: did you mean to introduce {{new Exception}} in the debug line?
Unnecessary transition to standby in ActiveStandbyElector
-
Key: HADOOP-9220
URL: https://issues.apache.org/jira/browse/HADOOP-9220
Project: Hadoop Common
Issue Type: Bug
Components: ha
Reporter: Tom White
Assignee: Tom White
Priority: Critical
Attachments: HADOOP-9220.patch, HADOOP-9220.patch, hadoop-9220.txt
When performing a manual failover from one HA node to a second, under some
circumstances the second node will transition from standby - active -
standby - active. This is with automatic failover enabled, so there is a ZK
cluster doing leader election.
--
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] (HADOOP-9220) Unnecessary transition to standby in ActiveStandbyElector
[ https://issues.apache.org/jira/browse/HADOOP-9220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13657135#comment-13657135 ] Todd Lipcon commented on HADOOP-9220: - Woops, nope, I'll take out that 'new Exception' on commit. I was just using it to help debug. Good catch. Unnecessary transition to standby in ActiveStandbyElector - Key: HADOOP-9220 URL: https://issues.apache.org/jira/browse/HADOOP-9220 Project: Hadoop Common Issue Type: Bug Components: ha Reporter: Tom White Assignee: Tom White Priority: Critical Attachments: HADOOP-9220.patch, HADOOP-9220.patch, hadoop-9220.txt When performing a manual failover from one HA node to a second, under some circumstances the second node will transition from standby - active - standby - active. This is with automatic failover enabled, so there is a ZK cluster doing leader election. -- 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] (HADOOP-9220) Unnecessary transition to standby in ActiveStandbyElector
[ https://issues.apache.org/jira/browse/HADOOP-9220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13657144#comment-13657144 ] Hudson commented on HADOOP-9220: Integrated in Hadoop-trunk-Commit #3750 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/3750/]) HADOOP-9220. Unnecessary transition to standby in ActiveStandbyElector. Contributed by Tom White and Todd Lipcon. (Revision 1482401) Result = SUCCESS todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVNview=revrev=1482401 Files : * /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt * /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/ha/ActiveStandbyElector.java * /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ha/DummyHAService.java * /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ha/TestZKFailoverController.java Unnecessary transition to standby in ActiveStandbyElector - Key: HADOOP-9220 URL: https://issues.apache.org/jira/browse/HADOOP-9220 Project: Hadoop Common Issue Type: Bug Components: ha Reporter: Tom White Assignee: Tom White Priority: Critical Fix For: 3.0.0, 2.0.5-beta Attachments: HADOOP-9220.patch, HADOOP-9220.patch, hadoop-9220.txt When performing a manual failover from one HA node to a second, under some circumstances the second node will transition from standby - active - standby - active. This is with automatic failover enabled, so there is a ZK cluster doing leader election. -- 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] (HADOOP-9220) Unnecessary transition to standby in ActiveStandbyElector
[
https://issues.apache.org/jira/browse/HADOOP-9220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13656368#comment-13656368
]
Hadoop QA commented on HADOOP-9220:
---
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12582980/hadoop-9220.txt
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 2 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-common-project/hadoop-common.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/2539//testReport/
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/2539//console
This message is automatically generated.
Unnecessary transition to standby in ActiveStandbyElector
-
Key: HADOOP-9220
URL: https://issues.apache.org/jira/browse/HADOOP-9220
Project: Hadoop Common
Issue Type: Bug
Components: ha
Reporter: Tom White
Assignee: Tom White
Priority: Critical
Attachments: HADOOP-9220.patch, HADOOP-9220.patch, hadoop-9220.txt
When performing a manual failover from one HA node to a second, under some
circumstances the second node will transition from standby - active -
standby - active. This is with automatic failover enabled, so there is a ZK
cluster doing leader election.
--
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] (HADOOP-9220) Unnecessary transition to standby in ActiveStandbyElector
[ https://issues.apache.org/jira/browse/HADOOP-9220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13559081#comment-13559081 ] Bikas Saha commented on HADOOP-9220: Not quite sure I understand. Todd had added a reference to the ZK client so that the Elector would only accept watch notifications from the last ZK client. That means only 1 ZK client would be driving the Elector. Unnecessary transition to standby in ActiveStandbyElector - Key: HADOOP-9220 URL: https://issues.apache.org/jira/browse/HADOOP-9220 Project: Hadoop Common Issue Type: Bug Components: ha Reporter: Tom White Assignee: Tom White Attachments: HADOOP-9220.patch, HADOOP-9220.patch When performing a manual failover from one HA node to a second, under some circumstances the second node will transition from standby - active - standby - active. This is with automatic failover enabled, so there is a ZK cluster doing leader election. -- 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] (HADOOP-9220) Unnecessary transition to standby in ActiveStandbyElector
[ https://issues.apache.org/jira/browse/HADOOP-9220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13559135#comment-13559135 ] Tom White commented on HADOOP-9220: --- It's true that the elector checks for a stale ZK client, but that doesn't prevent the problem here which is caused by i) having multiple watchers for the ZK client (due to the creation of a new watcher in monitorLockNodeAsync), and ii) a postponed call to recheckElectability unnecessarily forcing a new election (this call doesn't go through the watcher). Unnecessary transition to standby in ActiveStandbyElector - Key: HADOOP-9220 URL: https://issues.apache.org/jira/browse/HADOOP-9220 Project: Hadoop Common Issue Type: Bug Components: ha Reporter: Tom White Assignee: Tom White Attachments: HADOOP-9220.patch, HADOOP-9220.patch When performing a manual failover from one HA node to a second, under some circumstances the second node will transition from standby - active - standby - active. This is with automatic failover enabled, so there is a ZK cluster doing leader election. -- 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] (HADOOP-9220) Unnecessary transition to standby in ActiveStandbyElector
[
https://issues.apache.org/jira/browse/HADOOP-9220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13557404#comment-13557404
]
Hadoop QA commented on HADOOP-9220:
---
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12565504/HADOOP-9220.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 2 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-common-project/hadoop-common.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/2071//testReport/
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/2071//console
This message is automatically generated.
Unnecessary transition to standby in ActiveStandbyElector
-
Key: HADOOP-9220
URL: https://issues.apache.org/jira/browse/HADOOP-9220
Project: Hadoop Common
Issue Type: Bug
Components: ha
Reporter: Tom White
Assignee: Tom White
Attachments: HADOOP-9220.patch, HADOOP-9220.patch
When performing a manual failover from one HA node to a second, under some
circumstances the second node will transition from standby - active -
standby - active. This is with automatic failover enabled, so there is a ZK
cluster doing leader election.
--
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
