[jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12885510#action_12885510 ] Hudson commented on ZOOKEEPER-744: -- Integrated in ZooKeeper-trunk #869 (See [http://hudson.zones.apache.org/hudson/job/ZooKeeper-trunk/869/]) ZOOKEEPER-744. Add monitoring four-letter word Add monitoring four-letter word --- Key: ZOOKEEPER-744 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-744 Project: Zookeeper Issue Type: New Feature Components: server Affects Versions: 3.4.0 Reporter: Travis Crawford Assignee: Andrei Savu Fix For: 3.4.0 Attachments: zk-ganglia.png, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch Filing a feature request based on a zookeeper-user discussion. Zookeeper should have a new four-letter word that returns key-value pairs appropriate for importing to a monitoring system (such as Ganglia which has a large installed base) This command should initially export the following: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. But be designed such that in the future additional data can be added. For example, the output could define the statistic in a comment, then print a key space character value line: # Total number of instances in the ensemble zk_ensemble_instances_total 5 # Number of instances currently participating in the quorum. zk_ensemble_instances_active 4 From the mailing list: Date: Mon, 19 Apr 2010 12:10:44 -0700 From: Patrick Hunt ph...@apache.org To: zookeeper-u...@hadoop.apache.org Subject: Re: Recovery issue - how to debug? On 04/19/2010 11:55 AM, Travis Crawford wrote: It would be a lot easier from the operations perspective if the leader explicitly published some health stats: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. This would greatly simplify monitoring alerting - when an instance falls behind one could configure their monitoring system to let someone know and take a look at the logs. That's a great idea. Please enter a JIRA for this - a new 4 letter word and JMX support. It would also be a great starter project for someone interested in becoming more familiar with the server code. Patrick -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12885296#action_12885296 ] Andrei Savu commented on ZOOKEEPER-744: --- Thanks for reviewing. Add monitoring four-letter word --- Key: ZOOKEEPER-744 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-744 Project: Zookeeper Issue Type: New Feature Components: server Affects Versions: 3.4.0 Reporter: Travis Crawford Assignee: Andrei Savu Fix For: 3.4.0 Attachments: zk-ganglia.png, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch Filing a feature request based on a zookeeper-user discussion. Zookeeper should have a new four-letter word that returns key-value pairs appropriate for importing to a monitoring system (such as Ganglia which has a large installed base) This command should initially export the following: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. But be designed such that in the future additional data can be added. For example, the output could define the statistic in a comment, then print a key space character value line: # Total number of instances in the ensemble zk_ensemble_instances_total 5 # Number of instances currently participating in the quorum. zk_ensemble_instances_active 4 From the mailing list: Date: Mon, 19 Apr 2010 12:10:44 -0700 From: Patrick Hunt ph...@apache.org To: zookeeper-u...@hadoop.apache.org Subject: Re: Recovery issue - how to debug? On 04/19/2010 11:55 AM, Travis Crawford wrote: It would be a lot easier from the operations perspective if the leader explicitly published some health stats: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. This would greatly simplify monitoring alerting - when an instance falls behind one could configure their monitoring system to let someone know and take a look at the logs. That's a great idea. Please enter a JIRA for this - a new 4 letter word and JMX support. It would also be a great starter project for someone interested in becoming more familiar with the server code. Patrick -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12882736#action_12882736 ] Hadoop QA commented on ZOOKEEPER-744: - -1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12448091/ZOOKEEPER-744.patch against trunk revision 958096. +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 12 new or modified tests. +1 javadoc. The javadoc tool did not generate any warning messages. +1 javac. The applied patch does not increase the total number of javac compiler warnings. +1 findbugs. The patch does not introduce any new Findbugs warnings. +1 release audit. The applied patch does not increase the total number of release audit warnings. -1 core tests. The patch failed core unit tests. +1 contrib tests. The patch passed contrib unit tests. Test results: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/121/testReport/ Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/121/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Console output: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/121/console This message is automatically generated. Add monitoring four-letter word --- Key: ZOOKEEPER-744 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-744 Project: Zookeeper Issue Type: New Feature Components: server Affects Versions: 3.4.0 Reporter: Travis Crawford Assignee: Andrei Savu Fix For: 3.4.0 Attachments: zk-ganglia.png, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch Filing a feature request based on a zookeeper-user discussion. Zookeeper should have a new four-letter word that returns key-value pairs appropriate for importing to a monitoring system (such as Ganglia which has a large installed base) This command should initially export the following: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. But be designed such that in the future additional data can be added. For example, the output could define the statistic in a comment, then print a key space character value line: # Total number of instances in the ensemble zk_ensemble_instances_total 5 # Number of instances currently participating in the quorum. zk_ensemble_instances_active 4 From the mailing list: Date: Mon, 19 Apr 2010 12:10:44 -0700 From: Patrick Hunt ph...@apache.org To: zookeeper-u...@hadoop.apache.org Subject: Re: Recovery issue - how to debug? On 04/19/2010 11:55 AM, Travis Crawford wrote: It would be a lot easier from the operations perspective if the leader explicitly published some health stats: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. This would greatly simplify monitoring alerting - when an instance falls behind one could configure their monitoring system to let someone know and take a look at the logs. That's a great idea. Please enter a JIRA for this - a new 4 letter word and JMX support. It would also be a great starter project for someone interested in becoming more familiar with the server code. Patrick -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12882759#action_12882759 ] Hadoop QA commented on ZOOKEEPER-744: - +1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12448091/ZOOKEEPER-744.patch against trunk revision 958096. +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 12 new or modified tests. +1 javadoc. The javadoc tool did not generate any warning messages. +1 javac. The applied patch does not increase the total number of javac compiler warnings. +1 findbugs. The patch does not introduce any new Findbugs warnings. +1 release audit. The applied patch does not increase the total number of release audit warnings. +1 core tests. The patch passed core unit tests. +1 contrib tests. The patch passed contrib unit tests. Test results: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/122/testReport/ Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/122/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Console output: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/122/console This message is automatically generated. Add monitoring four-letter word --- Key: ZOOKEEPER-744 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-744 Project: Zookeeper Issue Type: New Feature Components: server Affects Versions: 3.4.0 Reporter: Travis Crawford Assignee: Andrei Savu Fix For: 3.4.0 Attachments: zk-ganglia.png, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch Filing a feature request based on a zookeeper-user discussion. Zookeeper should have a new four-letter word that returns key-value pairs appropriate for importing to a monitoring system (such as Ganglia which has a large installed base) This command should initially export the following: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. But be designed such that in the future additional data can be added. For example, the output could define the statistic in a comment, then print a key space character value line: # Total number of instances in the ensemble zk_ensemble_instances_total 5 # Number of instances currently participating in the quorum. zk_ensemble_instances_active 4 From the mailing list: Date: Mon, 19 Apr 2010 12:10:44 -0700 From: Patrick Hunt ph...@apache.org To: zookeeper-u...@hadoop.apache.org Subject: Re: Recovery issue - how to debug? On 04/19/2010 11:55 AM, Travis Crawford wrote: It would be a lot easier from the operations perspective if the leader explicitly published some health stats: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. This would greatly simplify monitoring alerting - when an instance falls behind one could configure their monitoring system to let someone know and take a look at the logs. That's a great idea. Please enter a JIRA for this - a new 4 letter word and JMX support. It would also be a great starter project for someone interested in becoming more familiar with the server code. Patrick -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12878793#action_12878793 ] Hadoop QA commented on ZOOKEEPER-744: - +1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12447082/ZOOKEEPER-744.patch against trunk revision 953041. +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 16 new or modified tests. +1 javadoc. The javadoc tool did not generate any warning messages. +1 javac. The applied patch does not increase the total number of javac compiler warnings. +1 findbugs. The patch does not introduce any new Findbugs warnings. +1 release audit. The applied patch does not increase the total number of release audit warnings. +1 core tests. The patch passed core unit tests. +1 contrib tests. The patch passed contrib unit tests. Test results: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/116/testReport/ Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/116/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Console output: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/116/console This message is automatically generated. Add monitoring four-letter word --- Key: ZOOKEEPER-744 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-744 Project: Zookeeper Issue Type: New Feature Components: server Affects Versions: 3.4.0 Reporter: Travis Crawford Assignee: Savu Andrei Fix For: 3.4.0 Attachments: zk-ganglia.png, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch Filing a feature request based on a zookeeper-user discussion. Zookeeper should have a new four-letter word that returns key-value pairs appropriate for importing to a monitoring system (such as Ganglia which has a large installed base) This command should initially export the following: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. But be designed such that in the future additional data can be added. For example, the output could define the statistic in a comment, then print a key space character value line: # Total number of instances in the ensemble zk_ensemble_instances_total 5 # Number of instances currently participating in the quorum. zk_ensemble_instances_active 4 From the mailing list: Date: Mon, 19 Apr 2010 12:10:44 -0700 From: Patrick Hunt ph...@apache.org To: zookeeper-u...@hadoop.apache.org Subject: Re: Recovery issue - how to debug? On 04/19/2010 11:55 AM, Travis Crawford wrote: It would be a lot easier from the operations perspective if the leader explicitly published some health stats: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. This would greatly simplify monitoring alerting - when an instance falls behind one could configure their monitoring system to let someone know and take a look at the logs. That's a great idea. Please enter a JIRA for this - a new 4 letter word and JMX support. It would also be a great starter project for someone interested in becoming more familiar with the server code. Patrick -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12876091#action_12876091 ] Savu Andrei commented on ZOOKEEPER-744: --- @Patrick I have fixed 1-5. I will resubmit the patch after writing some tests to ensure that the node watch count works as expected (I'm having some problems with this part). Right now all tests are passing. 6. I believe the leader does not record the time of the last election. I will look more into this and change the code as needed. Should I also add JVM memory stats? Add monitoring four-letter word --- Key: ZOOKEEPER-744 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-744 Project: Zookeeper Issue Type: New Feature Components: server Affects Versions: 3.4.0 Reporter: Travis Crawford Assignee: Savu Andrei Fix For: 3.4.0 Attachments: zk-ganglia.png, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch Filing a feature request based on a zookeeper-user discussion. Zookeeper should have a new four-letter word that returns key-value pairs appropriate for importing to a monitoring system (such as Ganglia which has a large installed base) This command should initially export the following: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. But be designed such that in the future additional data can be added. For example, the output could define the statistic in a comment, then print a key space character value line: # Total number of instances in the ensemble zk_ensemble_instances_total 5 # Number of instances currently participating in the quorum. zk_ensemble_instances_active 4 From the mailing list: Date: Mon, 19 Apr 2010 12:10:44 -0700 From: Patrick Hunt ph...@apache.org To: zookeeper-u...@hadoop.apache.org Subject: Re: Recovery issue - how to debug? On 04/19/2010 11:55 AM, Travis Crawford wrote: It would be a lot easier from the operations perspective if the leader explicitly published some health stats: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. This would greatly simplify monitoring alerting - when an instance falls behind one could configure their monitoring system to let someone know and take a look at the logs. That's a great idea. Please enter a JIRA for this - a new 4 letter word and JMX support. It would also be a great starter project for someone interested in becoming more familiar with the server code. Patrick -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12875021#action_12875021 ] Savu Andrei commented on ZOOKEEPER-744: --- Thanks for reviewing. I will resubmit the patch today. -- Savu Andrei Website: http://www.andreisavu.ro/ Add monitoring four-letter word --- Key: ZOOKEEPER-744 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-744 Project: Zookeeper Issue Type: New Feature Components: server Affects Versions: 3.4.0 Reporter: Travis Crawford Assignee: Savu Andrei Fix For: 3.4.0 Attachments: zk-ganglia.png, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch Filing a feature request based on a zookeeper-user discussion. Zookeeper should have a new four-letter word that returns key-value pairs appropriate for importing to a monitoring system (such as Ganglia which has a large installed base) This command should initially export the following: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. But be designed such that in the future additional data can be added. For example, the output could define the statistic in a comment, then print a key space character value line: # Total number of instances in the ensemble zk_ensemble_instances_total 5 # Number of instances currently participating in the quorum. zk_ensemble_instances_active 4 From the mailing list: Date: Mon, 19 Apr 2010 12:10:44 -0700 From: Patrick Hunt ph...@apache.org To: zookeeper-u...@hadoop.apache.org Subject: Re: Recovery issue - how to debug? On 04/19/2010 11:55 AM, Travis Crawford wrote: It would be a lot easier from the operations perspective if the leader explicitly published some health stats: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. This would greatly simplify monitoring alerting - when an instance falls behind one could configure their monitoring system to let someone know and take a look at the logs. That's a great idea. Please enter a JIRA for this - a new 4 letter word and JMX support. It would also be a great starter project for someone interested in becoming more familiar with the server code. Patrick -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12874111#action_12874111 ] Patrick Hunt commented on ZOOKEEPER-744: Andrei, are you are still working on this or should I review for commit? Add monitoring four-letter word --- Key: ZOOKEEPER-744 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-744 Project: Zookeeper Issue Type: New Feature Components: server Affects Versions: 3.4.0 Reporter: Travis Crawford Assignee: Savu Andrei Fix For: 3.4.0 Attachments: zk-ganglia.png, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch Filing a feature request based on a zookeeper-user discussion. Zookeeper should have a new four-letter word that returns key-value pairs appropriate for importing to a monitoring system (such as Ganglia which has a large installed base) This command should initially export the following: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. But be designed such that in the future additional data can be added. For example, the output could define the statistic in a comment, then print a key space character value line: # Total number of instances in the ensemble zk_ensemble_instances_total 5 # Number of instances currently participating in the quorum. zk_ensemble_instances_active 4 From the mailing list: Date: Mon, 19 Apr 2010 12:10:44 -0700 From: Patrick Hunt ph...@apache.org To: zookeeper-u...@hadoop.apache.org Subject: Re: Recovery issue - how to debug? On 04/19/2010 11:55 AM, Travis Crawford wrote: It would be a lot easier from the operations perspective if the leader explicitly published some health stats: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. This would greatly simplify monitoring alerting - when an instance falls behind one could configure their monitoring system to let someone know and take a look at the logs. That's a great idea. Please enter a JIRA for this - a new 4 letter word and JMX support. It would also be a great starter project for someone interested in becoming more familiar with the server code. Patrick -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12874148#action_12874148 ] Savu Andrei commented on ZOOKEEPER-744: --- You can review the patch for commit. Right know I'm writing monitoring scripts for Nagios, Cacti and Ganglia (in this order). The script for nagios is almost ready. Thanks. -original message- Subject: [jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word From: Patrick Hunt (JIRA) j...@apache.org Date: 01/06/2010 19:07 [ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12874111#action_12874111 ] Patrick Hunt commented on ZOOKEEPER-744: Andrei, are you are still working on this or should I review for commit? -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online. Add monitoring four-letter word --- Key: ZOOKEEPER-744 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-744 Project: Zookeeper Issue Type: New Feature Components: server Affects Versions: 3.4.0 Reporter: Travis Crawford Assignee: Savu Andrei Fix For: 3.4.0 Attachments: zk-ganglia.png, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch Filing a feature request based on a zookeeper-user discussion. Zookeeper should have a new four-letter word that returns key-value pairs appropriate for importing to a monitoring system (such as Ganglia which has a large installed base) This command should initially export the following: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. But be designed such that in the future additional data can be added. For example, the output could define the statistic in a comment, then print a key space character value line: # Total number of instances in the ensemble zk_ensemble_instances_total 5 # Number of instances currently participating in the quorum. zk_ensemble_instances_active 4 From the mailing list: Date: Mon, 19 Apr 2010 12:10:44 -0700 From: Patrick Hunt ph...@apache.org To: zookeeper-u...@hadoop.apache.org Subject: Re: Recovery issue - how to debug? On 04/19/2010 11:55 AM, Travis Crawford wrote: It would be a lot easier from the operations perspective if the leader explicitly published some health stats: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. This would greatly simplify monitoring alerting - when an instance falls behind one could configure their monitoring system to let someone know and take a look at the logs. That's a great idea. Please enter a JIRA for this - a new 4 letter word and JMX support. It would also be a great starter project for someone interested in becoming more familiar with the server code. Patrick -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12874198#action_12874198 ] Hadoop QA commented on ZOOKEEPER-744: - +1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12445822/ZOOKEEPER-744.patch against trunk revision 947063. +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 8 new or modified tests. +1 javadoc. The javadoc tool did not generate any warning messages. +1 javac. The applied patch does not increase the total number of javac compiler warnings. +1 findbugs. The patch does not introduce any new Findbugs warnings. +1 release audit. The applied patch does not increase the total number of release audit warnings. +1 core tests. The patch passed core unit tests. +1 contrib tests. The patch passed contrib unit tests. Test results: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/112/testReport/ Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/112/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Console output: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/112/console This message is automatically generated. Add monitoring four-letter word --- Key: ZOOKEEPER-744 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-744 Project: Zookeeper Issue Type: New Feature Components: server Affects Versions: 3.4.0 Reporter: Travis Crawford Assignee: Savu Andrei Fix For: 3.4.0 Attachments: zk-ganglia.png, ZOOKEEPER-744.patch, ZOOKEEPER-744.patch Filing a feature request based on a zookeeper-user discussion. Zookeeper should have a new four-letter word that returns key-value pairs appropriate for importing to a monitoring system (such as Ganglia which has a large installed base) This command should initially export the following: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. But be designed such that in the future additional data can be added. For example, the output could define the statistic in a comment, then print a key space character value line: # Total number of instances in the ensemble zk_ensemble_instances_total 5 # Number of instances currently participating in the quorum. zk_ensemble_instances_active 4 From the mailing list: Date: Mon, 19 Apr 2010 12:10:44 -0700 From: Patrick Hunt ph...@apache.org To: zookeeper-u...@hadoop.apache.org Subject: Re: Recovery issue - how to debug? On 04/19/2010 11:55 AM, Travis Crawford wrote: It would be a lot easier from the operations perspective if the leader explicitly published some health stats: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. This would greatly simplify monitoring alerting - when an instance falls behind one could configure their monitoring system to let someone know and take a look at the logs. That's a great idea. Please enter a JIRA for this - a new 4 letter word and JMX support. It would also be a great starter project for someone interested in becoming more familiar with the server code. Patrick -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12872176#action_12872176 ] Hadoop QA commented on ZOOKEEPER-744: - +1 overall. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12445586/ZOOKEEPER-744.patch against trunk revision 947063. +1 @author. The patch does not contain any @author tags. +1 tests included. The patch appears to include 8 new or modified tests. +1 javadoc. The javadoc tool did not generate any warning messages. +1 javac. The applied patch does not increase the total number of javac compiler warnings. +1 findbugs. The patch does not introduce any new Findbugs warnings. +1 release audit. The applied patch does not increase the total number of release audit warnings. +1 core tests. The patch passed core unit tests. +1 contrib tests. The patch passed contrib unit tests. Test results: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/109/testReport/ Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/109/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html Console output: http://hudson.zones.apache.org/hudson/job/Zookeeper-Patch-h1.grid.sp2.yahoo.net/109/console This message is automatically generated. Add monitoring four-letter word --- Key: ZOOKEEPER-744 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-744 Project: Zookeeper Issue Type: New Feature Components: server Affects Versions: 3.4.0 Reporter: Travis Crawford Assignee: Savu Andrei Attachments: zk-ganglia.png, ZOOKEEPER-744.patch Filing a feature request based on a zookeeper-user discussion. Zookeeper should have a new four-letter word that returns key-value pairs appropriate for importing to a monitoring system (such as Ganglia which has a large installed base) This command should initially export the following: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. But be designed such that in the future additional data can be added. For example, the output could define the statistic in a comment, then print a key space character value line: # Total number of instances in the ensemble zk_ensemble_instances_total 5 # Number of instances currently participating in the quorum. zk_ensemble_instances_active 4 From the mailing list: Date: Mon, 19 Apr 2010 12:10:44 -0700 From: Patrick Hunt ph...@apache.org To: zookeeper-u...@hadoop.apache.org Subject: Re: Recovery issue - how to debug? On 04/19/2010 11:55 AM, Travis Crawford wrote: It would be a lot easier from the operations perspective if the leader explicitly published some health stats: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. This would greatly simplify monitoring alerting - when an instance falls behind one could configure their monitoring system to let someone know and take a look at the logs. That's a great idea. Please enter a JIRA for this - a new 4 letter word and JMX support. It would also be a great starter project for someone interested in becoming more familiar with the server code. Patrick -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12872284#action_12872284 ] Travis Crawford commented on ZOOKEEPER-744: --- @savu - Sometimes the right thing is publishing everything, sometimes not. In this case I'll have some filtering/formatting in the zk2ganglia script. Add monitoring four-letter word --- Key: ZOOKEEPER-744 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-744 Project: Zookeeper Issue Type: New Feature Components: server Affects Versions: 3.4.0 Reporter: Travis Crawford Assignee: Savu Andrei Attachments: zk-ganglia.png, ZOOKEEPER-744.patch Filing a feature request based on a zookeeper-user discussion. Zookeeper should have a new four-letter word that returns key-value pairs appropriate for importing to a monitoring system (such as Ganglia which has a large installed base) This command should initially export the following: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. But be designed such that in the future additional data can be added. For example, the output could define the statistic in a comment, then print a key space character value line: # Total number of instances in the ensemble zk_ensemble_instances_total 5 # Number of instances currently participating in the quorum. zk_ensemble_instances_active 4 From the mailing list: Date: Mon, 19 Apr 2010 12:10:44 -0700 From: Patrick Hunt ph...@apache.org To: zookeeper-u...@hadoop.apache.org Subject: Re: Recovery issue - how to debug? On 04/19/2010 11:55 AM, Travis Crawford wrote: It would be a lot easier from the operations perspective if the leader explicitly published some health stats: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. This would greatly simplify monitoring alerting - when an instance falls behind one could configure their monitoring system to let someone know and take a look at the logs. That's a great idea. Please enter a JIRA for this - a new 4 letter word and JMX support. It would also be a great starter project for someone interested in becoming more familiar with the server code. Patrick -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12871479#action_12871479 ] Travis Crawford commented on ZOOKEEPER-744: --- Looks awesome! One nit -- many monitoring systems do not interpret strings so it may be appropriate to export everything as numbers. For example, consider a script that loops through these values poking them into Ganglia (or other timeseries database). The script would need special-cased to handle leader. Later, as more values are added the import script would need updated with the new strings. Doing everything as numbers ensures new values would just work without updating other systems. With that in mind, perhaps: zk_server_state 1 (instead of: leader) zk_build_timestamp unix_timestamp (instead of build string) Add monitoring four-letter word --- Key: ZOOKEEPER-744 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-744 Project: Zookeeper Issue Type: New Feature Components: server Reporter: Travis Crawford Attachments: zk-ganglia.png, ZOOKEEPER-744.patch Filing a feature request based on a zookeeper-user discussion. Zookeeper should have a new four-letter word that returns key-value pairs appropriate for importing to a monitoring system (such as Ganglia which has a large installed base) This command should initially export the following: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. But be designed such that in the future additional data can be added. For example, the output could define the statistic in a comment, then print a key space character value line: # Total number of instances in the ensemble zk_ensemble_instances_total 5 # Number of instances currently participating in the quorum. zk_ensemble_instances_active 4 From the mailing list: Date: Mon, 19 Apr 2010 12:10:44 -0700 From: Patrick Hunt ph...@apache.org To: zookeeper-u...@hadoop.apache.org Subject: Re: Recovery issue - how to debug? On 04/19/2010 11:55 AM, Travis Crawford wrote: It would be a lot easier from the operations perspective if the leader explicitly published some health stats: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. This would greatly simplify monitoring alerting - when an instance falls behind one could configure their monitoring system to let someone know and take a look at the logs. That's a great idea. Please enter a JIRA for this - a new 4 letter word and JMX support. It would also be a great starter project for someone interested in becoming more familiar with the server code. Patrick -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Commented: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12870707#action_12870707 ] Patrick Hunt commented on ZOOKEEPER-744: Looks good so far. You should update the forrest docs as part of this change, you should detail the format at least (and expectation that order is not maintained, etc...), that this is compatible with java properties format, the content may change (keys added) over time, etc... That way a user will better understand how to integrate and have a reasonable expectation of b/w compatibliity, implementers will also have insight into how they can change this command over time. We didn't do a good job with this for the other commands, but since this is new and intended for integration into third party tools (vs a human always looking at the results) it's a good idea to add. You should add this command to the Tests as well. Add monitoring four-letter word --- Key: ZOOKEEPER-744 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-744 Project: Zookeeper Issue Type: New Feature Components: server Reporter: Travis Crawford Attachments: zk-ganglia.png, ZOOKEEPER-744.patch Filing a feature request based on a zookeeper-user discussion. Zookeeper should have a new four-letter word that returns key-value pairs appropriate for importing to a monitoring system (such as Ganglia which has a large installed base) This command should initially export the following: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. But be designed such that in the future additional data can be added. For example, the output could define the statistic in a comment, then print a key space character value line: # Total number of instances in the ensemble zk_ensemble_instances_total 5 # Number of instances currently participating in the quorum. zk_ensemble_instances_active 4 From the mailing list: Date: Mon, 19 Apr 2010 12:10:44 -0700 From: Patrick Hunt ph...@apache.org To: zookeeper-u...@hadoop.apache.org Subject: Re: Recovery issue - how to debug? On 04/19/2010 11:55 AM, Travis Crawford wrote: It would be a lot easier from the operations perspective if the leader explicitly published some health stats: (a) Count of instances in the ensemble. (b) Count of up-to-date instances in the ensemble. This would greatly simplify monitoring alerting - when an instance falls behind one could configure their monitoring system to let someone know and take a look at the logs. That's a great idea. Please enter a JIRA for this - a new 4 letter word and JMX support. It would also be a great starter project for someone interested in becoming more familiar with the server code. Patrick -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
