[jira] Updated: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Savu Andrei updated ZOOKEEPER-744: -- Attachment: ZOOKEEPER-744.patch I've updated the patch and added a new the test for getWatchCount(). I'm not yet recording the time of the last election, I'm thinking about open a JIRA later for this. I want to move on and work on ZOOKEEPER-613. 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] Updated: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Savu Andrei updated ZOOKEEPER-744: -- Status: Patch Available (was: Open) 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-119) Reserve .zookeeper node for server use.
[ https://issues.apache.org/jira/browse/ZOOKEEPER-119?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12878802#action_12878802 ] Savu Andrei commented on ZOOKEEPER-119: --- I believe this JIRA should be closed because ZOOKEEPER-231 already adds zookeeper as a reserved node name when creating the hierarchy for quotas. Reserve .zookeeper node for server use. - Key: ZOOKEEPER-119 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-119 Project: Zookeeper Issue Type: New Feature Components: server Reporter: Patrick Hunt Attachments: ZOOKEEPER-119.patch The server should not allow clients to create .zookeeper nodes in the node hierarchy. These nodes should be reserved for zk future use, some ideas: * /.zookeeper/proc * /.zookeeper/stats * /.zookeeper/... * /.../.zookeeper/... (disallow both at root as well as child nodes) -- 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=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] Updated: (ZOOKEEPER-780) zkCli.sh generates a ArrayIndexOutOfBoundsException
[ https://issues.apache.org/jira/browse/ZOOKEEPER-780?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Savu Andrei updated ZOOKEEPER-780: -- Attachment: ZOOKEEPER-780.patch If no data is provided for the new node when using the create zkCli.sh command assume an empty byte array. zkCli.sh generates a ArrayIndexOutOfBoundsException - Key: ZOOKEEPER-780 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-780 Project: Zookeeper Issue Type: Bug Components: scripts Affects Versions: 3.3.1 Environment: Linux Ubuntu running in VMPlayer on top of Windows XP Reporter: Miguel Correia Priority: Minor Attachments: ZOOKEEPER-780.patch I'm starting to play with Zookeeper so I'm still running it in standalone mode. This is not a big issue, but here it goes for the records. I've run zkCli.sh to run some commands in the server. I created a znode /groups. When I tried to create a znode client_1 inside /groups, I forgot to include the data: an exception was generated and zkCli-sh crashed, instead of just showing an error. I tried a few variations and it seems like the problem is not including the data. A copy of the screen: [zk: localhost:2181(CONNECTED) 3] create /groups firstgroup Created /groups [zk: localhost:2181(CONNECTED) 4] create -e /groups/client_1 Exception in thread main java.lang.ArrayIndexOutOfBoundsException: 3 at org.apache.zookeeper.ZooKeeperMain.processZKCmd(ZooKeeperMain.java:678) at org.apache.zookeeper.ZooKeeperMain.processCmd(ZooKeeperMain.java:581) at org.apache.zookeeper.ZooKeeperMain.executeLine(ZooKeeperMain.java:353) at org.apache.zookeeper.ZooKeeperMain.run(ZooKeeperMain.java:311) at org.apache.zookeeper.ZooKeeperMain.main(ZooKeeperMain.java:270) -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Savu Andrei updated ZOOKEEPER-744: -- Attachment: ZOOKEEPER-744.patch I have added two more keys: zk_open_file_descriptor_count 23 zk_max_file_descriptor_count1024 @Travis could you post 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, 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] Updated: (ZOOKEEPER-777) setting acl on a non existant node should return no node error
[ https://issues.apache.org/jira/browse/ZOOKEEPER-777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Savu Andrei updated ZOOKEEPER-777: -- Attachment: test.py setting acl on a non existant node should return no node error -- Key: ZOOKEEPER-777 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-777 Project: Zookeeper Issue Type: Bug Components: server Affects Versions: 3.3.0, 3.3.1 Reporter: Kapil Thangavelu Fix For: 3.4.0 Attachments: test.py currently it just returns successfully, but the acl can't be retrieved, and if any value is being stored, its overwritten when the node is created. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Savu Andrei updated ZOOKEEPER-744: -- Status: Patch Available (was: Open) Release Note: Added new 4letter word for monitoring: mntr The output is compatible with the Java properties format.Your script should expect content changes: new keys could be added in the future. Affects Version/s: 3.4.0 Assignee: Savu Andrei 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] Updated: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Savu Andrei updated ZOOKEEPER-744: -- Attachment: ZOOKEEPER-744.patch I have fixed the patch: changed forrest docs and added tests. @Travis: I believe your script should do some sort of filtering / format. Is it really a good idea to just throw any output in Ganglia? PS: sorry for the late answer, I had some problems with forrest and java1.6 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] Updated: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Savu Andrei updated ZOOKEEPER-744: -- Attachment: (was: ZOOKEEPER-744.patch) 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] Updated: (ZOOKEEPER-744) Add monitoring four-letter word
[ https://issues.apache.org/jira/browse/ZOOKEEPER-744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Savu Andrei updated ZOOKEEPER-744: -- Attachment: ZOOKEEPER-744.patch Added one more 4letter word for monitoring: mntr Output: $ echo mntr | nc localhost 2185 zk_version 3.4.0--1, built on 05/24/2010 12:38 GMT zk_avg_latency 0 zk_max_latency 0 zk_min_latency 0 zk_packets_received 70 zk_packets_sent 69 zk_outstanding_requests 0 zk_server_state leader zk_node_count 4 zk_watch_count 0 zk_ephemerals_count 0 zk_approximate_data_size27 zk_followers4 zk_synced_followers 4 zk_pending_syncs0 What else should I add here? 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-701) GSoC 2010: Monitoring Recipes and Web-based Administrative Interface
[ https://issues.apache.org/jira/browse/ZOOKEEPER-701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=12864970#action_12864970 ] Savu Andrei commented on ZOOKEEPER-701: --- I have created a wiki page for tracking my work on this project. You can find it at the following url: http://wiki.apache.org/hadoop/ZooKeeper/GSoCMonitoringAndWebInterface GSoC 2010: Monitoring Recipes and Web-based Administrative Interface Key: ZOOKEEPER-701 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-701 Project: Zookeeper Issue Type: Wish Reporter: Henry Robinson Assignee: Savu Andrei Attachments: milestones.txt Monitoring Recipes And Web-based Administrative Interface Mentor: Patrick Hunt (ph...@apache.org) Requirements: Modern web platform - e.g. Django. Some design or UI skills would help. Java for adding methods to ZooKeeper. Description: ZooKeeper is a complex distributed system. Understanding how well it is running is tremendously important. Patrick Hunt has created a Django-based dashboard (see http://github.com/phunt/zookeeper_dashboard) that allows some insight into how ZooKeeper is running. This is a great foundation on which to build; however there are improvements that could be made! This project would capture much more information from ZooKeeper, adding hooks to retrieve it where necessary and visualise it in a appealing and useful way. Integration with Ganglia would be a definite plus. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Assigned: (ZOOKEEPER-701) GSoC 2010: Web-based Administrative Interface
[ https://issues.apache.org/jira/browse/ZOOKEEPER-701?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Savu Andrei reassigned ZOOKEEPER-701: - Assignee: Savu Andrei GSoC 2010: Web-based Administrative Interface - Key: ZOOKEEPER-701 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-701 Project: Zookeeper Issue Type: Wish Reporter: Henry Robinson Assignee: Savu Andrei Web-based Administrative Interface Possible Mentor Henry Robinson (henry at apache dot org) Requirements Modern web platform - e.g. Django. Some design or UI skills would help. Java for adding methods to ZooKeeper. Description ZooKeeper is a complex distributed system. Understanding how well it is running is tremendously important. Patrick Hunt has created a Django-based dashboard (see http://github.com/phunt/zookeeper_dashboard#readme) that allows some insight into how ZooKeeper is running. This is a great foundation on which to build; however there are improvements that could be made! This project would capture much more information from ZooKeeper, adding hooks to retrieve it where necessary and visualise it in a appealing and useful way. Integration with Ganglia would be a definite plus. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (ZOOKEEPER-701) GSoC 2010: Monitoring Recipes and Web-based Administrative Interface
[ https://issues.apache.org/jira/browse/ZOOKEEPER-701?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Savu Andrei updated ZOOKEEPER-701: -- Attachment: milestones.txt In the first phase of the project I will focus my attention on solving monitoring related issues and identifying important health signals. In the second phase I will focus exclusively on the web application. GSoC 2010: Monitoring Recipes and Web-based Administrative Interface Key: ZOOKEEPER-701 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-701 Project: Zookeeper Issue Type: Wish Reporter: Henry Robinson Assignee: Savu Andrei Attachments: milestones.txt Monitoring Recipes And Web-based Administrative Interface Mentor: Patrick Hunt (ph...@apache.org) Requirements: Modern web platform - e.g. Django. Some design or UI skills would help. Java for adding methods to ZooKeeper. Description: ZooKeeper is a complex distributed system. Understanding how well it is running is tremendously important. Patrick Hunt has created a Django-based dashboard (see http://github.com/phunt/zookeeper_dashboard) that allows some insight into how ZooKeeper is running. This is a great foundation on which to build; however there are improvements that could be made! This project would capture much more information from ZooKeeper, adding hooks to retrieve it where necessary and visualise it in a appealing and useful way. Integration with Ganglia would be a definite plus. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (ZOOKEEPER-754) numerous misspellings succesfully
[ https://issues.apache.org/jira/browse/ZOOKEEPER-754?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Savu Andrei updated ZOOKEEPER-754: -- Attachment: ZOOKEEPER-754.patch The patch affects a single file: pyzk_docstrings.h. It applies cleanly on trunk and on the latest release (3.3.0). numerous misspellings succesfully --- Key: ZOOKEEPER-754 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-754 Project: Zookeeper Issue Type: Task Components: contrib Affects Versions: 3.3.0 Reporter: Thomas Koch Attachments: ZOOKEEPER-754.patch When testing the debian package of zookeeper with the standard tool lintian, it fills my screen with complains about the misspelling of succesfully in several places of the zkpython contrib. Please be so kind to correct this, when you touch the code the next time. Thanks! -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (ZOOKEEPER-754) numerous misspellings succesfully
[ https://issues.apache.org/jira/browse/ZOOKEEPER-754?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Savu Andrei updated ZOOKEEPER-754: -- Attachment: ZOOKEEPER-754.patch Fixed patch. It will replace all errors in all the files. numerous misspellings succesfully --- Key: ZOOKEEPER-754 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-754 Project: Zookeeper Issue Type: Task Components: contrib-bindings, documentation Affects Versions: 3.3.0 Reporter: Thomas Koch Assignee: Savu Andrei Fix For: 3.3.1, 3.4.0 Attachments: ZOOKEEPER-754.patch, ZOOKEEPER-754.patch When testing the debian package of zookeeper with the standard tool lintian, it fills my screen with complains about the misspelling of succesfully in several places of the zkpython contrib. Please be so kind to correct this, when you touch the code the next time. Thanks! -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
[jira] Updated: (ZOOKEEPER-754) numerous misspellings succesfully
[ https://issues.apache.org/jira/browse/ZOOKEEPER-754?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Savu Andrei updated ZOOKEEPER-754: -- Status: Patch Available (was: Open) Release Note: fixed numerous misspellings of succesfully in the c client and python bindings numerous misspellings succesfully --- Key: ZOOKEEPER-754 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-754 Project: Zookeeper Issue Type: Task Components: contrib-bindings, documentation Affects Versions: 3.3.0 Reporter: Thomas Koch Assignee: Savu Andrei Fix For: 3.3.1, 3.4.0 Attachments: ZOOKEEPER-754.patch, ZOOKEEPER-754.patch When testing the debian package of zookeeper with the standard tool lintian, it fills my screen with complains about the misspelling of succesfully in several places of the zkpython contrib. Please be so kind to correct this, when you touch the code the next time. Thanks! -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.
