[jira] [Updated] (HIVE-17341) DbTxnManger.startHeartbeat() - randomize initial delay

2017-08-25 Thread Eugene Koifman (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-17341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Eugene Koifman updated HIVE-17341:
--
   Resolution: Fixed
Fix Version/s: 3.0.0
   Status: Resolved  (was: Patch Available)

committed to master
thanks Wei for the review

cc [~gopalv]

> DbTxnManger.startHeartbeat() - randomize initial delay
> --
>
> Key: HIVE-17341
> URL: https://issues.apache.org/jira/browse/HIVE-17341
> Project: Hive
>  Issue Type: Improvement
>  Components: Transactions
>Reporter: Eugene Koifman
>Assignee: Eugene Koifman
> Fix For: 3.0.0
>
> Attachments: HIVE-17341.01.patch
>
>
> This sets up a fixed delay for all heartebeats.  If many queries land on the 
> server at the same time,
> they will wake up and start hearbeating at the same time causing a bottleneck.
> Add some random element to heatbeat delay.



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[jira] [Updated] (HIVE-17341) DbTxnManger.startHeartbeat() - randomize initial delay

2017-08-24 Thread Eugene Koifman (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-17341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Eugene Koifman updated HIVE-17341:
--
Status: Patch Available  (was: Open)

> DbTxnManger.startHeartbeat() - randomize initial delay
> --
>
> Key: HIVE-17341
> URL: https://issues.apache.org/jira/browse/HIVE-17341
> Project: Hive
>  Issue Type: Improvement
>  Components: Transactions
>Reporter: Eugene Koifman
>Assignee: Eugene Koifman
> Attachments: HIVE-17341.01.patch
>
>
> This sets up a fixed delay for all heartebeats.  If many queries land on the 
> server at the same time,
> they will wake up and start hearbeating at the same time causing a bottleneck.
> Add some random element to heatbeat delay.



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[jira] [Updated] (HIVE-17341) DbTxnManger.startHeartbeat() - randomize initial delay

2017-08-24 Thread Eugene Koifman (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-17341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Eugene Koifman updated HIVE-17341:
--
Attachment: HIVE-17341.01.patch

[~wzheng] could you review please


> DbTxnManger.startHeartbeat() - randomize initial delay
> --
>
> Key: HIVE-17341
> URL: https://issues.apache.org/jira/browse/HIVE-17341
> Project: Hive
>  Issue Type: Improvement
>  Components: Transactions
>Reporter: Eugene Koifman
>Assignee: Eugene Koifman
> Attachments: HIVE-17341.01.patch
>
>
> This sets up a fixed delay for all heartebeats.  If many queries land on the 
> server at the same time,
> they will wake up and start hearbeating at the same time causing a bottleneck.
> Add some random element to heatbeat delay.



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[jira] [Updated] (HIVE-17341) DbTxnManger.startHeartbeat() - randomize initial delay

2017-08-16 Thread Eugene Koifman (JIRA)

 [ 
https://issues.apache.org/jira/browse/HIVE-17341?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Eugene Koifman updated HIVE-17341:
--
Summary: DbTxnManger.startHeartbeat() - randomize initial delay  (was: 
DbTxnManger.startHeartbeat())

> DbTxnManger.startHeartbeat() - randomize initial delay
> --
>
> Key: HIVE-17341
> URL: https://issues.apache.org/jira/browse/HIVE-17341
> Project: Hive
>  Issue Type: Improvement
>  Components: Transactions
>Reporter: Eugene Koifman
>Assignee: Eugene Koifman
>
> This sets up a fixed delay for all heartebeats.  If many queries land on the 
> server at the same time,
> they will wake up and start hearbeating at the same time causing a bottleneck.
> Add some random element to heatbeat delay.



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