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From "Avery Ching (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GIRAPH-1009) Spammy 'lost reservation' messages from ZooKeeper in workers' log at the end of the computation.
Date Tue, 26 May 2015 20:00:17 GMT

    [ https://issues.apache.org/jira/browse/GIRAPH-1009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14559742#comment-14559742
] 

Avery Ching commented on GIRAPH-1009:
-------------------------------------

https://reviews.facebook.net/D38949
+1'ed.

> Spammy 'lost reservation' messages from ZooKeeper in workers' log at the end of the computation.
> ------------------------------------------------------------------------------------------------
>
>                 Key: GIRAPH-1009
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-1009
>             Project: Giraph
>          Issue Type: Bug
>          Components: bsp, zookeeper
>    Affects Versions: 1.2.0-SNAPSHOT
>         Environment: All environment, while running with more than one worker.
>            Reporter: Hassan Eslami
>            Assignee: Hassan Eslami
>            Priority: Minor
>              Labels: log, worker, zookeeper
>             Fix For: 1.2.0-SNAPSHOT
>
>   Original Estimate: 72h
>  Remaining Estimate: 72h
>
> When running Giraph with more than one worker, ZooKeeper usually throws a bunch of 'lost
reservation' info log messages for input splits at the end of the computation in workers'
log. This clutters log file of workers, specially in cases where the job is running on a large
graph with fairly large number of input splits.
> Here are examples of these log messages:
> ...
> {{INFO    2015-05-19 14:44:58,894 \[main-EventThread\] org.apache.giraph.worker.InputSplitsHandler
 - process: Input split /_hadoopBsp/job_201411061513.184523_0001/_edgeInputSplitDir/1126 lost
reservation}}
> {{INFO    2015-05-19 14:44:58,894 \[main-EventThread\] org.apache.giraph.worker.InputSplitsHandler
 - process: Input split /_hadoopBsp/job_201411061513.184523_0001/_edgeInputSplitDir/2585 lost
reservation}}
> {{INFO    2015-05-19 14:44:58,895 \[main-EventThread\] org.apache.giraph.worker.InputSplitsHandler
 - process: Input split /_hadoopBsp/job_201411061513.184523_0001/_edgeInputSplitDir/1166 lost
reservation}}
> {{INFO    2015-05-19 14:44:58,895 \[main-EventThread\] org.apache.giraph.worker.InputSplitsHandler
 - process: Input split /_hadoopBsp/job_201411061513.184523_0001/_edgeInputSplitDir/1212 lost
reservation}}
> {{INFO    2015-05-19 14:44:58,895 \[main-EventThread\] org.apache.giraph.worker.InputSplitsHandler
 - process: Input split /_hadoopBsp/job_201411061513.184523_0001/_edgeInputSplitDir/1666 lost
reservation}}
> {{INFO    2015-05-19 14:44:58,896 \[main-EventThread\] org.apache.giraph.worker.InputSplitsHandler
 - process: Input split /_hadoopBsp/job_201411061513.184523_0001/_edgeInputSplitDir/2282 lost
reservation}}
> {{INFO    2015-05-19 14:44:58,896 \[main-EventThread\] org.apache.giraph.worker.InputSplitsHandler
 - process: Input split /_hadoopBsp/job_201411061513.184523_0001/_edgeInputSplitDir/1302 lost
reservation}}
> {{INFO 2015-05-19 14:44:58,896 \[main-EventThread\] org.apache.giraph.worker.InputSplitsHandler
- process: Input split /_hadoopBsp/job_201411061513.184523_0001/_edgeInputSplitDir/2364 lost
reservation}}
> ...



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