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Posted to issues@hbase.apache.org by "Michael Stack (Jira)" <ji...@apache.org> on 2020/09/30 16:46:00 UTC

[jira] [Resolved] (HBASE-25109) Add MR Counters to WALPlayer; currently hard to tell if it is doing anything

     [ https://issues.apache.org/jira/browse/HBASE-25109?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Michael Stack resolved HBASE-25109.
-----------------------------------
    Fix Version/s: 2.4.0
                   2.3.3
                   3.0.0-alpha-1
     Hadoop Flags: Reviewed
         Assignee: Michael Stack
       Resolution: Fixed

Pushed to branch-2.3+. Thanks for review [~huaxiangsun]

> Add MR Counters to WALPlayer; currently hard to tell if it is doing anything
> ----------------------------------------------------------------------------
>
>                 Key: HBASE-25109
>                 URL: https://issues.apache.org/jira/browse/HBASE-25109
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Michael Stack
>            Assignee: Michael Stack
>            Priority: Major
>             Fix For: 3.0.0-alpha-1, 2.3.3, 2.4.0
>
>
> For example, when WALPlayer runs, it emits this:
> {code:java}
> 020-09-28 11:16:05,489 INFO  [LocalJobRunner Map Task Executor #0] mapred.Task: Final Counters for attempt_local1916643172_0001_m_000000_0: Counters: 20
> 	File System Counters
> 		FILE: Number of bytes read=268891453
> 		FILE: Number of bytes written=1018719
> 		FILE: Number of read operations=0
> 		FILE: Number of large read operations=0
> 		FILE: Number of write operations=0
> 	Map-Reduce Framework
> 		Map input records=4375
> 		Map output records=5369
> 		Input split bytes=245
> 		Spilled Records=0
> 		Failed Shuffles=0
> 		Merged Map outputs=0
> 		GC time elapsed (ms)=59
> 		Total committed heap usage (bytes)=518979584
> 	File Input Format Counters
> 		Bytes Read=0
> 	File Output Format Counters
> 		Bytes Written=0 {code}
> Change it so it does this:
> {code:java}
> 020-09-28 11:16:05,489 INFO  [LocalJobRunner Map Task Executor #0] mapred.Task: Final Counters for attempt_local1916643172_0001_m_000000_0: Counters: 20
> 	File System Counters
> 		FILE: Number of bytes read=268891453
> 		FILE: Number of bytes written=1018719
> 		FILE: Number of read operations=0
> 		FILE: Number of large read operations=0
> 		FILE: Number of write operations=0
> 	Map-Reduce Framework
> 		Map input records=4375
> 		Map output records=5369
> 		Input split bytes=245
> 		Spilled Records=0
> 		Failed Shuffles=0
> 		Merged Map outputs=0
> 		GC time elapsed (ms)=59
> 		Total committed heap usage (bytes)=518979584
> 	org.apache.hadoop.hbase.mapreduce.WALPlayer$Counter
> 		CELLS_READ=89574
> 		CELLS_WRITTEN=89572
> 		DELETES=64
> 		PUTS=5305
> 		WALEDITS=4375
> 	File Input Format Counters
> 		Bytes Read=0
> 	File Output Format Counters
> 		Bytes Written=0 {code}



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