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https://issues.apache.org/jira/browse/HBASE-17049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15725574#comment-15725574
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Duo Zhang commented on HBASE-17049:
-----------------------------------
I planned to run a single node HBase on a distributed HDFS, but the testing
node which is in the same DC of the HDFS cluster is used by others these days.
Will try this later, or I will just run a PE on a fully distributed
cluster(both HBase and HDFS).
And I have run a single node PE test with multiwal, BoundedGroupingStrategy, 8
wals.
{noformat}
./bin/hbase org.apache.hadoop.hbase.PerformanceEvaluation --nomapred
--presplit=50 --size=50 --columns=50 --valueSize=200 --writeToWAL=true
--bloomFilter=NONE randomWrite 50
FSHLog: Min: 392959ms Max: 413928ms Avg: 406991ms
AsyncFSWAL: Min: 359566ms Max: 397469ms Avg: 391964ms
{noformat}
AsyncFSWAL is a bit faster. So I think this is the right way to increase the
performance of AsyncFSWAL.
[~stack] Can you try to see if this also works for you sir? Both [~ram_krish]
and I can get a better result with multiwal(although in ram's test AsyncFSWAL
is still a bit slower).
Thanks.
> Find out why AsyncFSWAL issues much more syncs than FSHLog
> ----------------------------------------------------------
>
> Key: HBASE-17049
> URL: https://issues.apache.org/jira/browse/HBASE-17049
> Project: HBase
> Issue Type: Sub-task
> Components: wal
> Affects Versions: 2.0.0
> Reporter: Duo Zhang
> Fix For: 2.0.0
>
> Attachments: delay-sync.patch
>
>
> https://issues.apache.org/jira/browse/HBASE-16890?focusedCommentId=15647590&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15647590
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