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https://issues.apache.org/jira/browse/HBASE-7869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13580434#comment-13580434
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Lars Hofhansl commented on HBASE-7869:
--------------------------------------

I suppose there is no harm in disabling the syncer if it's done through a 
config option.
We can either use hbase.regionserver.optionallogflushinterval=0 or maybe 
hbase.regionserver.optionallogflushinterval=MAX_INT.
                
> Provide way to not start LogSyncer thread
> -----------------------------------------
>
>                 Key: HBASE-7869
>                 URL: https://issues.apache.org/jira/browse/HBASE-7869
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver, wal
>            Reporter: Anoop Sam John
>            Assignee: Anoop Sam John
>             Fix For: 0.96.0, 0.94.6
>
>
> In our usecase we want all the Mutations on all the tables to be immediately 
> written and synced to WAL. We dont want the LogSyncer thread to be running in 
> such a case.
> In minbatch operation we write entries to WAL and we use postWALWrite and 
> write some more WAL entries(Only write no sync). We want all these written 
> data to be synced as one unit (at the sync step in doMiniBatchOperation) But 
> if the LogSyncer thread is running in the system it can come and do the sync 
> at any point in time which we dont want in our case.

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