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https://issues.apache.org/jira/browse/HBASE-15265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15192848#comment-15192848
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Duo Zhang commented on HBASE-15265:
-----------------------------------
{quote}
At a glance of HBASE-14949 and comments there, it seems multiwal will have some
problem with the patch?
{quote}
I used to worry about whether the wal entries of one region could be written to
different wal files. This may cause some problems, I'm not sure. But this could
not happen since wal is a final field in HRegion. And in the DLS mode, we will
flush the memstore and clean up the splitted wal files before processing
further requests. So it is still safe if a region moves out and then moves
back. For DLR, first it does not need to split wal files, and second, we are
going to remove the feature?
Thanks.
> Implement an asynchronous FSHLog
> --------------------------------
>
> Key: HBASE-15265
> URL: https://issues.apache.org/jira/browse/HBASE-15265
> Project: HBase
> Issue Type: Sub-task
> Components: wal
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Fix For: 2.0.0
>
> Attachments: HBASE-15265-v1.patch, HBASE-15265-v2.patch,
> HBASE-15265-v3.patch, HBASE-15265-v4.patch, HBASE-15265-v5.patch,
> HBASE-15265-v6.patch, HBASE-15265-v7.patch, HBASE-15265.patch
>
>
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