hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Duo Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15264) Implement a fan out HDFS OutputStream
Date Fri, 19 Feb 2016 09:03:18 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15153951#comment-15153951
] 

Duo Zhang commented on HBASE-15264:
-----------------------------------

Oh, I forgot an important thing, we can not close WAL writer asynchronously and also we can
not use recoverFileLease.

The reason is that, we use the lease on WAL file to do fencing, which means that, if we failed
to close the WAL file current being written , it is likely that we are considered dead on
master.

So the close must be synchronous, and also, we should close the file normally instead of calling
recoverFileLease...

Let me retry the recoverAndClose part...

Thanks.



> Implement a fan out HDFS OutputStream
> -------------------------------------
>
>                 Key: HBASE-15264
>                 URL: https://issues.apache.org/jira/browse/HBASE-15264
>             Project: HBase
>          Issue Type: Sub-task
>          Components: util, wal
>            Reporter: Duo Zhang
>            Assignee: Duo Zhang
>             Fix For: 2.0.0
>
>         Attachments: HBASE-15264-v1.patch, HBASE-15264-v2.patch, HBASE-15264-v3.patch,
HBASE-15264-v4.patch, HBASE-15264.patch
>
>




--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message