hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-11511) Write flush events to WAL
Date Wed, 16 Jul 2014 01:28:05 GMT

     [ https://issues.apache.org/jira/browse/HBASE-11511?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Enis Soztutar updated HBASE-11511:
----------------------------------

    Attachment: hbase-11511_addendum.patch

Newly added test sometimes fails flakily. Although I could not reproduce it locally, I think
it is because of a fs list ordering issue. Will commit the addendum shortly. Let's see whether
this solves the issue. 

Example trace:
https://builds.apache.org/job/hbase-trunk/5308/testReport/junit/org.apache.hadoop.hbase.regionserver/TestHRegionBusyWait/testFlushMarkers/

> Write flush events to WAL
> -------------------------
>
>                 Key: HBASE-11511
>                 URL: https://issues.apache.org/jira/browse/HBASE-11511
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>             Fix For: 0.99.0, 2.0.0
>
>         Attachments: hbase-11511_addendum.patch, hbase-11511_v1.patch, hbase-11511_v1.patch,
hbase-11511_v2.patch, hbase-11511_v3.patch, hbase-11511_v4.patch
>
>
> We used to write COMPLETE_FLUSH event to WAL until it got removed in 0.96 in issue HBASE-7329.

> For secondary region replicas, it is important to share the data files with the primary
region. So we should reintroduce the flush wal markers so that the secondary region replicas
can pick up the newly flushed files from the WAL and start serving data from those. 
> A design doc which explains the context a bit better can be found in HBASE-11183. 



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Mime
View raw message