hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Yu Li (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-17114) Add an option to set special retry pause when encountering CallQueueTooBigException
Date Tue, 29 Nov 2016 16:23:58 GMT

     [ https://issues.apache.org/jira/browse/HBASE-17114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yu Li updated HBASE-17114:
--------------------------
    Release Note: In HBASE-17114 we introduced a new property hbase.client.pause.cqtbe which
makes it possible to set a longer pause for CallQueueTooBigException (CQTBE), it's disabled
by default and {{hbase.client.pause}} will still be used for CQTBE. Set this property to a
higher value if you observe frequent CQTBE from the same	RegionServer and the call queue there
keeps full
     Description: 
As titled, after HBASE-15146 we will throw {{CallQueueTooBigException}} instead of dead-wait.
This is good for performance for most cases but might cause a side-effect that if too many
clients connect to the busy RS, that the retry requests may come over and over again and RS
never got the chance for recovering, and the issue will become especially critical when the
target region is META.

So here in this JIRA we propose to add a new property in name of {{hbase.client.pause.cqtbe}}
to make it possible to set a special-longer pause for CallQueueTooBigException, and by default
it will use the setting of {{hbase.client.pause}}

  was:
As titled, after HBASE-15146 we will throw {{CallQueueTooBigException}} instead of dead-wait.
This is good for performance for most cases but might cause a side-effect that if too many
clients connect to the busy RS, that the retry requests may come over and over again and RS
never got the chance for recovering, and the issue will become especially critical when the
target region is META.

So here in this JIRA we propose to supply some special retry pause for CQTBE in name of {{hbase.client.pause.special}},
and by default it will be 500ms (5 times of {{hbase.client.pause}} default value)


Update description and add release note

> Add an option to set special retry pause when encountering CallQueueTooBigException
> -----------------------------------------------------------------------------------
>
>                 Key: HBASE-17114
>                 URL: https://issues.apache.org/jira/browse/HBASE-17114
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Yu Li
>            Assignee: Yu Li
>         Attachments: HBASE-17114.patch, HBASE-17114.v2.patch, HBASE-17114.v3.patch
>
>
> As titled, after HBASE-15146 we will throw {{CallQueueTooBigException}} instead of dead-wait.
This is good for performance for most cases but might cause a side-effect that if too many
clients connect to the busy RS, that the retry requests may come over and over again and RS
never got the chance for recovering, and the issue will become especially critical when the
target region is META.
> So here in this JIRA we propose to add a new property in name of {{hbase.client.pause.cqtbe}}
to make it possible to set a special-longer pause for CallQueueTooBigException, and by default
it will use the setting of {{hbase.client.pause}}



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

Mime
View raw message