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From "huhaiyang (Jira)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-15024) [SBN read] In FailoverOnNetworkExceptionRetry , Number of NameNodes as a condition of calculation of sleep time
Date Fri, 29 Nov 2019 05:42:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-15024?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

huhaiyang updated HDFS-15024:
-----------------------------
           Attachment: HDFS-15024.001.patch
    Affects Version/s: 3.3.0
                       2.10.0
                       3.2.1
          Description: 
{code:java}
When we enable the ONN , there will be three NN nodes for the client configuration,
Such as configuration

<property>
    <name>dfs.ha.namenodes.ns1</name>
    <value>nn2,nn3,nn1</value>
</property>

Currently, nn2 is in standby state, nn3 is in observer state, and nn1 is in active state
When the user performs an access HDFS operation


{code}
              Summary: [SBN read] In FailoverOnNetworkExceptionRetry , Number of NameNodes
as a condition of calculation of sleep time  (was: [SBN read] In FailoverOnNetworkExceptionRetry
getFailoverOrRetrySleepTime method, Number of NameNodes as a condition of calculation of sleep
time)

> [SBN read] In FailoverOnNetworkExceptionRetry , Number of NameNodes as a condition of
calculation of sleep time
> ---------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-15024
>                 URL: https://issues.apache.org/jira/browse/HDFS-15024
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>    Affects Versions: 2.10.0, 3.3.0, 3.2.1
>            Reporter: huhaiyang
>            Priority: Major
>         Attachments: HDFS-15024.001.patch
>
>
> {code:java}
> When we enable the ONN , there will be three NN nodes for the client configuration,
> Such as configuration
> <property>
>     <name>dfs.ha.namenodes.ns1</name>
>     <value>nn2,nn3,nn1</value>
> </property>
> Currently, nn2 is in standby state, nn3 is in observer state, and nn1 is in active state
> When the user performs an access HDFS operation
> {code}



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