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From "Inigo Goiri (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-9787) SNNs stop uploading FSImage to ANN once isPrimaryCheckPointer changed to false.
Date Wed, 10 Feb 2016 02:21:18 GMT

    [ https://issues.apache.org/jira/browse/HDFS-9787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15140220#comment-15140220
] 

Inigo Goiri commented on HDFS-9787:
-----------------------------------

My bad, this is right.
We will test resetting the {{lastCheckpointTime}} in every loop.

> SNNs stop uploading FSImage to ANN once isPrimaryCheckPointer changed to false.
> -------------------------------------------------------------------------------
>
>                 Key: HDFS-9787
>                 URL: https://issues.apache.org/jira/browse/HDFS-9787
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: ha
>    Affects Versions: 3.0.0
>            Reporter: Guocui Mi
>            Assignee: Guocui Mi
>         Attachments: HDFS-9786-v000.patch
>
>
> SNNs stop uploading FSImage to ANN once isPrimaryCheckPointer become false. 
> Here is the logic to check if upload FSImage or not.
> In StandbyCheckpointer.java
> boolean sendRequest = isPrimaryCheckPointer || secsSinceLast >= checkpointConf.getQuietPeriod();
>             doCheckpoint(sendRequest);
> The sendRequest is always false if isPrimaryCheckPointer is false giving secsSinceLast
(~checkpointPeriod) >= checkpointConf.getQuietPeriod() (checkpointPeriod * this.quietMultiplier(default
value 1.5)) always returns false.



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