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Date: Wed, 10 Feb 2016 01:15:18 +0000 (UTC)
From: "Guocui Mi (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12938053.1455066015000.11543.1455066918202@Atlassian.JIRA>
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Subject: [jira] [Updated] (HDFS-9787) SNNs stop uploading FSImage to ANN
 once isPrimaryCheckPointer changed to false.
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     [ https://issues.apache.org/jira/browse/HDFS-9787?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guocui Mi updated HDFS-9787:
----------------------------
    Status: Open  (was: Patch Available)

> 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
>
> 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 || secsSinceLastUpload >= 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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