[jira] [Updated] (HDFS-11879) Fix JN sync interval in case of exception

["Hanisha Koneru (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-11879?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hanisha Koneru updated HDFS-11879:
----------------------------------
    Status: Patch Available  (was: Open)

> Fix JN sync interval in case of exception
> -----------------------------------------
>
>                 Key: HDFS-11879
>                 URL: https://issues.apache.org/jira/browse/HDFS-11879
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Hanisha Koneru
>            Assignee: Hanisha Koneru
>         Attachments: HDFS-11879.001.patch
>
>
> Currently, if there is an exception in _JournalNodeSyncer#syncJournal_, the sync daemon does not wait the specified interval before the next sync attempt. 
> In the following code block in _JournalNodeSyncer#startSyncJournalsDaemon_, Thread.sleep should be moved to a separate try catch block from _syncJournal()_ to avoid skipping it in case of exception.
> {code}
>         try {
>           if (!journal.isFormatted()) {
>             LOG.warn("Journal cannot sync. Not formatted.");
>           } else {
>             syncJournals();
>           }
>           Thread.sleep(journalSyncInterval);
>         } catch (Throwable t) {
>            .......
> {code}



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