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From "Konstantin Shvachko (Jira)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-15185) StartupProgress reports edits segments until the entire startup completes
Date Thu, 20 Feb 2020 02:13:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-15185?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Konstantin Shvachko updated HDFS-15185:
---------------------------------------
    Release Note: New segments are added via {{StartupProgress.setTotal()}}, which adds steps
even though the phase is complete. {{setTotal()}} is called in {{FSEditLogLoader.loadEditRecords()}}
while tailing edits through {{EditLogTailer.doTailEdits()}} after the {{LOADING_EDITS}} phase
ended.
          Status: Patch Available  (was: Open)

> StartupProgress reports edits segments until the entire startup completes
> -------------------------------------------------------------------------
>
>                 Key: HDFS-15185
>                 URL: https://issues.apache.org/jira/browse/HDFS-15185
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 2.10.0
>            Reporter: Konstantin Shvachko
>            Assignee: Konstantin Shvachko
>            Priority: Major
>         Attachments: HDFS-15185.001.patch
>
>
> Startup Progress page keeps reporting edits segments after the {{LOAD_EDITS}} stage is
complete. New steps are added to StartupProgress while journal tailing until all startup phases
are completed. This adds a lot of edits steps, since {{SAFEMODE}} phase can take a long time
on a large cluster.
> With fast tailing the segments are small, but the number of them is large - 160K. This
makes the page load forever.



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