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https://issues.apache.org/jira/browse/HDFS-15562?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aihua Xu updated HDFS-15562:
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Status: Patch Available (was: Open)
patch-1: Standby NameNode will do the checkpoint and upload the image to active
and Observer NameNodes. Currently if any remote NameNode is down and uploads
fails, then standby NameNode will immediately do the checkpoint again and try
uploading.
With multiple Observer NameNodes, it's not required that all the Observers are
running. The patch will throw exception for checkpoint itself but not for
upload failures.
> StandbyCheckpointer will do checkpoint repeatedly while connecting
> observer/active namenode failed
> --------------------------------------------------------------------------------------------------
>
> Key: HDFS-15562
> URL: https://issues.apache.org/jira/browse/HDFS-15562
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: SunHao
> Assignee: Aihua Xu
> Priority: Major
> Attachments: HDFS-15562.patch
>
>
> We find the standby namenode will do checkpoint over and over while
> connecting observer/active namenode failed.
> StandbyCheckpointer won't update “lastCheckpointTime” when upload new fsimage
> to the other namenode failed, so that the standby namenode will keep doing
> checkpoint repeatedly.
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