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https://issues.apache.org/jira/browse/HDFS-14687?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16907854#comment-16907854
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Surendra Singh Lilhore commented on HDFS-14687:
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[~smeng] for review, attached updated patch.
{quote} Looking at the fix, this looks really bad.
{quote}
[~jojochuang], do you have any other fix for this, I didn't get what is bad
here ?
> Standby Namenode never come out of safemode when EC files are being written.
> ----------------------------------------------------------------------------
>
> Key: HDFS-14687
> URL: https://issues.apache.org/jira/browse/HDFS-14687
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ec, namenode
> Affects Versions: 3.1.1
> Reporter: Surendra Singh Lilhore
> Assignee: Surendra Singh Lilhore
> Priority: Critical
> Attachments: HDFS-14687.001.patch, HDFS-14687.002.patch,
> HDFS-14687.003.patch
>
>
> When huge number of EC files are being written and SBN is restarted then it
> will never come out of safe mode and required blocks count getting increase.
> {noformat}
> The reported blocks 16658401 needs additional 1702 blocks to reach the
> threshold 0.99999 of total blocks 16660120.
> The reported blocks 16658659 needs additional 2935 blocks to reach the
> threshold 0.99999 of total blocks 16661611.
> The reported blocks 16659947 needs additional 3868 blocks to reach the
> threshold 0.99999 of total blocks 16663832.
> The reported blocks 16666335 needs additional 5116 blocks to reach the
> threshold 0.99999 of total blocks 16671468.
> The reported blocks 16669311 needs additional 6384 blocks to reach the
> threshold 0.99999 of total blocks 16675712.
> {noformat}
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