[
https://issues.apache.org/jira/browse/HDFS-12914?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16899346#comment-16899346
]
Hadoop QA commented on HDFS-12914:
----------------------------------
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 6s{color}
| {color:red} HDFS-12914 does not apply to trunk. Rebase required? Wrong
Branch? See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
\\
\\
|| Subsystem || Report/Notes ||
| JIRA Issue | HDFS-12914 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12976598/HDFS-12914.002.patch |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/27389/console |
| Powered by | Apache Yetus 0.8.0 http://yetus.apache.org |
This message was automatically generated.
> Block report leases cause missing blocks until next report
> ----------------------------------------------------------
>
> Key: HDFS-12914
> URL: https://issues.apache.org/jira/browse/HDFS-12914
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.8.0, 2.9.2
> Reporter: Daryn Sharp
> Assignee: Santosh Marella
> Priority: Critical
> Fix For: 3.0.4, 3.3.0, 3.2.1, 3.1.3
>
> Attachments: HDFS-12914-branch-2.001.patch,
> HDFS-12914-trunk.00.patch, HDFS-12914-trunk.01.patch, HDFS-12914.002.patch,
> HDFS-12914.005.patch, HDFS-12914.006.patch, HDFS-12914.007.patch,
> HDFS-12914.008.patch, HDFS-12914.009.patch, HDFS-12914.branch-2.000.patch,
> HDFS-12914.branch-2.001.patch, HDFS-12914.branch-2.patch,
> HDFS-12914.branch-3.0.patch, HDFS-12914.branch-3.1.001.patch,
> HDFS-12914.branch-3.1.002.patch, HDFS-12914.branch-3.2.patch,
> HDFS-12914.utfix.patch
>
>
> {{BlockReportLeaseManager#checkLease}} will reject FBRs from DNs for
> conditions such as "unknown datanode", "not in pending set", "lease has
> expired", wrong lease id, etc. Lease rejection does not throw an exception.
> It returns false which bubbles up to {{NameNodeRpcServer#blockReport}} and
> interpreted as {{noStaleStorages}}.
> A re-registering node whose FBR is rejected from an invalid lease becomes
> active with _no blocks_. A replication storm ensues possibly causing DNs to
> temporarily go dead (HDFS-12645), leading to more FBR lease rejections on
> re-registration. The cluster will have many "missing blocks" until the DNs
> next FBR is sent and/or forced.
--
This message was sent by Atlassian JIRA
(v7.6.14#76016)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
