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https://issues.apache.org/jira/browse/HDFS-12914?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16877054#comment-16877054
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Weiwei Yang commented on HDFS-12914:
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Hi [~jojochuang]
It seems branch-3.0 build is broken after this commit.
{code}
[ERROR] Failed to execute goal
org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile
(default-testCompile) on project hadoop-hdfs: Compilation failure
[ERROR]
/Users/wyang/gitbox-hadoop/hadoop/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/blockmanagement/TestBlockReportLease.java:[100,46]
processReport(org.apache.hadoop.hdfs.server.blockmanagement.DatanodeStorageInfo,org.apache.hadoop.hdfs.protocol.BlockListAsLongs,org.apache.hadoop.hdfs.server.protocol.BlockReportContext)
has private access in
org.apache.hadoop.hdfs.server.blockmanagement.BlockManager
{code}
could you please take a look?
Thanks
> 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-12914.005.patch,
> HDFS-12914.006.patch, HDFS-12914.007.patch, HDFS-12914.008.patch,
> HDFS-12914.009.patch, HDFS-12914.branch-2.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.
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