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https://issues.apache.org/jira/browse/HDFS-1562?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13021662#comment-13021662
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Eli Collins commented on HDFS-1562:
-----------------------------------
The contrib test failures are unrelated. I think the javadoc warning is bogus,
here's what test-patch run with hdfs-1562-3.patch yields on my machine:
{noformat}
[exec]
[exec] +1 overall.
[exec]
[exec] +1 @author. The patch does not contain any @author tags.
[exec]
[exec] +1 tests included. The patch appears to include 49 new or
modified tests.
[exec]
[exec] +1 javadoc. The javadoc tool did not generate any warning
messages.
[exec]
[exec] +1 javac. The applied patch does not increase the total number
of javac compiler warnings.
[exec]
[exec] +1 findbugs. The patch does not introduce any new Findbugs
(version 1.3.9) warnings.
[exec]
[exec] +1 release audit. The applied patch does not increase the
total number of release audit warnings.
[exec]
[exec] +1 system test framework. The patch passed system test
framework compile.
[exec]
{noformat}
> Add rack policy tests
> ---------------------
>
> Key: HDFS-1562
> URL: https://issues.apache.org/jira/browse/HDFS-1562
> Project: Hadoop HDFS
> Issue Type: Test
> Components: name-node, test
> Affects Versions: 0.23.0
> Reporter: Eli Collins
> Assignee: Eli Collins
> Attachments: hdfs-1562-1.patch, hdfs-1562-2.patch, hdfs-1562-3.patch
>
>
> The existing replication tests (TestBlocksWithNotEnoughRacks,
> TestPendingReplication, TestOverReplicatedBlocks, TestReplicationPolicy,
> TestUnderReplicatedBlocks, and TestReplication) are missing tests for rack
> policy violations. This jira adds the following tests which I created when
> generating a new patch for HDFS-15.
> * Test that blocks that have a sufficient number of total replicas, but are
> not replicated cross rack, get replicated cross rack when a rack becomes
> available.
> * Test that new blocks for an underreplicated file will get replicated cross
> rack.
> * Mark a block as corrupt, test that when it is re-replicated that it is
> still replicated across racks.
> * Reduce the replication factor of a file, making sure that the only block
> that is across racks is not removed when deleting replicas.
> * Test that when a block is replicated because a replica is lost due to host
> failure the the rack policy is preserved.
> * Test that when the execss replicas of a block are reduced due to a node
> re-joining the cluster the rack policy is not violated.
> * Test that rack policy is still respected when blocks are replicated due to
> node decommissioning.
> * Test that rack policy is still respected when blocks are replicated due to
> node decommissioning, even when the blocks are over-replicated.
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