[
https://issues.apache.org/jira/browse/HDFS-17052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17738872#comment-17738872
]
ASF GitHub Bot commented on HDFS-17052:
---------------------------------------
Hexiaoqiao commented on code in PR #5759:
URL: https://github.com/apache/hadoop/pull/5759#discussion_r1247427463
##########
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/blockmanagement/BlockPlacementPolicyRackFaultTolerant.java:
##########
@@ -192,11 +192,23 @@ private void chooseEvenlyFromRemainingRacks(Node writer,
} finally {
excludedNodes.addAll(newExcludeNodes);
}
+ if (numResultsOflastChoose == results.size()) {
Review Comment:
It will be better to add some annotation here.
##########
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestReconstructStripedBlocks.java:
##########
@@ -515,4 +517,63 @@ public void testReconstrutionWithBusyBlock1() throws
Exception {
assertEquals(9, bm.countNodes(blockInfo).liveReplicas());
}
+ @Test
+ public void testReconstructionWithStorageTypeNotEnough() throws Exception {
+ final HdfsConfiguration conf = new HdfsConfiguration();
+ conf.setInt(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_INTERVAL_SECONDS_KEY, 1);
+
+ // nine disk node eleven archive node
Review Comment:
Please use a capital letter at the beginning of the sentences and period at
the end of annotation. (L525,L533,L556,L563)
> Erasure coding reconstruction failed when num of storageType rack NOT enough
> ----------------------------------------------------------------------------
>
> Key: HDFS-17052
> URL: https://issues.apache.org/jira/browse/HDFS-17052
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ec
> Affects Versions: 3.4.0
> Reporter: Hualong Zhang
> Assignee: Hualong Zhang
> Priority: Major
> Labels: pull-request-available
> Attachments: failed reconstruction ec in same rack-1.png, write ec in
> same rack.png
>
>
> When writing EC data, if the number of racks matching the storageType is
> insufficient, more than one block are allowed to be written to the same rack
> !write ec in same rack.png|width=962,height=604!
>
>
>
> However, during EC block recovery, it is not possible to recover on the same
> rack, which deviates from the expected behavior.
> !failed reconstruction ec in same rack-1.png|width=946,height=413!
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
