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https://issues.apache.org/jira/browse/HDFS-17401?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17825934#comment-17825934
]
ASF GitHub Bot commented on HDFS-17401:
---------------------------------------
haiyang1987 commented on code in PR #6597:
URL: https://github.com/apache/hadoop/pull/6597#discussion_r1522666775
##########
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestReconstructStripedBlocks.java:
##########
@@ -575,5 +576,80 @@ public void testReconstructionWithStorageTypeNotEnough()
throws Exception {
cluster.shutdown();
}
}
+ @Test
+ public void testDeleteOverReplicatedStripedBlock() throws Exception {
+ final HdfsConfiguration conf = new HdfsConfiguration();
+ conf.setInt(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_INTERVAL_SECONDS_KEY, 1);
+ conf.setBoolean(DFSConfigKeys.DFS_NAMENODE_REDUNDANCY_CONSIDERLOAD_KEY,
+ false);
+ StorageType[][] st = new StorageType[groupSize + 2][1];
+ for (int i = 0; i < st.length-1; i++){
+ st[i] = new StorageType[]{StorageType.SSD};
+ }
+ st[st.length -1] = new StorageType[]{StorageType.DISK};
+
+ cluster = new MiniDFSCluster.Builder(conf).numDataNodes(groupSize + 2)
+ .storagesPerDatanode(1)
+ .storageTypes(st)
+ .build();
+ cluster.waitActive();
+ DistributedFileSystem fs = cluster.getFileSystem();
+ fs.enableErasureCodingPolicy(
+ StripedFileTestUtil.getDefaultECPolicy().getName());
+ try {
+ fs.mkdirs(dirPath);
+ fs.setErasureCodingPolicy(dirPath,
+ StripedFileTestUtil.getDefaultECPolicy().getName());
+ fs.setStoragePolicy(dirPath, HdfsConstants.ALLSSD_STORAGE_POLICY_NAME);
+ DFSTestUtil.createFile(fs, filePath,
+ cellSize * dataBlocks * 2, (short) 1, 0L);
+ // Stop a dn
+ LocatedBlocks blks =
fs.getClient().getLocatedBlocks(filePath.toString(), 0);
+ LocatedStripedBlock block = (LocatedStripedBlock)
blks.getLastLocatedBlock();
+ DatanodeInfo dnToStop = block.getLocations()[0];
+
+ MiniDFSCluster.DataNodeProperties dnProp =
+ cluster.stopDataNode(dnToStop.getXferAddr());
+ cluster.stopDataNode(dnToStop.getXferAddr());
Review Comment:
here repeated, need remove.
> EC: Excess internal block may not be able to be deleted correctly when it's
> stored in fallback storage
> ------------------------------------------------------------------------------------------------------
>
> Key: HDFS-17401
> URL: https://issues.apache.org/jira/browse/HDFS-17401
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 3.3.6
> Reporter: Ruinan Gu
> Assignee: Ruinan Gu
> Priority: Major
> Labels: pull-request-available
>
> Excess internal block can't be deleted correctly when it's stored in fallback
> storage.
> Simple case:
> EC-RS-6-3-1024k file is stored using ALL_SSD storage policy(SSD is default
> storage type and DISK is fallback storage type), if the block group is as
> follows
> [0(SSD), 0(SSD), 1(SSD), 2(SSD), 3(SSD), 4(SSD), 5(SSD), 6(SSD), 7(SSD),
> 8(DISK)]
> The are two index 0 internal block and one of them should be chosen to
> delete.But the current implement chooses the index 0 internal blocks as
> candidates but DISK as exess storage type.As a result, the exess storage
> type(DISK) can not correspond to the exess internal blocks' storage type(SSD)
> correctly, and the exess internal block can not be deleted correctly.
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