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HDFS-15644. Failed volumes can cause DNs to stop block reporting. Contributed by Ahmed Hussein.

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(cherry picked from commit 74634eb002)
This commit is contained in:
Wei-Chiu Chuang 2020-10-23 12:05:53 -07:00
parent c55d639e8f
commit c8eb86ee3d
1 changed files with 21 additions and 17 deletions
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38
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/FsDatasetImpl.java
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@ -1901,28 +1901,32 @@ public Map<DatanodeStorage, BlockListAsLongs> getBlockReports(String bpid) {
continue;
}
String volStorageID = b.getVolume().getStorageID();
if (!builders.containsKey(volStorageID)) {
switch(b.getState()) {
case FINALIZED:
case RBW:
case RWR:
break;
case RUR:
// use the original replica.
b = b.getOriginalReplica();
break;
case TEMPORARY:
continue;
default:
assert false : "Illegal ReplicaInfo state.";
continue;
}
BlockListAsLongs.Builder storageBuilder = builders.get(volStorageID);
// a storage in the process of failing will not be in the volumes list
// but will be in the replica map.
if (storageBuilder != null) {
storageBuilder.add(b);
} else {
if (!missingVolumesReported.contains(volStorageID)) {
LOG.warn("Storage volume: " + volStorageID + " missing for the"
+ " replica block: " + b + ". Probably being removed!");
missingVolumesReported.add(volStorageID);
}
continue;
}
switch(b.getState()) {
case FINALIZED:
case RBW:
case RWR:
builders.get(volStorageID).add(b);
break;
case RUR:
ReplicaInfo orig = b.getOriginalReplica();
builders.get(volStorageID).add(orig);
break;
case TEMPORARY:
break;
default:
assert false : "Illegal ReplicaInfo state.";
}
}
}