Wei-Chiu Chuang created HDFS-11018:
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Summary: Incorrect check and message in FsDatasetImpl#invalidate
Key: HDFS-11018
URL: https://issues.apache.org/jira/browse/HDFS-11018
Project: Hadoop HDFS
Issue Type: Bug
Components: datanode
Reporter: Wei-Chiu Chuang
The following error check and message is incorrect, because {{info}} is null if
(1) the block id does not exist in ReplicaMap or (2) the generation stamp of
block does not match the replica entry in ReplicaMap.
{code:title=FsDatasetImpl#invalidate}
final ReplicaInfo info = volumeMap.get(bpid, invalidBlks[i]);
if (info == null) {
// It is okay if the block is not found -- it may be deleted earlier.
LOG.info("Failed to delete replica " + invalidBlks[i]
+ ": ReplicaInfo not found.");
continue;
}
if (info.getGenerationStamp() != invalidBlks[i].getGenerationStamp()) {
errors.add("Failed to delete replica " + invalidBlks[i]
+ ": GenerationStamp not matched, info=" + info);
continue;
}
{code}
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