hfutatzhanghb commented on code in PR #6509:
URL: https://github.com/apache/hadoop/pull/6509#discussion_r1498576377
##########
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockRecoveryWorker.java:
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@@ -436,9 +442,17 @@ protected void recover() throws IOException {
"datanode={})", block, internalBlk, id, e);
}
}
- checkLocations(syncBlocks.size());
- final long safeLength = getSafeLength(syncBlocks);
+ final long safeLength;
+ if (dnNotHaveReplicaCnt + zeroLenReplicaCnt <= locs.length -
ecPolicy.getNumDataUnits()) {
+ checkLocations(syncBlocks.size());
+ safeLength = getSafeLength(syncBlocks);
+ } else {
+ safeLength = 0;
+ LOG.warn("Block recovery: More than {} datanodes do not have the
replica of block {}." +
Review Comment:
Fixed it. Thanks sir.
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