Hu Liu, created HDFS-7284:
-----------------------------
Summary: Add more debug info to
BlockInfoUnderConstruction#setGenerationStampAndVerifyReplicas
Key: HDFS-7284
URL: https://issues.apache.org/jira/browse/HDFS-7284
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Affects Versions: 2.5.1
Reporter: Hu Liu,
When I was looking at some replica loss issue, I got the following info from log
{code}
2014-10-13 01:54:53,104 INFO BlockStateChange: BLOCK* Removing stale replica
from location x.x.x.x
{code}
I could just know that a replica is removed, but I don't know which block and
its timestamp. I need to know the id and timestamp of the block from the log
file.
So it's better to add more info including block id and timestamp to the code
snippet
{code}
for (ReplicaUnderConstruction r : replicas) {
if (genStamp != r.getGenerationStamp()) {
r.getExpectedLocation().removeBlock(this);
NameNode.blockStateChangeLog.info("BLOCK* Removing stale replica "
+ "from location: " + r.getExpectedLocation());
}
}
{code}
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