Brahma Reddy Battula created HDFS-3586:
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Summary: Blocks are not getting replicate even DN's are availble.
Key: HDFS-3586
URL: https://issues.apache.org/jira/browse/HDFS-3586
Project: Hadoop HDFS
Issue Type: Bug
Components: data-node, name-node
Affects Versions: 2.0.0-alpha, 2.0.1-alpha, 3.0.0
Reporter: Brahma Reddy Battula
Scenario:
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Started four DN's(Say DN1,DN2,DN3 and DN4)
writing files with RF=3..
formed pipeline with DN1->DN2->DN3.
Since DN3 network is very slow.it's not able to send acks.
Again pipeline is fromed with DN1->DN2->DN4.
Here DN4 network is also slow.
So finally commitblocksync happend tp DN1 and DN2 successfully.
block present in all the four DN's(finalized state in two DN's and rbw state in
another DN's)..
Here NN is asking replicate to DN3 and DN4,but it's failing since replcia's are
already present in RBW dir.
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