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[HDFS-8150] Make getFileChecksum fail for blocks under construction
...We have seen the cases of validating data copy using checksum then the content of target changing. It turns out the target wasn't closed successfully, so it was still under-construction. &nb...
, 2015-05-14, 16:48
[HDFS-8395] Verify on-disk data after transferring block data
...Currently the integrity of on-disk data is not checked during pipeline recovery or replication. The target in the pipeline-recovery-transfer can detect a corruption, but sometimes it is dete...
, 2015-05-13, 23:34
[HDFS-8315] Datanode does not log reads
...HDFS-6836 made datanode read request logging DEBUG. There is a good reason why it was at INFO for so many years. This is very useful in debugging load issues. This jira will reve...
, 2015-05-08, 16:22
[HDFS-6191] Disable quota checks when replaying edit log.
...Since the serving NN does quota checks before logging edits, performing quota checks is unnecessary while replaying edits. I propose disabling quota checks for 2NN and SBN....
, 2015-04-23, 18:31
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Re: [VOTE] Release Apache Hadoop 2.7.0 RC0
- [mail # dev]
...+1 (binding)Built the source from the tag and ran basic test on pseudo distributed cluster.Kihwal From: Vinod Kumar Vavilapalli To: [EMAIL PROTECTED]; [EMAIL PROTEC...
, 2015-04-15, 20:12
Re: [VOTE] Release Apache Hadoop 2.7.2 RC0
- [mail # dev]
...We found HDFS-9426. The rolling upgrade finalization is not backward compatible.I.e. 2.7.1 or 2.6.x datanodes will ignore finalization.So -1.Kihwal From: Vinod Kumar Vavi...
, 2015-11-13, 16:08
[HDFS-3087] Decomissioning on NN restart can complete without blocks being replicated
...If a data node is added to the exclude list and the name node is restarted, the decomissioning happens right away on the data node registration. At this point the initial block report has no...
, 2015-04-09, 12:56
Re: [Federation setup] Adding a new name node to federated cluster
- [mail # dev]
...You might be issuing the refresh command against the dataXfer port, not the rpc port of the datanode.-Kihwal From: Ajith shetty To: "[EMAIL PROTECTED]" ...
, 2015-04-02, 16:32
[HDFS-5796] The file system browser in the namenode UI requires SPNEGO.
...After HDFS-5382, the browser makes webhdfs REST calls directly, requiring SPNEGO to work between user's browser and namenode. This won't work if the cluster's security infrastructure i...
, 2015-03-30, 21:50
[HDFS-6599] 2.4 addBlock is 10 to 20 times slower compared to 0.23
...From one of our busiest 0.23 clusters:"AddBlockAvgTime" : 0.9514711501719515"CreateAvgTime" : 1.7564162389174"CompleteAvgTime" : 1.3310406035056548"BlockReceivedAndDeletedAvgTime" : 0.661210...
, 2015-03-20, 18:19
[HDFS-7932] Speed up the shutdown of datanode during rolling upgrade
...Datanode normally exits in 3 seconds after receiving shutdownDatanode command. However, sometimes it doesn't, especially when the IO is busy....
, 2015-03-20, 15:27
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