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[HDFS-166] NameNode#invalidateBlock's requirement on more than 1 valid replica exists before scheduling a replica to delete is too strict
...Currently invalideBlock does not allow to delete a replica only if at least two valid replicas exist before deletion is scheduled. This is too restrictive if the replica to delete is a corru...
, 2014-07-21, 18:35
[HDFS-48] NN should check a block's length even if the block is not a new block when processing a blockreport
...If the block length does not match the one in the blockMap, we should mark the block as corrupted. This could help clearing the polluted replicas caused by HADOOP-4810 and also help detect t...
, 2014-07-21, 18:13
[HDFS-365] IPC server should not hold a client's response queue lock while writing response back to a client
...Currently the IPC server holds a client's response queue lock while writing response back to a client. This unnecessary held lock prevents handlers from queuing a reply to the response queue...
, 2014-07-18, 21:54
[HDFS-32] testFilePermissions in TestDFSShell should shut down the mini dfs cluster when there is an error
...The unit test testFilePermissions only shuts down the cluster when there is no exception thrown. Should do so in a "finally" statement so the cluster gets shut down when there is an exceptio...
, 2014-07-17, 20:41
[HDFS-1766] Datanode is marked dead, but datanode process is alive and verifying blocks
...We have a datanode marked dead in the namenode, and it is not taking any traffic. But it is verifying blocks continuously, so the DataNode process is definitely not dead. Jstack shows that t...
, 2014-04-03, 03:29
[HDFS-372] DataNode should reuse delBlockFromDisk
...FSDataSet should reuse delBlcokFromDisk where it should/can be used like in invalidateBlock....
, 2014-02-04, 00:46
[HDFS-2362] More Improvements on NameNode Scalability
...This jira acts as an umbrella jira to track all the improvements we've done recently to improve Namenode's performance, responsiveness, and hence scalability. Those improvements include:1. I...
, 2014-01-10, 00:38
[HDFS-1016] HDFS side change for HADOOP-6569
...1. TestCLI configuration file should be modified.2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist....
, 2013-08-14, 05:54
[HDFS-1658] A less expensive way to figure out directory size
...Currently in order to figure out a directory size, we have to list a directory by calling RPC getListing and get the number of its children. This is an expensive operation especially when a ...
, 2013-07-15, 22:32
[HDFS-3370] HDFS hardlink
...We'd like to add a new feature hardlink to HDFS that allows harlinked files to share data without copying. Currently we will support hardlinking only closed files, but it could be extended t...
, 2013-05-14, 17:54
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