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[HDFS-6871] Improve NameNode performance when creating file   - HDFS - [issue]
...Creating file with overwrite flag will cause NN fall into flush edit logs and block other requests if the file exists.When we create a file with overwrite flag (default is true) in HDFS, NN ...
http://issues.apache.org/jira/browse/HDFS-6871    Author: Yi Liu, 2014-09-05, 03:41
[HDFS-6998] warning message 'ssl.client.truststore.location has not been set' gets printed for hftp command - HDFS - [issue]
...hftp command prints 'WARN ssl.FileBasedKeyStoresFactory: The property 'ssl.client.truststore.location' has not been set, no TrustStore will be loaded' in Windows unsecure environment. This i...
http://issues.apache.org/jira/browse/HDFS-6998    Author: Yesha Vora, 2014-09-05, 00:49
[HDFS-6848] Lack of synchronization on access to datanodeUuid in DataStorage#format() - HDFS - [issue]
...    this.datanodeUuid = datanodeUuid;The above assignment should be done holding lock "DataStorage.this" - as is done in two other places....
http://issues.apache.org/jira/browse/HDFS-6848    Author: Ted Yu, 2014-09-05, 00:22
[HDFS-6757] Simplify lease manager with INodeID - HDFS - [issue]
...Currently the lease manager records leases based on path instead of inode ids. Therefore, the lease manager needs to carefully keep track of the path of active leases during renames and dele...
http://issues.apache.org/jira/browse/HDFS-6757    Author: Haohui Mai, 2014-09-05, 00:19
[HDFS-6185] HDFS operational and debuggability improvements - HDFS - [issue]
...This umbrella jira proposes improvements in HDFS to make operations simpler and the system more robust. The areas of improvements includes - ensuring configuration is correct and follows the...
http://issues.apache.org/jira/browse/HDFS-6185    Author: Suresh Srinivas, 2014-09-05, 00:11
[HDFS-6961] Archival Storage: BlockPlacementPolicy#chooseTarget should check each valid storage type in each choosing round - HDFS - [issue]
...Currently in each choosing round of BlockPlacementPolicy#chooseTarget (e.g., round 1 for choosing local storage, round 2 for remote rack, etc.), we only take into account the first storage t...
http://issues.apache.org/jira/browse/HDFS-6961    Author: Jing Zhao, 2014-09-04, 22:23
[HDFS-6991] Notify NN of evicted block before deleting it from RAM disk - HDFS - [issue]
...When evicting a block from RAM disk to persistent storage, the DN should notify the NN of the persistent replica before deleting the replica from RAM disk. Else there can be a window of time...
http://issues.apache.org/jira/browse/HDFS-6991    Author: Arpit Agarwal, 2014-09-04, 21:28
[HDFS-6977] Delete all copies when a block is deleted from the block space - HDFS - [issue]
...When a block is deleted from RAM disk we should also delete the copies written to lazyPersist/.Reported by Xiaoyu Yao...
http://issues.apache.org/jira/browse/HDFS-6977    Author: Xiaoyu Yao, 2014-09-04, 20:59
[HDFS-6932] Balancer and Mover tools should ignore replicas on RAM_DISK - HDFS - [issue]
...Per title, balancer and mover should just ignore replicas on RAM disk instead of attempting to move them to other nodes....
http://issues.apache.org/jira/browse/HDFS-6932    Author: Arpit Agarwal, 2014-09-04, 20:02
[HDFS-6852] TestBalancerWithEncryptedTransfer sometimes fails in trunk - HDFS - [issue]
...From https://builds.apache.org/job/Hadoop-Hdfs-trunk/1837/ :REGRESSION:  org.apache.hadoop.hdfs.server.balancer.TestBalancerWithEncryptedTransfer.testEncryptedBalancer0Error Message:Reb...
http://issues.apache.org/jira/browse/HDFS-6852    Author: Ted Yu, 2014-09-04, 17:54
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