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[HDFS-7453] Namenode does not recognize block is missing on a datanode - HDFS - [issue]
...We got a severe datalose due to the fact that namenode didn't recognized block it thinks exist are not actually exist on the datanodes. The senario is something as follows: A disk fails on o...
http://issues.apache.org/jira/browse/HDFS-7453    Author: Dmitry Bugaychenko, 2014-11-27, 15:36
[HDFS-7310] Mover can give first priority to local DN if it has target storage type available in local DN - HDFS - [issue]
...Currently Mover logic may move blocks to any DN which had target storage type. But if the src DN has target storage type then mover can give highest priority to local DN. If local DN does no...
http://issues.apache.org/jira/browse/HDFS-7310    Author: Uma Maheswara Rao G, 2014-11-27, 15:29
[HDFS-7444] convertToBlockUnderConstruction should preserve BlockCollection - HDFS - [issue]
...BlockInfo#convertToBlockUnderConstruction converts a BlockInfo object to a BlockInfoUnderConstruction object. The callee instead of the caller should preserve the BlockCollection field....
http://issues.apache.org/jira/browse/HDFS-7444    Author: Haohui Mai, 2014-11-27, 15:29
[HDFS-6803] Documenting DFSClient#DFSInputStream expectations reading and preading in concurrent context - HDFS - [issue]
...Reviews of the patch posted the parent task suggest that we be more explicit about how DFSIS is expected to behave when being read by contending threads. It is also suggested that presumptio...
http://issues.apache.org/jira/browse/HDFS-6803    Author: stack, 2014-11-27, 14:26
[HDFS-7451] Namenode HA failover happens very frequently from active to standby - HDFS - [issue]
...We have two namenode having HA enabled. From last couple of days we are observing that the failover happens very frequently from active to standby mode. Below is the log details of the activ...
http://issues.apache.org/jira/browse/HDFS-7451    Author: LAXMAN KUMAR SAHOO, 2014-11-27, 09:52
[HDFS-5098] Enhance FileSystem.Statistics to have locality information - HDFS - [issue]
...Currently in MR/Tez we dont have a good and accurate means to detect how much the the IO was actually done locally. Getting this information from the source of truth would be much better....
http://issues.apache.org/jira/browse/HDFS-5098    Author: Bikas Saha, 2014-11-27, 05:50
[HDFS-7342] Lease Recovery doesn't happen some times - HDFS - [issue]
...In some cases, LeaseManager tries to recover a lease, but is not able to. HDFS-4882 describes a possibility of that. We should fix this...
http://issues.apache.org/jira/browse/HDFS-7342    Author: Ravi Prakash, 2014-11-26, 20:19
[HDFS-7097] Allow block reports to be processed during checkpointing on standby name node - HDFS - [issue]
...On a reasonably busy HDFS cluster, there are stream of creates, causing data nodes to generate incremental block reports.  When a standby name node is checkpointing, RPC handler threads...
http://issues.apache.org/jira/browse/HDFS-7097    Author: Kihwal Lee, 2014-11-26, 16:56
[HDFS-7440] Consolidate snapshot related operations in a single class - HDFS - [issue]
...Currently the snapshot-related code scatters across both FSNameSystem and FSDirectory. This jira proposes to consolidate the logic in a single class....
http://issues.apache.org/jira/browse/HDFS-7440    Author: Haohui Mai, 2014-11-26, 15:29
[HDFS-6133] Make Balancer support exclude specified path - HDFS - [issue]
...Currently, run Balancer will destroying Regionserver's data locality.If getBlocks could exclude blocks belongs to files which have specific path prefix, like "/hbase", then we can run Balanc...
http://issues.apache.org/jira/browse/HDFS-6133    Author: zhaoyunjiong, 2014-11-26, 10:03
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB