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[HDFS-5189] Rename the "CorruptBlocks" metric to "CorruptReplicas" - HDFS - [issue]
...The NameNode increments a "CorruptBlocks" metric even if only one of the block'sreplicas is reported corrupt (genuine checksum fail, or even if areplica has a bad genstamp). In cases where t...
http://issues.apache.org/jira/browse/HDFS-5189    Author: Harsh J, 2014-07-29, 18:53
[HDFS-6766] optimize ack notify mechanism to avoid thundering herd issue - HDFS - [issue]
...Currently, DFSOutputStream uses wait/notifyAll to coordinate ack receiving and ack waiting, etc..say there're 5 threads(t1,t2,t3,t4,t5) wait for ack seq no: 1,2,3,4,5, once the no. 1 ack arr...
http://issues.apache.org/jira/browse/HDFS-6766    Author: Liang Xie, 2014-07-29, 18:20
[HDFS-6570] add api that enables checking if a user has certain permissions on a file - HDFS - [issue]
...For some of the authorization modes in Hive, the servers in Hive check if a given user has permissions on a certain file or directory. For example, the storage based authorization mode allow...
http://issues.apache.org/jira/browse/HDFS-6570    Author: Thejas M Nair, 2014-07-29, 17:39
[HDFS-6763] Standby NN stalls after processing edits - HDFS - [issue]
...FSImage#loadEdits calls updateCountForQuota to recalculate & verify quotas for the entire namespace.  A standby NN using shared edits calls this method every minute.  The stand...
http://issues.apache.org/jira/browse/HDFS-6763    Author: Daryn Sharp, 2014-07-29, 17:17
[HDFS-6764] DN heartbeats may become clumped together - HDFS - [issue]
...DNs send heartbeats on a fixed schedule based on the last time a heartbeat was sent.  If the NN takes longer to respond than the heartbeat interval then DNs do not sleep until the next ...
http://issues.apache.org/jira/browse/HDFS-6764    Author: Daryn Sharp, 2014-07-29, 17:00
[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, 2014-07-29, 16:48
[HDFS-6742] Support sorting datanode list on the new NN webUI - HDFS - [issue]
...The legacy webUI allows sorting datanode list based on specific column such as hostname. It is handy for admins can find pattern more quickly, especially for big clusters....
http://issues.apache.org/jira/browse/HDFS-6742    Author: Ming Ma, 2014-07-29, 16:44
[HDFS-6717] Jira HDFS-5804 breaks default nfs-gateway behavior for unsecured config - HDFS - [issue]
...I believe this is just a matter of needing to update documentation. As a result of https://issues.apache.org/jira/browse/HDFS-5804, the secure and unsecure code paths appear to have been mer...
http://issues.apache.org/jira/browse/HDFS-6717    Author: Jeff Hansen, 2014-07-29, 16:01
[HDFS-5804] HDFS NFS Gateway fails to mount and proxy when using Kerberos - HDFS - [issue]
...When using HDFS nfs gateway with secure hadoop (hadoop.security.authentication: kerberos), mounting hdfs fails. Additionally, there is no mechanism to support proxy user(nfs needs to proxy a...
http://issues.apache.org/jira/browse/HDFS-5804    Author: Abin Shahab, 2014-07-29, 16:00
[HDFS-6739] Add getDatanodeStorageReport to ClientProtocol - HDFS - [issue]
...ClientProtocol has a getDatanodeReport(..) methods for retrieving datanode report from namenode.  However, there is no way to get datanode storage report....
http://issues.apache.org/jira/browse/HDFS-6739    Author: Tsz Wo Nicholas Sze, 2014-07-29, 15:55
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