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[HDFS-7839] Erasure coding: implement facilities in NameNode to create and manage EC zones - HDFS - [issue]
...As a quick first step to facilitate initial development and testing, HDFS-7347 added EC configuration in file header as one storage policy. We have discussed and concluded  that EC conf...
http://issues.apache.org/jira/browse/HDFS-7839    Author: Zhe Zhang, 2015-02-27, 22:53
[expand - 1 more] - Re: DISCUSSION: Patch commit criteria. - HDFS - [mail # dev]
...I have the same interpretation as Konst on this. +1 from at least onecommitter other than the author, no -1s.I don't think there should be an exclusion for trivial patches, since thedefiniti...
   Author: Andrew Wang, 2015-02-27, 22:28
[HDFS-7749] Erasure Coding: Add striped block support in INodeFile - HDFS - [issue]
...This jira plan to add a new INodeFile feature to store the stripped blocks information in case that the INodeFile is erasure coded....
http://issues.apache.org/jira/browse/HDFS-7749    Author: Jing Zhao, 2015-02-27, 21:22
[HDFS-6411] nfs-hdfs-gateway mount raises I/O error and hangs when a unauthorized user attempts to access it - HDFS - [issue]
...We use the nfs-hdfs gateway to expose hdfs thru nfs.0) login as root, run nfs-hdfs gateway as a user, say, nfsserver. [root@zhongyi-test-cluster-desktop hdfs]# ls /hdfsbackups  ...
http://issues.apache.org/jira/browse/HDFS-6411    Author: Zhongyi Xie, 2015-02-27, 21:15
[HDFS-6445] NFS: Add a log message 'Permission denied' while writing data from read only mountpoint - HDFS - [issue]
...Add a log message in NFS log file when a write operation is performed on read only mount pointsteps:1) set dfs.nfs.exports.allowed.hosts = <nfsclient> ro2) Restart nfs server3) Append ...
http://issues.apache.org/jira/browse/HDFS-6445    Author: Yesha Vora, 2015-02-27, 21:15
[HDFS-6446] NFS: Different error messages for appending/writing data from read only mount - HDFS - [issue]
...steps:1) set dfs.nfs.exports.allowed.hosts = <nfs_client> ro2) Restart nfs server3) Append data on file present on hdfs from read only mount pointAppend databash$ cat /tmp/tmp_10MB.txt...
http://issues.apache.org/jira/browse/HDFS-6446    Author: Yesha Vora, 2015-02-27, 19:33
[HDFS-7857] Incomplete information in WARN message caused user confusion - HDFS - [issue]
...Lots of the following messages appeared in NN log:2014-12-10 12:18:15,728 WARN SecurityLogger.org.apache.hadoop.ipc.Server: Auth failed for <ipAddress>:39838:null (DIGEST-MD5: IO error...
http://issues.apache.org/jira/browse/HDFS-7857    Author: Yongjun Zhang, 2015-02-27, 18:49
[HDFS-5322] HDFS delegation token not found in cache errors seen on secure HA clusters - HDFS - [issue]
...While running HA tests we have seen issues were we see HDFS delegation token not found in cache errors causing jobs running to fail.at org.apache.hadoop.security.UserGroupInformation.doAs(Us...
http://issues.apache.org/jira/browse/HDFS-5322    Author: Arpit Gupta, 2015-02-27, 18:46
[HDFS-6658] Namenode memory optimization - Block replicas list - HDFS - [issue]
...Part of the memory consumed by every BlockInfo object in the Namenode is a linked list of block references for every DatanodeStorageInfo (called "triplets"). We propose to change the way we ...
http://issues.apache.org/jira/browse/HDFS-6658    Author: Amir Langer, 2015-02-27, 18:10
[HDFS-7439] Add BlockOpResponseProto's message to DFSClient's exception message - HDFS - [issue]
...When (BlockOpResponseProto#getStatus() != SUCCESS), it helps with debugging if DFSClient can add BlockOpResponseProto's message to the exception message applications will get. For example, i...
http://issues.apache.org/jira/browse/HDFS-7439    Author: Ming Ma, 2015-02-27, 16:09
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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