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[HDFS-4942] Add retry cache support in Namenode - HDFS - [issue]
...In current HA mechanism with FailoverProxyProvider and non HA setups with RetryProxy retry a request from the RPC layer. If the retried request has already been processed at the namenode, th...
http://issues.apache.org/jira/browse/HDFS-4942    Author: Suresh Srinivas, 2013-07-30, 05:21
[HDFS-4979] Implement retry cache on the namenode - HDFS - [issue]
http://issues.apache.org/jira/browse/HDFS-4979    Author: Suresh Srinivas, 2013-07-26, 23:41
[HDFS-4956] DistributedFileSystem does not handle CreateFlag.APPEND in create call - HDFS - [issue]
...Currently DistributedFileSystem does not handle CreateFlag.APPEND in the implementation of FileSystem#create() method. It only support OVERWRITE & CREATE or just CREATE....
http://issues.apache.org/jira/browse/HDFS-4956    Author: Suresh Srinivas, 2013-07-26, 11:35
[HDFS-4602] TestBookKeeperHACheckpoints fails - HDFS - [issue]
...See https://builds.apache.org/job/Hadoop-Hdfs-trunk/1344/Failed tests:   testStandbyExceptionThrownDuringCheckpoint(org.apache.hadoop.contrib.bkjournal.TestBookKeeperHACheckpoints): SBN...
http://issues.apache.org/jira/browse/HDFS-4602    Author: Suresh Srinivas, 2013-07-24, 15:12
[HDFS-4892] Number of transceivers reported by the datanode is incorrect - HDFS - [issue]
...Currently a datanode reports the transceiver count to namenode. Namenode aggregates this as TotalLoad metrics and is used for monitoring cluster activity. It is also used for making block pl...
http://issues.apache.org/jira/browse/HDFS-4892    Author: Suresh Srinivas, 2013-07-23, 03:22
[HDFS-5008] Make ClientProtocol#abandonBlock() idempotent - HDFS - [issue]
...Currently when abandonBlock is called, if the block does not exist, then the namenode throws an exception. I propose making it idempotent, by returning success if the block that is being aba...
http://issues.apache.org/jira/browse/HDFS-5008    Author: Suresh Srinivas, 2013-07-22, 19:31
Re: I'm interested in working with HDFS-4680. Can somebody be a mentor? - HDFS - [mail # dev]
...Please look at some of the work happening in HADOOP-9688, which is adding a unique UUID (16 bytes) for each RPC request. This is common to all Hadoop RPC, will be available in HDFS, YARN and...
   Author: Suresh Srinivas, 2013-07-18, 00:29
Re: Suggestions required for HDFS-4926 (namenode webserver's page has a tooltip that is inconsistent with the datanode HTML link) - HDFS - [mail # dev]
...Jira has these comments right. I do not see necessity for posting that again to hdfs-dev mailing list. Please continue the discussion in Jira.   Sent from phone  On Jul 15, 2013, a...
   Author: Suresh Srinivas, 2013-07-15, 15:56
[HDFS-4912] Cleanup FSNamesystem#startFileInternal - HDFS - [issue]
...FSNamesystem#startFileInternal is used by both create and append. This results in ugly if else conditions to consider append/create scenarios. This method can be refactored and the code can ...
http://issues.apache.org/jira/browse/HDFS-4912    Author: Suresh Srinivas, 2013-07-13, 15:08
[HDFS-4249] Add status NameNode startup to webUI - HDFS - [issue]
...Currently NameNode WebUI server starts only after the fsimage is loaded, edits are applied and checkpoint is complete. Any status related to namenode startin up is available only in the logs...
http://issues.apache.org/jira/browse/HDFS-4249    Author: Suresh Srinivas, 2013-07-12, 06:23
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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