Vinod Kumar Vavilapalli
Arun C Murthy
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[MAPREDUCE-2178] Race condition in LinuxTaskController permissions handling
...The linux-task-controller executable currently traverses a directory heirarchy and calls chown/chmod on the files inside. There is a race condition here which can be exploited by an attacker...
, 2012-06-05, 13:53
[MAPREDUCE-2224] Synchronization bugs in JvmManager
...JvmManager.JvmManagerForType has several HashMap members that are inconsistently synchronized. I've seen sporadic NPEs in the 0.20 version of this code which has similar bugs....
, 2012-06-05, 07:25
[MAPREDUCE-3947] yarn.app.mapreduce.am.resource.mb not documented
...This configuration is useful but doesn't appear to be documented anywhere....
, 2012-05-23, 20:28
[MAPREDUCE-4132] Add docs for NameNode initializeSharedEdits and bootstrapStandby commands
...We've made the HA setup easier by adding new flags to the namenode to automatically set up the standby. But, we didn't document them yet. We should amend the HDFSHighAvailability.apt.vm docs...
, 2012-04-10, 19:44
[MAPREDUCE-4103] Fix HA docs for changes to shell command fencer args
...HADOOP-8007 changes the way in which shell command fencers are invoked. For whatever reason, the docs live in the MR tree. This JIRA is to update the docs....
, 2012-04-06, 13:58
[MAPREDUCE-3864] Fix cluster setup docs for correct SNN HTTPS parameters
...Currently the docs reference dfs.namenode.secondary.https-address, which does not exist. Instead it should reference dfs.namenode.secondary.https-port (new name of dfs.secondary.https.port a...
, 2012-03-28, 09:12
[MAPREDUCE-3546] slf4j versions mismatched between yarn and hdfs
...Running a cluster on trunk, I ran into an issue caused by the differing slf4j versions between YARN and HDFS. YARN is currently using 1.6.1 whereas HDFS is using 1.5.11. Unclear whether we s...
, 2012-03-23, 20:03
[MAPREDUCE-2294] Mumak won't compile in MR trunk
...HADOOP-6904 added a required getProtocolSignature() method for protocols, but the mock JT in Mumak doesn't implement this. So, MR trunk is currently failing....
, 2012-03-12, 05:51
[MAPREDUCE-3948] proxy throws UnknownHostException when following link shortly after job submission
...I submitted a job and then clicked on the link from the console quickly, before the job began to run. I saw the following exception:java.net.UnknownHostException: N... &n...
, 2012-03-06, 16:37
[MAPREDUCE-2592] TT should fail task immediately if userlog dir cannot be created
...Currently, TaskRunner will log the message "mkdirs failed. Ignoring" if it fails to mkdir the userlog directory for a task. Then, it goes on to spawn taskjvm.sh which tries to redirect outpu...
, 2012-02-11, 17:51
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