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Re: missing data blocks after active name node crashes - Hadoop - [mail # user]
...Hi Chen!From my understanding, every operation on the Namenode is logged (and flushed) to disk / QJM / shared storage. This includes the addBlock operation. So when a client requests to writ...
   Author: Ravi Prakash, 2015-02-10, 19:21
Re: Kill one node on map start - Hadoop - [mail # user]
...In unit tests MiniMRYarnCluster is used to do this kind of stuff.      On Friday, February 6, 2015 3:51 AM, Telles Nobrega  wrote:    Hi, I'm working ...
   Author: Ravi Prakash, 2015-02-09, 18:42
[HADOOP-11185] There should be a way to disable a kill -9 during stop - Hadoop - [issue]
...eg. hadoop-common-project/hadoop-common/bin/src/main/bin/hadoop-functions.sh calls kill -9 after some time. This might not be the best thing to do for some processes (if HA is not enabled) ....
http://issues.apache.org/jira/browse/HADOOP-11185    Author: Ravi Prakash, 2015-02-08, 18:35
Re: How I list files in HDFS? - Hadoop - [mail # user]
...Hi Xeon!Can you try using the FileContext or FileSystem API?HTHRavi      On Thursday, February 5, 2015 8:13 AM, xeonmailinglist  wrote:       Hi,...
   Author: Ravi Prakash, 2015-02-05, 19:53
Re: RM doesn't show which host is submitted job - Hadoop - [mail # user]
...Hi Nur!Thanks for your report. Please feel free to open a JIRA in the YARN project for this: https://issues.apache.org/jira/browse/YARNA patch would be great. Look at ClientRMService.submitA...
   Author: Ravi Prakash, 2015-02-05, 19:44
Re: How to debug why example not finishing (or even starting) - Hadoop - [mail # user]
...Do you have capacity on your cluster? Did you submit it to the right queue? Go to your scheduler page: http://YOUR-RESOURCE-MANAGER-HOSTNAME:8088/cluster/scheduler     On Thur...
   Author: Ravi Prakash, 2015-01-29, 20:02
Re: HDFS balancer ending with error - Hadoop - [mail # user]
...You can try running fsck.      On Thursday, January 29, 2015 6:34 AM, Juraj jiv  wrote:    Hello,I noticed our CDH5 cluster is not balanced and balanc...
   Author: Ravi Prakash, 2015-01-29, 20:01
[HADOOP-11516] Enable HTTP compression on all hadoop UIs - Hadoop - [issue]
...Some of our UI pages (e.g. # of jobs, # of task attempts, logs) are extremely big. It would drastically improve their load times if we used HTTP compression.There exists a GzipFilter for jet...
http://issues.apache.org/jira/browse/HADOOP-11516    Author: Ravi Prakash, 2015-01-29, 19:12
[expand - 1 more] - Re: Reliability of timestamps in logs - Hadoop - [mail # user]
...I'm afraid I don't know what the "SLS" is. Obviously it shouldn't matter if it runs on the same node. I don't think hadoop code ever updates the system clock. In fact it shouldn't even be ru...
   Author: Ravi Prakash, 2015-01-27, 22:08
Re: Patch review process - Hadoop - [mail # dev]
...Just out of left field: Since we already migrated to git (Thanks everyone for that effort) should we try using github's UI? Isn't that how the majority of the rest of the world started doing...
   Author: Ravi Prakash, 2015-01-27, 01:55
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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