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[expand - 1 more] - Re: Load Balancing sink group not working - Flume - [mail # user]
...Looking further into jstack, it looks like in the default configuration (without sink groups), there is a thread per sink, while there is only one thread when using the sink group which woul...
   Author: Rahul Ravindran, 2015-04-16, 22:31
[expand - 1 more] - Re: Determining regions with low HDFS locality index - HBase - [mail # user]
...Thanks for the response Lars.My question is not related to cluster or master startup as much as in a running cluster. My scenario is more about - in a running cluster, if a machine goes down...
   Author: Rahul Ravindran, 2014-12-27, 08:19
[FLUME-2394] Command line argument to disable monitoring for config changes - Flume - [issue]
...Flume monitors for changes to the config file and attempts to re-initialize source/sinks/channels based on detected changes. However, this does not work for all config values, and also in un...
http://issues.apache.org/jira/browse/FLUME-2394    Author: Rahul Ravindran, 2014-10-29, 09:37
[FLUME-2395] Flume does not shutdown cleanly on sending a term signal when it is receiving events - Flume - [issue]
...Running flume with avrosource, file channel, avro sinkGenerated a reasonably high load where flume is receiving avro events via the avro source.Now, send a kill <flume pid>. Flume does...
http://issues.apache.org/jira/browse/FLUME-2395    Author: Rahul Ravindran, 2014-06-10, 00:58
Error when reading parquet file - Drill - [mail # user]
...Hello,  I created a parquet file our of MR and attempted to use Drill to query the file.select * from "/tmp/part-00.parquet". . . . . . . . . . . . . . . . . > ;SLF4J: Failed to load clas...
   Author: Rahul Ravindran, 2014-05-01, 11:46
Experience with HBASE-8283 and lots of small hfile - HBase - [mail # user]
...Hi,   We are currently on 0.94.2(CDH 4.2.1) and would likely upgrade to 0.94.15 (CDH 4.6) primarily to use the above fix. We have turned off automatic major compactions. We load data into an...
   Author: Rahul Ravindran, 2014-04-04, 03:42
[expand - 1 more] - Re: Flume error in FIleChannel - Flume - [mail # user]
...There was no disk space issue and we ran fsck on the disks and did not find any file corruption issue. Did not see anything weird at that point in time either   ________________________...
   Author: Rahul Ravindran, 2013-06-27, 20:34
Downside of too many HFiles - HBase - [mail # user]
...Hello, I am trying to understand the downsides of having a large number of hfiles by having a large hbase.hstore.compactionThreshold    This delays major compaction. However, the amount...
   Author: Rahul Ravindran, 2013-06-12, 15:14
[expand - 3 more] - Re: Scan + Gets are disk bound - HBase - [mail # user]
...Thanks for the approach you suggested Asaf. This is definitely very promising. Our use case is that, we have a raw stream of events which may have duplicates. After our HBase + MR processing...
   Author: Rahul Ravindran, 2013-06-05, 06:15
Flume 1.4 release - Flume - [mail # user]
...Hi,   Is there a rough estimate on when 1.4 may be shipped? We were primarily looking for https://issues.apache.org/jira/browse/FLUME-997 and perhaps, looking to port that to 1.3.1 or use 1....
   Author: Rahul Ravindran, 2013-05-21, 17:49
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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