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[expand - 1 more] - Re: Server-side tracing in HBase (or how deep the tracing is) - HBase - [mail # user]
...In my traces, I did not see any traces from client to either master orregionserver. I have tried both deployment, pseudo-distributed on onemachine, and full-distributed on three machines (on...
   Author: yun peng, 2014-08-14, 06:05
[expand - 2 more] - Re: build hbase runtime from src - HBase - [mail # user]
...Yes, I missed that place. It works greatly, and thanks.On Sat, Aug 9, 2014 at 10:20 AM, Ted Yu  wrote:Best,Yun ...
   Author: yun peng, 2014-08-09, 14:42
[expand - 1 more] - Re: How to turn on tracing on HBase? - HBase - [mail # user]
...I have followed the hbase book (http://hbase.apache.org/book.html#tracing)to use LocalFileSpanReceiver to capture all the traces. But after runningthe program, it did not capture the traces....
   Author: yun peng, 2014-08-09, 13:35
Where can I find hbase-0.99-SNAPSHOT (binary) - HBase - [mail # user]
...Hi,I need the HBase-0.99-SNAPSHOT, more specifically the following two jars,because of an open-source project depends on them. org.apache.hbase:hbase-testing-util:jar:0.99.0-SNAPSHOT&nb...
   Author: yun peng, 2014-07-24, 22:08
Could it improve read performance by storing HFile consecutive on disk? - HBase - [mail # user]
...In our use case memory/cache is small, and we want to improve read/load (from-disk) performance by storing HFile blocks consecutively on disk... The idea is that if we store blocks more clos...
   Author: yun peng, 2013-07-09, 15:49
Any mechanism in Hadoop to run in background - HBase - [mail # user]
...Hi, All... We have a user case intended to run Mapreduce in background, while the server serves online operations. The MapReduce job may have lower priority comparing to the online jobs.. &n...
   Author: yun peng, 2013-06-22, 14:55
[expand - 2 more] - Re: difference between major and minor compactions? - HBase - [mail # user]
...I am more concerned with CompactionPolicy available that allows application to manipulate a bit how compaction should go... It looks like  there is newest API in .97 version *ExploringC...
   Author: yun peng, 2013-06-22, 14:35
[expand - 5 more] - Re: Possibility of using timestamp as row key in HBase - HBase - [mail # user]
...Thanks Asaf and Anoop.  You are right, data in Memstore is already sorted so flush() would not block too much with current write stream to another Memstore...  But wait,,,, flush()...
   Author: yun peng, 2013-06-21, 15:38
[expand - 1 more] - Re: Hbase write stream blocking and any solutions? - HBase - [mail # user]
...thanks lars for the insights. I guess current hbase may have to block write stream even when data write rate does not reach the limit of IO subsystems. Blocking happen because of the compact...
   Author: yun peng, 2013-06-10, 02:17
[expand - 1 more] - Re: How does BlockCache find relevant Blocks? - HBase - [mail # user]
...Thanks for the clarification, and I am interested in knowing a bit deep...  So how does hbase maintains which block is in memory and which is not. is there an extra level of index (like...
   Author: yun peng, 2013-05-29, 12:07
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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