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RE: I am curious how to find hbase replication lag - HBase - [mail # user]
...Just simple canary probe approach  Update cluster1:t1:canary_row with a current time every (say) 1 sec Read time from cluster2:t1:canary_row every second  Compute the difference &n...
   Author: Vladimir Rodionov, 2013-08-19, 21:00
RE: issue about rowkey design - HBase - [mail # user]
...Secondary index requires multiple random seeks and is not efficient in many cases. What you need is different row_keys (one for each request type)  user_id, session_id, visit_time =>...
   Author: Vladimir Rodionov, 2013-08-19, 02:21
[expand - 2 more] - Re: [ANNOUNCE] Secondary Index in HBase - from Huawei - HBase - [mail # dev]
...Michael, JOIN is not supported in Phoenix for very obvious reasons and will probably never be (may be except of JOIN against replicated tables) .   On Wed, Aug 14, 2013 at 1:52 PM, Andr...
   Author: Vladimir Rodionov, 2013-08-14, 21:04
[expand - 14 more] - Re: HBase read perfomnance and HBase client - HBase - [mail # dev]
...Micheal, network is not a bottleneck as since raw KV size is 62 bytes. 1GbE can pump > 1 M per sec of these objects.  block cache is enabled, size ~ 2GB, query data set is less than ...
   Author: Vladimir Rodionov, 2013-08-01, 20:25
[expand - 1 more] - RE: Wrong RPS stats? - HBase - [mail # dev]
...Nope, I am doing simple table.get(get) - not a batch request  Best regards, Vladimir Rodionov Principal Platform Engineer Carrier IQ, www.carrieriq.com e-mail: [EMAIL PROTECTED]  _...
   Author: Vladimir Rodionov, 2013-07-29, 21:49
[expand - 5 more] - RE: MAX_FILESIZE and hbase.hregion.max.filesize are both 10Gb - HBase - [mail # dev]
...We have 20 RS and table was initially pre-split into 20 regions.   Best regards, Vladimir Rodionov Principal Platform Engineer Carrier IQ, www.carrieriq.com e-mail: [EMAIL PROTECTED] &n...
   Author: Vladimir Rodionov, 2013-07-29, 17:26
[expand - 4 more] - RE: Master aborts on start up - URGENT - HBase - [mail # dev]
...OK, that was my issue.   All RS failed to create table because we do not have SNAPPY support.  RS fail to create table, but Master should not abort in this case.   Best regard...
   Author: Vladimir Rodionov, 2013-07-28, 01:33
[expand - 3 more] - RE: Couple notes and questions on RegionObserver's - HBase - [mail # dev]
...Lars, I know that coprocessors are per region, I just do not understand why:  see all my 5 questions in my previous e-mails.  Best regards, Vladimir Rodionov Principal Platform Eng...
   Author: Vladimir Rodionov, 2013-07-25, 05:19
[expand - 4 more] - RE: Smarter Region assignment policy? - HBase - [mail # dev]
...Looks like an easy patch? Any rationals behind this decisions (not to retain region locations)?  Best regards, Vladimir Rodionov Principal Platform Engineer Carrier IQ, www.carrieriq.co...
   Author: Vladimir Rodionov, 2013-07-23, 17:39
[expand - 4 more] - RE: does append delete all cell versions except the last one? - HBase - [mail # dev]
...Thanks, this is what I thought.  Best regards, Vladimir Rodionov Principal Platform Engineer Carrier IQ, www.carrieriq.com e-mail: [EMAIL PROTECTED]  ______________________________...
   Author: Vladimir Rodionov, 2013-07-23, 03:31
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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