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[PHOENIX-914] Native HBase timestamp support to optimize date range queries in Phoenix - Phoenix - [issue]
...For many applications one of the column of a table can be (and must be) naturally mapped to HBase timestamp. What it gives us is the optimization on StoreScanner where HFiles with timestamps...
http://issues.apache.org/jira/browse/PHOENIX-914    Author: Vladimir Rodionov, 2014-10-11, 19:35
[expand - 2 more] - Re: Compactions nice to have features - HBase - [mail # dev]
...I have been playing with out-of-process compaction currently. I will postmy results (and patch) when it is ready. The compaction in HBase is thearea of a multitude of possible improvements.-...
   Author: Vladimir Rodionov, 2014-10-10, 16:23
[expand - 1 more] - Re: The 3rd hbase 0.94.24 release candidate is available for download - HBase - [mail # dev]
...2?Can you check sequential scan as well? Make sure data is in the block cache.-Vladimir RodionovOn Thu, Oct 2, 2014 at 10:28 AM, Jean-Marc Spaggiari <[EMAIL PROTECTED]> wrote: ...
   Author: Vladimir Rodionov, 2014-10-02, 18:10
Re: Spark And Mapr - Spark - [mail # user]
...There is doc on MapR:http://doc.mapr.com/display/MapR/Accessing+MapR-FS+in+Java+Applications-Vladimir RodionovOn Wed, Oct 1, 2014 at 3:00 PM, Addanki, Santosh Kumar <[EMAIL PROTECTED]>...
   Author: Vladimir Rodionov, 2014-10-01, 22:59
[expand - 2 more] - Re: Reading from HBase is too slow - Spark - [mail # user]
...Yes, its in 0.98. CDH is free (w/o subscription) and sometimes its worthupgrading to the latest version (which is 0.98 based).-Vladimir RodionovOn Wed, Oct 1, 2014 at 9:52 AM, Ted Yu  w...
   Author: Vladimir Rodionov, 2014-10-01, 16:59
[expand - 1 more] - Re: Could you please stop breaking API compatibility? - HBase - [mail # dev]
...Yes, sureI just forgot that master is 2.0.-Vladimir RodionovOn Mon, Sep 29, 2014 at 9:09 PM, Anoop John  wrote: ...
   Author: Vladimir Rodionov, 2014-09-30, 04:23
[expand - 5 more] - Re: HBase reads, isolation levels and RegionScanner internal locking - HBase - [mail # dev]
...All row mutate operations in HBase are atomic: puts/deletes/increments/appends.Atomicity in HBase has the same meaning as in RDBMs exactly - operationscompletes as a whole or does not at all...
   Author: Vladimir Rodionov, 2014-09-12, 20:21
Spark caching questions - Spark - [mail # user]
...Hi, users1. Disk based cache eviction policy? The same LRU?2. What is the scope of a cached RDD? Does it survive application? Whathappen if I run Java app next time? Will RRD be created or r...
   Author: Vladimir Rodionov, 2014-09-09, 23:14
[HBASE-11898] CoprocessorHost.Environment should cache class loader instance - HBase - [issue]
...HBASE-9941 fix causes additional overhead... It looks like for every invocation it does a getClassLoader call....
http://issues.apache.org/jira/browse/HBASE-11898    Author: Vladimir Rodionov, 2014-09-05, 20:53
[HBASE-11854] MetricsRegion.updateScanNext takes 20% of overall RegionScannerImpl.nextRaw call - HBase - [issue]
...From our internal profiling we were surprised by amount of time spent in this call. Further investigation is needed....
http://issues.apache.org/jira/browse/HBASE-11854    Author: Vladimir Rodionov, 2014-09-03, 00:22
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