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Re: Sudden increase in disk utilization - HBase - [mail # user]
...Are you using any compression?    ________________________________  From: Vimal Jain  To: [EMAIL PROTECTED]  Sent: Thursday, October 17, 2013 6:15 AM Subject: Sudden...
   Author: lars hofhansl, 2013-10-17, 17:48
Re: CDH4.4 and HBASE-8912 issue - HBase - [mail # user]
...Hi Boris,  could you add the exact exceptions/logs you've seen to HBASE-8912?  Thanks.     ________________________________  From: Boris Emelyanov  To: Harsh J ...
   Author: lars hofhansl, 2013-10-17, 17:47
Re: How to query based on partial row key - HBase - [mail # user]
...You can also try Phoenix, which does this automatically for you. (https://github.com/forcedotcom/phoenix)    ________________________________  From: Ramasubramanian  To: ...
   Author: lars hofhansl, 2013-10-16, 14:43
Re: Scanner with explicit columns list is very slow - HBase - [mail # dev]
...Interesting. Thanks for doing the testing/profiling Vladimir!   Generally reseeks are better if they can skip many KVs.  For example if you have many versions of the same row/col, ...
   Author: lars hofhansl, 2013-10-15, 04:38
Re: Excessive filtering in RegionScannerImpl - HBase - [mail # dev]
...Filters can work at the row level and the KV level. In RegionScannerImpl.nextInternal we do the row level filtering and in StoreScanner.next() via ScanQueryMatcher we do the KV based filteri...
   Author: lars hofhansl, 2013-10-12, 23:17
Re: Why HBase reduce the size of data when writing to the disk - HBase - [mail # user]
...Are you setting the timestamp yourself?     From: Farrokh Shahriari  To: [EMAIL PROTECTED]; lars hofhansl  Cc: "[EMAIL PROTECTED]"  Sent: Saturday, October 12, 2013 ...
   Author: lars hofhansl, 2013-10-12, 22:55
Re: skipKVsNewerThanReadpoint in StoreFileScanner and MemStoreScanner - HBase - [mail # dev]
...Taking a quick look... It is easy to reduce the ThreadLocal calls by 50% without any refactoring in the Memstore.  Also thinking about this more, we already have metadata in HFile about...
   Author: lars hofhansl, 2013-10-12, 03:55
Re: Haeinsa: linear scalable multi-row transaction library for HBase - HBase - [mail # user]
...Thanks Andrew.  This sounds very interesting! Will definitely have a look.  ________________________________ From: Myungbo Kim  To: [EMAIL PROTECTED]  Cc: Jung-Haeng Lee ...
   Author: lars hofhansl, 2013-10-10, 17:59
Re: HBase Random Read latency > 100ms - HBase - [mail # user]
...Good call. Could try to enable hbase.regionserver.checksum.verify, which will cause HBase to do its own checksums rather than relying on HDFS (and which saves 1 IO per block get).  I do...
   Author: lars hofhansl, 2013-10-09, 05:29
Re: Building HBase 0.94.12 for Hadoop 3.0.0 - HBase - [mail # user]
...Hi Siddarth,  did you try to build against Hadoop 3.0.0 and it failed?      ________________________________  From: Siddharth Karandikar  To: [EMAIL PROTECTED] ...
   Author: lars hofhansl, 2013-10-03, 16:01
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