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Re: FuzzyRowFilter in a MR job - HBase - [mail # user]
...(resending this email)I am getting some errors when using FuzzyRowFilter with a scan (in a MR job). Any pointers ?org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after attem...
[+ more]    Author: Kiru Pakkirisamy, 2014-05-29, 05:45
Large Puts in MR job - HBase - [mail # user]
... We are creating a Put with large number (50000) of key/vals in our map task.  This is causing an out-of-memory error. Is there a way to set the autoFlush on when using the TableMapRedu...
   Author: Kiru Pakkirisamy, 2014-01-13, 22:37
Re: Warning messages in hbase logs - HBase - [mail # user]
...Vimal, In my case, for a single client my queries take less than a second (sub-second performance is  on what we were shooting for). But the same queries when run concurrently gives complete...
[+ more]    Author: Kiru Pakkirisamy, 2013-10-24, 06:53
Re: HBase Random Read latency > 100ms - HBase - [mail # user]
...What is the iowait in both cases ?   Regards, - kiru   Kiru Pakkirisamy | webcloudtech.wordpress.com   ________________________________  From: Ramu M S  To: [EMAIL PROTEC...
   Author: Kiru Pakkirisamy, 2013-10-09, 02:55
FuzzyRowFilter missing some keys - HBase - [mail # user]
...I now have string keys padded with spaces to a fixed size (40).  The FuzzyRowFilter is missing some keys. Any ideas, why this would happen ? If I do get a 'get' on the hbase shell, i can see...
   Author: Kiru Pakkirisamy, 2013-09-25, 01:25
Re: Co-Processors in Hase 0.95.2 version - HBase - [mail # user]
...Yeshwanth, With 0.95.2 coprocessors use protocol instead of serializing Java objects, one would use protobuf. Most of the tutorials on protobuf are mainly about the data structures and not m...
   Author: Kiru Pakkirisamy, 2013-09-23, 16:42
Re: 0.95.2 upgrade errors - HBase - [mail # user]
...Himanshu, We did not have much data to move, so we did not use the migration script. After using the (same) hadoop core jar in hbase and cleaning out the data (including zk) , I think I have...
[+ more]    Author: Kiru Pakkirisamy, 2013-09-16, 20:00
Re: HBase - stable versions - HBase - [mail # dev]
...Yes, I read that, but I guess Nicolas elaborated this line, which really helped  - "Our first "Development" Series was the 0.89 set that came out ahead of HBase 0.90.0. HBase 0.95 is another...
[+ more]    Author: Kiru Pakkirisamy, 2013-09-10, 19:50
Concurrent connections to Hbase - HBase - [mail # user]
...Hi All, I'd like to hear from users who are running a  big HBase setup with multiple concurrent connections. Woud like to know the -# of cores/machines, # of queries. Get/RPCs , Hbase versio...
   Author: Kiru Pakkirisamy, 2013-09-05, 17:28
Re: Coprocessor concurrency - HBase - [mail # user]
...Based on the test code below coprocessor calls do not scale for concurrent client. What is actually a 10-20 msec response for single client degrades to even 2000 msec for 32 clients on a clu...
[+ more]    Author: Kiru Pakkirisamy, 2013-09-01, 07:40
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