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Re: backup utility (HBASE-897) - HBase - [mail # user]
...Why you can't use org.apache.hadoop.hbase.mapreduce.Export ?  ./hadoop/bin/hadoop jar hbase/hbase-0.89.20100830-ncb3-hadoop737.jar An example program must be given as the first argument...
   Author: Andrey Stepachev, 2011-03-01, 14:52
Re: Truncate tables - HBase - [mail # user]
...It is strage thing in hbase. Operations like create or drop are asyncronous, so immidiately after first rpc 'disable' hbase client try to check succesfull execution. Often it is not really c...
   Author: Andrey Stepachev, 2011-02-15, 11:36
Re: Parent/child relation - go vertical, horizontal, or many tables? - HBase - [mail # user]
...I such case I think that you can use tall tables with parent:child keys and filters or range scans to get childrens.  You queries will be: -Fetch all children from a single parent  ...
   Author: Andrey Stepachev, 2011-02-11, 09:46
Re: Determining the unqiue row keys for Hbase table - HBase - [mail # user]
...You can use HTable.incrementColumnValue. Of cource you can increment in steps (f.e. 100) and reduce amount of rpc generetated by you MR jobs.  2011/2/7 som_shekhar  ...
   Author: Andrey Stepachev, 2011-02-08, 21:03
[expand - 8 more] - Re: Java Commited Virtual Memory significally larged then Heap Memory - HBase - [mail # user]
...No, I use only malloc env var, and I set it (as suggested before) into hbase-env.sh, and it looks like it eats more less memory (in my case 4.7G v s 3.3G with 2Gheap)  2011/1/12 Friso v...
   Author: Andrey Stepachev, 2011-01-12, 11:05
[expand - 1 more] - Re: problem with LZO compressor on write only loads - HBase - [mail # user]
...Yes, I tried.  2011/1/12 Sandy Pratt  ...
   Author: Andrey Stepachev, 2011-01-12, 04:49
[expand - 2 more] - Re: How to rename table's family name - HBase - [mail # user]
...Stack, I don't think, that I know good solution, but I see some possible way how this can be implemented.  I think, that rename should be atomic (in case of schema in zookeeper, it is p...
   Author: Andrey Stepachev, 2011-01-10, 23:02
[expand - 4 more] - Re: question about merge-join (or AND operator betwween colums) - HBase - [mail # user]
...2011/1/9 Jack Levin    It depends on selectivity of your photo column. If it is rare case (1% of rows has fotos), it is more wise to scan only photo family and then get another fam...
   Author: Andrey Stepachev, 2011-01-10, 22:46
[expand - 1 more] - Re: Insert into tall table 50% faster than wide table - HBase - [mail # user]
...2010/12/23 Ted Dunning    Opps. :).  Maybe you put more data? Do you using compression? (in case of prefixed qualifiers you get more data, that uuid can has comparable length ...
   Author: Andrey Stepachev, 2010-12-23, 09:57
[expand - 6 more] - Re: HBase Client connect to remote HBase - HBase - [mail # user]
...2010/12/23 King JKing    Yes. Propblem is in incorrect dns/hosts configuration. Remote client can't reach your server, because HBase uses incorrect address.  ...
   Author: Andrey Stepachev, 2010-12-23, 09:21
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