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Re: HBase M/R with M/R and HBase not on same cluster - HBase - [mail # user]
...Just out of curiosity...  Why do you want to run the job on Cluster A that reads from Cluster B but writes to Cluster A?   Wouldn't it be easier to run the job on Cluster B and ins...
   Author: Michael Segel, 2013-03-25, 16:12
Re: ‘split’ start/stop key range of large table regions for more map tasks - HBase - [mail # user]
...I think the problem is that Wei has been reading some stuff in blogs and that's why he has such a large region size to start with.   So if he manually splits the logs, drops the region ...
   Author: Michael Segel, 2013-03-25, 15:52
Re: Evenly splitting the table - HBase - [mail # user]
...@Aaron,   You said you're using a salt, which would imply that your number is random and not derived from the base key.  (Where base key is the key prior to being hashed. )  I...
   Author: Michael Segel, 2013-03-25, 11:20
Re: HBase type support - HBase - [mail # user]
...Thanks for the clarification Doug.   Back to my point, I was saying that MD5 and SHA-1 are already part of the Java package so if you're running Java 1.6_xx or Java 1.7_xx, you will hav...
[+ more]    Author: Michael Segel, 2013-03-19, 00:42
Re: LIMITATIONS OF CODE THAT CAN BE WRITTEN IN HBASE COPROCESSORS - HBase - [mail # user]
...I'm not sure of your question...   Is it that when you wish to push out a new version of your coprocessor, that you have issues because the older version is being executed instead? &nbs...
   Author: Michael Segel, 2013-02-28, 16:31
Re: coprocessor enabled put very slow, help please~~~ - HBase - [mail # user]
...I should follow up with that I was asking why he was using an HTable Pool, not saying that it was wrong.   Still. I think in the pool the writes shouldn't have to go to the WAL.   ...
[+ more]    Author: Michael Segel, 2013-02-19, 16:29
Re: HBase without compactions? - HBase - [mail # user]
...Well  M7 is supposed to be in open public beta,  I think.   I haven't had time to play with it, but MapR has a lot of nice features that can't really be done in HDFS.  It...
[+ more]    Author: Michael Segel, 2013-02-19, 06:47
Re: Optimizing Multi Gets in hbase - HBase - [mail # user]
...So you'd have to do a little bit of home work up front.   Supposed you have to pull some data from 30K rows out of 10 Mil? If they are in sort order, you could determine the regions and...
   Author: Michael Segel, 2013-02-18, 12:52
Re: Row Key Design in time based aplication - HBase - [mail # user]
...So its a *shameless* plug?  :-)  Depending on the project id, it could be a good key, but it would have to be something more meaningful than just a number.   To answer the que...
[+ more]    Author: Michael Segel, 2013-02-18, 01:29
Re: Using HBase for Deduping - HBase - [mail # user]
...Well,  Maybe its a lack of sleep, but this is what I found...  checkAndPut  public boolean checkAndPut(byte[] row,                 &nbs...
[+ more]    Author: Michael Segel, 2013-02-15, 01:43
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