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[expand - 2 more] - Re: Occasional GSSException that brings down region server - HBase - [mail # user]
...Hi All, we seem to have overcome this occasional exception by changing HTable from being called through ConnectionManager vs. directly instantiating  HTable.OLD BAD:connection = HConnec...
   Author: Wei Tan, 2014-03-14, 21:56
mutable index in phoenix - HBase - [mail # user]
...Hi, I am reading this https://github.com/forcedotcom/phoenix/wiki/Secondary-Indexing and trying to figure out what is the difference between mutable and immutable index. One difference I fig...
   Author: Wei Tan, 2014-02-27, 16:10
[expand - 1 more] - RE: Is HBase is feasible for storing 4-5 MB of data as cell value - HBase - [mail # user]
...Image :)Best regards,WeiWei Tan, PhDResearch Staff MemberIBM T. J. Watson Research Centerhttp://researcher.ibm.com/person/us-wtanFrom:   Vladimir Rodionov To:     "[EMAIL PROT...
   Author: Wei Tan, 2014-02-27, 12:30
[expand - 3 more] - Re: larger HFile block size for very wide row? - HBase - [mail # user]
...Hi Ted and Vladimir, thanks!I was thinking if using index is a good idea. My scan/get criteria is something like "get all rows I inserted since end of yesterday". I may have to use MapReduce...
   Author: Wei Tan, 2014-01-29, 22:41
[expand - 2 more] - Re: Design review: Secondary index support through coprocess - HBase - [mail # dev]
...Hi James, I guess as long as you have cross-region RPC this cyclic  deadlock can occur? If you batch the RPC, it may be far less likely to  occur because the number of RPC is far f...
   Author: Wei Tan, 2014-01-22, 19:38
Re: How can I insert large image or video into HBase? - HBase - [mail # user]
...Roman, thanks for sharing your experience. Is your approach is somewhat  similar to Facebook's image store, Haystack? I am very interested in knowing your use case, and what you actuall...
   Author: Wei Tan, 2013-10-24, 04:19
[expand - 2 more] - Re: coprocessor status query - HBase - [mail # user]
...Hi Gary, thanks for your clarification and yes, I totally agree with your  statement.  The class is not removed but the CP is kind of removed and not active  after an un-handl...
   Author: Wei Tan, 2013-10-23, 05:13
[expand - 2 more] - RE: passing a parameter to an observer coprocessor - HBase - [mail # user]
...We would like to avoid such interruption. A global hashmap storing such a  setting would be more desirable. Thanks, Wei  Wei Tan, PhD Research Staff Member IBM T. J. Watson Researc...
   Author: Wei Tan, 2013-08-23, 03:38
[expand - 2 more] - Re: coprocessor enabled put very slow, help please~~~ - HBase - [mail # user]
...A side question: if HTablePool is not encouraged to be used... how we  handle the thread safeness in using HTable? Any replacement for  HTablePool, in plan? Thanks,   Best Reg...
   Author: Wei Tan, 2013-02-19, 15:15
HBase /lib directory contains any json processing util? - HBase - [mail # user]
...We need to parse JSON in a coprocessor and if HBase /lib directory  contains any json processing util, we can avoid introducing additional  jars. Thanks!   Best Regards, Wei...
   Author: Wei Tan, 2013-02-01, 01:03
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