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Re: Adding frameworks and coding for testabilitywas [Re: Testing the fix for race condition between Compaction and StoreScanner.init] - HBase - [mail # dev]
...I haven't seen the particular "framework" in question, but I do think there's a continuum of reasonable choices here, ranging from full DI and using mocks/spys, to using AspectJ for AOP, to ...
   Author: Todd Lipcon, 2013-11-22, 23:06
[HBASE-4393] Implement a canary monitoring program - HBase - [issue]
...This JIRA is to implement a standalone program that can be used to do "canary monitoring" of a running HBase cluster. This program would gather a list of the regions in the cluster, then ite...
http://issues.apache.org/jira/browse/HBASE-4393    Author: Todd Lipcon, 2013-10-15, 05:46
[HBASE-4231] Flush regions in multiple threads - HBase - [issue]
...As servers get beefier, it makes less and less sense to have only a single thread do flushes at a time. In watching an insert-only benchmark run, HBase isn't currently disk, network, or CPU-...
http://issues.apache.org/jira/browse/HBASE-4231    Author: Todd Lipcon, 2013-09-23, 17:53
[HBASE-5897] prePut coprocessor hook causing substantial CPU usage - HBase - [issue]
...I was running an insert workload against trunk under oprofile and saw that a significant portion of CPU usage was going to calling the "prePut" coprocessor hook inside doMiniBatchPut, even t...
http://issues.apache.org/jira/browse/HBASE-5897    Author: Todd Lipcon, 2013-09-18, 23:15
[HBASE-4403] Adopt interface stability/audience classifications from Hadoop - HBase - [issue]
...As HBase gets more widely used, we need to be more explicit about which APIs are stable and not expected to break between versions, which APIs are still evolving, etc. We also have many publ...
http://issues.apache.org/jira/browse/HBASE-4403    Author: Todd Lipcon, 2013-09-11, 01:40
[HBASE-3939] Some crossports of Hadoop IPC fixes - HBase - [issue]
...A few fixes from Hadoop IPC that we should probably cross-port into our copy: HADOOP-7227: remove the protocol version check at call time HADOOP-7146: fix a socket leak in server HADOOP-7121...
http://issues.apache.org/jira/browse/HBASE-3939    Author: Todd Lipcon, 2013-08-19, 23:46
Re: [UPDATE] Finishing up 0.96 --> WAS Re: 0.95 and 0.96 remaining issues - HBase - [mail # dev]
...Hey Ram,  Just a thought: could you make the backward-incompatible changes in the data format ahead of actually having support for using them? EG if you need a new field, put it unused ...
   Author: Todd Lipcon, 2013-08-15, 08:15
[HBASE-4361] Certain filter expressions fail in the shell - HBase - [issue]
...Running the following in the shell hangs and then fails:scan 't1', { FILTER => "SingleColumnValueFilter(">", '1', 'f1', 'col_a')" }The error seems to be: org.jruby.exceptions.RaiseExce...
http://issues.apache.org/jira/browse/HBASE-4361    Author: Todd Lipcon, 2013-08-12, 19:43
Re: Efficiently wiping out random data? - HBase - [mail # dev]
...I'd also question what exactly the regulatory requirements for deletion are. For example, if you had tape backups of your Oracle DB, would you have to drive to your off-site storage facility...
   Author: Todd Lipcon, 2013-06-19, 16:27
Re: large heaps - HBase - [mail # dev]
...Hey Nicolas,  I've corresponded with that guy a few times in the past -- back when i was attempting to hack some patches into G1 for better performance on HBase. The end result of that ...
   Author: Todd Lipcon, 2013-06-13, 05:30
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