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[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
Re: Nifty code summaries. - HBase - [mail # dev]
...interesting, my sloccount program shows about half of that: SLOC    Directory       SLOC-by-Language (Sorted) 199611  hbase-server    java=193938,ruby...
   Author: Todd Lipcon, 2013-06-05, 17:29
[HBASE-2231] Compaction events should be written to HLog - HBase - [issue]
...The sequence for a compaction should look like this: Compact region to "new" files Write a "Compacted Region" entry to the HLog Delete "old" filesThis deals with a case where the RS has paus...
http://issues.apache.org/jira/browse/HBASE-2231    Author: Todd Lipcon, 2013-05-24, 10:29
[HBASE-2332] Remove client-exposed row locks from region server - HBase - [issue]
...Discussion in HBASE-2294 has surfaced that the client-exposed row lock feature in the HBase API may not be scalable/necessary. Additionally there are some benefits we can reap by removing th...
http://issues.apache.org/jira/browse/HBASE-2332    Author: Todd Lipcon, 2013-05-14, 03:22
[HBASE-5912] org.apache.hadoop.hbase.ipc.ProtocolSignature.getFingerprint takes significant CPU - HBase - [issue]
...I ran oprofile on a YCSB client and found that a large percentage of the CPU time was going to this function:51991     0.4913  25361.jo           &nbs...
http://issues.apache.org/jira/browse/HBASE-5912    Author: Todd Lipcon, 2013-05-05, 00:40
[HBASE-3457] Auto-tune some GC settings - HBase - [issue]
...The settings we ship with aren't really optimal for an actual deployment. We can take a look at some things like /proc/cpuinfo and figure out whether to enable parallel GC, turn off CMSIncre...
http://issues.apache.org/jira/browse/HBASE-3457    Author: Todd Lipcon, 2013-05-04, 00:37
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