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[HBASE-2353] HBASE-2283 removed bulk sync optimization for multi-row puts - HBase - [issue]
...previously to HBASE-2283 we used to call flush/sync once per put(Put[]) call (ie: batch of commits).  Now we do for every row.  This makes bulk uploads slower if you are using WAL....
http://issues.apache.org/jira/browse/HBASE-2353    Author: ryan rawson, 2014-08-20, 20:52
[HBASE-3480] Reduce the size of Result serialization - HBase - [issue]
...When faced with a gigabit ethernet network connection, things are pretty slow actually.  For example, let's take a 2 MB reply, using a 120MB/sec line rate, we are talking about about 16...
http://issues.apache.org/jira/browse/HBASE-3480    Author: ryan rawson, 2014-08-12, 20:15
[HBASE-3487] regionservers w/o a master give up after a while but does so in a silent way that leaves the process hanging in a ugly way - HBase - [issue]
...while testing I was having problems with my master aborting early on, which causes trouble with the regionservers... they are SUPPOSED to wait forever for the master to come up, but they eve...
http://issues.apache.org/jira/browse/HBASE-3487    Author: ryan rawson, 2014-07-19, 02:08
[HBASE-3486] investigate and fix why HBASE-3481 didn't trigger unit tests - HBase - [issue]
...we have unit tests that cover durability, but they did not detect the problem outlined in HBASE-3481.  We should fix those tests....
http://issues.apache.org/jira/browse/HBASE-3486    Author: ryan rawson, 2014-07-19, 02:07
[HBASE-3165] some performance things i did - HBase - [issue]
...in an attempt to improve the profile of the serialization of results in the regionserver side I did a large number of things to reduce buffer copies, improve the API usage efficiency (using ...
http://issues.apache.org/jira/browse/HBASE-3165    Author: ryan rawson, 2014-07-19, 01:44
[HBASE-3369] We should use HBaseClient.call() that has parallelism built in - HBase - [issue]
...the HBaseClient supports a call like so:  public Writable[] call(Writable[] params, InetSocketAddress[] addresses)And we are able to dispatch and retrieve multiple requests without...
http://issues.apache.org/jira/browse/HBASE-3369    Author: ryan rawson, 2014-07-19, 01:39
[HBASE-2251] PE defaults to 1k rows - uncommon use case, and easy to hit benchmarks - HBase - [issue]
...The PerformanceEvaluation uses 1k rows, which I would argue is uncommon, and also provides an easy to hit performance goal.  Most of the harder performance issues happens at the low and...
http://issues.apache.org/jira/browse/HBASE-2251    Author: ryan rawson, 2014-07-17, 00:45
[HBASE-3099] optimization for log splitting (theory/suggestion) - HBase - [issue]
...Right now log splitting is slower than we'd like.  The slow pace of log splitting is one of the reasons why we have to keep a short, bounded, limit of the outstanding log files.  I...
http://issues.apache.org/jira/browse/HBASE-3099    Author: ryan rawson, 2014-07-17, 00:10
[HBASE-3069] Use ports for QOS - HBase - [issue]
...META table isnt the only table that needs priority access, users might have tables they wish to always have high speed/real time access, but still allowing map reduces or slow/bulk operation...
http://issues.apache.org/jira/browse/HBASE-3069    Author: ryan rawson, 2014-07-17, 00:04
[HBASE-1510] allow zookeeper quorum IPs in DNS as an option - HBase - [issue]
...instead of configuring IPs in zoo.conf, allow retrieving the IPs from DNS.  This way we don't have to supply zoo.conf or any hbase-site.xml to clients.  eg, one quorum might ahve a...
http://issues.apache.org/jira/browse/HBASE-1510    Author: ryan rawson, 2014-07-16, 22:47
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