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[HBASE-4286] NPE when master shuts down during processing of server shutdowns - HBase - [issue]
...If the master shuts down while trying to process a server crash, it will escape out of the loop trying to read META, and then the hris variable is null. This results in the following NPE:201...
http://issues.apache.org/jira/browse/HBASE-4286    Author: Todd Lipcon, 2012-08-30, 18:32
[HBASE-4388] Second start after migration from 90 to trunk crashes - HBase - [issue]
...I started a trunk cluster to upgrade from 90, inserted a ton of data, then did a clean shutdown. When I started again, I got the following exception:11/09/13 12:29:09 INFO master.HMaster: Me...
http://issues.apache.org/jira/browse/HBASE-4388    Author: Todd Lipcon, 2012-08-29, 00:41
[HBASE-5449] Support for wire-compatible security functionality - HBase - [issue]
http://issues.apache.org/jira/browse/HBASE-5449    Author: Todd Lipcon, 2012-08-26, 22:28
[HBASE-5915] Improve performance of KeyValue comparison - HBase - [issue]
...Got bored tonight and poked around at making KeyValue comparison faster. I was able to get a ~23% speedup on a micro-benchmark I wrote by using Unsafe in a few more places. This should make ...
http://issues.apache.org/jira/browse/HBASE-5915    Author: Todd Lipcon, 2012-08-25, 22:15
[HBASE-5450] Support for wire-compatibility in inter-cluster replication (ZK, etc) - HBase - [issue]
http://issues.apache.org/jira/browse/HBASE-5450    Author: Todd Lipcon, 2012-08-25, 00:38
[HBASE-4216] IllegalArgumentException prefetching from META - HBase - [issue]
...Received one of these while doing a YCSB test on 26 nodes on trunk:java.io.IOException: java.lang.IllegalArgumentException: hostname can't be null...
http://issues.apache.org/jira/browse/HBASE-4216    Author: Todd Lipcon, 2012-08-23, 20:06
Re: Use of required keyword in protobuf messages - HBase - [mail # dev]
...Yea, my recollection is that we decided to leave rolling upgrade across major versions out of scope for now, but like Greg said, try to do it between any two major versions where it looks "e...
   Author: Todd Lipcon, 2012-08-08, 19:46
Re: Handling protocol versions - HBase - [mail # dev]
...One possibility:  During the IPC handshake, we could send the full version string / source checksum. Then, have a client-wide map which caches which methods have been found to be suppor...
   Author: Todd Lipcon, 2012-08-01, 18:04
[HBASE-3672] MapReduce test cases shouldn't use system /tmp - HBase - [issue]
...Right now some of our MR test cases seem to put local directories in /tmp - this can cause conflicts when running multiple builds on the same Hudson box. We should instead use a build/tmp di...
http://issues.apache.org/jira/browse/HBASE-3672    Author: Todd Lipcon, 2012-07-30, 23:27
Re: CCSHB : PASS! - HBase - [mail # user]
...Congrats, Cristofer. Glad you found the exam both challenging and useful as something to study for. A few of us in the community spent lots of time reviewing the questions, etc. Hope to see ...
   Author: Todd Lipcon, 2012-07-19, 01:36
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB