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[HBASE-14521] Unify the semantic of hbase.client.retries.number - HBase - [issue]
...From name of the hbase.client.retries.number property, it should be the number of maximum retries, or say if we set the property to 1, there should be 2 attempts in total. However, there're ...
http://issues.apache.org/jira/browse/HBASE-14521    Author: Yu Li, 2015-10-09, 12:03
[HBASE-14463] Severe performance downgrade when parallel reading a single key from BucketCache - HBase - [issue]
...We store feature data of online items in HBase, do machine learning on these features, and supply the outputs to our online search engine. In such scenario we will launch hundreds of yarn wo...
http://issues.apache.org/jira/browse/HBASE-14463    Author: Yu Li, 2015-09-29, 14:14
[HBASE-14359] HTable#close will hang forever if unchecked error/exception thrown in AsyncProcess#sendMultiAction - HBase - [issue]
...Currently in AsyncProcess#sendMultiAction, we only catch the RejectedExecutionException and let other error/exception go, which will cause decTaskCounter not invoked. Meanwhile, the recommen...
http://issues.apache.org/jira/browse/HBASE-14359    Author: Yu Li, 2015-09-29, 03:30
[HBASE-14456] Implement a namespace-based region grouping strategy for RegionGroupingProvider - HBase - [issue]
...In HBASE-5699 we introduced multiple wal, and after some succeeding works we now have two main kinds of wal providers: DefaultWALProvider and RegionGroupingProvider, while DefaultWALProvider...
http://issues.apache.org/jira/browse/HBASE-14456    Author: Yu Li, 2015-09-26, 12:53
[HBASE-14457] Umbrella: Improve Multiple WAL for production usage - HBase - [issue]
...HBASE-5699 proposed the idea to run with multiple WAL in regionserver and did a great initial work there, but when trying to use it in our production cluster, we still found several issues t...
http://issues.apache.org/jira/browse/HBASE-14457    Author: Yu Li, 2015-09-21, 18:38
[HBASE-14448] Refine RegionGroupingProvider Phase-2: remove provider nesting and formalize wal group name - HBase - [issue]
...Now we are nesting DefaultWALProvider inside RegionGroupingProvider, which makes the logic ambiguous since a "provider" itself should provide logs. Suggest to directly instantiate FSHlog in ...
http://issues.apache.org/jira/browse/HBASE-14448    Author: Yu Li, 2015-09-21, 17:20
[HBASE-14306] Refine RegionGroupingProvider: fix issues and make it more scalable - HBase - [issue]
...There're multiple issues in RegionGroupingProvider, including: The provider cache in it is using byte array as the key of ConcurrentHashMap, which is not right (the reason is here) It's usin...
http://issues.apache.org/jira/browse/HBASE-14306    Author: Yu Li, 2015-09-21, 15:14
[HBASE-14411] Fix unit test failures when using multiwal as default WAL provider - HBase - [issue]
...If we set hbase.wal.provider to multiwal in hbase-server/src/test/resources/hbase-site.xml which allows us to use BoundedRegionGroupingProvider in UT, we will observe below failures in curre...
http://issues.apache.org/jira/browse/HBASE-14411    Author: Yu Li, 2015-09-21, 15:14
[expand - 2 more] - Re: Multiwal performance with HBase 1.x - HBase - [mail # user]
...Hi Vlad,usually less than 1MB/sec)We have some different user scenarios and I'd like to share with you. Weare using hbase to store data for building search index, and features likepv/uv of e...
   Author: Yu Li, 2015-09-21, 06:09
[HBASE-14305] TestHRegion.testWritesWhileGetting hangs during Unit Testing - HBase - [issue]
...As titled, this failure is reported in a UT check by HadoopQA, below is part of the jstack output:"main" prio=10 tid=0x00007fb77000a800 nid=0x5004 in Object.wait() [0x00007fb778799000] ...
http://issues.apache.org/jira/browse/HBASE-14305    Author: Yu Li, 2015-08-26, 07:15
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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