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Re: HBase and HDFS append() - HBase - [mail # user]
...> My understanding is that HBase requires "durable sync" capabilities of HDFS (i.e. hflush() hsync()), but does *not* require file append capabilities.  99.99% true. The remaining 0....
   Author: Nicolas Liochon, 2013-10-24, 15:35
[HBASE-5843] Improve HBase MTTR - Mean Time To Recover - HBase - [issue]
...A part of the approach is described here: https://docs.google.com/document/d/1z03xRoZrIJmg7jsWuyKYl6zNournF_7ZHzdi0qz_B4c/editThe ideal target is: failure impact client applications only by ...
http://issues.apache.org/jira/browse/HBASE-5843    Author: Nicolas Liochon, 2013-10-22, 21:34
Re: [VOTE] The 6th hbase-0.96.0 release candidate is available for download - HBase - [mail # dev]
...I'm +1. I've downloaded the released, deployed it. Ran YCSB, kills the nodes. I've ran a trunk client vs. the RC5, it works. As Elliott on the good news, the modules, the recovery, MTTR ( ;-...
   Author: Nicolas Liochon, 2013-10-18, 21:06
[HBASE-6058] Use ZK 3.4 API 'multi' in bulk assignment - HBase - [issue]
...We use async API today. This is already much much faster than the sync API. Still, it makes sense to use the 'multi' function: this will decrease the network & zookeeper load at startup/...
http://issues.apache.org/jira/browse/HBASE-6058    Author: Nicolas Liochon, 2013-10-15, 10:05
[HBASE-6736] Distributed Split: a split tasks can be mark as DONE but keep unassigned - HBase - [issue]
...Real cluster, scenario mentioned on HBASE-5843.Got it once out of 5 tests on 0.96Didn't get it on 0.94 after 3 tests.It seems we have a race condition on split logs: the task was nearly simu...
http://issues.apache.org/jira/browse/HBASE-6736    Author: Nicolas Liochon, 2013-10-15, 10:04
[HBASE-7590] Add a costless notifications mechanism from master to regionservers & clients - HBase - [issue]
...t would be very useful to add a mechanism to distribute some information to the clients and regionservers. Especially It would be useful to know globally (regionservers + clients apps) that ...
http://issues.apache.org/jira/browse/HBASE-7590    Author: Nicolas Liochon, 2013-10-15, 05:46
[HBASE-5924] In the client code, don't wait for all the requests to be executed before resubmitting a request in error. - HBase - [issue]
...The client (in the function HConnectionManager#processBatchCallback) works in two steps: make the requests collect the failures and successes and prepare for retryIt means that when there is...
http://issues.apache.org/jira/browse/HBASE-5924    Author: Nicolas Liochon, 2013-10-15, 05:46
[HBASE-9670] Client pause should be 100ms everywhere - HBase - [issue]
...It was changed to 100ms, but kept as 1000ms in a lot of places......
http://issues.apache.org/jira/browse/HBASE-9670    Author: Nicolas Liochon, 2013-10-04, 21:39
[HBASE-7462] TestDrainingServer is an integration test. It should be a unit test instead - HBase - [issue]
...TestDrainingServer tests the function that allows to say that a regionserver should not get new regions.As it is written today, it's an integration test: it starts & stops a cluster.The ...
http://issues.apache.org/jira/browse/HBASE-7462    Author: Nicolas Liochon, 2013-10-04, 21:32
[HBASE-9701] Make SLEEP_TIME in IntegrationTestMTTR configurable - HBase - [issue]
...This will allow to try to shorten the testing time....
http://issues.apache.org/jira/browse/HBASE-9701    Author: Nicolas Liochon, 2013-10-04, 21:32
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