Re: HBase 0.19.0: Xcievers / shutdown / JVM GC settings

2009-02-23 Thread stack
Thanks also for the considered message below J-A. I echo J-D's suggestion that the #3 note belongs on the troubleshooting page. Your suggestion would help with, https://issues.apache.org/jira/browse/HBASE-616, IIUC? If you agree I can add it, no problem. Will follow up on the other items in a w

Re: HBase Write Failure

2009-02-23 Thread Liu Yan
We are trying to increase the max-file setting, and will post you the results. Thanks, Yan 2009/2/23 Amandeep Khurana > I've been dealing with this myself over the last few days. Its got to do > with the number of open files that hdfs can take. What is your cluster > config? > > > > > Amandeep

Re: Embarrassing question on open files limit

2009-02-23 Thread jason hadoop
No, changes to /etc/security/limits.conf take effect on the next LOGIN of the user in question. ie: login sessions and the processes created by those login sessions use the contents of the /etc/security/limits.conf that was in effect at the time of login. Change the file, log out and log back in a

Re: HBase 0.19.0: Xcievers / shutdown / JVM GC settings

2009-02-23 Thread Jean-Daniel Cryans
Jean-Adrien, Regards #2, I googled the error and stumbled upon https://issues.apache.org/jira/browse/HADOOP-4866 which blames the client software. In our case, it would mean HBase is doing something wrong. This is a bug, could you fill in a Jira? Regards #3, we have been tackling with the same pr

Re: HBase Write Failure

2009-02-23 Thread Jean-Daniel Cryans
Liu, What's your cluster hardware like and how many machines? What's your HBase configuration? Which version of HBase? Did you meet the requirements stated here http://hadoop.apache.org/hbase/docs/r0.19.0/api/overview-summary.html#overview_description? Have you look in your region servers logs

Re: Embarrassing question on open files limit

2009-02-23 Thread Jean-Daniel Cryans
Yep! J-D On Mon, Feb 23, 2009 at 10:24 AM, Michael Dagaev wrote: > Hi, all > > As I understand, if I change the number of open files in > /etc/security/limits.conf > I have to _reboot_ the computer. Is it correct? > > Thank you for your cooperation, > M. >

Embarrassing question on open files limit

2009-02-23 Thread Michael Dagaev
Hi, all As I understand, if I change the number of open files in /etc/security/limits.conf I have to _reboot_ the computer. Is it correct? Thank you for your cooperation, M.

HBase 0.19.0: Xcievers / shutdown / JVM GC settings

2009-02-23 Thread Jean-Adrien
Hello, I recently upgraded to HBase / Hadoop 0.19.0 and I have some notes to share: == 1. Xcievers. == First of all thanks you for this new version. Regarding to the Hadoop setting about Xcievers threads, as noticed by stack (http://www.nabble.com/Datanode-Xceivers-td21372227.ht