Re: 0.92 and Read/writes not scaling

2012-04-15 Thread Todd Lipcon
On Fri, Apr 13, 2012 at 9:06 PM, Stack st...@duboce.net wrote: On Fri, Apr 13, 2012 at 8:02 PM, Todd Lipcon t...@cloudera.com wrote: If you want to patch on the HBase side, you can edit HLog.java to remove the checks for the sync method, and have it only call hflush. It's only the

Re: Help: ROOT and META!!

2012-04-15 Thread Yabo Xu
Hi Jon: Please ignore my last email. We found it was a bug, fix it by a patch and rebuild, and it works now. Data are back! Thanks. Best, Arber On Sun, Apr 15, 2012 at 12:47 PM, Yabo Xu arber.resea...@gmail.com wrote: Dear Jon: We just ran OfflineMetaRepair, while getting the following

dump HLog content!

2012-04-15 Thread yonghu
Hello, My hbase version is 0.92.0 and is installed in pseudo-mode. I found a strange situation of HLog. After I inserted new data value into table, the volume of HLog is 0. I checked in HDFS. drwxr-xr-x - yonghu supergroup 0 2012-04-15 17:34 /hbase/.logs drwxr-xr-x - yonghu

Re: dump HLog content!

2012-04-15 Thread Ted Yu
Did 'HLog --dump' show real contents for a 0-sized file ? Cheers On Sun, Apr 15, 2012 at 8:58 AM, yonghu yongyong...@gmail.com wrote: Hello, My hbase version is 0.92.0 and is installed in pseudo-mode. I found a strange situation of HLog. After I inserted new data value into table, the

Re: dump HLog content!

2012-04-15 Thread yonghu
Thanks for your reply. After nearly 60minutes, I can see the Hlog volume. -rw-r--r-- 3 yonghu supergroup 2125 2012-04-15 17:34 /hbase/.logs/yonghu-laptop,60020,1334504008467/yonghu-laptop%2C60020%2C1334504008467.1334504048854 I have no idea why it takes so long time. Yong On Sun, Apr

Re: dump HLog content!

2012-04-15 Thread Manish Bhoge
Yong, It is a Hlog log roll property that keep the log size 0 until the complete block is written OR until it completes the log roll duration mentioned in configuration (default 60 min). However it still persists the edits in .edit files and once it reaches to the interval defined for log roll

Re: dump HLog content!

2012-04-15 Thread yonghu
Thanks for your important information. I have found this information in the hbase-default.xml file. Regards! Yong On Sun, Apr 15, 2012 at 8:36 PM, Manish Bhoge manishbh...@rocketmail.com wrote: Yong, It is a Hlog log roll property that keep the log size 0 until the complete block is