Fwd: About _setattr() optimazation and recovery accelerate

2015-03-09 Thread Nicheal
254bytes, which means if there exits too many fragment, do not record the overlaps. Regards Ning Yao 2015-03-09 13:35 GMT+08:00 Haomai Wang haomaiw...@gmail.com: On Mon, Mar 9, 2015 at 1:26 PM, Nicheal zay11...@gmail.com wrote: 2015-03-07 16:43 GMT+08:00 Haomai Wang haomaiw...@gmail.com

Re: About _setattr() optimazation and recovery accelerate

2015-03-08 Thread Nicheal
2015-03-07 16:43 GMT+08:00 Haomai Wang haomaiw...@gmail.com: On Sat, Mar 7, 2015 at 12:03 AM, Sage Weil sw...@redhat.com wrote: Hi! [copying ceph-devel] On Fri, 6 Mar 2015, Nicheal wrote: Hi Sage, Cool for issue #3878, Duplicated pg_log write, which is post early in my issue #3244

Re: ERROR: assert(last_e.version.version e.version.version)

2015-01-14 Thread Nicheal
and failed to record some transactions. You'll want to make sure your filestore/filesystem/disk configuration isn't causing inconsistencies. -Sam On Tue, Jan 6, 2015 at 7:54 PM, Nicheal zay11...@gmail.com wrote: Hi all, I cannot restart some osds when after a flipping of all 54 osds. The log

ERROR: assert(last_e.version.version e.version.version)

2015-01-06 Thread Nicheal
Hi all, I cannot restart some osds when after a flipping of all 54 osds. The log is show below: -9 2015-01-06 10:53:07.976997 7f35695177a0 20 read_log 31150'2273018 (31150'2273012) modify 4a8b7974/rb.0.bc58e8.6b8b4567.3e37/head//2 by client.16829289.1:720306459 2015-01-05

why do we need SNAPDIR ?

2014-12-24 Thread Nicheal
Dear develops, I find that SNAPDIR means a special object in ceph. It is a read-only object since if a op write want to modify SNAPDIR object, it return -EINVAL immediately. But I cannot find when we need to create the SNAPDIR object? and what is used for? Based on my understanding, ceph

Is there any documents to describe the architecture of ceph unit test based on gtest

2014-12-09 Thread Nicheal
Hi, all Is any guideline that describes how to run the ceph unit test, and its basic architecture? -- To unsubscribe from this list: send the line unsubscribe ceph-devel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

Re: [ceph-users] why the erasure code pool not support random write?

2014-10-21 Thread Nicheal
to the hot pool and saving it into kv-store? Expecting haomai Wang's input Nicheal, Regards Thanks. ___ ceph-users mailing list ceph-us...@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com -- Wido den Hollander Ceph

Re: WriteBack Throttle kill the performace of the disk

2014-10-14 Thread Nicheal
2014-10-14 21:22 GMT+08:00 Sage Weil s...@newdream.net: On Tue, 14 Oct 2014, Mark Nelson wrote: On 10/14/2014 12:15 AM, Nicheal wrote: Yes, Greg. But Unix based system always have a parameter dirty_ratio to prevent the system memory from being exhausted. If Journal speed is so fast while

Re: WriteBack Throttle kill the performace of the disk

2014-10-14 Thread Nicheal
On 10/14/2014 02:19 PM, Mark Nelson wrote: On 10/14/2014 12:15 AM, Nicheal wrote: Yes, Greg. But Unix based system always have a parameter dirty_ratio to prevent the system memory from being exhausted. If Journal speed is so fast while backing store cannot catch up with Journal

Re: WriteBack Throttle kill the performace of the disk

2014-10-14 Thread Nicheal
2014-10-14 20:19 GMT+08:00 Mark Nelson mark.nel...@inktank.com: On 10/14/2014 12:15 AM, Nicheal wrote: Yes, Greg. But Unix based system always have a parameter dirty_ratio to prevent the system memory from being exhausted. If Journal speed is so fast while backing store cannot catch up

WriteBack Throttle kill the performace of the disk

2014-10-13 Thread Nicheal
/). Large number of inode will cause longer time to sync, but submitting a batch of write to disk always faster than submitting few io update to the disk. Nicheal -- To unsubscribe from this list: send the line unsubscribe ceph-devel in the body of a message to majord...@vger.kernel.org More

Re: WriteBack Throttle kill the performace of the disk

2014-10-13 Thread Nicheal
Yes, Greg. But Unix based system always have a parameter dirty_ratio to prevent the system memory from being exhausted. If Journal speed is so fast while backing store cannot catch up with Journal, then the backing store write will be blocked by the hard limitation of system dirty pages. The

why index (collectionIndex) need a lock?

2014-09-30 Thread Nicheal
always lock the index before lookup() path or lfn_find()? Any other reasons? Nicheal -- To unsubscribe from this list: send the line unsubscribe ceph-devel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html