Re: [ceph-users] multi-datacenter crush map

2015-09-21 Thread Robert LeBlanc
ure out how to distribute balanced data in an unbalanced way. You will probably want to look at primary affinity. This talks about SSD, but the same principle applies http://www.sebastien-han.fr/blog/2015/08/06/ceph-get-the-best-of-your-ssd-with-primary-affinity/ - Robert LeBlanc P

Re: [ceph-users] snapshot failed after enable cache tier

2015-09-21 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 If I recall, there was a bug or two that was found with cache tiers and snapshots and were fixed. I hope it is being backported to Hammer. I don't know if this exactly fixes your issue. - Robert LeBlanc PGP Fingerprint 79A2 9CA4

Re: [ceph-users] Potential OSD deadlock?

2015-09-20 Thread Robert LeBlanc
. Thanks, - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Sun, Sep 20, 2015 at 9:03 AM, Robert LeBlanc wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > We had another incident of 100 long blocked I/O this mo

Re: [ceph-users] Potential OSD deadlock?

2015-09-20 Thread Robert LeBlanc
Fl4/+MZS1T3qNlKEMk+jWRC5nYwE7e1aomABY0QbHHGxgPK pFl9sm9cOKfWCRXQX4w7mMRspiMosW1X1WbmLe2cU17xtudc0rsEZycPOt3n XCwin7/+yxKwp/MSWCk/vR/pY7Q/73Pi4kKRzXpFHLpJnteZ3moATTmuSSQm 3Ggb =SJmS -END PGP SIGNATURE- -------- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62

Re: [ceph-users] Delete pool with cache tier

2015-09-20 Thread Robert LeBlanc
r rbd" - -------- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Sun, Sep 20, 2015 at 9:36 PM, Wang, Zhiqiang wrote: > I remember previously I can delete the cache pool without flushing/evicting > all the objects first. The way I did it is to remov

Re: [ceph-users] Delete pool with cache tier

2015-09-20 Thread Robert LeBlanc
/ciuiD2d8HgaOaC04a4dhfPq4vxTsJk940qxo0HHUCwckC9XXbwefuUicz 9R2C6/GTi7RmbfyPJcAZcxFSxSHsWcr5fYO0ZQC2bS0eknw/RV7nrTttiPO7 Jd3lMyzfB3561sbrpEMwuWgnfFWK8ptqdUxcWf+aiUPLdf11Jeh0vEmjS831 n2sbuAhgHBJajerPi4PClE0mCXmCZMNdI1BXDD7E7c4Mnr3/1tWQeqwQLq4V pF/+ =q3c/ -END PGP SIGNATURE- Robert LeBlanc PGP Fingerprint 79A2 9CA4

Re: [ceph-users] Clarification of Cache settings

2015-09-20 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On Sun, Sep 20, 2015 at 9:49 PM, Wang, Zhiqiang wrote: >> -Original Message- >> From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of >> Robert LeBlanc >> Sent: Saturday, September 19, 2015 12

Re: [ceph-users] Potential OSD deadlock?

2015-09-20 Thread Robert LeBlanc
[stat,set-alloc-hint object_size 8388608 write_size 8388608,write 3235840~4096] 17.118f0c67 ack+ondisk+write+known_if_redirected e57590) currently waiting for rw locks ---- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Sun, Sep 20, 2015 at 7

[ceph-users] Potential OSD deadlock?

2015-09-19 Thread Robert LeBlanc
the blocked I/O and then it was fine after rejoining the cluster. Increasing what logs and to what level would be most beneficial in this case for troubleshooting? I hope this makes sense, it has been a long day. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654

Re: [ceph-users] How to move OSD form 1TB disk to 2TB disk

2015-09-19 Thread Robert LeBlanc
. Then set the old disk to 'out'. This will keep the OSD participating in the backfills until it is empty. Once the backfill is done, stop the old OSD and remove it from the cluster. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Sat, Sep 19

Re: [ceph-users] multi-datacenter crush map

2015-09-19 Thread Robert LeBlanc
- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Sat, Sep 19, 2015 at 12:54 PM, Wouter De Borger <w.debor...@gmail.com> wrote: > Ok, so if I understand correctly, for replication level 3 or 4 I would have > to use the r

[ceph-users] Delete pool with cache tier

2015-09-18 Thread Robert LeBlanc
to test a high number of clones. Thanks, - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 -BEGIN PGP SIGNATURE- Version: Mailvelope v1.1.0 Comment: https://www.mailvelope.com wsFcBAEBCAAQBQJV/FISCRDmVDuy+mK58QAAsgsP/1WSFOHSkcVy6O582ECf 9JN6

Re: [ceph-users] Delete pool with cache tier

2015-09-18 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Created request http://tracker.ceph.com/issues/13163 - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Fri, Sep 18, 2015 at 12:06 PM, John Spray wrote: > On Fri, Sep 18, 2015 at 7:04

Re: [ceph-users] Software Raid 1 for system disks on storage nodes (not for OSD disks)

2015-09-18 Thread Robert LeBlanc
in this case. My strongest recommendation is not to have swap if it is a pure OSD node. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Fri, Sep 18, 2015 at 8:15 PM, 张冬卯 wrote: > yes, a raid1 system disk is necessary, from my perspect

Re: [ceph-users] Software Raid 1 for system disks on storage nodes (not for OSD disks)

2015-09-18 Thread Robert LeBlanc
the necessary ceph config items (ceph.conf and the OSD bootstrap keys). - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Fri, Sep 18, 2015 at 9:06 AM, Martin Palma wrote: > Hi, > > Is it a good idea to use a software raid for the sy

Re: [ceph-users] cant get cluster to become healthy. "stale+undersized+degraded+peered"

2015-09-17 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 What are your iptable rules? - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Thu, Sep 17, 2015 at 1:01 AM, Stefan Eriksson wrote: > hi here is the info, I have added "ceph osd pool

[ceph-users] pgmap question

2015-09-17 Thread Robert LeBlanc
, it seems to not increment. What am I missing that causes the pgmap to change? Do these pgmap changes have to be computed by the monitors and distributed to the clients? Does the pgmap change constitute a CRUSH algorithm change? Thanks, - Robert LeBlanc PGP Fingerprint 79A2 9CA4

Re: [ceph-users] Hammer reduce recovery impact

2015-09-16 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 I was out of the office for a few days. We have some more hosts to add. I'll send some logs for examination. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Fri, Sep 11, 2015 at 12:45 AM

Re: [ceph-users] question on reusing OSD

2015-09-16 Thread Robert LeBlanc
+5d8b7dYTU5mbqKe59yEPq3yjAOIZPL9PWn1jHfgjylvOMyMw hihd =GGct -END PGP SIGNATURE- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Wed, Sep 16, 2015 at 10:12 AM, John-Paul Robinson <j...@uab.edu> wrote: > Christian, > > Thanks for the feedback. > >

Re: [ceph-users] Straw2 kernel version?

2015-09-10 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 My notes show that it should have landed in 4.1, but I also have written down that it wasn't merged yet. Just trying to get a confirmation on the version that it did land in. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904

[ceph-users] Straw2 kernel version?

2015-09-10 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Has straw2 landed in the kernel and if so which version? Thanks, - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 -BEGIN PGP SIGNATURE- Version: Mailvelope v1.0.2 Comment: https

Re: [ceph-users] Hammer reduce recovery impact

2015-09-10 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Do the recovery options kick in when there is only backfill going on? - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Thu, Sep 10, 2015 at 3:01 PM, Somnath Roy wrote: > Try

Re: [ceph-users] Hammer reduce recovery impact

2015-09-10 Thread Robert LeBlanc
, but there would have to be some logic if the obect was changed as it was being replicated. Maybe just a log in the journal that the objects are starting restore and finished restore, then the journal flush knows if it needs to commit the write? - Robert LeBlanc PGP Fingerprint 79A2 9CA4

[ceph-users] Hammer reduce recovery impact

2015-09-10 Thread Robert LeBlanc
he journal? Thanks, - -------- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 -BEGIN PGP SIGNATURE- Version: Mailvelope v1.0.2 Comment: https://www.mailvelope.com wsFcBAEBCAAQBQJV8e5qCRDmVDuy+mK58QAAaIwQAMN5DJlhrZkqwqsVXaKB nnegQjG6Y02ObLRrg9

Re: [ceph-users] [Problem] I cannot start the OSD daemon

2015-09-08 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 I would check that the /var/lib/ceph/osd/ceph-0/ is mounted and has the file structure for Ceph. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Mon, Sep 7, 2015 at 2:16 AM, Aaron wrote

Re: [ceph-users] Ceph read / write : Terrible performance

2015-09-03 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Just about how funny "ceph problems" are fixed by changing network configurations. - -------- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Thu, Sep 3, 2015 at 11:16 AM, Ian Colle wro

Re: [ceph-users] Ceph SSD CPU Frequency Benchmarks

2015-09-02 Thread Robert LeBlanc
GbqS4v3mWk ge1qukr9et0Su0llUb8Rz3hCDqD6PfMJpquBTAB/kaanS+t0pi+00wxu7zzB zVQ/ =v4sY -END PGP SIGNATURE- -------- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Wed, Sep 2, 2015 at 3:21 AM, Nick Fisk <n...@fisk.me.uk> wrote: > I think this may b

Re: [ceph-users] Ceph SSD CPU Frequency Benchmarks

2015-09-02 Thread Robert LeBlanc
more work to do, but wanted to share my findings. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Wed, Sep 2, 2015 at 9:50 AM, Robert LeBlanc wrote: - -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Thanks for the responses. I forgot

Re: [ceph-users] Ceph SSD CPU Frequency Benchmarks

2015-09-01 Thread Robert LeBlanc
vcziO4s/edQ1koOQm1Fcj5VnbouSqmsHpB5nHeJbGmiKNTBA 9pE/hTph56YRqOE3bq3X/ohjtziL7/e/MVF3VUisDJieaLxV9weLxKIf0W9t L7NMhX7iUIMps5ulA9qzd8qJK6yBa65BVXtk5M0A5oTA/VvxHQT6e5nSZS+Z WLjavMnmSSJT1BQZ5GkVbVqo4UVjndcXEvkBm3+McaGKliO2xvxP+U3nCKpZ js+h =4WAa -END PGP SIGNATURE- Robert LeBlanc PGP Fingerprint 79A2 9CA4

Re: [ceph-users] How should I deal with placement group numbers when reducing number of OSDs

2015-09-01 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 I'm not convinced that a backing pool can be removed from a caching tier. I just haven't been able to get around to trying it. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Tue, Sep 1, 2015

Re: [ceph-users] Ceph Performance Questions with rbd images access by qemu-kvm

2015-09-01 Thread Robert LeBlanc
SSDs with an 8 core Atom (Intel(R) Atom(TM) CPU C2750 @ 2.40GHz) and size=1 and fio with 8 jobs and QD=8 sync,direct 4K read/writes produced 2,600 IOPs. Don't get me wrong, it will help, but don't expect spectacular results. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD

Re: [ceph-users] Accelio & Ceph

2015-09-01 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Accelio and Ceph are still in heavy development and not ready for production. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Tue, Sep 1, 2015 at 10:31 AM, German Anders wrote: Hi cephers

Re: [ceph-users] ceph distributed osd

2015-09-01 Thread Robert LeBlanc
in a cluster, you are doing that for performance, in which case I would say it is not enough. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Tue, Sep 1, 2015 at 5:19 AM, gjprabu wrote: Hi Robert, We are going to use ceph with ocfs2

Re: [ceph-users] How should I deal with placement group numbers when reducing number of OSDs

2015-09-01 Thread Robert LeBlanc
in that pool yet, that may not be feasible for you. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Tue, Sep 1, 2015 at 6:19 AM, Jan Schermer wrote: Hi, we're in the process of changing 480G drives for 1200G drives, which should cut the number

Re: [ceph-users] Disk/Pool Layout

2015-08-28 Thread Robert LeBlanc
. With the Intels, it don't cause that much pain so I'm just going to leave it on. It would be nice for btrfs to get all the bugs shook out to be able to detect bit rot and have a modern file system overall. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2

Re: [ceph-users] 答复: shutdown primary monitor, status of the osds on it will not change, and command like 'rbd create xxx' would block

2015-08-28 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 My next thing would be to turn up debugging on all the monitors and see if the survivors are having a problem forming a quorum. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Thu, Aug 27

Re: [ceph-users] modifying a crush rule

2015-08-28 Thread Robert LeBlanc
on the CRUSH map. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Fri, Aug 28, 2015 at 3:02 AM, Loic Dachary wrote: Hi, Is there a way to modify a ruleset in crush map, without decompiling and recompiling it with crush tool? There are a few

Re: [ceph-users] shutdown primary monitor, status of the osds on it will not change, and command like 'rbd create xxx' would block

2015-08-27 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 The OSDs should be marked down within about 30 seconds. Can you provide additional information such as ceph version and the ceph.conf file. Thanks, - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62

Re: [ceph-users] Defective Gbic brings whole Cluster down

2015-08-27 Thread Robert LeBlanc
they are coming from in that regard, but having Ceph kick out a misbehaving node quickly is appealing as well (there would have to be a way to specify that only so many nodes could be kicked out). - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Thu, Aug

Re: [ceph-users] Defective Gbic brings whole Cluster down

2015-08-27 Thread Robert LeBlanc
if it will be implemented although I do love this idea to help against tail latency. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Thu, Aug 27, 2015 at 12:48 PM, Jan Schermer wrote: Don't kick out the node, just deal with it gracefully and without

Re: [ceph-users] Defective Gbic brings whole Cluster down

2015-08-27 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 +1 :) - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Thu, Aug 27, 2015 at 1:16 PM, Jan Schermer wrote: Well, there's no other way to get reliable performance and SLAs compared

Re: [ceph-users] Disk/Pool Layout

2015-08-27 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On Thu, Aug 27, 2015 at 1:13 PM, Jan Schermer wrote: On 27 Aug 2015, at 20:57, Robert LeBlanc wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On Thu, Aug 27, 2015 at 10:25 AM, Jan Schermer wrote: Some comments inline. A lot

Re: [ceph-users] Disk/Pool Layout

2015-08-27 Thread Robert LeBlanc
- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 SCSI9 (0,7,0) (sdk) - 3.0 TB SEAGATE ST3000NM0023 (Pool-SATA) SCSI9 (0,8,0) (sdl) - 3.0 TB SEAGATE ST3000NM0023 (Pool-SATA) SCSI9 (0,9,0) (sdm) - 3.0 TB SEAGATE ST3000NM0023 (Pool-SATA

Re: [ceph-users] Disk/Pool Layout

2015-08-27 Thread Robert LeBlanc
/94vCCApAgqoHiatpFeKY7cEd6x0V3YOA+j8MDbr5YWJ PCWXWyFpClyp9h9LW0uqlwE3LtYBD0ec3d4nJmqNy5v2sszWJo4UWptRhEdi XOwoda3DNnqoj5G7dmKkSrvXJqSRXA784gIMD0rO7JfXlahjCOsVaYQdo76v U+bQtxGRTXTAV+1ygOL7rElXMyc4Wo6IyUkpE6dnhFPGsi0lZnOih+kM0Wmt wt/B =mSex -END PGP SIGNATURE- Robert LeBlanc PGP

Re: [ceph-users] Disk/Pool Layout

2015-08-27 Thread Robert LeBlanc
barriers disabled, but since we don't have battery backed controllers we backed that setting out. Are you suggesting disabling barriers in all cases? I'd like to discuss the pros/cons of this option. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1

[ceph-users] EXT4 for Production and Journal Question?

2015-08-24 Thread Robert LeBlanc
in the middle of the write with no EXT4 journal, the file system would be repaired and then Ceph would rewrite the last transaction that didn't complete? I'm sure I'm missing something here... Thanks, [1] http://www.spinics.net/lists/ceph-users/msg20839.html Robert LeBlanc PGP

Re: [ceph-users] OSD GHz vs. Cores Question

2015-08-24 Thread Robert LeBlanc
and pulling servers to replace fixed disks, so we are looking at hot swap options. I'll try and do some testing in our lab, but I won't be able to get a very good spread of data due to clock and core limitations in the existing hardware. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4

Re: [ceph-users] Object Storage and POSIX Mix

2015-08-21 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Shouldn't this already be possible with HTTP Range requests? I don't work with RGW or S3 so please ignore me if I'm talking crazy. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Fri, Aug 21

[ceph-users] OSD GHz vs. Cores Question

2015-08-21 Thread Robert LeBlanc
to our performance. Our current processors are Intel(R) Xeon(R) CPU E5-2640 v2 @ 2.00GHz [1] http://www.spinics.net/lists/ceph-users/msg19305.html [2] http://article.gmane.org/gmane.comp.file-systems.ceph.user/22713 Thanks, - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904

Re: [ceph-users] ceph distributed osd

2015-08-19 Thread Robert LeBlanc
/Z0HxDx1mjjJMQdzM+q9+D0m/EYfUpe/DxMqqMI 4t8hD5UPBhkv1sgLYSWyJ5vxLnNOZP7roe2Jp0KwwlSADM9DJb4MEx/1nNcb 6emts8KUhhtb1jsH8gu9Z0tzHcaqNE8N1z9JiveaNCjs6wTp8xbtmDB7p9k4 uZzzoIXTJWrIN/Qqukza+/+8D+WAJ618uwXCCpWi/k83RKt7iy2iv5w4EDTx 25cQ =a+24 -END PGP SIGNATURE- Robert LeBlanc PGP

Re: [ceph-users] Latency impact on RBD performance

2015-08-19 Thread Robert LeBlanc
SIGNATURE- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Wed, Aug 19, 2015 at 8:20 AM, Logan Barfield lbarfi...@tqhosting.com wrote: Hi, We are currently using 2 OSD hosts with SSDs to provide RBD backed volumes for KVM hypervisors

Re: [ceph-users] any recommendation of using EnhanceIO?

2015-08-19 Thread Robert LeBlanc
and found that the average request size was ~12K/~18K (read/write) and ~30%/70% (it looks like I didn't save that spreadsheet to get exact numbers). So, any optimization in smaller I/O sizes would really benefit us - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654

Re: [ceph-users] Check networking first?

2015-07-31 Thread Robert LeBlanc
into Ceph. The monitor can correlate failures and help determine if the problem is related to one host from the CRUSH map. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Thu, Jul 30, 2015 at 11:27 PM, Stijn De Weirdt wrote: wouldn't

Re: [ceph-users] OSD removal is not cleaning entry from osd listing

2015-07-31 Thread Robert LeBlanc
- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Fri, Jul 31, 2015 at 1:15 AM, Mallikarjun Biradar mallikarjuna.bira...@gmail.com wrote: Hi, I had 27 OSD's in my cluster. I removed two of the OSD from (osd.20) host-3 (osd.22) host-6

Re: [ceph-users] dropping old distros: el6, precise 12.04, debian wheezy?

2015-07-30 Thread Robert LeBlanc
+HWBQTZgLi0bxIyBEo7Pg75+f8yzawTpWWx5tM4JR yKkADT8+hid8PK6YwUrsaYnRhdRunAZv9BdvOulXyJ9azcCHSzlJWeYWHEwq krdm =m+W6 -END PGP SIGNATURE- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Thu, Jul 30, 2015 at 7:54 AM, Sage Weil sw...@redhat.com wrote: As time

Re: [ceph-users] questions on editing crushmap for ceph cache tier

2015-07-30 Thread Robert LeBlanc
JGoj01YM60Ul1XJPWatMoM+435hcHrGd0rJ3bi91DOrZmT55X4jjdUA8z/3Y xMZE =Tqaw -END PGP SIGNATURE- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Wed, Jul 29, 2015 at 9:21 PM, van chaofa...@owtware.com wrote: Hi, list, Ceph cache tier seems very promising

Re: [ceph-users] Recovery question

2015-07-30 Thread Robert LeBlanc
. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Thu, Jul 30, 2015 at 12:41 PM, Peter Hinman wrote: For the record, I have been able to recover. Thank you very much for the guidance. I hate searching the web and finding only partial

Re: [ceph-users] Elastic-sized RBD planned?

2015-07-30 Thread Robert LeBlanc
+Zws6 ZWriDFal0ztd0BNEQlCqtlo4hyY/AVies9qB6V4sUL0UuEL/+iTj71/VNh09 RJIURK6KySwxtW97pMGGafw5xPOjpxnm75D6AmovZ6WV68GSxlNpTY/V7CPH dW/U =h5n5 -END PGP SIGNATURE- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Wed, Jul 29, 2015 at 11:32 PM

Re: [ceph-users] Recovery question

2015-07-29 Thread Robert LeBlanc
and start it up. I haven't actually done this, so there still may be some bumps. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Wed, Jul 29, 2015 at 3:44 PM, Peter Hinman wrote: Thanks Robert - Where would that monitor data (database

Re: [ceph-users] Recovery question

2015-07-29 Thread Robert LeBlanc
to be rejoined. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Wed, Jul 29, 2015 at 2:46 PM, Peter Hinman wrote: Hi Greg - So at the moment, I seem to be trying to resolve a permission error. === osd.3 === Mounting xfs on stor-2:/var/lib

Re: [ceph-users] Recovery question

2015-07-29 Thread Robert LeBlanc
. Just make sure you have the correct journal in the same host with the matching OSD disk, udev should do the magic. The OSD logs are your friend if they don't start properly. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Wed, Jul 29, 2015

Re: [ceph-users] Recovery question

2015-07-29 Thread Robert LeBlanc
deal with that later if needed. - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Wed, Jul 29, 2015 at 4:40 PM, Peter Hinman wrote: Ok - that is encouraging. I've believe I've got data from a previous monitor. I see files in a store.db dated

Re: [ceph-users] Algorithm for default pg_count calculation

2015-07-27 Thread Robert LeBlanc
/cCuRMR0eXL44H Or2sbJRwwM2+9kItGOskYjZLX/ELdWV+fpmy/BeJB92U+1pxOWBB2Wv11SY0 uBX2 =zbAW -END PGP SIGNATURE- Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Mon, Jul 27, 2015 at 8:22 AM, Konstantin Danilov kdani...@mirantis.com wrote: Hi all

Re: [ceph-users] Trying to remove osd

2015-07-27 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Did you kill the OSD process, you are still showing 28 OSD up. I'm not sure that should stop you from removing it though. You can also try ceph osd crush rm osd.21 - Robert LeBlanc PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E

Re: [ceph-users] Enclosure power failure pausing client IO till all connected hosts up

2015-07-24 Thread Robert LeBlanc
Sorry, autocorrect. Decompiled crush map. Robert LeBlanc Sent from a mobile device please excuse any typos. On Jul 24, 2015 9:44 AM, Robert LeBlanc rob...@leblancnet.us wrote: Please provide the recompiled crush map. Robert LeBlanc Sent from a mobile device please excuse any typos. On Jul

Re: [ceph-users] CephFS vs RBD

2015-07-22 Thread Robert LeBlanc
are designed to have multiple discrete machines access the file system at the same time. As long as you use a clustered file system on RBD, you will be OK. Now, if that performs better than CephFS, is a question you will have to answer through testing. - Robert LeBlanc PGP

Re: [ceph-users] Unsetting osd_crush_chooseleaf_type = 0

2015-07-17 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Yes you will need to change osd to host as you thought so that copies will be separated between hosts. You will run into problems you see until that is changed. It will cause data movement. - Robert LeBlanc PGP Fingerprint 79A2 9CA4

[ceph-users] Cluster reliability

2015-07-14 Thread Robert LeBlanc
and report back to the list. Thank you, - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 -BEGIN PGP SIGNATURE- Version: Mailvelope v0.13.1 Comment: https://www.mailvelope.com wsFcBAEBCAAQBQJVpUQtCRDmVDuy+mK58QAA3d8P/3tSSFXInMDLde9IZFfE

Re: [ceph-users] How to prefer faster disks in same pool

2015-07-09 Thread Robert LeBlanc
You could also create two roots and two rules and have the primary osd be the 10k drives so that the 7.2k are used primarily for writes. I believe that recipe is on the CRUSH page in the documentation. Robert LeBlanc Sent from a mobile device please excuse any typos. On Jul 9, 2015 10:03 PM

Re: [ceph-users] One of our nodes has logs saying: wrongly marked me down

2015-07-03 Thread Robert LeBlanc
You may not want to set your heartbeat grace so high, it will make I/O block for a long time in the case of a real failure. You may want to look at increasing down reporters instead. Robert LeBlanc Sent from a mobile device please excuse any typos. On Jul 2, 2015 9:39 PM, Tuomas Juntunen

Re: [ceph-users] Switching from tcmalloc

2015-06-24 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Did you see what the effect of just restarting the OSDs before using tcmalloc? I've noticed that there is usually a good drop for us just by restarting them. I don't think it is usually this drastic. - Robert LeBlanc GPG

Re: [ceph-users] Switching from tcmalloc

2015-06-24 Thread Robert LeBlanc
memory) and they try much harder to reuse dirty free pages so memory stays within the thread again reducing locking for memory allocations. I would do some more testing along with what Ben Hines mentioned about overall client performance. - Robert LeBlanc GPG Fingerprint 79A2 9CA4

Re: [ceph-users] Ceph giant installation fails on rhel 7.0

2015-06-11 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Have you configured and enabled the epel repo? - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Thu, Jun 11, 2015 at 6:26 AM, Shambhu Rajak wrote: I am trying to install ceph gaint on rhel

Re: [ceph-users] Beginners ceph journal question

2015-06-09 Thread Robert LeBlanc
/SYEh0164HunDuAb1KjEM tI0dly7JNGPagz3VAsBXaAoxoKXB1wfkdo0I59OmFTDGwoYOLQi5jhQd7csl A7Am =1XtM -END PGP SIGNATURE- Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Tue, Jun 9, 2015 at 8:35 AM, Vickey Singh vickey.singh22...@gmail.com wrote

Re: [ceph-users] rbd_cache, limiting read on high iops around 40k

2015-06-09 Thread Robert LeBlanc
+F0Uvs3xWAxxaIR9r83wMj9qQeBZTKVzQ 1aFIi15KqAwOp12yWCmrqKTeXhjwYQNd8viCQCGN7AQyPglmzfbuEHalVjz4 oSJX =k281 -END PGP SIGNATURE- Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Tue, Jun 9, 2015 at 6:02 AM, Alexandre DERUMIER aderum...@odiso.com wrote

Re: [ceph-users] calculating maximum number of disk and node failure that can be handled by cluster with out data loss

2015-06-09 Thread Robert LeBlanc
(in the same host) or 1 host without data loss, but I/O will block until Ceph can replicate at least one more copy (assuming the min_size 2 stated above). - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Tue, Jun 9, 2015 at 9:53 AM, kevin

Re: [ceph-users] Recovering from multiple OSD failures

2015-06-05 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 When copying to the primary OSD, a deep-scrub has worked for me, but I've not done this exact scenario. Did you try bouncing the OSD process? - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1

Re: [ceph-users] Recovering from multiple OSD failures

2015-06-05 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Did you try to deep-scrub the PG after copying it to 29? - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Thu, Jun 4, 2015 at 10:26 PM, Aaron Ten Clay wrote: Hi Cephers, I recently had

Re: [ceph-users] External XFS Filesystem Journal on OSD

2015-06-04 Thread Robert LeBlanc
i1L0kfNU7eCI4GBdjYkyGINZno1DYG3VrS1u04UIzbp6vS8J6TkZoouh2Vv0 Gp6YzCerc4QjkM4N/4Huy+HhgSjG3aNt5VHGp9/xMGqT6ihzsAHOcPcnx+zp BLT4 =cnp+ -END PGP SIGNATURE- Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Thu, Jun 4, 2015 at 12:23 PM, Lars Marowsky-Bree l

[ceph-users] Ceph asok filling nova open files

2015-06-03 Thread Robert LeBlanc
ceph | wc lsof: WARNING: can't stat() tmpfs file system /run Output information may be incomplete. 10109090 125240 [root@compute3 ~]# virsh list | wc 13 34 558 - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 -BEGIN

Re: [ceph-users] Read Errors and OSD Flapping

2015-06-01 Thread Robert LeBlanc
. It will be a good test as to what to do in this situation as I have a feeling this will most likely happen again. Please post back when you have a result, I'd like to know the outcome. - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 -BEGIN PGP

Re: [ceph-users] TCP or UDP

2015-05-28 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 TCP - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Thu, May 28, 2015 at 2:00 PM, Garg, Pankaj wrote: Hi, Does ceph typically use TCP or UDP or something else for data path

Re: [ceph-users] Memory Allocators and Ceph

2015-05-28 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 I've got some more tests running right now. Once those are done, I'll find a couple of tests that had extreme difference and gather some perf data for them. - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2

Re: [ceph-users] Memory Allocators and Ceph

2015-05-27 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 The workload is on average, 17KB per read request and 13KB per write request with 73% read abd 27% write. This is a web hosting workload. - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Wed

[ceph-users] Memory Allocators and Ceph

2015-05-27 Thread Robert LeBlanc
/spreadsheets/d/1n12IqAOuH2wH-A7Sq5boU8kSEYg_Pl20sPmM0idjj00/edit?usp=sharing Test script is multitest. The real world test is based off of the disk stats of about 100 of our servers which have uptimes of many months. - - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654

Re: [ceph-users] Memory Allocators and Ceph

2015-05-27 Thread Robert LeBlanc
can determine if jemalloc is something that would be worth switching to eventually. - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 -BEGIN PGP SIGNATURE- Version: Mailvelope v0.13.1 Comment: https://www.mailvelope.com

Re: [ceph-users] Replacing OSD disks with SSD journal - journal disk space use

2015-05-26 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 What version of Ceph are you using? I seem to remember an enhancement of ceph-disk for Hammer that is more aggressive in reusing previous partition. - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1

Re: [ceph-users] Blocked requests/ops?

2015-05-26 Thread Robert LeBlanc
like there was some discussion about this on the devel list recently. - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Tue, May 26, 2015 at 4:06 AM, Xavier Serrano wrote: Hello, Thanks for your detailed explanation, and for the pointer

Re: [ceph-users] Performance and CPU load on HP servers running ceph (DL380 G6, should apply to others too)

2015-05-26 Thread Robert LeBlanc
/7A1vlqbisa+iedxaNrqG+wNY0 Q5fT44s+JTWZxCcxadhka0HQ4tguEvTXg83D/PGAkjo6BX7avUv5uiyDGMOw HBWS9/Cy98EH2gDKvWOq2DMDiSvIY+aLZ5W8tFX+D+rsE6DwrvN8fUDxyG6C dsN2 =u7g4 -END PGP SIGNATURE- Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Tue, May 26

Re: [ceph-users] Three tier cache setup

2015-05-21 Thread Robert LeBlanc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Not supported at the moment, but it is in the eventual plans and I think some of the code has been written such that it will help facilitate the development. - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2

Re: [ceph-users] QEMU Venom Vulnerability

2015-05-19 Thread Robert LeBlanc
RPMs As to where to find the SRPMs, I'm not really sure, I come from a Debian background where access to source packages is really easy. - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Tue, May 19, 2015 at 3:47 PM, Georgios Dimitrakakis wrote

Re: [ceph-users] QEMU Venom Vulnerability

2015-05-19 Thread Robert LeBlanc
of packages. - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Tue, May 19, 2015 at 12:33 PM, Georgios Dimitrakakis wrote: I am trying to build the packages manually and I was wondering is the flag --enable-rbd enough to have full Ceph

Re: [ceph-users] Write freeze when writing to rbd image and rebooting one of the nodes

2015-05-14 Thread Robert LeBlanc
+2Rouz4f8uu5irmDjz0ivKL6QCIzBwZbBTdLIwqhf9vCl1ACDWq4U3 DMorcafZbMArdOqlkVhQJiMioZEQ8U/ThY2bInkNdhii/2A35CToyOfMKyfq FLAK5lCiM6gRfCkEBPTwkDR6GNAfgY7khz34adsBRlZPB6a3MeucAGtTjyWt AJIV =bcYd -END PGP SIGNATURE- Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Thu, May 14, 2015

Re: [ceph-users] Write freeze when writing to rbd image and rebooting one of the nodes

2015-05-13 Thread Robert LeBlanc
, never to be fixed. - Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Wed, May 13, 2015 at 10:29 AM, Vasiliy Angapov wrote: Thanks, Sage! In the meanwhile I asked the same question in #Ceph IRC channel and Be_El gave me exactly the same answer

Re: [ceph-users] Write freeze when writing to rbd image and rebooting one of the nodes

2015-05-13 Thread Robert LeBlanc
=c0TU -END PGP SIGNATURE- Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Wed, May 13, 2015 at 2:32 PM, Vasiliy Angapov anga...@gmail.com wrote: Robert, thank you very much for sharing your wisdom with me! Much appreciated. I think

Re: [ceph-users] kernel version for rbd client and hammer tunables

2015-05-12 Thread Robert LeBlanc
+yWjykKqZUCBdkMNu4ZC6M8tVFynbqyqxMof RqsFbVRm+6quen5UiWTJoZvxVJjT5iSmd52RZ06n3e7II5VQwpFgr2qDzW+A spN8nLBzJFKnUbNMqPXvutaf/458yW2bE3ARgs5g+DQjeKy1Nj7Cu5n5H135 Y0ry =xvWE -END PGP SIGNATURE- Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Tue, May 12, 2015 at 2:12 PM

Re: [ceph-users] OSD in ceph.conf

2015-05-11 Thread Robert LeBlanc
disks and mount points, but it is much easier than I anticipated once I used ceph-disk. Robert LeBlanc Sent from a mobile device please excuse any typos. On May 11, 2015 5:32 AM, Georgios Dimitrakakis gior...@acmac.uoc.gr wrote: Hi Robert, just to make sure I got it correctly: Do you mean

Re: [ceph-users] Scrub Error / How does ceph pg repair work?

2015-05-11 Thread Robert LeBlanc
with an error. The idea is to keep rsyncing until the deep-scrub is clean. Be warned that you may be aiming your gun at your foot with this! Robert LeBlanc GPG Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1 On Mon, May 11, 2015 at 2:09 AM, Christian Eichelmann

Re: [ceph-users] How to backup hundreds or thousands of TB

2015-05-07 Thread Robert LeBlanc
On Thu, May 7, 2015 at 5:20 AM, Wido den Hollander w...@42on.com wrote: Aren't snapshots something that should protect you against removal? IF snapshots work properly in CephFS you could create a snapshot every hour. Unless the file is created and removed between snapshots, then the Recycle

Re: [ceph-users] Find out the location of OSD Journal

2015-05-07 Thread Robert LeBlanc
You may also be able to use `ceph-disk list`. On Thu, May 7, 2015 at 3:56 AM, Francois Lafont flafdiv...@free.fr wrote: Hi, Patrik Plank wrote: i cant remember on which drive I install which OSD journal :-|| Is there any command to show this? It's probably not the answer you hope, but

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