Thanks for your help 😊 Kind regards, Glen Baars From: Jason Dillaman <jdill...@redhat.com> Sent: Thursday, 16 August 2018 10:21 PM To: Glen Baars <g...@onsitecomputers.com.au> Cc: ceph-users <ceph-users@lists.ceph.com> Subject: Re: [ceph-users] RBD journal feature
On Thu, Aug 16, 2018 at 2:37 AM Glen Baars <g...@onsitecomputers.com.au<mailto:g...@onsitecomputers.com.au>> wrote: Is there any workaround that you can think of to correctly enable journaling on locked images? You could add the "rbd journal pool = XYZ" configuration option to the ceph.conf on the hosts currently using the images (or use 'rbd image-meta set <image-spec> conf_rbd_journal_pool SSDPOOL' on each image), restart/live-migrate the affected VMs(?) to pick up the config changes, and enable journaling. Kind regards, Glen Baars From: ceph-users <ceph-users-boun...@lists.ceph.com<mailto:ceph-users-boun...@lists.ceph.com>> On Behalf Of Glen Baars Sent: Tuesday, 14 August 2018 9:36 PM To: dilla...@redhat.com<mailto:dilla...@redhat.com> Cc: ceph-users <ceph-users@lists.ceph.com<mailto:ceph-users@lists.ceph.com>> Subject: Re: [ceph-users] RBD journal feature Hello Jason, Thanks for your help. Here is the output you asked for also. https://pastebin.com/dKH6mpwk Kind regards, Glen Baars From: Jason Dillaman <jdill...@redhat.com<mailto:jdill...@redhat.com>> Sent: Tuesday, 14 August 2018 9:33 PM To: Glen Baars <g...@onsitecomputers.com.au<mailto:g...@onsitecomputers.com.au>> Cc: ceph-users <ceph-users@lists.ceph.com<mailto:ceph-users@lists.ceph.com>> Subject: Re: [ceph-users] RBD journal feature On Tue, Aug 14, 2018 at 9:31 AM Glen Baars <g...@onsitecomputers.com.au<mailto:g...@onsitecomputers.com.au>> wrote: Hello Jason, I have now narrowed it down. If the image has an exclusive lock – the journal doesn’t go on the correct pool. OK, that makes sense. If you have an active client on the image holding the lock, the request to enable journaling is sent over to that client but it's missing all the journal options. I'll open a tracker ticket to fix the issue. Thanks. Kind regards, Glen Baars From: Jason Dillaman <jdill...@redhat.com<mailto:jdill...@redhat.com>> Sent: Tuesday, 14 August 2018 9:29 PM To: Glen Baars <g...@onsitecomputers.com.au<mailto:g...@onsitecomputers.com.au>> Cc: ceph-users <ceph-users@lists.ceph.com<mailto:ceph-users@lists.ceph.com>> Subject: Re: [ceph-users] RBD journal feature On Tue, Aug 14, 2018 at 9:19 AM Glen Baars <g...@onsitecomputers.com.au<mailto:g...@onsitecomputers.com.au>> wrote: Hello Jason, I have tried with and without ‘rbd journal pool = rbd’ in the ceph.conf. it doesn’t seem to make a difference. It should be SSDPOOL, but regardless, I am at a loss as to why it's not working for you. You can try appending "--debug-rbd=20" to the end of the "rbd feature enable" command and provide the generated logs in a pastebin link. Also, here is the output: rbd image-meta list RBD-HDD/2ef34a96-27e0-4ae7-9888-fd33c38f657a There are 0 metadata on this image. Kind regards, Glen Baars From: Jason Dillaman <jdill...@redhat.com<mailto:jdill...@redhat.com>> Sent: Tuesday, 14 August 2018 9:00 PM To: Glen Baars <g...@onsitecomputers.com.au<mailto:g...@onsitecomputers.com.au>> Cc: dillaman <dilla...@redhat.com<mailto:dilla...@redhat.com>>; ceph-users <ceph-users@lists.ceph.com<mailto:ceph-users@lists.ceph.com>> Subject: Re: [ceph-users] RBD journal feature I tried w/ a rbd CLI from 12.2.7 and I still don't have an issue enabling journaling on a different pool: $ rbd info rbd/foo rbd image 'foo': size 1024 MB in 256 objects order 22 (4096 kB objects) block_name_prefix: rbd_data.101e6b8b4567 format: 2 features: layering, exclusive-lock, object-map, fast-diff, deep-flatten flags: create_timestamp: Tue Aug 14 08:51:19 2018 $ rbd feature enable rbd/foo journaling --journal-pool rbd_ssd $ rbd journal info --pool rbd --image foo rbd journal '101e6b8b4567': header_oid: journal.101e6b8b4567 object_oid_prefix: journal_data.1.101e6b8b4567. order: 24 (16384 kB objects) splay_width: 4 object_pool: rbd_ssd Can you please run "rbd image-meta list <image-spec>" to see if you are overwriting any configuration settings? Do you have any client configuration overrides in your "/etc/ceph/ceph.conf"? On Tue, Aug 14, 2018 at 8:25 AM Glen Baars <g...@onsitecomputers.com.au<mailto:g...@onsitecomputers.com.au>> wrote: Hello Jason, I will also complete testing of a few combinations tomorrow to try and isolate the issue now that we can get it to work with a new image. The cluster started out at 12.2.3 bluestore so there shouldn’t be any old issues from previous versions. Kind regards, Glen Baars From: Jason Dillaman <jdill...@redhat.com<mailto:jdill...@redhat.com>> Sent: Tuesday, 14 August 2018 7:43 PM To: Glen Baars <g...@onsitecomputers.com.au<mailto:g...@onsitecomputers.com.au>> Cc: dillaman <dilla...@redhat.com<mailto:dilla...@redhat.com>>; ceph-users <ceph-users@lists.ceph.com<mailto:ceph-users@lists.ceph.com>> Subject: Re: [ceph-users] RBD journal feature On Tue, Aug 14, 2018 at 4:08 AM Glen Baars <g...@onsitecomputers.com.au<mailto:g...@onsitecomputers.com.au>> wrote: Hello Jason, I can confirm that your tests work on our cluster with a newly created image. We still can’t get the current images to use a different object pool. Do you think that maybe another feature is incompatible with this feature? Below is a log of the issue. I wouldn't think so. I used master branch for my testing but I'll try 12.2.7 just in case it's an issue that's only in the luminous release. :~# rbd info RBD_HDD/2ef34a96-27e0-4ae7-9888-fd33c38f657a rbd image '2ef34a96-27e0-4ae7-9888-fd33c38f657a': size 51200 MB in 12800 objects order 22 (4096 kB objects) block_name_prefix: rbd_data.37c8974b0dc51 format: 2 features: layering, exclusive-lock, object-map, fast-diff, deep-flatten flags: create_timestamp: Sat May 5 11:39:07 2018 :~# rbd journal info --pool RBD_HDD --image 2ef34a96-27e0-4ae7-9888-fd33c38f657a rbd: journaling is not enabled for image 2ef34a96-27e0-4ae7-9888-fd33c38f657a :~# rbd feature enable RBD_HDD/2ef34a96-27e0-4ae7-9888-fd33c38f657a journaling --journal-pool RBD_SSD :~# rbd journal info --pool RBD_HDD --image 2ef34a96-27e0-4ae7-9888-fd33c38f657a rbd journal '37c8974b0dc51': header_oid: journal.37c8974b0dc51 object_oid_prefix: journal_data.1.37c8974b0dc51. order: 24 (16384 kB objects) splay_width: 4 ***************<NOTE NO object_pool> **************** :~# rbd info RBD_HDD/2ef34a96-27e0-4ae7-9888-fd33c38f657a rbd image '2ef34a96-27e0-4ae7-9888-fd33c38f657a': size 51200 MB in 12800 objects order 22 (4096 kB objects) block_name_prefix: rbd_data.37c8974b0dc51 format: 2 features: layering, exclusive-lock, object-map, fast-diff, deep-flatten, journaling flags: create_timestamp: Sat May 5 11:39:07 2018 journal: 37c8974b0dc51 mirroring state: disabled Kind regards, Glen Baars From: Jason Dillaman <jdill...@redhat.com<mailto:jdill...@redhat.com>> Sent: Tuesday, 14 August 2018 12:04 AM To: Glen Baars <g...@onsitecomputers.com.au<mailto:g...@onsitecomputers.com.au>> Cc: dillaman <dilla...@redhat.com<mailto:dilla...@redhat.com>>; ceph-users <ceph-users@lists.ceph.com<mailto:ceph-users@lists.ceph.com>> Subject: Re: [ceph-users] RBD journal feature On Sun, Aug 12, 2018 at 12:13 AM Glen Baars <g...@onsitecomputers.com.au<mailto:g...@onsitecomputers.com.au>> wrote: Hello Jason, Interesting, I used ‘rados ls’ to view the SSDPOOL and can’t see any objects. Is this the correct way to view the journal objects? You won't see any journal objects in the SSDPOOL until you issue a write: $ rbd create --size 1G --image-feature exclusive-lock rbd_hdd/test $ rbd bench --io-type=write --io-pattern=rand --io-size=4K --io-total=16M rbd_hdd/test --rbd-cache=false bench type write io_size 4096 io_threads 16 bytes 16777216 pattern random SEC OPS OPS/SEC BYTES/SEC 1 320 332.01 1359896.98 2 736 360.83 1477975.96 3 1040 351.17 1438393.57 4 1392 350.94 1437437.51 5 1744 350.24 1434576.94 6 2080 349.82 1432866.06 7 2416 341.73 1399731.23 8 2784 348.37 1426930.69 9 3152 347.40 1422966.67 10 3520 356.04 1458356.70 11 3920 361.34 1480050.97 elapsed: 11 ops: 4096 ops/sec: 353.61 bytes/sec: 1448392.06 $ rbd feature enable rbd_hdd/test journaling --journal-pool rbd_ssd $ rbd journal info --pool rbd_hdd --image test rbd journal '10746b8b4567': header_oid: journal.10746b8b4567 object_oid_prefix: journal_data.2.10746b8b4567. order: 24 (16 MiB objects) splay_width: 4 object_pool: rbd_ssd $ rbd bench --io-type=write --io-pattern=rand --io-size=4K --io-total=16M rbd_hdd/test --rbd-cache=false bench type write io_size 4096 io_threads 16 bytes 16777216 pattern random SEC OPS OPS/SEC BYTES/SEC 1 240 248.54 1018005.17 2 512 263.47 1079154.06 3 768 258.74 1059792.10 4 1040 258.50 1058812.60 5 1312 258.06 1057001.34 6 1536 258.21 1057633.14 7 1792 253.81 1039604.73 8 2032 253.66 1038971.01 9 2256 241.41 988800.93 10 2480 237.87 974335.65 11 2752 239.41 980624.20 12 2992 239.61 981440.94 13 3200 233.13 954887.84 14 3440 237.36 972237.80 15 3680 239.47 980853.37 16 3920 238.75 977920.70 elapsed: 16 ops: 4096 ops/sec: 245.04 bytes/sec: 1003692.81 $ rados -p rbd_ssd ls | grep journal_data.2.10746b8b4567. journal_data.2.10746b8b4567.3 journal_data.2.10746b8b4567.0 journal_data.2.10746b8b4567.2 journal_data.2.10746b8b4567.1 rbd feature enable SLOWPOOL/RBDImage journaling --journal-pool SSDPOOL The symptoms that we are experiencing is a huge decrease in write speed ( 1QD 128K writes from 160MB/s down to 14MB/s ). We see no improvement when moving the journal to SSDPOOL ( but we don’t think it is really moving ) If you are trying to optimize for 128KiB writes, you might need to tweak the "rbd_journal_max_payload_bytes" setting since it currently is defaulted to split journal write events into a maximum of 16KiB payload [1] in order to optimize the worst-case memory usage of the rbd-mirror daemon for environments w/ hundreds or thousands of replicated images. Kind regards, Glen Baars From: Jason Dillaman <jdill...@redhat.com<mailto:jdill...@redhat.com>> Sent: Saturday, 11 August 2018 11:28 PM To: Glen Baars <g...@onsitecomputers.com.au<mailto:g...@onsitecomputers.com.au>> Cc: ceph-users <ceph-users@lists.ceph.com<mailto:ceph-users@lists.ceph.com>> Subject: Re: [ceph-users] RBD journal feature On Fri, Aug 10, 2018 at 3:01 AM Glen Baars <g...@onsitecomputers.com.au<mailto:g...@onsitecomputers.com.au>> wrote: Hello Ceph Users, I am trying to implement image journals for our RBD images ( required for mirroring ) rbd feature enable SLOWPOOL/RBDImage journaling --journal-pool SSDPOOL When we run the above command we still find the journal on the SLOWPOOL and not on the SSDPOOL. We are running 12.2.7 and all bluestore. We have also tried the ceph.conf option (rbd journal pool = SSDPOOL ) Has anyone else gotten this working? The journal header was on SLOWPOOL or the journal data objects? I would expect that the journal metadata header is located on SLOWPOOL but all data objects should be created on SSDPOOL as needed. Kind regards, Glen Baars This e-mail is intended solely for the benefit of the addressee(s) and any other named recipient. It is confidential and may contain legally privileged or confidential information. If you are not the recipient, any use, distribution, disclosure or copying of this e-mail is prohibited. The confidentiality and legal privilege attached to this communication is not waived or lost by reason of the mistaken transmission or delivery to you. If you have received this e-mail in error, please notify us immediately. _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com<mailto:ceph-users@lists.ceph.com> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com -- Jason This e-mail is intended solely for the benefit of the addressee(s) and any other named recipient. It is confidential and may contain legally privileged or confidential information. If you are not the recipient, any use, distribution, disclosure or copying of this e-mail is prohibited. The confidentiality and legal privilege attached to this communication is not waived or lost by reason of the mistaken transmission or delivery to you. If you have received this e-mail in error, please notify us immediately. [1] https://github.com/ceph/ceph/blob/master/src/common/options.cc#L6600 -- Jason This e-mail is intended solely for the benefit of the addressee(s) and any other named recipient. It is confidential and may contain legally privileged or confidential information. If you are not the recipient, any use, distribution, disclosure or copying of this e-mail is prohibited. The confidentiality and legal privilege attached to this communication is not waived or lost by reason of the mistaken transmission or delivery to you. If you have received this e-mail in error, please notify us immediately. -- Jason This e-mail is intended solely for the benefit of the addressee(s) and any other named recipient. It is confidential and may contain legally privileged or confidential information. If you are not the recipient, any use, distribution, disclosure or copying of this e-mail is prohibited. The confidentiality and legal privilege attached to this communication is not waived or lost by reason of the mistaken transmission or delivery to you. If you have received this e-mail in error, please notify us immediately. -- Jason This e-mail is intended solely for the benefit of the addressee(s) and any other named recipient. It is confidential and may contain legally privileged or confidential information. If you are not the recipient, any use, distribution, disclosure or copying of this e-mail is prohibited. The confidentiality and legal privilege attached to this communication is not waived or lost by reason of the mistaken transmission or delivery to you. If you have received this e-mail in error, please notify us immediately. -- Jason This e-mail is intended solely for the benefit of the addressee(s) and any other named recipient. It is confidential and may contain legally privileged or confidential information. If you are not the recipient, any use, distribution, disclosure or copying of this e-mail is prohibited. The confidentiality and legal privilege attached to this communication is not waived or lost by reason of the mistaken transmission or delivery to you. If you have received this e-mail in error, please notify us immediately. -- Jason This e-mail is intended solely for the benefit of the addressee(s) and any other named recipient. It is confidential and may contain legally privileged or confidential information. If you are not the recipient, any use, distribution, disclosure or copying of this e-mail is prohibited. The confidentiality and legal privilege attached to this communication is not waived or lost by reason of the mistaken transmission or delivery to you. If you have received this e-mail in error, please notify us immediately. This e-mail is intended solely for the benefit of the addressee(s) and any other named recipient. It is confidential and may contain legally privileged or confidential information. If you are not the recipient, any use, distribution, disclosure or copying of this e-mail is prohibited. The confidentiality and legal privilege attached to this communication is not waived or lost by reason of the mistaken transmission or delivery to you. If you have received this e-mail in error, please notify us immediately. -- Jason This e-mail is intended solely for the benefit of the addressee(s) and any other named recipient. It is confidential and may contain legally privileged or confidential information. If you are not the recipient, any use, distribution, disclosure or copying of this e-mail is prohibited. The confidentiality and legal privilege attached to this communication is not waived or lost by reason of the mistaken transmission or delivery to you. If you have received this e-mail in error, please notify us immediately.
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