[Gluster-users] Rebalance taking > 2 months
Rusty Bower
rusty at rustybower.com
Mon Jul 23 08:19:50 UTC 2018
datanode03 is the newest brick
the bricks had gotten pretty full, which I think might be part of the issue:
- datanode01 /dev/sda1 51T 48T 3.3T 94% /mnt/data
- datanode02 /dev/sda1 51T 48T 3.4T 94% /mnt/data
- datanode03 /dev/md0 128T 4.6T 123T 4% /mnt/data
each of the bricks are on a completely separate disk from the OS
I'll shoot you the log files offline :)
Thanks!
Rusty
On Mon, Jul 23, 2018 at 3:12 AM, Nithya Balachandran <nbalacha at redhat.com>
wrote:
> Hi Rusty,
>
> Sorry I took so long to get back to you.
>
> Which is the newly added brick? I see datanode02 has not picked up any
> files for migration which is odd.
> How full are the individual bricks (df -h ) output.
> Is each of your bricks in a separate partition?
> Can you send me the rebalance logs from all 3 nodes (offline if you
> prefer)?
>
> We can try using scripts to speed up the rebalance if you prefer.
>
> Regards,
> Nithya
>
>
>
> On 16 July 2018 at 22:06, Rusty Bower <rusty at rustybower.com> wrote:
>
>> Thanks for the reply Nithya.
>>
>> 1. glusterfs 4.1.1
>>
>> 2. Volume Name: data
>> Type: Distribute
>> Volume ID: 294d95ce-0ff3-4df9-bd8c-a52fc50442ba
>> Status: Started
>> Snapshot Count: 0
>> Number of Bricks: 3
>> Transport-type: tcp
>> Bricks:
>> Brick1: datanode01:/mnt/data/bricks/data
>> Brick2: datanode02:/mnt/data/bricks/data
>> Brick3: datanode03:/mnt/data/bricks/data
>> Options Reconfigured:
>> performance.readdir-ahead: on
>>
>> 3.
>> Node Rebalanced-files size
>> scanned failures skipped status run time in
>> h:m:s
>> --------- ----------- -----------
>> ----------- ----------- ----------- ------------
>> --------------
>> localhost 36822 11.3GB
>> 50715 0 0 in progress 26:46:17
>> datanode02 0 0Bytes
>> 2852 0 0 in progress 26:46:16
>> datanode03 3128 513.7MB
>> 11442 0 3128 in progress 26:46:17
>> Estimated time left for rebalance to complete : > 2 months. Please try
>> again later.
>> volume rebalance: data: success
>>
>> 4. Directory structure is basically an rsync backup of some old systems
>> as well as all of my personal media. I can elaborate more, but it's a
>> pretty standard filesystem.
>>
>> 5. In some folders there might be up to like 12-15 levels of directories
>> (especially the backups)
>>
>> 6. I'm honestly not sure, I can try to scrounge this number up
>>
>> 7. My guess would be > 100k
>>
>> 8. Most files are pretty large (media files), but there's a lot of small
>> files (metadata and configuration files) as well
>>
>> I've also appended a (moderately sanitized) snippet of the rebalance log
>> (let me know if you need more)
>>
>> [2018-07-16 17:37:59.979003] I [MSGID: 0] [dht-rebalance.c:1799:dht_migrate_file]
>> 0-data-dht: destination for file - /this/is/a/file/path/that/exis
>> ts/wz/wz/Npc.wz/2040036.img.xml is changed to - data-client-2
>> [2018-07-16 17:38:00.004262] I [MSGID: 109022]
>> [dht-rebalance.c:2274:dht_migrate_file] 0-data-dht: completed migration
>> of /this/is/a/file/path/that/exists/wz/wz/Npc.wz/2112002.img.xml from
>> subvolume data-client-0 to data-client-2
>> [2018-07-16 17:38:00.725582] I [dht-rebalance.c:4982:gf_defrag_get_estimates_based_on_size]
>> 0-glusterfs: TIME: (size) total_processed=43108305980 tmp_cnt =
>> 55419279917056,rate_processed=446597.869797, elapsed = 96526.000000
>> [2018-07-16 17:38:00.725641] I [dht-rebalance.c:5130:gf_defrag_status_get]
>> 0-glusterfs: TIME: Estimated total time to complete (size)= 124092127
>> seconds, seconds left = 123995601
>> [2018-07-16 17:38:00.725709] I [MSGID: 109028]
>> [dht-rebalance.c:5210:gf_defrag_status_get] 0-glusterfs: Rebalance is in
>> progress. Time taken is 96526.00 secs
>> [2018-07-16 17:38:00.725738] I [MSGID: 109028]
>> [dht-rebalance.c:5214:gf_defrag_status_get] 0-glusterfs: Files migrated:
>> 36876, size: 12270259289, lookups: 50715, failures: 0, skipped: 0
>> [2018-07-16 17:38:02.769121] I [dht-rebalance.c:4982:gf_defrag_get_estimates_based_on_size]
>> 0-glusterfs: TIME: (size) total_processed=43108305980 tmp_cnt =
>> 55419279917056,rate_processed=446588.616567, elapsed = 96528.000000
>> [2018-07-16 17:38:02.769207] I [dht-rebalance.c:5130:gf_defrag_status_get]
>> 0-glusterfs: TIME: Estimated total time to complete (size)= 124094698
>> seconds, seconds left = 123998170
>> [2018-07-16 17:38:02.769263] I [MSGID: 109028]
>> [dht-rebalance.c:5210:gf_defrag_status_get] 0-glusterfs: Rebalance is in
>> progress. Time taken is 96528.00 secs
>> [2018-07-16 17:38:02.769286] I [MSGID: 109028]
>> [dht-rebalance.c:5214:gf_defrag_status_get] 0-glusterfs: Files migrated:
>> 36876, size: 12270259289, lookups: 50715, failures: 0, skipped: 0
>> [2018-07-16 17:38:03.410469] I [dht-rebalance.c:1645:dht_migrate_file]
>> 0-data-dht: /this/is/a/file/path/that/exists/wz/wz/Npc.wz/9201002.img.xml:
>> attempting to move from data-client-0 to data-client-2
>> [2018-07-16 17:38:03.416127] I [MSGID: 109022]
>> [dht-rebalance.c:2274:dht_migrate_file] 0-data-dht: completed migration
>> of /this/is/a/file/path/that/exists/wz/wz/Npc.wz/2040036.img.xml from
>> subvolume data-client-0 to data-client-2
>> [2018-07-16 17:38:04.738885] I [dht-rebalance.c:1645:dht_migrate_file]
>> 0-data-dht: /this/is/a/file/path/that/exists/wz/wz/Npc.wz/9110012.img.xml:
>> attempting to move from data-client-0 to data-client-2
>> [2018-07-16 17:38:04.745722] I [MSGID: 109022]
>> [dht-rebalance.c:2274:dht_migrate_file] 0-data-dht: completed migration
>> of /this/is/a/file/path/that/exists/wz/wz/Npc.wz/9201002.img.xml from
>> subvolume data-client-0 to data-client-2
>> [2018-07-16 17:38:04.812368] I [dht-rebalance.c:4982:gf_defrag_get_estimates_based_on_size]
>> 0-glusterfs: TIME: (size) total_processed=43108308134 tmp_cnt =
>> 55419279917056,rate_processed=446579.386035, elapsed = 96530.000000
>> [2018-07-16 17:38:04.812417] I [dht-rebalance.c:5130:gf_defrag_status_get]
>> 0-glusterfs: TIME: Estimated total time to complete (size)= 124097263
>> seconds, seconds left = 124000733
>> [2018-07-16 17:38:04.812465] I [MSGID: 109028]
>> [dht-rebalance.c:5210:gf_defrag_status_get] 0-glusterfs: Rebalance is in
>> progress. Time taken is 96530.00 secs
>> [2018-07-16 17:38:04.812489] I [MSGID: 109028]
>> [dht-rebalance.c:5214:gf_defrag_status_get] 0-glusterfs: Files migrated:
>> 36877, size: 12270261443, lookups: 50715, failures: 0, skipped: 0
>> [2018-07-16 17:38:04.992413] I [dht-rebalance.c:1645:dht_migrate_file]
>> 0-data-dht: /this/is/a/file/path/that/exists/wz/wz/Npc.wz/2050000.img.xml:
>> attempting to move from data-client-0 to data-client-2
>> [2018-07-16 17:38:04.994122] I [MSGID: 109022]
>> [dht-rebalance.c:2274:dht_migrate_file] 0-data-dht: completed migration
>> of /this/is/a/file/path/that/exists/wz/wz/Npc.wz/9110012.img.xml from
>> subvolume data-client-0 to data-client-2
>> [2018-07-16 17:38:06.855618] I [dht-rebalance.c:4982:gf_defrag_get_estimates_based_on_size]
>> 0-glusterfs: TIME: (size) total_processed=43108318798 tmp_cnt =
>> 55419279917056,rate_processed=446570.244043, elapsed = 96532.000000
>> [2018-07-16 17:38:06.855719] I [dht-rebalance.c:5130:gf_defrag_status_get]
>> 0-glusterfs: TIME: Estimated total time to complete (size)= 124099804
>> seconds, seconds left = 124003272
>> [2018-07-16 17:38:06.855770] I [MSGID: 109028]
>> [dht-rebalance.c:5210:gf_defrag_status_get] 0-glusterfs: Rebalance is in
>> progress. Time taken is 96532.00 secs
>> [2018-07-16 17:38:06.855793] I [MSGID: 109028]
>> [dht-rebalance.c:5214:gf_defrag_status_get] 0-glusterfs: Files migrated:
>> 36879, size: 12270266602, lookups: 50715, failures: 0, skipped: 0
>> [2018-07-16 17:38:08.511064] I [dht-rebalance.c:1645:dht_migrate_file]
>> 0-data-dht: /this/is/a/file/path/that/exists/wz/wz/Npc.wz/9201055.img.xml:
>> attempting to move from data-client-0 to data-client-2
>> [2018-07-16 17:38:08.533029] I [MSGID: 109022]
>> [dht-rebalance.c:2274:dht_migrate_file] 0-data-dht: completed migration
>> of /this/is/a/file/path/that/exists/wz/wz/Npc.wz/2050000.img.xml from
>> subvolume data-client-0 to data-client-2
>> [2018-07-16 17:38:08.899708] I [dht-rebalance.c:4982:gf_defrag_get_estimates_based_on_size]
>> 0-glusterfs: TIME: (size) total_processed=43108318798 tmp_cnt =
>> 55419279917056,rate_processed=446560.991961, elapsed = 96534.000000
>> [2018-07-16 17:38:08.899791] I [dht-rebalance.c:5130:gf_defrag_status_get]
>> 0-glusterfs: TIME: Estimated total time to complete (size)= 124102375
>> seconds, seconds left = 124005841
>> [2018-07-16 17:38:08.899842] I [MSGID: 109028]
>> [dht-rebalance.c:5210:gf_defrag_status_get] 0-glusterfs: Rebalance is in
>> progress. Time taken is 96534.00 secs
>> [2018-07-16 17:38:08.899865] I [MSGID: 109028]
>> [dht-rebalance.c:5214:gf_defrag_status_get] 0-glusterfs: Files migrated:
>> 36879, size: 12270266602, lookups: 50715, failures: 0, skipped: 0
>>
>>
>> On Mon, Jul 16, 2018 at 7:37 AM, Nithya Balachandran <nbalacha at redhat.com
>> > wrote:
>>
>>> If possible, please send the rebalance logs as well.
>>>
>>>
>>> On 16 July 2018 at 10:14, Nithya Balachandran <nbalacha at redhat.com>
>>> wrote:
>>>
>>>> Hi Rusty,
>>>>
>>>> We need the following information:
>>>>
>>>> 1. The exact gluster version you are running
>>>> 2. gluster volume info <volname>
>>>> 3. gluster rebalance status
>>>> 4. Information on the directory structure and file locations on
>>>> your volume.
>>>> 5. How many levels of directories
>>>> 6. How many files and directories in each level
>>>> 7. How many directories and files in total (a rough estimate)
>>>> 8. Average file size
>>>>
>>>> Please note that having a rebalance running in the background should
>>>> not affect your volume access in any way. However I would like to know why
>>>> only 6000 files have been scanned in 6 hours.
>>>>
>>>> Regards,
>>>> Nithya
>>>>
>>>>
>>>> On 16 July 2018 at 06:13, Rusty Bower <rusty at rustybower.com> wrote:
>>>>
>>>>> Hey folks,
>>>>>
>>>>> I just added a new brick to my existing gluster volume, but *gluster
>>>>> volume rebalance data status* is telling me the following: Estimated
>>>>> time left for rebalance to complete : > 2 months. Please try again later.
>>>>>
>>>>> I already did a fix-mapping, but this thing is absolutely crawling
>>>>> trying to rebalance everything (last estimate was ~40 years)
>>>>>
>>>>> Any thoughts on if this is a bug, or ways to speed this up? It's
>>>>> taking ~6 hours to scan 6000 files, which seems unreasonably slow.
>>>>>
>>>>> Thanks
>>>>> Rusty
>>>>>
>>>>> _______________________________________________
>>>>> Gluster-users mailing list
>>>>> Gluster-users at gluster.org
>>>>> https://lists.gluster.org/mailman/listinfo/gluster-users
>>>>>
>>>>
>>>>
>>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20180723/76d24716/attachment.html>
More information about the Gluster-users
mailing list