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Igor Fedotov's activity

From 02/19/2019 to 03/20/2019

03/20/2019

10:55 AM bluestore Bug #38738: ceph ssd osd latency increase over time, until restart
hoan nv wrote:
> do you have temporary solutions for this issue.
>
> I tried move device class from ssd to hdd bu...
Igor Fedotov

03/19/2019

05:51 PM bluestore Bug #38795: fsck on mkfs breaks ObjectStore/StoreTestSpecificAUSize.BlobReuseOnOverwrite
The issue persist till the second cache rebalance occurs after fsck completion. So a workaround for UT might be to wa... Igor Fedotov

03/18/2019

12:20 PM bluestore Bug #38795 (Resolved): fsck on mkfs breaks ObjectStore/StoreTestSpecificAUSize.BlobReuseOnOverwrite
if bluestore_fsck_on_mkfs is enabled the test case fails in Mimic and Luminous:
[ RUN ] ObjectStore/StoreTestSp...
Igor Fedotov

03/15/2019

12:52 PM bluestore Bug #38761 (Fix Under Review): Bitmap allocator might fail to return contiguous chunk despite hav...
Igor Fedotov
11:16 AM bluestore Bug #38761 (Resolved): Bitmap allocator might fail to return contiguous chunk despite having enou...
This happens when allocator has contiguous 4GB-aligned chunks to allocate from only. Internal stuff searching for fre... Igor Fedotov
12:51 PM bluestore Bug #38760 (Fix Under Review): BlueFS might request more space from slow device than is actually ...
Igor Fedotov
11:09 AM bluestore Bug #38760 (Resolved): BlueFS might request more space from slow device than is actually needed
When expanding slow device BlueFS has two sizes - one that it actually need for the current action and one that is a ... Igor Fedotov

03/14/2019

11:52 AM bluestore Bug #38738: ceph ssd osd latency increase over time, until restart
Anton,
there is a thread named "ceph osd commit latency increase over time, until
restart" at ceph-users mail li...
Igor Fedotov

03/11/2019

08:18 PM bluestore Bug #38272 (Fix Under Review): "no available blob id" assertion might occur
Igor Fedotov
07:54 PM bluestore Bug #38395 (Resolved): luminous: write following remove might access previous onode
Igor Fedotov

03/05/2019

03:18 PM bluestore Bug #38489: bluestore_prefer_deferred_size_hdd units are not clear
I've just verified deferred writes behavior for 4M writes using objectstore FIO plugin.
Indeed bluestore splits writ...
Igor Fedotov

03/01/2019

10:46 AM bluestore Bug #25077 (New): Occasional assertion in ObjectStore/StoreTest.HashCollisionTest/2
Igor Fedotov
10:46 AM bluestore Bug #25077: Occasional assertion in ObjectStore/StoreTest.HashCollisionTest/2
Stefan Kooman wrote:
> @Igor Fedotov:
>
> We are using ceph balancer to get PGs balanced accross the cluster. The...
Igor Fedotov

02/28/2019

02:41 PM bluestore Bug #36482: High amount of Read I/O on BlueFS/DB when listing omap keys
We've got another occurrence for this issue too.
Omap listing for specific onode consistently takes ~2 mins while d...
Igor Fedotov
02:19 PM bluestore Bug #36482: High amount of Read I/O on BlueFS/DB when listing omap keys
I think this is the same issue:
https://marc.info/?l=ceph-devel&m=155134206210976&w=2
Igor Fedotov
09:55 AM bluestore Bug #34526: OSD crash in KernelDevice::direct_read_unaligned while scrubbing
IMO this is BlueStore (or more precisely BlueFS and/or RocksDB) related.
And I think it's duplicate of #36482
O...
Igor Fedotov

02/26/2019

02:43 PM bluestore Bug #25077: Occasional assertion in ObjectStore/StoreTest.HashCollisionTest/2
Stefan, to make sure (at our best) this is exactly the same bug, could you please check PG states with ceph-objectsto... Igor Fedotov

02/20/2019

11:15 AM bluestore Bug #38395 (Fix Under Review): luminous: write following remove might access previous onode
Igor Fedotov
10:35 AM bluestore Bug #38395: luminous: write following remove might access previous onode
Igor Fedotov
10:25 AM bluestore Bug #38395 (Resolved): luminous: write following remove might access previous onode
So the sequence is as follows:
T1:
remove A
T2:
touch A
write A
In Luminous there is a chance that A is rem...
Igor Fedotov
 

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