23 Dec
2020
23 Dec
'20
9:17 p.m.
I have enabled bluefs_buffered_io on some of my OSD nodes and disable some
others based on the server node situation and I'm experiencing this issue
on both of them!
How can manual RocksDB compaction help?
Can you please share with me the topic names for this issue on the mailing
list?
On Wed, Dec 23, 2020 at 7:04 PM Igor Fedotov <ifedotov(a)suse.de> wrote:
Hi Seena,
one of the frequent cause for such a timeout is slow RocksDB
operationing. Which in turn might be caused by bluefs_buffered_io set to
false and/or DB "fragmentation" after massive data removal.
Hence the potential workarounds are adjusting bluefs_buffered_io and
manual RocksDB compaction.
This topic has been discussed in this mailing list and relevant tickets
multiple times.
Thanks,
Igor
On 12/23/2020 3:24 PM, Seena Fallah wrote:
Hi,
All my OSD nodes in the SSD tier are getting heartbeat_map timed out
randomly and I don't find why!
7ff2ed3f2700 1 heartbeat_map is_healthy 'OSD::osd_op_tp thread
0x7ff2c8943700' had timed out after 15
It occurs many times in a day and causes my cluster to be down.
Is there any way to find why the OSDs get time out? I don't think it's
because of heartbeat and there is an issue with OSD that came to the
heartbeat to be timeout because ODSs don't suicide and OSDs get too slow
and cause downtime on RBD and S3 gateway because the queue is full!
Thanks.
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