[Samba] Slow response after moving to ver 4.10
rpenny at samba.org
Wed Jun 30 19:59:33 UTC 2021
On Wed, 2021-06-30 at 19:45 +0000, Jim Brand via samba wrote:
> New CentOS 7 file server, samba version 4.10.4-11 with 2,000 shares
> on multiple Gluster mounts. Roughly 200-300 concurrent users. We
> recently migrated this working
> setup from a CentOS 5 server (Samba 3) using LDAP. A few weeks
> later we started noticing sporadic slowdowns on our Windows 10 PC
> Directory listings that normally take a few seconds can take many
> minutes if they finish at all.
> Nothing jumps out in the Samba logs. A local linux find on the
> affected shares does not vary much, about a minute. I've run
> smbclient 'recurse;ls' on the share(s) both locally and
> from another Linux host. Local and remote search times (good and
> bad) agree closely: A few minutes is normal but can take an hour or
> more when we're having problems. Gluster or network is not
> suspect. Sometimes cycling smb fixes it for a while but not today.
> This happens mostly during business hours but the server is always
> 95% idle. Any ideas or what to look for in the logs would be
> idmap config MYGROUP : range = 1034-2999999
> idmap config * : range = 10000-15000
Your ranges overlap, this isn't allowed.
How did you migrate from the old server ?
I suppose that I should also mention that from a Samba point of view
4.10.x is EOL.
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