enterprise-support team mailing list archive

[Eric Altman <eric@xxxxxxxxxxxxx>]

Public bug reported:

On Ubuntu 16.04.02 running SAMBA 4.3.11, various OS X (or macOS now)
clients have issues with our SAMBA server which uses ZFS as the
filesystem.

During their regular work, it seems nothing that can be pinned down,
every share the system is connected to will disconnect with a
notification from macOS. This occurs on our Yosemite, El Cap, and Sierra
clients. The systems can be remounted immediately without needing a
reboot or resetting services.

This happens anywhere between once and many times a day, but there is
not a day that goes by where it doesn't happen once.

The ZFS pool is basic but large (10 pools of 10 disks in a z2), and
there is a 128GB of ram dedicated to caching. There have been no
reported issues with ZFS that I can see. No errors, missing devices,
corruption, etc... The pool is set xattr=sa.

As you can see from the attached smb.conf, fruit is active and
configured. We have tried countless variations of the smb.conf but COULD
have missed something, so invite enquiries there.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: samba 2:4.3.11+dfsg-0ubuntu0.16.04.3
ProcVersionSignature: Ubuntu 4.4.0-59.80-generic 4.4.35
Uname: Linux 4.4.0-59-generic x86_64
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
Date: Wed Feb 22 20:45:15 2017
InstallationDate: Installed on 2017-02-02 (19 days ago)
InstallationMedia: ShareOS 16.04.1 2017.02.01 amd64 "ShareOS Xenial"
NmbdLog:
 
OtherFailedConnect: Yes
ProcEnviron:
 LANGUAGE=en_US
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SambaServerRegression: No
SmbConfIncluded: Yes
SmbLog:
 
SourcePackage: samba
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: samba (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

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https://bugs.launchpad.net/bugs/1666843

Title:
  Regular recoverable disconnections on OSX clients

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