HEY,
I just realized today that the AUFS and MHDDFS plug-ins were updated to ONE single combined plug-in
I went to update as my current MHDDFS keeps having issues and gets disconnected or something and I have to reboot the server to fix the glitch (drives don't show properly under filesystems either)
I was having the exact same problem: mhddfs appeared to be randomly disconnecting and file systems weren't showing properly either. Here's an excerpt from the syslog:
Dec 29 07:58:04 OMV kernel: [34072.656591] mhddfs[3156] general protection ip:40443c sp:7eff5f9799d0 error:0 in mhddfs[400000+a000]
Dec 29 07:58:11 OMV collectd[3139]: statvfs(/media/3acf1de7-199e-401a-bd70-59d745e58643) failed: Transport endpoint is not connected
Dec 29 07:58:12 OMV monit[3342]: 'fs_media_3acf1de7-199e-401a-bd70-59d745e58643' filesystem doesn't exist
Dec 29 07:58:12 OMV postfix/smtpd[8303]: error: open database /etc/aliases.db: No such file or directory
Dec 29 07:58:12 OMV postfix/smtpd[8303]: warning: dict_nis_init: NIS domain name not set - NIS lookups disabled
Dec 29 07:58:12 OMV postfix/smtpd[8303]: connect from localhost[127.0.0.1]
Dec 29 07:58:12 OMV postfix/smtpd[8303]: AE4B1C116E: client=localhost[127.0.0.1]
Dec 29 07:58:12 OMV postfix/cleanup[8306]: AE4B1C116E: message-id=<1419857892.448724114@OMV.omv>
Dec 29 07:58:12 OMV postfix/smtpd[8303]: disconnect from localhost[127.0.0.1]
Dec 29 07:58:12 OMV monit[3342]: 'fs_media_3acf1de7-199e-401a-bd70-59d745e58643' trying to restart
Dec 29 07:58:12 OMV postfix/qmgr[3204]: AE4B1C116E: from=<hodgepodge@omv.com>, size=750, nrcpt=1 (queue active)
Dec 29 07:58:13 OMV postfix/smtp[8307]: AE4B1C116E: replace: header Subject: monit alert -- Does not exist fs_media_3acf1de7-19: Subject: monit alert -- Does not exist fs_media_3acf1de7-199e-401a-bd70-59d745e58643 [OMV.omv]
Dec 29 07:58:13 OMV postfix/smtp[8307]: AE4B1C116E: to=<hodgepodge@gmail.com>, relay=smtp.mandrillapp.com[54.204.65.134]:587, delay=0.52, delays=0.05/0.01/0.37/0.08, dsn=2.0.0, status=sent (250 2.0.0 Ok: queued as 29B20C021C)
Dec 29 07:58:13 OMV postfix/qmgr[3204]: AE4B1C116E: removed
Dec 29 07:58:21 OMV collectd[3139]: statvfs(/media/3acf1de7-199e-401a-bd70-59d745e58643) failed: Transport endpoint is not connected
Dec 29 07:58:31 OMV collectd[3139]: statvfs(/media/3acf1de7-199e-401a-bd70-59d745e58643) failed: Transport endpoint is not connected
Dec 29 07:58:41 OMV collectd[3139]: statvfs(/media/3acf1de7-199e-401a-bd70-59d745e58643) failed: Transport endpoint is not connected
Dec 29 07:58:42 OMV monit[3342]: 'fs_media_3acf1de7-199e-401a-bd70-59d745e58643' filesystem doesn't exist
Dec 29 07:58:42 OMV monit[3342]: 'fs_media_3acf1de7-199e-401a-bd70-59d745e58643' trying to restart
Dec 29 07:58:51 OMV collectd[3139]: statvfs(/media/3acf1de7-199e-401a-bd70-59d745e58643) failed: Transport endpoint is not connected
Dec 29 07:59:01 OMV collectd[3139]: statvfs(/media/3acf1de7-199e-401a-bd70-59d745e58643) failed: Transport endpoint is not connected
Dec 29 07:59:11 OMV collectd[3139]: statvfs(/media/3acf1de7-199e-401a-bd70-59d745e58643) failed: Transport endpoint is not connected
Dec 29 07:59:12 OMV monit[3342]: 'fs_media_3acf1de7-199e-401a-bd70-59d745e58643' filesystem doesn't exist
Dec 29 07:59:12 OMV monit[3342]: 'fs_media_3acf1de7-199e-401a-bd70-59d745e58643' trying to restart
I initially thought it might be a disk problem but I double-checked SMART logs on all drives and none of them are reporting any errors. I did some digging and this appears to be a bit of an obscure issue but I did turn up some discussion in this thread: http://zackreed.me/articles/84…view=comments#comment_407. Note that one of the people reporting it was also running OMV.
I was getting this error with both the old mhddfs plugin and the new unionfilesys plugin so, after spending way too much time over the holidays trying to troubleshoot this, I finally switched to AUFS. So far, it's been working perfectly but it hasn't even been 24 hrs yet.
Oh, and I second your request for some documentation for some of these plugins. I figured out how the ufs plugin worked through trial and error. It's not complicated but a little bit of an explanation would have been appreciated.
thanks,
Hodge