Bacula-users

Re: [Bacula-users] Why do Concurrend Jobs on same Client wait for another?

2014-07-02 16:50:07
Subject: Re: [Bacula-users] Why do Concurrend Jobs on same Client wait for another?
From: Kern Sibbald <kern AT sibbald DOT com>
To: Ralph Cunnington <Ralph.Cunnington AT bib DOT de>, bacula-users AT lists.sourceforge DOT net
Date: Wed, 02 Jul 2014 22:46:54 +0200
Hello,

If the client is a Windows machine as shown below, and you have VSS=yes set, then the FD forces them to be sequential.  That is the VSS code as it is currently written is not re-entrant.  If you turn off VSS, you can run as many simultaneous jobs as you want on the client, but then they cannot backup files that are open, which is generally not what you want.

This restriction will be removed in some future version.

Best regards,
Kern

On 07/02/2014 08:40 PM, Ralph Cunnington wrote:
Hi Bacula-Users,
giving: Bacula_5.2.13 (Dir and SD )on SuSE 13.1
Clients:
Bacula 5.0.3 (Win64) on WinServer 2008R2, WinServer 2003

I've got 2 concurrend jobs on the same client, same Pri waiting one for the other to finish.
Concurrend jobs all set in client, Storage, Director... using seperate Pools and FileTypes and Storage Devices.

*status client=win08-fd
Running Jobs:
Writing: Full Backup job jw08-notes JobId=64 Volume="nTgm-0038"
    pool="nTag" device="DevNotes1tg" (/media/da2/tga/client1)
    spooling=0 despooling=0 despool_wait=0
    Files=4 Bytes=3,829,306,501 AveBytes/sec=11,195,095 LastBytes/sec=11,609,243
    FDReadSeqNo=74,623 in_msg=74612 out_msg=5 fd=5
Writing: Full Backup job jw08-notes-mail JobId=65 Volume="nTgm-0039"
    pool="nTagm" device="DevNotes2tg" (/media/da2/tgb/client2)
    spooling=0 despooling=0 despool_wait=0
    Files=0 Bytes=0 AveBytes/sec=0 LastBytes/sec=0
    FDReadSeqNo=5 in_msg=4 out_msg=3 fd=8
====


*status storage
....
Used Volume status:
nTgm-0038 on device "DevNotes1tg" (/media/da2/tga/client1)
    Reader=0 writers=1 reserves=0 volinuse=1
nTgm-0039 on device "DevNotes2tg" (/media/da2/tgb/client2)
    Reader=0 writers=0 reserves=1 volinuse=1
====

why does Volume "nTgm-0039" (writers=0, reserves=1 ?) wait and how can I fix it ??

Has anybody had seen an similar Situation, any ideas ?

best regards
Ralph Cunnington
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Open source business process management suite built on Java and Eclipse
Turn processes into business applications with Bonita BPM Community Edition
Quickly connect people, data, and systems into organized workflows
Winner of BOSSIE, CODIE, OW2 and Gartner awards
http://p.sf.net/sfu/Bonitasoft
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