Bug 760229 - Update default max file size for store and improve some wording
Summary: Update default max file size for store and improve some wording
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise MRG
Classification: Red Hat
Component: Messaging_Programming_Reference
Version: Development
Hardware: Unspecified
OS: Unspecified
unspecified
medium
Target Milestone: 2.2
: ---
Assignee: Joshua Wulf
QA Contact: ecs-bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-12-05 16:51 UTC by Kim van der Riet
Modified: 2014-10-19 22:59 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-09-20 03:13:34 UTC
Target Upstream Version:


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Description Kim van der Riet 2011-12-05 16:51:28 UTC
Store checkin r.4485 (which will be in the Qpid 0.16 release) changes the maximum file size for the --jfile-size-pgs and --tpl-jfile-size-pgs parameters from 32768 to 32767 to avoid a problem with 32-bit RHEL (see BZ 759575 for details on this).

In addition, the description for the size of the store needs to be clarified in the Messaging Users Guide, table 6.2. Persistence Options.

The current text for --num-jfiles and --jfile-size-pgs reads:

"The total size of each journal is num-jfiles * jfile-size-pgs."

This is true, but misleading as this will give the size not in bytes but in 64k pages. I suggest it is changed to the following in both cases:

"The total size of each journal is num-jfiles * jfile-size-pgs * 64 * 1024 bytes."

Comment 1 Kim van der Riet 2011-12-05 16:54:49 UTC
It may be a good idea to also give the min and max allowable values for --num-jfiles, --tpl-num-jfiles, --jfile-size-pgs and --tpl-jfile-size-pgs in the Installation Guide, Table 4.1. Persistence Options.

Comment 2 Kim van der Riet 2011-12-05 16:56:14 UTC
(In reply to comment #1)
> It may be a good idea to also give the min and max allowable values for
> --num-jfiles, --tpl-num-jfiles, --jfile-size-pgs and --tpl-jfile-size-pgs in
> the Installation Guide, Table 4.1. Persistence Options.

Correction, the tp-* options are not listed in this table, so only the regular options.

Comment 5 Cheryn Tan 2012-09-20 02:54:26 UTC
Released for MRG 2.2


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