Cache Flush reported excessively

[GoogleCodeExporter]

Creating a 'cache.flush' file results in [warn] level errors:

[Tue Nov 13 11:08:07 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @5177] Cache 
Flush 0
[Tue Nov 13 11:08:08 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @3209] Cache 
Flush 0
[Tue Nov 13 11:08:08 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @5841] Cache 
Flush 0
[Tue Nov 13 11:08:09 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @5087] Cache 
Flush 0
[Tue Nov 13 11:08:09 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @5801] Cache 
Flush 0
...
[Tue Nov 13 11:12:27 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @8107] Cache 
Flush 0
[Tue Nov 13 11:12:28 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @8110] Cache 
Flush 0
[Tue Nov 13 11:12:28 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @8111] Cache 
Flush 0
[Tue Nov 13 11:12:29 2012] [error] [mod_pagespeed 1.1.23.1-2169 @8112] Shutting 
down mod_pagespeed child
[Tue Nov 13 11:12:30 2012] [error] [mod_pagespeed 1.1.23.1-2169 @8113] Shutting 
down mod_pagespeed child
[Tue Nov 13 11:12:31 2012] [error] [mod_pagespeed 1.1.23.1-2169 @7746] Shutting 
down mod_pagespeed child
[Tue Nov 13 11:12:31 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @7725] Cache 
Flush 0
[Tue Nov 13 11:12:32 2012] [error] [mod_pagespeed 1.1.23.1-2169 @7425] Shutting 
down mod_pagespeed child
[Tue Nov 13 11:12:33 2012] [error] [mod_pagespeed 1.1.23.1-2169 @8109] Shutting 
down mod_pagespeed child
[Tue Nov 13 11:12:34 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @8017] Cache 
Flush 0


While our main server is repeating "Cache Flush 0" ad infinitum (600+ already), 
another (VPS) server is counting up:

[Tue Nov 13 11:26:14 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @19810] Cache 
Flush 21
[Tue Nov 13 11:26:17 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @19813] Cache 
Flush 22
[Tue Nov 13 11:26:18 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @19814] Cache 
Flush 23
[Tue Nov 13 11:26:28 2012] [error] [mod_pagespeed 1.1.23.1-2169 @19813] 
Shutting down mod_pagespeed child
[Tue Nov 13 11:26:32 2012] [error] [mod_pagespeed 1.1.23.1-2169 @19809] 
Shutting down mod_pagespeed child
[Tue Nov 13 11:26:33 2012] [error] [mod_pagespeed 1.1.23.1-2169 @19672] 
Shutting down mod_pagespeed child
[Tue Nov 13 11:26:34 2012] [error] [mod_pagespeed 1.1.23.1-2169 @19792] 
Shutting down mod_pagespeed child
[Tue Nov 13 11:26:35 2012] [error] [mod_pagespeed 1.1.23.1-2169 @19528] 
Shutting down mod_pagespeed child
[Tue Nov 13 11:26:38 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @19807] Cache 
Flush 24
...
[Tue Nov 13 11:27:47 2012] [notice] caught SIGTERM, shutting down
[Tue Nov 13 11:27:48 2012] [notice] Apache/2.2.16 (Debian) configured -- 
resuming normal operations
[Tue Nov 13 11:27:53 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @19864] Cache 
Flush 1
[Tue Nov 13 11:27:54 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @19866] Cache 
Flush 2
[Tue Nov 13 11:28:01 2012] [warn] [mod_pagespeed 1.1.23.1-2169 @19867] Cache 
Flush 3

Original issue reported on code.google.com by jmara...@google.com on 13 Nov 2012 at 1:47