Re: [squid-users] Issue with Digest and Number of Objects

On Tue, 29 Dec 2009 14:11:44 -0500, Dusten Splan <dsplan_at_myyearbook.com>
wrote:
> Hi All,
> So I'm having an issue where squid will not cache more then 3843117
> objects.

NP: 2^24 objects limit per- cache_dir entry.

> Also on this same box we are seeing the traffic dip every
> time it rebuilds the digest file.

Some delay is expected while the 50MB digest is generated.

I think probably the worse effect is that the peers are disappearing. This
will most likely increase the network lag time for each request.

>
> Sample of log file.
>
> 2009/12/29 04:15:21.745| storeDigestRebuildStart: rebuild #276
> 2009/12/29 04:15:21.745| storeDigestCalcCap: have: 38414447, want
> 38414447 entries; limits: [8318
> 0325, 103975384]
> 2009/12/29 04:15:21.745| storeDigestResize: 81437985 -> 83180325;
> change: 1742340 (2%)
> 2009/12/29 04:15:21.745| storeDigestResize: small change, will not
resize.
> 2009/12/29 04:15:21.761| storeDigestRebuildStep: buckets: 8388608
> entries to check: 16777220
> 2009/12/29 04:15:36.125| storeDigestRebuildStep: buckets: 8388608
> entries to check: 16777220
> 2009/12/29 04:15:50| Detected DEAD Sibling: mypeer01
> 2009/12/29 04:15:50| Detected DEAD Sibling: mypeer02
> 2009/12/29 04:15:50| Detected DEAD Sibling: mypeer03
> 2009/12/29 04:15:50.710| storeDigestRebuildStep: buckets: 8388608
> entries to check: 16777220
> 2009/12/29 04:15:54.956| storeDigestRebuildFinish: done.
> 2009/12/29 04:15:55.010| storeDigestRewrite: start rewrite #276
> 2009/12/29 04:15:55.010| storeDigestRewrite: url:
> http://example.com/squid-interna
> l-periodic/store_digest key: D412EC3C5799ADE5A3CF229E9BD27A16
> 2009/12/29 04:15:55.040| storeDigestRewrite: entry expires on -1
> (-1262078156)
> 2009/12/29 04:15:55.065| storeDigestSwapOutStep: size: 50898741
> offset: 0 chunk: 4096 bytes
> 2009/12/29 04:15:55.079| storeDigestSwapOutStep: size: 50898741
> offset: 4096 chunk: 4096 bytes
> 2009/12/29 04:15:55.088| storeDigestSwapOutStep: size: 50898741
> offset: 8192 chunk: 4096 bytes
> ...
> 2009/12/29 04:15:55.372| storeDigestSwapOutStep: size: 50898741
> offset: 50888704 chunk: 4096 bytes
> 2009/12/29 04:15:55.372| storeDigestSwapOutStep: size: 50898741
> offset: 50892800 chunk: 4096 bytes
> 2009/12/29 04:15:55.372| storeDigestSwapOutStep: size: 50898741
> offset: 50896896 chunk: 1845 bytes
> 2009/12/29 04:15:55.372| storeDigestRewriteFinish: digest expires at
> -1 (-1262078156)
> 2009/12/29 04:16:02| Detected REVIVED Sibling: mypeer01
> 2009/12/29 04:16:02| Detected REVIVED Sibling: mypeer03
> 2009/12/29 04:16:02| Detected REVIVED Sibling: mypeer02
>
>
> Then start again an hour later.
>
> 2009/12/29 05:15:54.958| storeDigestRebuildStart: rebuild #277
>
>
> Thanks
> Dusten
Received on Wed Dec 30 2009 - 03:03:33 MST