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Hi

I burnt up 172G of download in 24 hours with multi machines doing the
download of the same file (MS SQL patch)

I think I am running into the same issue


So multiple machines are trying to do the download...
Q) why don't they share the same download !

1452459804.945  64052 10.172.208.108 TCP_MISS/206 1727799 GET
http://wsus.ds.download.windowsupdate.com/d/msdownload/update/software/svpk/2015/05/sqlserver2014sp1-kb3058865-x64-enu_2c84e2ebd0d3cb4980a3a1a80d79fd7520405626.exe
- HIER_DIRECT/150.101.195.217 application/octet-stream
1452459868.272  63326 10.172.208.108 TCP_MISS/206 1312208 GET
http://wsus.ds.download.windowsupdate.com/d/msdownload/update/software/svpk/2015/05/sqlserver2014sp1-kb3058865-x64-enu_2c84e2ebd0d3cb4980a3a1a80d79fd7520405626.exe
- HIER_DIRECT/150.101.195.217 application/octet-stream
1452459933.336  65061 10.172.208.108 TCP_MISS/206 1155440 GET
http://wsus.ds.download.windowsupdate.com/d/msdownload/update/software/svpk/2015/05/sqlserver2014sp1-kb3058865-x64-enu_2c84e2ebd0d3cb4980a3a1a80d79fd7520405626.exe
- HIER_DIRECT/150.101.195.217 application/octet-stream
1452459998.406  65067 10.172.208.108 TCP_MISS/206 1022158 GET
http://wsus.ds.download.windowsupdate.com/d/msdownload/update/software/svpk/2015/05/sqlserver2014sp1-kb3058865-x64-enu_2c84e2ebd0d3cb4980a3a1a80d79fd7520405626.exe
- HIER_DIRECT/150.101.195.217 application/octet-stream
1452460066.455  68046 10.172.208.108 TCP_MISS/206 2006058 GET
http://wsus.ds.download.windowsupdate.com/d/msdownload/update/software/svpk/2015/05/sqlserver2014sp1-kb3058865-x64-enu_2c84e2ebd0d3cb4980a3a1a80d79fd7520405626.exe
- HIER_DIRECT/150.101.195.200 application/octet-stream
1452460134.536  68078 10.172.208.108 TCP_MISS/206 1575462 GET
http://wsus.ds.download.windowsupdate.com/d/msdownload/update/software/svpk/2015/05/sqlserver2014sp1-kb3058865-x64-enu_2c84e2ebd0d3cb4980a3a1a80d79fd7520405626.exe
- HIER_DIRECT/150.101.195.200 application/octet-stream
1452460204.180  69643 10.172.208.108 TCP_MISS/206 1387948 GET
http://wsus.ds.download.windowsupdate.com/d/msdownload/update/software/svpk/2015/05/sqlserver2014sp1-kb3058865-x64-enu_2c84e2ebd0d3cb4980a3a1a80d79fd7520405626.exe
- HIER_DIRECT/150.101.195.217 application/octet-stream


here you can see multiple requests for the same file .

I am presuming 206 is a partial download - is that Windows or SQUID ..
I presume windows client

So is it the byte range that gets cached.

if client a want 100 - 200 of file X
and client B wants 50 - 150.. will squid reuse whatever has been
downloaded of the 100-200 request by client B


any way I can for the requests to a single file - I could manually
download the file once, that would place it in the cache.


I have this in my config
# http://wiki.squid-cache.org/SquidFaq/WindowsUpdate
range_offset_limit 200 MB
maximum_object_size 200 MB
quick_abort_min -1

refresh_pattern -i
microsoft.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 4320 80%
43200 reload-into-ims
refresh_pattern -i
windowsupdate.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 4320
80% 43200 reload-into-ims
refresh_pattern -i
windows.com/.*\.(cab|exe|ms[i|u|f]|[ap]sf|wm[v|a]|dat|zip) 4320 80%
43200 reload-into-ims


guessing I have to bump up the 200M max to 800mb. are the other values
still okay ?


A
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