I also have like 167 zip files on my WebDAV server (as reported from iPhone). Syncing is fast on the mac but slow on the iPhone. I checked that I have only these two in my preferences and also that they have been synced recently.
However I see some strange behaviour in the Apache Logs auf the WebDAV server:
This is the Mac syncing - everything fine. It gets a 401 first to authenticate and afterwards seems to be doing the sync normally (note there are more similar entries in the log).
Code:
128.141.131.166 - - [14/Sep/2009:16:45:30 +0200] "PROPFIND /dav/dka/omnifocus/OmniFocus.ofocus HTTP/1.1" 401 465
128.141.131.166 - dka [14/Sep/2009:16:45:30 +0200] "PROPFIND /dav/dka/omnifocus/OmniFocus.ofocus HTTP/1.1" 301 329
128.141.131.166 - dka [14/Sep/2009:16:45:30 +0200] "PROPFIND /dav/dka/omnifocus/OmniFocus.ofocus/ HTTP/1.1" 207 467
128.141.131.166 - dka [14/Sep/2009:16:45:30 +0200] "PROPFIND /dav/dka/omnifocus/OmniFocus.ofocus HTTP/1.1" 301 329
128.141.131.166 - dka [14/Sep/2009:16:45:31 +0200] "PROPFIND /dav/dka/omnifocus/OmniFocus.ofocus/ HTTP/1.1" 207 49970
128.141.131.166 - dka [14/Sep/2009:16:45:31 +0200] "PUT /dav/dka/omnifocus/OmniFocus.ofocus/20090914144747%3Dno9MYrve6L4%2BgHYX51p1ipQ.zip-write-in-progr
128.141.131.166 - dka [14/Sep/2009:16:45:31 +0200] "MOVE /dav/dka/omnifocus/OmniFocus.ofocus/20090914144747%3Dno9MYrve6L4%2BgHYX51p1ipQ.zip-write-in-prog
128.141.131.166 - dka [14/Sep/2009:16:45:31 +0200] "PUT /dav/dka/omnifocus/OmniFocus.ofocus/20090914144819%3DgHYX51p1ipQ%2BnfYw1Wg8pOe.zip-write-in-progr
128.141.131.166 - dka [14/Sep/2009:16:45:32 +0200] "MOVE /dav/dka/omnifocus/OmniFocus.ofocus/20090914144819%3DgHYX51p1ipQ%2BnfYw1Wg8pOe.zip-write-in-prog
128.141.131.166 - dka [14/Sep/2009:16:45:32 +0200] "PUT /dav/dka/omnifocus/OmniFocus.ofocus/20090914144841%3DnfYw1Wg8pOe%2BnqdBBs7ohf5.zip-write-in-progr
128.141.131.166 - dka [14/Sep/2009:16:45:32 +0200] "MOVE /dav/dka/omnifocus/OmniFocus.ofocus/20090914144841%3DnfYw1Wg8pOe%2BnqdBBs7ohf5.zip-write-in-prog
128.141.131.166 - dka [14/Sep/2009:16:45:32 +0200] "PUT /dav/dka/omnifocus/OmniFocus.ofocus/20090914144850%3DnDYGc4IBUO8.client-write-in-progress-nuUDAF0
128.141.131.166 - dka [14/Sep/2009:16:45:32 +0200] "MOVE /dav/dka/omnifocus/OmniFocus.ofocus/20090914144850%3DnDYGc4IBUO8.client-write-in-progress-nuUDAF
128.141.131.166 - dka [14/Sep/2009:16:45:32 +0200] "DELETE /dav/dka/omnifocus/OmniFocus.ofocus/20090914124616=nDYGc4IBUO8.client HTTP/1.1" 204 -
However if the iPhone is syncing, it looks like the following. There's a 401 for each request and only then the iPhone is authenticating (dka is my username here, 3rd column). Something seems to be strange with the session handling and/or authentication here (although here: there are more similar entries in the log):
Code:
128.141.72.107 - - [14/Sep/2009:16:52:21 +0200] "PROPFIND /dav/dka/omnifocus/OmniFocus.ofocus HTTP/1.1" 401 465
128.141.72.107 - dka [14/Sep/2009:16:52:21 +0200] "PROPFIND /dav/dka/omnifocus/OmniFocus.ofocus HTTP/1.1" 301 329
128.141.72.107 - - [14/Sep/2009:16:52:21 +0200] "PROPFIND /dav/dka/omnifocus/OmniFocus.ofocus/ HTTP/1.1" 401 465
128.141.72.107 - dka [14/Sep/2009:16:52:21 +0200] "PROPFIND /dav/dka/omnifocus/OmniFocus.ofocus/ HTTP/1.1" 207 467
128.141.72.107 - - [14/Sep/2009:16:52:22 +0200] "PROPFIND /dav/dka/omnifocus/OmniFocus.ofocus HTTP/1.1" 401 465
128.141.72.107 - dka [14/Sep/2009:16:52:22 +0200] "PROPFIND /dav/dka/omnifocus/OmniFocus.ofocus HTTP/1.1" 301 329
128.141.72.107 - - [14/Sep/2009:16:52:22 +0200] "PROPFIND /dav/dka/omnifocus/OmniFocus.ofocus/ HTTP/1.1" 401 465
128.141.72.107 - dka [14/Sep/2009:16:52:22 +0200] "PROPFIND /dav/dka/omnifocus/OmniFocus.ofocus/ HTTP/1.1" 207 52294
128.141.72.107 - - [14/Sep/2009:16:52:23 +0200] "GET /dav/dka/omnifocus/OmniFocus.ofocus/20090914144017=hkc9yI5EEWs+gxj7p61CU06.zip HTTP/1.1" 401 465
128.141.72.107 - dka [14/Sep/2009:16:52:23 +0200] "GET /dav/dka/omnifocus/OmniFocus.ofocus/20090914144017=hkc9yI5EEWs+gxj7p61CU06.zip HTTP/1.1" 200 2737
128.141.72.107 - - [14/Sep/2009:16:52:24 +0200] "GET /dav/dka/omnifocus/OmniFocus.ofocus/20090914144016=hy0P2YIrUdp+hkc9yI5EEWs.zip HTTP/1.1" 401 465
128.141.72.107 - dka [14/Sep/2009:16:52:24 +0200] "GET /dav/dka/omnifocus/OmniFocus.ofocus/20090914144016=hy0P2YIrUdp+hkc9yI5EEWs.zip HTTP/1.1" 200 3835
128.141.72.107 - - [14/Sep/2009:16:52:24 +0200] "GET /dav/dka/omnifocus/OmniFocus.ofocus/20090914144857=nqdBBs7ohf5+jGWXisb_CdN.zip HTTP/1.1" 401 465
128.141.72.107 - dka [14/Sep/2009:16:52:24 +0200] "GET /dav/dka/omnifocus/OmniFocus.ofocus/20090914144857=nqdBBs7ohf5+jGWXisb_CdN.zip HTTP/1.1" 200 650
128.141.72.107 - - [14/Sep/2009:16:52:24 +0200] "GET /dav/dka/omnifocus/OmniFocus.ofocus/20090914144910=d3zfkShq_cJ+cVcdehSRygQ.zip HTTP/1.1" 401 465
128.141.72.107 - dka [14/Sep/2009:16:52:24 +0200] "GET /dav/dka/omnifocus/OmniFocus.ofocus/20090914144910=d3zfkShq_cJ+cVcdehSRygQ.zip HTTP/1.1" 200 810
128.141.72.107 - - [14/Sep/2009:16:52:25 +0200] "GET /dav/dka/omnifocus/OmniFocus.ofocus/20090914144111=huHnlhvFoRj+no9MYrve6L4.zip HTTP/1.1" 401 465
128.141.72.107 - dka [14/Sep/2009:16:52:25 +0200] "GET /dav/dka/omnifocus/OmniFocus.ofocus/20090914144111=huHnlhvFoRj+no9MYrve6L4.zip HTTP/1.1" 200 2736
128.141.72.107 - - [14/Sep/2009:16:52:25 +0200] "GET /dav/dka/omnifocus/OmniFocus.ofocus/20090914144904=jGWXisb_CdN+d3zfkShq_cJ.zip HTTP/1.1" 401 465
Maybe this is also part of the reason why the sync from the iPhone is so slow. I guess making almost double the requests necessary is a significant performance loss (at least on mobile networks). (NB This was WiFi)
Used versions: OmniFocus 1.7.3 on the Mac, 1.5.2 on the iPhone