mod_dumpio.c(55): mod_dumpio: dumpio_out (data-POOL): 27 bytes mod_dumpio.c(55): mod_dumpio: dumpio_out (data-POOL): 60 bytes mod_dumpio.c(74): mod_dumpio: dumpio_out (data-POOL): Host: \r\n mod_dumpio.c(55): mod_dumpio: dumpio_out (data-POOL): 23 bytes mod_dumpio.c(74): mod_dumpio: dumpio_out (data-POOL): PUT /remote.php/webdav/SPECIAL.15M-chunking-282768 HTTP/1.1\r\n mod_dumpio.c(55): mod_dumpio: dumpio_out (data-POOL): 69 bytes mod_dumpio.c(142): mod_dumpio: dumpio_out mod_dumpio.c(55): mod_dumpio: dumpio_in (data-HEAP): 6936 bytes mod_dumpio.c(113): mod_dumpio: dumpio_in 6936 readbytes mod_dumpio.c(55): mod_dumpio: dumpio_in (data-HEAP): 8000 bytes mod_dumpio.c(113): mod_dumpio: dumpio_in 14936 readbytes mod_dumpio.c(74): mod_dumpio: dumpio_in (data-HEAP): mod_dumpio.c(55): mod_dumpio: dumpio_in (data-HEAP): 1448 bytes mod_dumpio.c(113): mod_dumpio: dumpio_in 16384 readbytes proxy_util.c(2460): proxy: HTTP: fam 2 socket created to connect to proxy_util.c(2082): proxy: connecting to :80 proxy_util.c(2026): proxy: HTTP: has acquired connection for () mod_proxy_http.c(1962): proxy: HTTP: serving URL mod_proxy.c(1020): Running scheme balancer handler (attempt 0) mod_proxy_balancer.c(581): proxy: BALANCER (balancer://ocwebdavcluster) worker () rewritten to mod_proxy_balancer.c(290): proxy: BALANCER: Found route 7
mod_proxy_balancer.c(280): proxy: BALANCER: Found value. mod_proxy_balancer.c(46): proxy: BALANCER: canonicalising URL //ocwebdavcluster/remote.php/webdav/SPECIAL.15M-chunking-282768 mod_dumpio.c(74): mod_dumpio: dumpio_in (data-HEAP): \r\n mod_dumpio.c(55): mod_dumpio: dumpio_in (data-HEAP): 2 bytes mod_dumpio.c(55): mod_dumpio: dumpio_in (data-HEAP): 64 bytes mod_dumpio.c(55): mod_dumpio: dumpio_in (data-HEAP): 26 bytes mod_dumpio.c(74): mod_dumpio: dumpio_in (data-HEAP): Content-Type: application/octet-stream\r\n mod_dumpio.c(55): mod_dumpio: dumpio_in (data-HEAP): 40 bytes mod_dumpio.c(74): mod_dumpio: dumpio_in (data-HEAP): OC-Chunked: 1\r\n mod_dumpio.c(55): mod_dumpio: dumpio_in (data-HEAP): 15 bytes mod_dumpio.c(55): mod_dumpio: dumpio_in (data-HEAP): 24 bytes mod_dumpio.c(55): mod_dumpio: dumpio_in (data-HEAP): 27 bytes
mod_dumpio.c(74): mod_dumpio: dumpio_in (data-HEAP): Proxy-Connection: Keep-Alive\r\n mod_dumpio.c(55): mod_dumpio: dumpio_in (data-HEAP): 30 bytes mod_dumpio.c(74): mod_dumpio: dumpio_in (data-HEAP): Host: \r\n mod_dumpio.c(55): mod_dumpio: dumpio_in (data-HEAP): 23 bytes mod_dumpio.c(74): mod_dumpio: dumpio_in (data-HEAP): TE: trailers\r\n mod_dumpio.c(55): mod_dumpio: dumpio_in (data-HEAP): 14 bytes mod_dumpio.c(74): mod_dumpio: dumpio_in (data-HEAP): Connection: TE\r\n mod_dumpio.c(55): mod_dumpio: dumpio_in (data-HEAP): 16 bytes mod_dumpio.c(55): mod_dumpio: dumpio_in (data-HEAP): 60 bytes mod_dumpio.c(113): mod_dumpio: dumpio_in 0 readbytes
mod_dumpio.c(74): mod_dumpio: dumpio_in (data-HEAP): PUT /remote.php/webdav/SPECIAL.15M-chunking-282768 HTTP/1.1\r\n Here is the log of the proxy server:dumpio_in is what comes from the client or comes back from the backend server, dumpio_out is what comes out to the backend server. So my guess is that the client on redhat 6 does not handle correctly the second request for the chunked upload while reusing the already open connection. When KeepAlive is off then it works correctly. The first chunk goes ok, the request for the second chunk gets "scrambled" while being passed to the backend server (see below). The redhat6 client misbehaves when KeepAlive is enabled on the apache proxy server (mod_proxy). This is related to issue #1396 - works on MacOSX and Ubuntu without problems but not on redhat6.
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