Hi,
I am running varnish on 64 bit Centos. Getting too many 503 errors recently and i tried debugging it with some help from Forums on mailinglist. All requests and responses given below. I am not able to reach any conclusion; please help me as what could be done to understand the exact issue. Attempts: 1. Varnish in debug mode 2. gdb 3. strace (linux system and lib calls) All outputs given below for reference: VARNISHLOGS: 180 ReqStart c 203.223.188.130 4147 583956431 180 RxRequest c GET 180 RxURL c /0/OasDefault/LO_TataNano_Kerala_01/nano_640x480.swf?click=http://ads.mydomain.com/media/ads/click_lx.ads/www.mydomainmail.com/logout.htm/L-29/562622447/Middle/OasDefault/LO_TataNano_Kerala_01/LO_TataNano_UP_0101.html/79392b38676b7a2b4548304141525538?URL 180 RxProtocol c HTTP/1.1 180 RxHeader c Host: imads.mydomain.com 180 RxHeader c User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.11) Gecko/20101012 Firefox/3.6.11 180 RxHeader c Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 180 RxHeader c Accept-Language: en-us,en;q=0.5 180 RxHeader c Accept-Encoding: gzip,deflate 180 RxHeader c Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 180 RxHeader c Keep-Alive: 115 180 RxHeader c Connection: keep-alive 180 RxHeader c Referer: http://login.mydomain.com/bn/logout.cgi?formname=general&function_name=logout&login=gopal.pgv&session_id=6L25PK1KWKlno6s8Ul4BgQBopj70kV10 180 RxHeader c Cookie: OAX=y9+8gkz+EH0AARU8; RLOC=%5F%5F4i1NtmpD2pc%5F%5FU9WPPAYrSWc%5F%5FtHonjGX8AnI%5F%5Find%5F%5F; RMFL=011PVICcU3018r0; RuW=1292401506681957; accounttype=77; Rp=g%3D2%26a%3D20%26c%3D10%26s%3D30%26cn%3D099%26z%3D000000%26p%3D031%26e%3D00%26d%3D_9_%26i 180 VCL_call c recv lookup 180 VCL_call c hash hash 180 VCL_call c miss fetch 180 FetchError c no backend connection 180 VCL_call c error deliver 180 Length c 487 180 VCL_call c deliver deliver 180 TxProtocol c HTTP/1.1 180 TxStatus c 503 180 TxResponse c Service Unavailable 180 TxHeader c Content-Type: text/html; charset=utf-8 180 TxHeader c Content-Length: 487 180 TxHeader c Date: Wed, 22 Dec 2010 06:39:13 GMT 180 TxHeader c Connection: close 180 TxHeader c Server: mydomain/2.0.6 180 TxHeader c X-Cache: TCP_MISS 180 ReqEnd c 583956431 1292999948.983546972 1292999953.983323097 0.000041008 4.999706984 0.000069141 MANUALLY SENT THE SAME REQUEST USING CURL: [r...@mymachine ~]# curl --head --header host:imads.mydomain.com "http://localhost//0/OasDefault/IIPM_CPL_Nov10_B3_MW/iipm_winter02_300x600_10dec_03.gif"; HTTP/1.1 200 OK Last-Modified: Thu, 02 Dec 2010 12:19:14 GMT P3P: CP="NON NID PSAa PSDa OUR IND UNI COM NAV STA",policyref="/w3c/p3p.xml" Content-Type: image/gif cache-control: max-age=604800 Content-Length: 4150 Date: Wed, 22 Dec 2010 06:39:26 GMT Connection: keep-alive H-Served-By: mymachine Server: mydomain/2.0.6 X-Cache: TCP_MISS [r...@mymachine ~]# curl --head --header host:imads.mydomain.com "http://localhost//0/OasDefault/IIPM_CPL_Nov10_B3_MW/iipm_winter02_300x600_10dec_03.gif"; HTTP/1.1 200 OK Last-Modified: Thu, 02 Dec 2010 12:19:14 GMT P3P: CP="NON NID PSAa PSDa OUR IND UNI COM NAV STA",policyref="/w3c/p3p.xml" Content-Type: image/gif cache-control: max-age=604800 Content-Length: 4150 Date: Wed, 22 Dec 2010 06:39:33 GMT Connection: keep-alive H-Served-By: mymachine Server: mydomain/2.0.6 X-Cache: TCP_HIT GDB Trace: [New Thread 0x40ccd940 (LWP 11258)] Loaded symbols for /lib64/libpthread.so.0 Reading symbols from /lib64/libnsl.so.1...(no debugging symbols found)...done. Loaded symbols for /lib64/libnsl.so.1 Reading symbols from /lib64/libm.so.6...(no debugging symbols found)...done. Loaded symbols for /lib64/libm.so.6 Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done. Loaded symbols for /lib64/libc.so.6 Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done. Loaded symbols for /lib64/ld-linux-x86-64.so.2 Reading symbols from /lib64/librt.so.1... (no debugging symbols found)...done. Loaded symbols for /lib64/librt.so.1 Reading symbols from /lib64/libpcre.so.0...(no debugging symbols found)...done. Loaded symbols for /lib64/libpcre.so.0 Reading symbols from /lib64/libnss_files.so.2...(no debugging symbols found)...done. Loaded symbols for /lib64/libnss_files.so.2 Symbol file not found for ./vcl.FANefPfn.so 0x0000003c31acae46 in poll () from /lib64/libc.so.6 (gdb) n Cannot find bounds of current function (gdb) bt #0 0x0000003c31acae46 in poll () from /lib64/libc.so.6 #1 0x00000035d58056aa in CLS_Poll () from /usr/lib64/libvarnish.so.1 #2 0x0000000000414b11 in CLI_Run () #3 0x00000000004212a3 in child_main () #4 0x000000000042f6d9 in ?? () #5 0x000000000042ff09 in ?? () #6 0x00000035d5807c47 in ?? () from /usr/lib64/libvarnish.so.1 #7 0x00000035d58082d8 in vev_schedule () from /usr/lib64/libvarnish.so.1 #8 0x000000000042f943 in MGT_Run () #9 0x000000000043deca in main () VARNISG DEBUG OUTPUT: Child (11257) not responding to ping, killing it. Child (11257) not responding to ping, killing it. Child (11257) not responding to ping, killing it. Child (11257) not responding to ping, killing it. Child (11257) not responding to ping, killing it. Child (11257) not responding to ping, killing it. Child (11257) not responding to ping, killing it. Child (11257) not responding to ping, killing it. Child (11257) not responding to ping, killing it. Child (11257) not responding to ping, killing it. Child (11257) not responding to ping, killing it. Child (11257) not responding to ping, killing it. Child (11257) not responding to ping, killing it. Regards, Anand _______________________________________________ varnish-misc mailing list [email protected] http://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
![http://localhost//0/OasDefault/IIPM_CPL_Nov10_B3_MW/iipm_winter02_300x600_10dec_03.gif"](http://localhost//0/OasDefault/IIPM_CPL_Nov10_B3_MW/iipm_winter02_300x600_10dec_03.gif"){kind=link}