Hi --
I have been getting some similar large processes myself. They are not
"hanging", but rather they just "plumped" up all of a sudden. I was
using the LWP code to fetch pages for users and found that if I set the
"max_size" for the request read I got rid of the "plumpers". Are you
doing some socket reads in your code?
I am using the same build as you on Sol 2.6. My initial sizes are
similar. Your CPU usage does not seem to indicate a spinning process,
unless you are on an 8 processor machine.
Tony Demark wrote:
>
> I am having a problem with hanging httpd processes. I have done some AV
> searches as well as investigated the list archives and did not find any
> conclusive answer to this problem. If I missed it, can someone point me in the
> right direction? If any more information will help decode this problem, I can
> reproduce the problem really easily (bot hitting our stage site causes a few
> of these processes to pop up).
>
> Thanks in advance,
> - Tony
>
> Env:
> Apache 1.3.9
> mod-perl 1.21
> gcc version 2.8.1
> perl v5.005_03
> Solaris 2.7
> Static Build
>
> Output from top (osiz):
> PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND
> 2178 dbuser 1 33 0 137M 64M run 8:33 10.93% httpd
> 2112 dbuser 1 33 0 131M 62M run 7:52 10.19% httpd
>
> Fresh httpd process:
> 3282 dbuser 1 58 0 8200K 2120K sleep 0:00 0.05% httpd
>
> Output from gdb ... 2112 :
> #0 0x118e40 in Perl_av_store ()
> #1 0x1194a4 in Perl_av_push ()
> #2 0xfbc74 in Perl_start_subparse ()
> #3 0x44168 in empty_anon_sub ()
> #4 0x455c0 in XS_Apache__Constants___AUTOLOAD ()
> #5 0x120230 in Perl_pp_entersub ()
> #6 0x159dd0 in Perl_runops_standard ()
> #7 0xe1fb8 in perl_call_sv ()
> #8 0x34564 in perl_call_handler ()
> #9 0x33dd4 in perl_run_stacked_handlers ()
> #10 0x32654 in perl_handler ()
> #11 0x80fb8 in ap_invoke_handler ()
> #12 0x9cdb0 in ap_some_auth_required ()
> #13 0x9d2c8 in ap_internal_redirect ()
> #14 0x9c530 in ap_die ()
> #15 0x9cdd4 in ap_some_auth_required ()
> #16 0x9ce30 in ap_process_request ()
> #17 0x90c70 in ap_child_terminate ()
> #18 0x90fc8 in ap_child_terminate ()
> #19 0x914e0 in ap_child_terminate ()
> #20 0x91c50 in ap_child_terminate ()
> #21 0x92558 in main ()
> (gdb) quit
>
> pmap output:
> /usr/proc/bin/pmap 2112
> 2112: /opt/apache/bin/httpd -f /opt/apache/conf/httpd.conf
> 00010000 1464K read/exec /opt/local/apache/bin/httpd
> 0018C000 56K read/write/exec /opt/local/apache/bin/httpd
> 0019A000 129752K read/write/exec [ heap ]
> FEF80000 8K read/write/exec [ anon ]
> FEF90000 24K read/exec /opt/local/lib/perl5/auto/Socket/Socket.so
> FEFA4000 8K read/write/exec /opt/local/lib/perl5/auto/Socket/Socket.so
> FEFB0000 8K read/write/exec [ anon ]
> FEFC0000 24K read/exec /opt/local/lib/perl5/auto/IO/IO.so
> FEFD4000 8K read/write/exec /opt/local/lib/perl5/auto/IO/IO.so
> FEFE0000 16K read/exec /usr/lib/nss_files.so.1
> FEFF2000 8K read/write/exec /usr/lib/nss_files.so.1
> FF000000 504K read/exec /opt/local/lib/perl5/auto/DB_File/DB_File.so
> FF08C000 16K read/write/exec /opt/local/lib/perl5/auto/DB_File/DB_File.so
> FF0A0000 48K read/write/shared [ anon ]
> FF0B0000 16K read/exec /opt/local/perl/auto/Time/HiRes/HiRes.so
> FF0C2000 8K read/write/exec /opt/local/perl/auto/Time/HiRes/HiRes.so
> FF0D0000 16K read/exec /opt/local/lib/perl5/auto/Fcntl/Fcntl.so
> FF0E2000 8K read/write/exec /opt/local/lib/perl5/auto/Fcntl/Fcntl.so
> FF0F0000 80K read/exec /opt/local/lib/perl5/auto/B/B.so
> FF112000 16K read/write/exec /opt/local/lib/perl5/auto/B/B.so
> FF120000 24K read/exec /opt/local/lib/perl5/auto/Data/Dumper/Dumper
> .so
> FF134000 16K read/write/exec /opt/local/lib/perl5/auto/Data/Dumper/Dumper
> .so
> FF140000 24K read/exec /usr/lib/libgen.so.1
> FF154000 16K read/write/exec /usr/lib/libgen.so.1
> FF160000 16K read/exec /usr/lib/libmp.so.2
> FF172000 8K read/write/exec /usr/lib/libmp.so.2
> FF180000 648K read/exec /usr/lib/libc.so.1
> FF230000 40K read/write/exec /usr/lib/libc.so.1
> FF240000 8K read/write/exec [ anon ]
> FF250000 16K read/exec /usr/platform/sun4u/lib/libc_psr.so.1
> FF260000 8K read/exec /usr/lib/libcrypt_i.so.1
> FF270000 16K read/write/exec /usr/lib/libcrypt_i.so.1
> FF280000 512K read/exec /usr/lib/libnsl.so.1
> FF30E000 40K read/write/exec /usr/lib/libnsl.so.1
> FF318000 32K read/write/exec [ anon ]
> FF330000 88K read/exec /usr/lib/libm.so.1
> FF354000 8K read/write/exec /usr/lib/libm.so.1
> FF370000 32K read/exec /usr/lib/libsocket.so.1
> FF386000 16K read/write/exec /usr/lib/libsocket.so.1
> FF390000 8K read/exec /usr/lib/libdl.so.1
> FF3A0000 8K read/write/exec [ anon ]
> FF3B0000 120K read/exec /usr/lib/ld.so.1
> FF3DC000 8K read/write/exec /usr/lib/ld.so.1
> FFBE6000 40K read/write/exec [ stack ]
> total 133840K
>
> truss output:
> truss -p 2112
> brk(0x08807800) = 0
> ...
--
Craig Shaver, Productivity Group
POB 60458 Sunnyvale, CA 94088 (650)390-0654
http://www.progroup.com/ mailto:[EMAIL PROTECTED]
