There's the doc that I used when trying to adjust this the first time! I do indeed have ERL_MAX_PORTS set up in the default/couchdb -- how do I know for sure that it's using it?
-Jon On Wed, Dec 1, 2010 at 12:47 PM, Randall Leeds <[email protected]> wrote: > Also check the value of the ERL_MAX_PORTS environment variable, which > is the erlang runtime's limit on how many files/sockets can be opened. > > See also: http://wiki.apache.org/couchdb/Performance#Resource_Limits > > On Wed, Dec 1, 2010 at 13:29, Robert Newson <[email protected]> wrote: >> ignore the '-f' bit. >> >> On Wed, Dec 1, 2010 at 6:29 PM, Robert Newson <[email protected]> >> wrote: >>> look in /proc/<pid/limits to see if your tweak to limits.conf works. I >>> doubt it does. >>> >>> The way I increase fd limits from the miserly Linux default of 1024 is >>> with this run script, where couchdb is launched by runit; >>> >>> #!/bin/bash >>> exec 2>&1 >>> export HOME=<dir> >>> ulimit -n 10000 >>> exec chpst -u <user> couchdb -f >>> >>> B. >>> >>> >>> >>> >>> On Wed, Dec 1, 2010 at 6:21 PM, Jonathan Johnson <[email protected]> wrote: >>>> Our couch setup has around 100 databases with a significant number of >>>> views in each database. Every once in a while, couch takes a dive. I >>>> happened to be around this time, and saw this in the logs: >>>> >>>> >>>> [Wed, 01 Dec 2010 18:09:19 GMT] [error] [<0.102.0>] {error_report,<0.31.0>, >>>> {<0.102.0>,std_error, >>>> {mochiweb_socket_server,225,{acceptor_error,{error,accept_failed}}}}} >>>> >>>> [Wed, 01 Dec 2010 18:09:19 GMT] [error] [<0.10711.1125>] >>>> {error_report,<0.31.0>, >>>> {<0.10711.1125>,std_error, >>>> [{application,mochiweb}, >>>> "Accept failed error","{error,emfile}"]}} >>>> >>>> [Wed, 01 Dec 2010 18:09:19 GMT] [error] [<0.10711.1125>] >>>> {error_report,<0.31.0>, >>>> {<0.10711.1125>,crash_report, >>>> >>>> [[{initial_call,{mochiweb_socket_server,acceptor_loop,['Argument__1']}}, >>>> {pid,<0.10711.1125>}, >>>> {registered_name,[]}, >>>> {error_info, >>>> {exit, >>>> {error,accept_failed}, >>>> [{mochiweb_socket_server,acceptor_loop,1}, >>>> {proc_lib,init_p_do_apply,3}]}}, >>>> {ancestors, >>>> >>>> [couch_httpd,couch_secondary_services,couch_server_sup,<0.32.0>]}, >>>> {messages,[]}, >>>> {links,[<0.102.0>]}, >>>> {dictionary,[]}, >>>> {trap_exit,false}, >>>> {status,running}, >>>> {heap_size,233}, >>>> {stack_size,24}, >>>> {reductions,202}], >>>> []]}} >>>> >>>> [Wed, 01 Dec 2010 18:09:19 GMT] [error] [<0.102.0>] {error_report,<0.31.0>, >>>> {<0.102.0>,std_error, >>>> {mochiweb_socket_server,225,{acceptor_error,{error,accept_failed}}}}} >>>> >>>> I had run into an open files limit before, and had adjusted a few >>>> settings. Here are some of the config values I think are relevant: >>>> >>>> max_dbs_open = 100 >>>> max_connections = 2048 >>>> >>>> From /etc/security/limits.conf >>>> couchdb hard nofile 4096 >>>> couchdb soft nofile 4096 >>>> >>>> The installed version is 1.0.1. >>>> >>>> I'm not sure how to debug this issue further. It only happens after >>>> several days of usage, and once it happens, I can't even ask for the >>>> stats page to see what the current numbers are :) >>>> >>>> Thanks in advance for any help! >>>> -Jon >>>> >>> >> >
