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https://issues.apache.org/jira/browse/COUCHDB-536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13548682#comment-13548682
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James Howe commented on COUCHDB-536:
------------------------------------
Think I've hit the same thing in 1.2.0. After making lots of view queries
(triggering a reindex on every one on the server with a script) the server got
into a state where it would abort a random selection of requests (made at a
more leisurely rate), including a number of those used by Futon. Didn't have a
chance to investigate socket states on the server unfortunately.
The first error was this:
[Wed, 09 Jan 2013 16:00:03 GMT] [error] [<0.1528.3109>] {error_report,<0.32.0>,
{<0.1528.3109>,std_error,
[{application,mochiweb},
"Accept failed error",
"{error,enfile}"]}}
Lots of these:
[Wed, 09 Jan 2013 16:43:46 GMT] [error] [<0.617.3110>] {error_report,<0.32.0>,
{<0.617.3110>,crash_report,
[[{initial_call,
{mochiweb_acceptor,init,
['Argument__1','Argument__2',
'Argument__3']}},
{pid,<0.617.3110>},
{registered_name,[]},
{error_info,
{exit,
{error,accept_failed},
[{mochiweb_acceptor,init,3},
{proc_lib,init_p_do_apply,3}]}},
{ancestors,
[couch_httpd,couch_secondary_services,
couch_server_sup,<0.33.0>]},
{messages,[]},
{links,[<0.124.0>]},
{dictionary,[]},
{trap_exit,false},
{status,running},
{heap_size,233},
{stack_size,24},
{reductions,209}],
[]]}}
And then eventually lots of these as well:
[Wed, 09 Jan 2013 16:43:46 GMT] [error] [<0.124.0>] {error_report,<0.32.0>,
{<0.124.0>,std_error,
{mochiweb_socket_server,254,
{acceptor_error,{error,accept_failed}}}}}
> CouchDB HTTP server stops accepting connections
> -----------------------------------------------
>
> Key: COUCHDB-536
> URL: https://issues.apache.org/jira/browse/COUCHDB-536
> Project: CouchDB
> Issue Type: Bug
> Components: HTTP Interface
> Affects Versions: 0.10, 1.1
> Environment: Ubuntu Linux 8.04 32bit and 64bit with Erlang R13B01
> or Ubuntu Linux 8.04 64bit with Erlang R14B02
> Reporter: Simon Eisenmann
> Attachments: couchdb_database_open-week.png,
> couchdb_httpd_request_methods-week.png, couchdb_httpd_response_codes-week.png
>
>
> Having 3 Couches all replicating a couple of databases to each other (pull
> replication with a update notification process) the HTTP service on any of
> the Couches stops working at some point (when running for a couple of ours
> with constant changes on all databases and servers).
> This is the error when a new HTTP request comes in:
> =ERROR REPORT==== 19-Oct-2009::10:18:55 ===
> application: mochiweb
> "Accept failed error"
> "{error,enfile}"
> [error] [<0.21619.12>] {error_report,<0.24.0>,
> {<0.21619.12>,crash_report,
> [[{initial_call,{mochiweb_socket_server,acceptor_loop,['Argument__1']}},
> {pid,<0.21619.12>},
> {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,<0.1.0>]},
> {messages,[]},
> {links,[<0.66.0>]},
> {dictionary,[]},
> {trap_exit,false},
> {status,running},
> {heap_size,233},
> {stack_size,24},
> {reductions,202}],
> []]}}
> [error] [<0.66.0>] {error_report,<0.24.0>,
> {<0.66.0>,std_error,
> {mochiweb_socket_server,225,{acceptor_error,{error,accept_failed}}}}}
> To me this seems like it runs out of threads or sockets to handle the new
> connection or somewhat like this.
> Also i see in this setup that if i put lots of changes in a short time at
> some point the replication process hangs (never finishes) and when trying to
> restart the same replication once again is not possible and resulting in a
> timeout.
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