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Diffstat (limited to 'doc/src/guide/listeners.asciidoc')
| -rw-r--r-- | doc/src/guide/listeners.asciidoc | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/doc/src/guide/listeners.asciidoc b/doc/src/guide/listeners.asciidoc index 87e77d2..a776a58 100644 --- a/doc/src/guide/listeners.asciidoc +++ b/doc/src/guide/listeners.asciidoc @@ -203,6 +203,24 @@ ranch:set_max_connections(tcp_echo, MaxConns). The change will occur immediately. +=== When running out of file descriptors + +Operating systems have limits on the number of sockets +which can be opened by applications. When this maximum is +reached the listener can no longer accept new connections. The +accept rate of the listener will be automatically reduced, and a +warning message will be logged. + +---- +=ERROR REPORT==== 13-Jan-2016::12:24:38 === +Ranch acceptor reducing accept rate: out of file descriptors +---- + +If you notice messages like this you should increase the number +of file-descriptors which can be opened by your application. How +this should be done is operating-system dependent. Please consult +the documentation of your operating system. + === Using a supervisor for connection processes Ranch allows you to define the type of process that will be used |