https://www.ejabberd.im/forum/29701/crash-failed-tcp-accept-too-many-open-files en https://www.ejabberd.im/forum/29701/crash-failed-tcp-accept-too-many-open-files#comment-67692 <p>It's strange. Is there any clue in the result of lsof? in my test server with just one client connected:</p> <pre> $ lsof -p 1583 | wc -l 78 $ lsof -p 1583 ... beam.smp 1583 bernar mem REG 8,7 14608 253085 /lib/x86_64-linux-gnu/libdl-2.24.so beam.smp 1583 bernar mem REG 8,7 162608 253078 /lib/x86_64-linux-gnu/ld-2.24.so ... beam.smp 1583 bernar 35u REG 8,7 7404 791648 /usr/local/var/lib/ejabberd/passwd.DAT beam.smp 1583 bernar 36u REG 8,7 14255 791658 /usr/local/var/lib/ejabberd/privacy.DAT beam.smp 1583 bernar 37u REG 8,7 5464 791652 /usr/local/var/lib/ejabberd/private_storage.DAT beam.smp 1583 bernar 38u REG 8,7 5464 791700 /usr/local/var/lib/ejabberd/pubsub_item.DAT beam.smp 1583 bernar 39u REG 8,7 5464 791667 /usr/local/var/lib/ejabberd/roster_version.DAT beam.smp 1583 bernar 40u REG 8,7 5464 791590 /usr/local/var/lib/ejabberd/pubsub_item_3.DAT beam.smp 1583 bernar 41u REG 8,7 5464 791656 /usr/local/var/lib/ejabberd/push_session.DAT beam.smp 1583 bernar 42u REG 8,7 5464 791685 /usr/local/var/lib/ejabberd/vcard.DAT beam.smp 1583 bernar 43u IPv6 1335239 0t0 TCP *:xmpp-client (LISTEN) beam.smp 1583 bernar 44u IPv6 1335240 0t0 TCP *:xmpp-server (LISTEN) beam.smp 1583 bernar 45u IPv6 1335241 0t0 TCP *:5280 (LISTEN) beam.smp 1583 bernar 46u IPv6 1517431 0t0 TCP localhost:xmpp-client-&gt;localhost:39025 (ESTABLISHED) </pre> Wed, 08 Nov 2017 13:04:03 +0000 badlop comment 67692 at https://www.ejabberd.im