mysql - ejabberd "mysql_conn: Received unknown signal, exiting" error -


i use ejabberd 2.1.12. seems work fine, in logs keep getting mysql connection errors. thought because of mod_roster_odbc (according i.e. this thread, disabled mod_roster , mod_shared_roster , nothing has changed).

i on amazon ec2 on ubuntu 12.04. errors raised 2 minutes after connecting users chat.

update: have found pattern here. when connect few users (using adium), every few minutes there few errors that. not depends on connected users count because same 2 , 8 connected users. every error 1 more mysql connection if 5 errors have 5 new connections, after while goes initial connections number.

here log:

=error report==== 2013-05-09 19:52:55 === e(<0.585.0>:ejabberd_odbc:552) : mysql_conn: received unknown signal, exiting : {mysql_recv,                                                                                  <0.586.0>,                                                                                  closed,                                                                                  normal}  =info report==== 2013-05-09 19:52:55 === i(<0.585.0>:ejabberd_odbc:550) : closing connection #port<0.3454>: ok

update2: traced mysql activity giavac suggested , while ejabberd errors occurring can see in mysql logs:

130511  9:35:28    17 connect   ejabberd@127.0.0.1 on                17 query use ejabberd                17 query set names 'utf8'                18 connect   ejabberd@127.0.0.1 on                18 query use ejabberd                19 connect   ejabberd@127.0.0.1 on                18 query set names 'utf8'                19 query use ejabberd                19 query set names 'utf8'                20 connect   ejabberd@127.0.0.1 on                20 query use ejabberd                20 query set names 'utf8'

i have no idea come , why cause error. more suggestions?


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