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From: Apache Wiki <wikidiffs@apache.org>
To: Apache Wiki <wikidiffs@apache.org>
Date: Thu, 05 Jan 2012 15:18:01 -0000
Message-ID: <20120105151801.19875.48486@eos.apache.org>
Subject: 
 =?utf-8?q?=5BCouchdb_Wiki=5D_Update_of_=22Performance=22_by_RandallLeeds?=
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The "Performance" page has been changed by RandallLeeds:
http://wiki.apache.org/couchdb/Performance?action=3Ddiff&rev1=3D14&rev2=3D15

Comment:
Add ERL_MAX_ETS_TABLES note.

  {{{
  export ERL_MAX_PORTS=3D4096
  }}}
+ =

+ CouchDB versions up to 1.1.x also create Erlang Term Storage (ETS) tables=
 for each replication. If you are using a version of CouchDB older than 1.2=
 and must support many replications, also set the {{{ERL_MAX_ETS_TABLES}}} =
variable. The default is approximately 1400 tables.
  =3D=3D=3D PAM and ulimit =3D=3D=3D
  Finally, most *nix operating systems impose various resource limits on ev=
ery process. If your system is set up to use the Pluggable Authentication M=
odules (PAM) system, increasing this limit is straightforward. For example,=
 creating a file named {{{/etc/security/limits.d/100-couchdb.conf}}} with t=
he following contents will ensure that CouchDB can open enough file descrip=
tors to service your increased maximum open databases and Erlang ports:
 =20