NAME¶

nbdkit-limit-filter - limit number of clients that can connect concurrently

SYNOPSIS¶

 nbdkit --filter=limit PLUGIN [limit=N]

DESCRIPTION¶

"nbdkit-limit-filter" is an nbdkit filter that limits the number of clients which can connect concurrently. If more than "limit=N" (default: 1) clients try to connect at the same time then later clients are rejected.

PARAMETERS¶

limit=N

Limit the number of concurrent clients to "N". This parameter is optional. If not specified then the limit defaults to 1. You can also set this to 0 to make the number of clients unlimited (ie. disable the filter).

FILES¶

$filterdir/nbdkit-limit-filter.so

The filter.

Use "nbdkit --dump-config" to find the location of $filterdir.

VERSION¶

"nbdkit-limit-filter" first appeared in nbdkit 1.20.

SEE ALSO¶

nbdkit(1), nbdkit-exitlast-filter(1), nbdkit-exitwhen-filter(1), nbdkit-ip-filter(1), nbdkit-noparallel-filter(1), nbdkit-rate-filter(1), nbdkit-filter(3), nbdkit-plugin(3).

AUTHORS¶

Richard W.M. Jones

COPYRIGHT¶

Copyright (C) 2020 Red Hat Inc.

LICENSE¶

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
• Neither the name of Red Hat nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.