Jeff Kaufman
d55c2d7a2c
* many files had no license comments at all * some files had license comments suggesting that they weren't open source (like a terse "all rights reserved") when they actually are open source. * all our files are licensed under apache and should be marked as such
36 lines
1.4 KiB
Bash
Executable File
36 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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#
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# Copyright 2012 Google Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# Makes linux enable fast reuse of sockets in TIME-WAIT state. We need this for
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# load testing so that we don't run out of connection table slots and fail to
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# get a socket. This isn't generally a good idea to set on public-facing
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# servers because of trouble with NATs, but is fine here.
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#
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# This scripts prompts you for your su password if TIME-WAIT recycling isn't
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# already enabled.
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set -e # exit script if any command returns an error
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set -u # exit the script if any variable is uninitialized
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recycle_file=/proc/sys/net/ipv4/tcp_tw_recycle
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if [ $(cat $recycle_file) -ne 1 ]; then
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echo "Putting a '1' in proc/sys/net/ipv4/tcp_tw_recycle to avoid"
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echo "running out of port numbers (due to old ones being in TIME_WAIT state)."
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echo 1 >/tmp/1
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sudo cp /tmp/1 $recycle_file
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rm /tmp/1
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fi
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