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Document MUTEX_TIMEOUT in release notes and change log

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git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@153 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
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teastep 2002-07-24 14:34:28 +00:00
parent 6e238a6e4e
commit 1c235e096d
3 changed files with 22 additions and 0 deletions
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2
Shorewall/changelog.txt
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@ -17,3 +17,5 @@ Changes since 1.3.4
7. Centralize the adding of IP aliases 7. Centralize the adding of IP aliases
8. Added MUTEX_TIMEOUT variable.

17
Shorewall/releasenotes.txt
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@ -14,3 +14,20 @@ In this release:
3. The time that the counters were last reset is now displayed in the 3. The time that the counters were last reset is now displayed in the
heading of the 'status' and 'show' commands. heading of the 'status' and 'show' commands.
4. Added MUTEX_TIMEOUT variable in shorewall.conf and changed the way
in which Shorewall protects itself from concurrent state
changes.
Previously, if a state-changing operation (like restart)
found a lock file, it would wait for 30 seconds for the lock file to
be removed. If the file was not removed within 30 seconds, a message
was issued and the operation was aborted.
With the new code, the wait time is determined by the value of
MUTEX_TIMEOUT (default 60 seconds). If the file is not removed
within MUTEX_TIMEOUT, the state-changing operation will assume that
the lock file is stale and will issue a message and continue.
An appopriate setting for MUTEX_TIMEOUT is twice the time that it takes
your firewall system to process a "shorewall restart" command.

3
Shorewall/shorewall.conf
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@ -300,6 +300,9 @@ MERGE_HOSTS=Yes
# that the last program to hold the lock died without releasing the lock. # that the last program to hold the lock died without releasing the lock.
# #
# If not set or set to the empty value, a value of 60 (60 seconds) is assumed. # If not set or set to the empty value, a value of 60 (60 seconds) is assumed.
#
# An appropriate value for this parameter would be twice the length of time
# that it takes your firewall system to process a "shorewall restart" command.
MUTEX_TIMEOUT=60 MUTEX_TIMEOUT=60