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Version 4.2.0 [v4-stable] (rgerhards), 2009-06-23
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- bugfix: light and full delay watermarks had invalid values, badly
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affecting performance for delayable inputs
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- imported all patches from 3.22.1 as of today (see below)
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- bugfix: compile problems in im3195
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Version 4.1.7 [BETA] (rgerhards), 2009-04-22
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- bugfix: $InputTCPMaxSessions config directive was accepted, but not
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honored. This resulted in a fixed upper limit of 200 connections.
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- bugfix: the default for $DirCreateMode was 0644, and as such wrong.
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It has now been changed to 0700. For some background, please see
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http://lists.adiscon.net/pipermail/rsyslog/2009-April/001986.html
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- bugfix: ompgsql did not detect problems in sql command execution
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this could cause loss of messages. The handling was correct if the
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connection broke, but not if there was a problem with statement
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execution. The most probable case for such a case would be invalid
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sql inside the template, and this is now much easier to diagnose.
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Version 4.1.6 [DEVEL] (rgerhards), 2009-04-07
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- added new "csv" property replacer options to enable simple creation
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of CSV-formatted outputs (format from RFC4180 is used)
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- implemented function support in RainerScript. That means the engine
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parses and compile functions, as well as executes a few build-in
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ones. Dynamic loading and registration of functions is not yet
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supported - but we now have a good foundation to do that later on.
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- implemented the strlen() RainerScript function
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- added a template output module
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- added -T rsyslogd command line option, enables to specify a directory
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where to chroot() into on startup. This is NOT a security feature but
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introduced to support testing. Thus, -T does not make sure chroot()
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is used in a secure way. (may be removed later)
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- added omstdout module for testing purposes. Spits out all messages to
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stdout - no config option, no other features
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- added a parser testing suite (still needs to be extended, but a good
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- modified $ModLoad statement so that for modules whom's name starts with
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a dot, no path is prepended (this enables relative-pathes and should
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not break any valid current config)
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- fixed a bug that caused action retries not to work correctly
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situation was only cleared by a restart
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- bugfix: closed dynafile was potentially never written until another
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dynafile name was generated - potential loss of messages
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- improved omfile so that it properly suspends itself if there is an
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i/o or file name generation error. This enables it to be used with
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the full high availability features of rsyslog's engine
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- bugfix: fixed some segaults on Solaris, where vsprintf() does not
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check for NULL pointers
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- improved performance of regexp-based filters
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Thanks to Arnaud Cornet for providing the idea and initial patch.
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- added a new way how output plugins may be passed parameters. This is
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more effcient for some outputs. They new can receive fields not only
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as a single string but rather in an array where each string is seperated.
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- added (some) developer documentation for output plugin interface
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- bugfix: potential abort with DA queue after high watermark is reached
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There exists a race condition that can lead to a segfault. Thanks
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go to vbernetr, who performed the analysis and provided patch, which
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I only tweaked a very little bit.
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- bugfix: imtcp did incorrectly parse hostname/tag
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Thanks to Luis Fernando Muñoz Mejías for the patch.
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Version 4.1.5 [DEVEL] (rgerhards), 2009-03-11
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- bugfix: parser did not correctly parse fields in UDP-received messages
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- added ERE support in filter conditions
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new comparison operation "ereregex"
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- added new config directive $RepeatedMsgContainsOriginalMsg so that the
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"last message repeated n times" messages, if generated, may
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have an alternate format that contains the message that is being repeated
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Version 4.1.4 [DEVEL] (rgerhards), 2009-01-29
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- bugfix: inconsistent use of mutex/atomic operations could cause segfault
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details are too many, for full analysis see blog post at:
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http://blog.gerhards.net/2009/01/rsyslog-data-race-analysis.html
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- bugfix: unitialized mutex was used in msg.c:getPRI
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This was subtle, because getPRI is called as part of the debugging code
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(always executed) in syslogd.c:logmsg.
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- bufgix: $PreserveFQDN was not properly handled for locally emitted
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Version 4.1.3 [DEVEL] (rgerhards), 2008-12-17
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- added $InputTCPServerAddtlFrameDelimiter config directive, which
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enables to specify an additional, non-standard message delimiter
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for processing plain tcp syslog. This is primarily a fix for the invalid
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framing used in Juniper's NetScreen products. Credit to forum user
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Arv for suggesting this solution.
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- added $InputTCPServerInputName property, which enables a name to be
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specified that will be available during message processing in the
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inputname property. This is considered useful for logic that treats
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messages differently depending on which input received them.
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- added $PreserveFQDN config file directive
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Enables to use FQDNs in sender names where the legacy default
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would have stripped the domain part.
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Thanks to BlinkMind, Inc. http://www.blinkmind.com for sponsoring this
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- bugfix: imudp went into an endless loop under some circumstances
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(but could also leave it under some other circumstances...)
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Thanks to David Lang and speedfox for reporting this issue.
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Version 4.1.2 [DEVEL] (rgerhards), 2008-12-04
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- bugfix: code did not compile without zlib
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- security bugfix: $AllowedSender was not honored, all senders were
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permitted instead (see http://www.rsyslog.com/Article322.phtml)
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- security fix: imudp emitted a message when a non-permitted sender
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tried to send a message to it. This behaviour is operator-configurable.
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If enabled, a message was emitted each time. That way an attacker could
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effectively fill the disk via this facility. The message is now
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emitted only once in a minute (this currently is a hard-coded limit,
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if someone comes up with a good reason to make it configurable, we
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will probably do that).
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- doc bugfix: typo in v3 compatibility document directive syntax
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thanks to Andrej for reporting
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- imported other changes from 3.21.8 and 3.20.1 (see there)
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Version 4.1.1 [DEVEL] (rgerhards), 2008-11-26
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- added $PrivDropToGroup, $PrivDropToUser, $PrivDropToGroupID,
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$PrivDropToUserID config directives to enable dropping privileges.
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This is an effort to provide a security enhancement. For the limits of this
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approach, see http://wiki.rsyslog.com/index.php/Security
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- re-enabled imklog to compile on FreeBSD (brought in from beta)
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Version 4.1.0 [DEVEL] (rgerhards), 2008-11-18
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********************************* WARNING *********************************
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This version has a slightly different on-disk format for message entries.
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As a consequence, old queue files being read by this version may have
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an invalid output timestamp, which could result to some malfunction inside
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the output driver. It is recommended to drain queues with the previous
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version before switching to this one.
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********************************* WARNING *********************************
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- greatly enhanced performance when compared to v3.
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- added configuration directive "HUPisRestart" which enables to configure
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HUP to be either a full restart or "just" a leightweight way to
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- enhanced legacy syslog parser to detect year if part of the timestamp
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the format is based on what Cisco devices seem to emit.
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- added a setting "$OptimizeForUniprocessor" to enable users to turn off
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pthread_yield calls which are counter-productive on multiprocessor
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machines (but have been shown to be useful on uniprocessors)
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- reordered imudp processing. Message parsing is now done as part of main
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message queue worker processing (was part of the input thread)
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This should also improve performance, as potentially more work is
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- bugfix: compressed syslog messages could be slightly mis-uncompressed
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if the last byte of the compressed record was a NUL
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- added $UDPServerTimeRequery option which enables to work with
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less acurate timestamps in favor of performance. This enables querying
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of the time only every n-th time if imudp is running in the tight
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receive loop (aka receiving messsages at a high rate)
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- doc bugfix: queue doc had wrong parameter name for setting controlling
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worker thread shutdown period
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- restructured rsyslog.conf documentation
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- bugfix: memory leak in ompgsql
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Thanks to Ken for providing the patch
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Version 3.22.1 [v3-stable] (rgerhards), 2009-04-??
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- bugfix: invalid error message issued if $inlcudeConfig was on an empty
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set of files (e.g. *.conf, where none such files existed)
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thanks to Michael Biebl for reporting this bug
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- bugfix: when run in foreground (but not in debug mode), a
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debug message ("DoDie called") was emitted at shutdown. Removed.
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thanks to Michael Biebl for reporting this bug
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- bugfix: some garbagge was emitted to stderr on shutdown. This
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garbage consisted of file names, which were written during
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startup (key point: not a pointer error)
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thanks to Michael Biebl for reporting this bug
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- bugfix: startup and shutdown message were emitted to stdout
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thanks to Michael Biebl for reporting this bug
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- bugfix: error messages were not emitted to stderr in forked mode
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(stderr and stdo are now kept open across forks)
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- bugfix: internal messages were emitted to whatever file had fd2 when
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rsyslogd ran in forked mode (as usual!)
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Thanks to varmojfekoj for the patch
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- small enhancement: config validation run now exits with code 1 if an
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error is detected. This change is considered important but small enough
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to apply it directly to the stable version. [But it is a border case,
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the change requires more code than I had hoped. Thus I have NOT tried
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to actually catch all cases, this is left for the current devel
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releases, if necessary]
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- bugfix: light and full delay watermarks had invalid values, badly
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affecting performance for delayable inputs
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- bugfix: potential segfault issue when multiple $UDPServerRun directives
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are specified. Thanks to Michael Biebl for helping to debug this one.
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- relaxed GnuTLS version requirement to 1.4.0 after confirmation from the
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field that this version is sufficient
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- bugfix: parser did not properly handle empty structured data
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Version 3.22.0 [v3-stable] (rgerhards), 2009-04-21
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This is the first stable release that includes the full functionality
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of the 3.21.x version tree.
added
removed
ChangeLog
