devel

Version 3.21.5 [DEVEL] (rgerhards), 2008-09-30

• performance optimization: unnecessary time() calls during message
  parsing removed – thanks to David Lang for his excellent performance
  analysis

• added new capability to property replacer: multiple immediately
  successive field delimiters are treated as a single one.
  Thanks to Zhuang Yuyao for the patch.

• added message property “inputname”, which contains the name of the
  input (module) that generated it. Presence is depending on suport in
  each input module (else it is blank).

• added system property “$myhostname”, which contains the name of the
  local host as it knows itself.

• imported a number of fixes and enhancements from the stable and
  devel branches, including a fix to a potential segfault on HUP
  when using UDP listners

• re-enabled gcc builtin atomic operations and added a proper
  ./configure check

• bugfix: potential race condition when adding messages to queue
  There was a wrong order of mutex lock operations. It is hard to
  believe that really caused problems, but in theory it could and with
  threading we often see that theory becomes practice if something is only
  used long enough on a fast enough machine with enough CPUs ;)

• cleaned up internal debug system code and made it behave better
  in regard to multi-threading

Version 3.21.4 [DEVEL] (rgerhards), 2008-09-04

• removed compile time fixed message size limit (was 2K), limit can now
  be set via $MaxMessageSize global config directive (finally gotten rid
  of MAXLINE ;))

• enhanced doc for $ActionExecOnlyEveryNthTimeTimeout
• integrated a number of patches from 3.18.4, namely
  • bugfix: order-of magnitude issue with base-10 size definitions
    in config file parser. Could lead to invalid sizes, constraints
    etc for e.g. queue files and any other object whose size was specified
    in base-10 entities. Did not apply to binary entities. Thanks to
    RB for finding this bug and providing a patch.

  • bugfix: action was not called when system time was set backwards
    (until the previous time was reached again). There are still some
    side-effects when time is rolled back (A time rollback is really a bad
    thing to do, ideally the OS should issue pseudo time (like NetWare did)
    when the user tries to roll back time). Thanks to varmojfekoj for this
    patch.

  • doc bugfix: rsyslog.conf man page improved and minor nit fixed
    thanks to Lukas Kuklinek for the patch.

Version 3.21.3 [DEVEL] (rgerhards), 2008-08-13

• added ability to specify flow control mode for imuxsock
• added ability to execute actions only after the n-th call of the action
  This also lead to the addition of two new config directives:
  $ActionExecOnlyEveryNthTime and $ActionExecOnlyEveryNthTimeTimeout
  This feature is useful, for example, for alerting: it permits you to
  send an alert only after at least n occurences of a specific message
  have been seen by rsyslogd. This protectes against false positives
  due to waiting for additional confirmation.

• bugfix: IPv6 addresses could not be specified in forwarding actions
  New syntax @[addr]:port introduced to enable that. Root problem was IPv6
  addresses contain colons.

• somewhat enhanced debugging messages
• imported from 3.18.3:
  • enhanced ommysql to support custom port to connect to server
    Port can be set via new $ActionOmmysqlServerPort config directive
    Note: this was a very minor change and thus deemed appropriate to be
    done in the stable release.

  • bugfix: misspelled config directive, previously was
    $MainMsgQueueWorkeTimeoutrThreadShutdown, is now
    $MainMsgQueueWorkerTimeoutThreadShutdown. Note that the misspelled
    directive is not preserved – if the misspelled directive was used
    (which I consider highly unlikely), the config file must be changed.
    Thanks to lperr for reporting the bug.

Version 3.21.2 [DEVEL] (rgerhards), 2008-08-04

• added $InputUnixListenSocketHostName config directive, which permits to
  override the hostname being used on a local unix socket. This is useful
  for differentiating “hosts” running in several jails. Feature was
  suggested by David Darville, thanks for the suggestion.

• enhanced ommail to support multiple email recipients. This is done by
  specifying $ActionMailTo multiple times. Note that this introduces a
  small incompatibility to previous config file syntax: the recipient
  list is now reset for each action (we honestly believe that will
  not cause any problem – apologies if it does).

• enhanced troubleshooting documentation

Version 3.21.1 [DEVEL] (rgerhards), 2008-07-30

• bugfix: no error was reported if the target of a $IncludeConfig
  could not be accessed.

• added testbed for common config errors
• enhanced config file checking – no active actions are detected
• added -N rsyslogd command line option for a config validation run
  (which does not execute actual syslogd code and does not interfere
  with a running instance)

• somewhat improved emergency configuration. It is now also selected
  if the config contains no active actions

• rsyslogd error messages are now reported to stderr by default. can be
  turned off by the new “$ErrorMessagesToStderr off” directive

Thanks to HKS for suggesting the new features.