rsyslog

High-performance log ingestion and ETL engine

rsyslog

High-performance log ingestion and ETL engine

Changelog for 5.8.2. (v5-stable)

adisconteamChangelog, , , ,

Version 5.8.2 [V5-stable] (rgerhards), 2011-06-21

  • bugfix: problems in failover action handling
    closes: http://bugzilla.adiscon.com/show_bug.cgi?id=270
    closes: http://bugzilla.adiscon.com/show_bug.cgi?id=254

  • bugfix: mutex was invalidly left unlocked during action processing
    At least one case where this can occur is during thread shutdown, which
    may be initiated by lower activity. In most cases, this is quite
    unlikely to happen. However, if it does, data structures may be
    corrupted which could lead to fatal failure and segfault. I detected
    this via a testbench test, not a user report. But I assume that some
    users may have had unreproducable aborts that were cause by this bug.

  • bugfix: memory leak in imtcp & subsystems under some circumstances
    This leak is tied to error conditions which lead to incorrect cleanup
    of some data structures. [backport from v6]

  • bugfix/improvement:$WorkDirectory now gracefully handles trailing slashes

rsyslog 5.9.0 (devel) released

adisconteamNews, Release Announcement,

This version starts a new development branch for version v5 which brings some new, not-so-intrusive features. This release includes enhancements for imfile, support for TCP KEEP ALIVE and a way to name actions (primarily for impstats).

Note that the main development activity is still focused at version 6.
So this release is only for those interested in the minor enhancements to v5.

ChangeLog:

http://www.rsyslog.com/changelog-for-5-9-0-v5-devel/

Download:

http://www.rsyslog.com/rsyslog-5-9-0-devel/

As always, feedback is appreciated.

Best regards,
Tom Bergfeld

Changelog for 5.9.0 (v5-devel)

adisconteamChangelog, , , ,

Version 5.9.0 [V5-DEVEL] (rgerhards), 2011-06-08

  • imfile: added $InputFileMaxLinesAtOnce directive
  • enhanced imfile to support input batching
  • added capability for imtcp and imptcp to activate keep-alive packets
    at the socket layer. This has not been added to imttcp, as the latter is
    only an experimental module, and one which did not prove to be useful.
    reference: http://kb.monitorware.com/post20791.html

  • added support to control KEEPALIVE settings in imptcp
    this has not yet been added to imtcp, but could be done on request.

  • $ActionName is now also used for naming of queues in impstats
    as well as in the debug output

  • bugfix: do not open files with full privileges, if privs will be dropped
    This make the privilege drop code more bulletproof, but breaks Ubuntu’s
    work-around for log files created by external programs with the wrong
    user and/or group. Note that it was long said that this “functionality”
    would break once we go for serious privilege drop code, so hopefully
    nobody still depends on it (and, if so, they lost…).

  • bugfix: pipes not opened in full priv mode when privs are to be dropped
  • this begins a new devel branch for v5
  • better handling of queue i/o errors in disk queues. This is kind of a
    bugfix, but a very intrusive one, this it goes into the devel version
    first. Right now, “file not found” is handled and leads to the new
    emergency mode, in which disk action is stopped and the queue run
    in direct mode. An error message is emited if this happens.

  • added support for user-level PRI provided via systemd
  • added new config directive $InputTCPFlowControl to select if tcp
    received messages shall be flagged as light delayable or not.

  • enhanced omhdfs to support batching mode. This permits to increase
    performance, as we now call the HDFS API with much larger message
    sizes and far more infrequently

  • bugfix: failover did not work correctly if repeated msg reduction was on
    affected directive was: $ActionExecOnlyWhenPreviousIsSuspended on
    closes: http://bugzilla.adiscon.com/show_bug.cgi?id=236

rsyslog 6.3.1 (devel) released

Adiscon SupportNews, Release Announcement, , , ,

This is a first implementation of a full-blown DNS cache. While there were some optimizations for DNS queries in older releases, especially UDP sometimes suffered under slow DNS resolution performance.

This is solved with the new dnscache module. Note that the module will undergo some more enhancements in the next couple of weeks. Feedback on its effect would be deeply appreciated.

ChangeLog:

http://www.rsyslog.com/changelog-for-6-3-1-devel/

Download:

http://www.rsyslog.com/rsyslog-6-3-1-devel/

As always, feedback is appreciated.

Best regards,
Florian Riedl

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