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            The Apache Tomcat Connector - News

   2010 News and Status

   2010 News & Status
     1 March - JK-1.2.30 released
       The Apache Tomcat team is proud to announce the immediate
       availability of Tomcat Connectors 1.2.30. This is a stable release
       concentrating mainly on some bug fixes.

       Please see the ChangeLog for a full list of changes.

       If you find any bugs while using this release, please fill in the
       Bugzilla Bug Report.

     1 March - JK-1.2.29 withdrawn
       Tomcat Connectors 1.2.29 has been withdrawn because of regression
       inside Microsoft IIS connector.

     26 February - JK-1.2.29 released
       The Apache Tomcat team is proud to announce the immediate
       availability of Tomcat Connectors 1.2.29. This is a stable release
       concentrating mainly on some bug fixes.

       Please see the ChangeLog for a full list of changes.

       If you find any bugs while using this release, please fill in the
       Bugzilla Bug Report.
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            The Apache Tomcat Connector - News

   2009 News and Status

   2009 News & Status
     22 March - JK-1.2.28 released
       The Apache Tomcat team is proud to announce the immediate
       availability of Tomcat Connectors 1.2.28. This is a stable release
       concentrating mainly on some bug fixes.

       Please see the ChangeLog for a full list of changes.

       If you find any bugs while using this release, please fill in the
       Bugzilla Bug Report.

       The most important new features in this version are:

       Better Error Detection for Load Balancer Workers

       Local and global error states have been improved. You can fine tune
       the behaviour with the new "error_escalation_time" attribute (see the
       timeouts documentation).

       Dynamic Address and Port Change Using the Status Worker

       The status worker now allows you to change the address and the port
       of an AJP13 worker on the fly. You can e.g. provision dummy workers
       with a port equal to "0", which will be automatically put into
       stopped mode during startup. Later, when you want to actually use
       thse workers, you set their address and port to the final values.

       Note that already existing connections will go on using the old
       address and port. This will be improved in future versions.

       New Data in Status Worker Display

       The status worker display now also contains the timestamp of the last
       worker errors.

       Improved Proxy Flexibility

       You can now overwrite more request metadata before the request gets
       send to the backend. This is helpful in case there are other reverse
       proxies in front of your web server. A new documentation page
       explains this in detail.

       Improved IIS Support

       IIS support has been improved especially when using mutltiple
       application pools. Furthermore you can now configure the ISAPI plugin
       to update the uriworkermap.properies file on a regular interval using
       the watchdog thread.

       JNI Worker Deprecation

       Workers of type jni are broken since a long time. Since there is no
       more use for them, they have been deprecated now, and will be removed
       in a future release.
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            The Apache Tomcat Connector - News

   2008 News and Status

   2008 News & Status
     28 October - JK-1.2.27 released
       The Apache Tomcat team is proud to announce the immediate
       availability of Tomcat Connectors 1.2.27. This is a stable release
       adding lots of new features and some bug fixes.

       Please see the ChangeLog for a full list of changes.

       If you find any bugs while using this release, please fill in the
       Bugzilla Bug Report.

       The most important new features in this version are:

       Watchdog Thread for Periodic Tasks

       The connector has to run some periodic tasks independant of request
       processing. Examples are probing or closing down idle backend
       connections, adjusting load numbers and recovering workers from error
       state.

       Before version 1.2.27 these tasks were done inside the request
       processing loop. When a new request came in and the task was due, the
       thread handling the request first executed the internal task and then
       handled the request. If there were no requests coming in, the tasks
       would not run. If any of the tasks took unexpectedly long, the
       response time of the request waiting for the finishing of the task
       went up.

       Starting with this release you can configure a separate watchdog
       thread inside the web server to run all those tasks independantly of
       request processing. This new feature is avaliable for the connector
       when used with Apache httpd 2.x or with Microsoft IIS. To keep the
       behaviour of the new version consistent with previous releases, this
       feature is turned off by default. You can activate the watchdog
       thread via JkWatchdogInterval for Apache or watchdog_interval for
       IIS.

       Connection Probing

       In previous releases connection probing (checking whether connections
       still work) could only be done immediately after a new connection was
       established and directly before sending each request. Since we now
       have the watchdog thread available, we also added a periodic probing
       option, which you can activate with the worker attribute ping_mode.
       This will also be useful as a protection against the infamous
       firewall idle connection drop.

       The older attributes connect_timeout and prepost_timeout still exist
       and work the same way they did in previous releases. Since there are
       now three different probing options, we recommend to migrate your
       configuration to the newer attributes ping_mode, ping_timeout and
       connection_ping_interval.

       Mount Extensions

       Usually one defines workers and mounts for the connector. A worker
       defines a backend we want to talk to and the configuration parameters
       of the communication, connection pools etc. The mounts define which
       URIs we want to forward to which worker (so we also call a mount an
       URI map rule). In version 1.2.27 you can overwrite certain worker
       parameter per mount.

       One easy to understand example is reply timeouts. Until this release
       you had to specify a reply timeout for the whole worker. But reply
       times depend a lot on the type of request. So normally you want to
       define a general reply timeout and for some special URLs you need to
       relax the reply timeout, because you know those URLs take much longer
       to process (like e.g. reporting or other compute intensive tasks).

       Another possible case is the activation status. You might use a load
       balancer worker to forward requests to certain webapps in a farm of
       Tomcat nodes. If you wanted to update some webapp on one node, you
       previously had to stop forwarding requests for all webapps on this
       Tomcat node. What was not possible until now, was stopping forwarding
       requests restricted to the webapp and the node you wanted to update.

       Starting with this release, you can add so-called rule extensions to
       your uriworkermap file to influence worker parameters per mount. This
       will work for all Apache versions and for IIS. Remember, that the
       uriworkermap file automatically gets reloaded after changes without
       web server restart.

       Improved IIS support

       We improved IIS support im various ways. It is now possible to use
       multiple IIS 6 application pools with the ISAPI redirector.

       Furthermore some improvements were added as compile time features.
       The most notable one is chunked encoding support, which was a major
       refactoring and is therefore still considered experimental. You can
       download binaries with and without chunked encoding support. In
       future versions, chunked encoding will likely be availabe in all
       builds.

       Another new feature is an elegant way of configuring error page
       redirects. All new features are documented on the documentation page
       about configuring IIS.

       Enhanced Status Worker

       The status worker now can also manage and show statistics for AJP
       workers that are not part of a load balancer. Other improvements are
       the new dump action, the integration of the new configuration
       attributes, showing average request and transfer rates since the last
       statistics reset and the ability to display only a single member of a
       load balancer.

       Unfortunately we had to change some request parameters used for the
       update action of the status worker.

       Miscellaneous Improvements

       Further enhancements are:

         * Configurable session stickyness indicator: cookie name and URL
           path parameter name can be freely chosen instead of the servlet
           spec compliant JSESSIONID and ;jsessionid.
         * Automatically determining the size of the shared memory segment
           needed to accommodate all workers.
         * New connection establishment timeout socket_connect_timeout.
         * New timeout connection_acquire_timeout for acquiring a free
           connection from the pool.
         * Improved retry handling by adjusting the meaning of the attribute
           retries for AJP workers and for load balancers and by adding the
           new retry_interval.
         * Allowing the web server to provide error pages instead of Tomcat.
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            The Apache Tomcat Connector - News

   2007 News and Status

   2007 News & Status
     21 December - JK-1.2.26 released

     The Apache Tomcat team is proud to announce the immediate availability
     of Tomcat Connectors 1.2.26. This is a stable release adding few new
     features and some bug fixes.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs while using this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     7 August - JK-1.2.25 released

     The Apache Tomcat team is proud to announce the immediate availability
     of Tomcat Connectors 1.2.25. This is a stable release adding new
     features and a few bug fixes.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs while using this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     27 July - JK-1.2.24 released

     This release has been withdrawn.

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     18 May - JK-1.2.23 released

     The Apache Tomcat team is proud to announce the immediate availability
     of Tomcat Connectors 1.2.23. This is a stable release adding new
     features and a few bug fixes to version 1.2.23.

     It fixes an Important vulnerability.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs while using this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     17 April - JK-1.2.22 released

     The Apache Tomcat team is proud to announce the immediate availability
     of Tomcat Connectors 1.2.22. This is a stable release adding new
     features and a few bug fixes to version 1.2.22.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs while using this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     1 March - JK-1.2.21 released

     The Apache Tomcat team is proud to announce the immediate availability
     of Tomcat Connectors 1.2.21. This is a stable release adding new
     features and a few bug fixes to version 1.2.20.

     It fixes a Critical vulnerability introduced in version 1.2.19

     Please see the ChangeLog for a full list of changes.

     If you find any bugs while using this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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            The Apache Tomcat Connector - News

   2006 News and Status

   2006 News & Status
     10 December - JK-1.2.20 released

     The Apache Tomcat team is proud to announce the immediate availability
     of Tomcat Connectors 1.2.20. This is a stable release adding new
     features and a few bug fixes to version 1.2.19. Furthermore the
     documentation has been reorganised.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs while using this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     17 September - JK-1.2.19 released

     The Apache Tomcat team is proud to announce the immediate availability
     of Tomcat Connectors 1.2.19. This is a stable release adding some
     features and a few bug fixes to version 1.2.18. Furthermore the
     non-functional code trees for isapi and domino have been removed.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs while using this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     13 July - JK-1.2.18 released

     The Apache Tomcat team is proud to announce the immediate availability
     of Tomcat Connectors 1.2.18. This is a stable release adding a few bug
     fixes to the not released 1.2.17 version.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs while using this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     JK-1.2.17 not released

     Version 1.2.17 of Tomcat Connectors 1.2.17 has not been released due to
     a bug in the types chosen for socket arguments.

     Please see the ChangeLog for a full list of changes.

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     JK-1.2.16 not released

     Version 1.2.16 of Tomcat Connectors 1.2.16 has not been released due to
     a bug in the jk status worker. This version adds some features and a
     few bug fixes to the 1.2.15 version. Furthermore some worker attributes
     have been deprecated.

     Please see the ChangeLog for a full list of changes.

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            The Apache Tomcat Connector - News

   2005 News and Status

   2005 News & Status
     8 November - JK-1.2.15 released

     The Apache Tomcat team is proud to announce the immediate availability
     of Jakarta Tomcat Connectors 1.2.15. This is Stable release and it
     contains few bug fixes found in 1.2.14 version.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs while using this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     13 July - JK-1.2.14 released

     The Apache Tomcat team is proud to announce the immediate availability
     of Jakarta Tomcat Connectors 1.2.14. This is Stable release and it
     contains few bug fixes found in 1.2.13 version.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs while using this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     7 May - JK-1.2.13 released

     The Apache Jakarta Tomcat team is proud to announce the immediate
     availability of Jakarta Tomcat Connectors 1.2.13. This is development
     release and contains few bug fixes found in 1.2.12 version.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs while using this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     7 May - JK-1.2.12 released

     The Apache Jakarta Tomcat team is proud to announce the immediate
     availability of Jakarta Tomcat Connectors 1.2.12 The release contains a
     significant number of bug fixes and new features.

     We expect it to be ratified as a Stable release when the vote takes
     place in the next week.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs while using this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     29 April - JK-1.2.11 released

     The Apache Jakarta Tomcat team is proud to announce the immediate
     availability of Jakarta Tomcat Connectors 1.2.11 The release contains a
     significant number of bug fixes and new features.

     This version has not been released.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs while using this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     30 March - JK-1.2.10 released

     The Apache Jakarta Tomcat team is proud to announce the immediate
     availability of Jakarta Tomcat Connectors 1.2.10 The release contains a
     significant number of bug fixes and new features.

     We expect it to be ratified as a Stable release when the vote takes
     place in the next two weeks.

     Please see the ChangeLog for a full list of changes.

     Since release 1.2.10 the JkShmFile property has been added for Apache
     1.3.x and Apache 2.x web servers on UNIX and LINUX platforms. Load
     balancer will not work properly if this directive is not present.

     If you find any bugs while using this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     18 March - JK-1.2.9-beta released

     The Apache Jakarta Tomcat team is proud to announce the immediate
     availability of Jakarta Tomcat Connectors 1.2.9-beta. The release
     contains a significant number of bug fixes and new features.

     We expect it to be ratified as a Stable release when the vote takes
     place in the next two weeks.

     Please see the ChangeLog for a full list of changes.

     Since release 1.2.9 the JkShmFile property has been added for Apache
     1.3.x and Apache 2.x web servers on UNIX and LINUX platforms. Load
     balancer will not work properly if this directive is not present.

     If you find any bugs during testing this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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            The Apache Tomcat Connector - News

   2004 News and Status

   2004 News & Status
     17 December - JK-1.2.8 released

     The Apache Jakarta Tomcat team is proud to announce the immediate
     availability of Jakarta Tomcat Connectors 1.2.8.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs during testing this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     17 December - JK-1.2.8-rc-1 released

     The Apache Jakarta Tomcat team is proud to announce the immediate
     availability of Jakarta Tomcat Connectors 1.2.8-rc-1 (Relase Canditate
     1).

     We expect it to be ratified as a Stable release when the vote takes
     place in the next week.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs during testing this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     13 December - JK-1.2.7-beta-3 released

     The Apache Jakarta Tomcat team is proud to announce the immediate
     availability of Jakarta Tomcat Connectors 1.2.7-beta-3. The release
     contains a fix to few configuration problems detected with
     JK-1.2.7-beta-2 version.

     We expect it to be ratified as a Stable release when the vote takes
     place in the next week.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs during testing this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     7 December - JK-1.2.7-beta-2 released

     The Apache Jakarta Tomcat team is proud to announce the immediate
     availability of Jakarta Tomcat Connectors 1.2.7-beta-2. The release
     contains a fix to few compilation problems detected with JK-1.2.7-beta
     version. This release also introduces a new domain concept clustering
     support. See 32317 for details.

     We expect it to be ratified as a Stable release when the vote takes
     place in the next two weeks.

     Please see the ChangeLog for a full list of changes.

     If you find any bugs during testing this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     30 November - JK-1.2.7-beta released

     The Apache Jakarta Tomcat team is proud to announce the immediate
     availability of Jakarta Tomcat Connectors 1.2.7-beta. The release
     contains a significant number of bug fixes and new features.

     We expect it to be ratified as a Stable release when the vote takes
     place in the next two weeks.

     Please see the ChangeLog for a full list of changes.

     Since release 1.2.7 the socket_timeout property has been renamed to
     recycle_timeout. The socket_timeout now sets the real timeout for
     socket operations.

     If you find any bugs during testing this release, please fill in the
     Bugzilla Bug Report. When entering bug select Native:JK Component.

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     15 November - JK2 is officially unsupported

     JK2 has been put in maintainer mode and no further development will
     take place. The reason for shutting down JK2 development was the lack
     of developers interest. Other reason was lack of users interest in
     adopting JK2, caused by configuration complexity when compared to JK.

     The latest official JK2 release is 2.0.4.

     JK2 will have it's successor within core Apache2.1/2.2 distribution. We
     have developed new proxy_ajp that is an addition to the mod_proxy and
     uses Tomcat's AJP protocol stack. It is developped in httpd-2.1 and
     integrated in it. We have also developed a new proxy_balancer module
     for load balancing http and ajp protocol stacks.

     JK will be fully supported for all other web servers. The next JK
     release is planned for the end of November. Lots of code from JK2 has
     been ported to JK

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