On Wed, Sep 28, 2016 at 8:13 AM, Mikael Ståldal <mikael.stal...@magine.com>
wrote:

> Kafka server 0.8 is still in use, and newer Kafka clients cannot connect
> to older Kafka servers.
>

There will always be users of old software. That does not mean that new
versions of Log4j must support old software, especially pre-1.0 software.

Gary


>
> On Wed, Sep 28, 2016 at 5:10 PM, Gary Gregory <garydgreg...@gmail.com>
> wrote:
>
>> I do not think it makes sense to support old versions that are not even
>> 1.0.
>>
>> Gary
>>
>> On Wed, Sep 28, 2016 at 7:42 AM, Mikael Ståldal <
>> mikael.stal...@magine.com> wrote:
>>
>>> I fixed the Kafka issue and pushed it to master branch.
>>>
>>> However, I have another concern, what timeout value is actually passed
>>> in to AbstractManager.releaseSub ?
>>>
>>> On Wed, Sep 28, 2016 at 3:51 PM, Mikael Ståldal <
>>> mikael.stal...@magine.com> wrote:
>>>
>>>> -1 since the Kafka appender now only works with Kafka client (and thus
>>>> server) 0.9+, even though we agreed to keep compatibility with 0.8 for the
>>>> time being:
>>>>
>>>> https://issues.apache.org/jira/browse/LOG4J2-1390
>>>>
>>>> The problem appeared with commit 170469514b374eb5a5a33bde6936162fd608f097
>>>> by Gary in KafkaManager.java (method releaseSub).
>>>>
>>>> I get this error with kafka-clients 0.8.2.2:
>>>>
>>>> java.lang.NoSuchMethodError: org.apache.kafka.clients.produ
>>>> cer.Producer.close(JLjava/util/concurrent/TimeUnit;)V
>>>> at org.apache.logging.log4j.core.appender.mom.kafka.KafkaManage
>>>> r.releaseSub(KafkaManager.java:61)
>>>> at org.apache.logging.log4j.core.appender.AbstractManager.stop(
>>>> AbstractManager.java:85)
>>>> at org.apache.logging.log4j.core.appender.mom.kafka.KafkaAppend
>>>> er.stop(KafkaAppender.java:107)
>>>> at org.apache.logging.log4j.core.config.AbstractConfiguration.s
>>>> top(AbstractConfiguration.java:349)
>>>> at org.apache.logging.log4j.core.LoggerContext.stop(LoggerConte
>>>> xt.java:329)
>>>> at org.apache.logging.log4j.core.AbstractLifeCycle.stop(Abstrac
>>>> tLifeCycle.java:127)
>>>> at org.apache.logging.log4j.core.LoggerContext$1.run(LoggerCont
>>>> ext.java:275)
>>>> at org.apache.logging.log4j.core.util.DefaultShutdownCallbackRe
>>>> gistry$RegisteredCancellable.run(DefaultShutdownCallbackRegi
>>>> stry.java:104)
>>>> at org.apache.logging.log4j.core.util.DefaultShutdownCallbackRe
>>>> gistry.run(DefaultShutdownCallbackRegistry.java:74)
>>>> at java.lang.Thread.run(Thread.java:745)
>>>>
>>>>
>>>>
>>>>
>>>> On Mon, Sep 26, 2016 at 5:50 PM, Ralph Goers <
>>>> ralph.go...@dslextreme.com> wrote:
>>>>
>>>>> This is a vote to release Log4j 2.6.2, the next version of the Log4j 2
>>>>> project.
>>>>>
>>>>> Please download, test, and cast your votes on the log4j developers
>>>>> list.
>>>>> [] +1, release the artifacts
>>>>> [] -1, don't release because...
>>>>>
>>>>> The vote will remain open for 72 hours (or more if required). All
>>>>> votes are welcome and we encourage everyone to test the release, but only
>>>>> Logging PMC votes are “officially” counted. As always, at least 3 +1 votes
>>>>> and more positive than negative votes are required.
>>>>>
>>>>> Changes in this version include:
>>>>>
>>>>> New features:
>>>>> o LOG4J2-1578:  RoutingAppender can be configured with scripts. Add 
>>>>> Script in a Routes element.
>>>>> o LOG4J2-1597:  Add a ScriptAppenderSelector to create an Appender 
>>>>> specified by a Script.
>>>>> o LOG4J2-1349:  (GC) Added support for garbage-free ThreadContext map. 
>>>>> Disabled by default, users need to enable this explicitly.
>>>>> o LOG4J2-1447:  (GC) Changed LogEvent's internal data structure for 
>>>>> context data to be garbage-free. Added method LogEvent#getContextData(), 
>>>>> deprecated method #getContextMap().
>>>>> o LOG4J2-1010:  Users can now inject context data from other sources than 
>>>>> ThreadContext. Values can be any Object, not just Strings. Thanks to 
>>>>> Mikael Ståldal.
>>>>> o LOG4J2-1568:  Added support for 
>>>>> java.util.concurrent.LinkedTransferQueue to AsyncAppender.
>>>>> o LOG4J2-1430:  Added optional support for Conversant 
>>>>> DisruptorBlockingQueue in AsyncAppender. Thanks to John Cairns.
>>>>> o LOG4J2-1439:  Added optional support for JCTools MPSC bounded lock-free 
>>>>> queue in AsyncAppender. Thanks to Anthony Maire.
>>>>> o LOG4J2-1558:  SocketAppender now supports IO buffering.
>>>>> o LOG4J2-1557:  Add a Builder for the SocketAppender (deprecates factory 
>>>>> method).
>>>>> o LOG4J2-1609:  Add a Builder to ServletAppender and deprecate factory 
>>>>> method.
>>>>> o LOG4J2-1553:  AbstractManager now implements AutoCloseable.
>>>>> o LOG4J2-1528:  Added ability to generate Log4j 2-style XML configuration 
>>>>> file from ConfigurationBuilder.
>>>>> o LOG4J2-1181:  Added Logging API for Scala 2.10 and 2.11.
>>>>> o LOG4J2-1512:  Added options to exclude stack trace from JSON, XML and 
>>>>> YAML layouts.
>>>>> o LOG4J2-1539:  Added Core API Configurator.shutdown(LoggerContext, long, 
>>>>> TimeUnit).
>>>>> o LOG4J2-1501:  FileAppender is now able to create files on-demand.
>>>>> o LOG4J2-1504:  RollingFileAppender is now able to create files on-demand.
>>>>> o LOG4J2-1471:  [PatternLayout] Add an ANSI option to %xThrowable.
>>>>> o LOG4J2-1472:  org.apache.logging.log4j.core.LoggerContext now 
>>>>> implements Closeable.
>>>>> o LOG4J2-1458:  [PatternLayout] Add an ANSI option to %message.
>>>>> o LOG4J2-1505:  Create a Builder for the FileAppender plugin to 
>>>>> facilitate adding attributes in the future.
>>>>> o LOG4J2-1507:  Allow Builders to be completely generic.
>>>>> o LOG4J2-1508:  Allow a Builder to subclass another Builder.
>>>>> o LOG4J2-1516:  Add ThreadContextMap2 interface supporting method 
>>>>> putAll(Map<String, String>). Thanks to Gary Gregory.
>>>>> o LOG4J2-1519:  Add ThreadContext.putAll(Map<String, String>).
>>>>> o LOG4J2-1520:  Add JUnit Rule implementations to manage the thread 
>>>>> context.
>>>>> o LOG4J2-1547:  The Core AbstractConfiguration now tracks its 
>>>>> LoggerContext and add Configuration.getLoggerContext().
>>>>> o LOG4J2-1540:  The Core AbstractManager now tracks its LoggerContext.
>>>>> o LOG4J2-1577:  Add a Builder to the RoutingAppender and deprecate 
>>>>> factory method.
>>>>>
>>>>> Fixed Bugs:
>>>>> o LOG4J2-1611:  Improved performance of context data injector for web 
>>>>> applications to be on par with standalone applications.
>>>>> o LOG4J2-1591:  Introduced new interface LifeCycle2 with 
>>>>> stop(long,TimeUnit) method to avoid breaking backwards compatibility with 
>>>>> new Configurator.shutdown(LoggerContext, long, TimeUnit) API.
>>>>> o LOG4J2-1590:  Fixed issue with filters extending AbstractFilter that 
>>>>> did not override methods with unrolled varargs.
>>>>> o LOG4J2-1583:  Fixed scrambled log messages triggered by nested logging 
>>>>> from toString() method of a logging parameter object. Thanks to Larry 
>>>>> West.
>>>>> o LOG4J2-1259:  Log4j threads are no longer leaking on Tomcat shutdown. 
>>>>> Thanks to Misagh Moayyed, Steffen Offermann.
>>>>> o LOG4J2-1051:  When starting on Google App Engine, Interpolator now 
>>>>> suppresses the NoClassDefFoundError stack trace  for the jvmrunargs 
>>>>> lookup. Thanks to Lukasz Lenart.
>>>>> o LOG4J2-1582:  When initializing on platforms where JMX is not 
>>>>> available, Interpolator component no longer prints stack trace for 
>>>>> warning messages.
>>>>> o LOG4J2-1581:  Unregistering JMX components no longer prints a stack 
>>>>> trace when the MBean has already been unregistered.
>>>>> o LOG4J2-1313:  Support Property values to be specified in configuration 
>>>>> as a value attribute as well as an element. Thanks to Philipp Knobel, 
>>>>> Leon Finker.
>>>>> o LOG4J2-1575:  (GC) LoggerConfig now stores configuration properties in 
>>>>> a List, not a Map to prevent creating temporary Iterator objects. Added 
>>>>> method LoggerConfig#getPropertyList(), deprecated method #getProperties().
>>>>> o LOG4J2-1457:  Fixed class loader deadlock when using async logging and 
>>>>> extended stack trace pattern. Thanks to Leon Finker.
>>>>> o LOG4J2-1563:  Fix to prevent Log4j 2.6.2 and higher from losing 
>>>>> exceptions when a security manager is present. Thanks to Jason Tedor.
>>>>> o LOG4J2-1530:  Fixed issue where LogEvent.getContextStack() returned 
>>>>> null.
>>>>> o LOG4J2-1518:  Prevent deadlock in Async Loggers when queue is full and 
>>>>> logged Object's toString() logs another message. Thanks to Leon Finker.
>>>>> o LOG4J2-1542:  Prevent ArrayIndexOutOfBoundsException in 
>>>>> ParameterizedMessage.formatTo for single-char or empty messages. Thanks 
>>>>> to Rogério Lecarião Leite.
>>>>> o LOG4J2-1549:  Fixed issue where 
>>>>> AsyncLoggerContextSelector+PropertiesConfigurationBuilder defaulted to 
>>>>> includeLocation=true. Thanks to Jason Bedard.
>>>>> o LOG4J2-1562:  Prevent SocketAppender memory usage from growing 
>>>>> unbounded if it cannot connect to a server.
>>>>> o LOG4J2-1559:  Prevent NPE in Level.isInRange. Thanks to Andrey Plotkin.
>>>>> o LOG4J2-1511:  DynamicThresholdFilter filtered incorrectly when params 
>>>>> were passed as individual arguments instead of varargs. Thanks to 
>>>>> Srikanth Surukuntu.
>>>>> o LOG4J2-1548:  [CronTriggeringPolicy] ConfigurationScheduler scheduled 
>>>>> the task infinitely after first fire.
>>>>> o LOG4J2-1506:  Log4j should not unregister JMX MBeans when 
>>>>> log4j2.disable.jmx property is true. Thanks to Johannes Schleger.
>>>>> o LOG4J2-1490:  Log4j2 should postpone creating log file until the 
>>>>> appender actually receives an event. Thanks to Krzysztof Taborski.
>>>>> o LOG4J2-1320:  Support loading custom plugins from jar files and 
>>>>> directories whose classpath entries use the "vfs" URL protocol. Thanks to 
>>>>> Paresh Varke, Pierrick Hymbert.
>>>>> o LOG4J2-1541:  Fix file handle resource leak in 
>>>>> XmlConfiguration.XmlConfiguration(ConfigurationSource).
>>>>> o LOG4J2-1538:  Prevent NPE when dynamically removing filters. Thanks to 
>>>>> Igor Karpov.
>>>>> o LOG4J2-1532:  Attributes were not merged properly in composite 
>>>>> configurations.
>>>>> o LOG4J2-1529:  Attributes were not merged properly in composite 
>>>>> configurations. Thanks to Sridevi Narra.
>>>>> o LOG4J2-1527:  Prevent NPE in RingBufferLogEvent.getFormattedMessage() 
>>>>> when used in web applications. Thanks to Jose Leon.
>>>>> o LOG4J2-905:  Added ability to disable (date) lookup completely for 
>>>>> compatibility with other libraries like Camel. Thanks to Moritz Löser.
>>>>> o LOG4J2-1526:  Added support for setting StatusLogger destination in 
>>>>> ConfigurationBuilder.
>>>>> o LOG4J2-1448:  Allow comma separated agents, host list to be passed to 
>>>>> FlumeAppender. Thanks to Keith Laban.
>>>>> o LOG4J2-1500:  Merging configurations failed with an NPE when comparing 
>>>>> Nodes with different attributes. Thanks to Jose Leon.
>>>>> o LOG4J2-1482:  Fixed improper header in CsvParameterLayout. Thanks to 
>>>>> Sumit Singhal.
>>>>> o LOG4J2-1199:  Documented that JVM Input Arguments Lookup (JMX) is not 
>>>>> available on Google App Engine.
>>>>> o LOG4J2-1438:  (GC) Added method getParameter() to ObjectMessage (and 
>>>>> ReusableObjectMessage).
>>>>> o LOG4J2-1488:  (GC) Fixed ISO8601 %date conversion pattern with a period 
>>>>> '.' separator for milliseconds is now garbage free. Thanks to Richard 
>>>>> Zschech.
>>>>> o LOG4J2-1489:  (GC) Fixed %date conversion patterns with a timezone 
>>>>> parameter are now garbage free. Thanks to Richard Zschech.
>>>>> o LOG4J2-1279:  Prevent NullPointerException in 
>>>>> FastDateParser$TimeZoneStrategy. Thanks to Tony Baines.
>>>>> o LOG4J2-1341:  (GC) HighlightConverter and StyleConverter are now 
>>>>> GC-free. Thanks to Richard Zschech.
>>>>> o LOG4J2-1467:  [OSGi] Fixed missing import package. Thanks to Ralf, Gary 
>>>>> Gregory.
>>>>> o LOG4J2-351:  [OSGi] Fixed wrong Fragment-Host in manifest files. Thanks 
>>>>> to Roland Weiglhofer.
>>>>> o LOG4J2-1313:  Properties declared in configuration can now have their 
>>>>> value either in the element body or in an attribute named "value". Thanks 
>>>>> to Philipp Knobel.
>>>>> o LOG4J2-1235:  
>>>>> org.apache.logging.log4j.core.appender.routing.IdlePurgePolicy was not 
>>>>> working correctly. Thanks to Niranjan Rao, Sascha Scholz, Aleksey 
>>>>> Zvolinsky.
>>>>> o LOG4J2-1502:  Fixed issue where CsvParameterLayout and 
>>>>> CsvLogEventLayout inserted NUL characters if data starts with {, (, [ or 
>>>>> " Thanks to Sumit Singhal.
>>>>> o LOG4J2-1573:  Layout is no longer optional. Thanks to Steffen Offermann.
>>>>> o LOG4J2-1608:  ServletAppender does not provide throwable object to 
>>>>> ServletContext.
>>>>> o LOG4J2-1599:  Prevent potential NPE in 
>>>>> org.apache.logging.log4j.message.ParameterFormatter.formatMessage3(StringBuilder,
>>>>>  char[], int, Object[], int, int[]).
>>>>> o LOG4J2-1600:  Prevent potential NPE due to 
>>>>> org.apache.logging.log4j.core.layout.MarkerPatternSelector.createSelector(PatternMatch[],
>>>>>  String, boolean, boolean, Configuration).
>>>>> o LOG4J2-1601:  Prevent potential NPE due to 
>>>>> org.apache.logging.log4j.core.layout.ScriptPatternSelector.createSelector(AbstractScript,
>>>>>  PatternMatch[], String, boolean, boolean, Configuration).
>>>>> o LOG4J2-1602:  Prevent potential NPE in 
>>>>> org.apache.logging.log4j.core.util.datetime.FormatCache.MultipartKey.equals(Object)
>>>>>  when object is null.
>>>>> o LOG4J2-1603:  Redo hashCode() and equals() methods in 
>>>>> org.apache.logging.log4j.core.net.ssl classes.
>>>>> o LOG4J2-1610:  Add targetNamespace to log4j-config.xsd. GitHub #43. 
>>>>> Thanks to Shubhankar.
>>>>>
>>>>> Changes:
>>>>> o LOG4J2-1604:  Log4j2 TcpSocketServer in background. Thanks to Colin 
>>>>> Hillman.
>>>>> o LOG4J2-1574:  Allow the RollingFileAppender to use default pattern 
>>>>> layout.
>>>>> o LOG4J2-1556:  Custom Log4j threads now extend Log4jThread.
>>>>> o LOG4J2-1605:  Improve error messages for TcpSocketServer and 
>>>>> UdpSocketServer.
>>>>> o LOG4J2-1458:  Updated Jackson from 2.7.5 to 2.8.0.
>>>>> o LOG4J2-1494:  Updated Jackson from 2.8.0 to 2.8.1.
>>>>> o LOG4J2-1569:  Updated Jackson from 2.8.1 to 2.8.2.
>>>>> o LOG4J2-1598:  Updated Jackson from 2.8.2 to 2.8.3.
>>>>> o LOG4J2-1495:  Updated LMAX Disruptor from 3.3.4 to 3.3.5.
>>>>> o LOG4J2-1496:  Updated Kafka client from 0.9.1.0 to 0.10.0.0.
>>>>> o LOG4J2-1533:  Updated Kafka client from 0.10.0.0 to 0.10.0.1.
>>>>> o LOG4J2-1487:  Updated JMS test from ActiveMQ 5.13.3 to 5.13.4.
>>>>> o LOG4J2-1551:  Updated JMS test from ActiveMQ 5.13.4 to 5.14.0.
>>>>> o LOG4J2-1543:  Removed deprecated Core API 
>>>>> org.apache.logging.log4j.core.util.Constants.UTF_8.
>>>>> o LOG4J2-1544:  Removed deprecated Core API 
>>>>> org.apache.logging.log4j.core.util.Assert.requireNonNull(T, String).
>>>>> o LOG4J2-1545:  Removed deprecated Web API 
>>>>> org.apache.logging.log4j.web.WebLookup.getServletContext().
>>>>>
>>>>> Tag:
>>>>>
>>>>>
>>>>> a)  for a new copy do "git clone 
>>>>> https://git-wip-us.apache.org/repos/asf/logging-log4j2.git"; and then "git 
>>>>> checkout tags/log4j-2.7-rc1”
>>>>> b) for an existing working copy to “git pull” and then “git checkout 
>>>>> tags/log4j-2.7-rc1”
>>>>>
>>>>> Web Site:  
>>>>> <http://rgoers.github.io/log4j2-site/index.html>http://rgoers.github.io/log4j2-site/index.html
>>>>>
>>>>> Artifacts: 
>>>>> https://repository.apache.org/content/repositories/orgapachelogging-1021/
>>>>>
>>>>> You may download all the artifacts by executing:
>>>>>
>>>>> wget -e robots=off --cut-dirs=7 -nH -r -p -np --no-check-certificate 
>>>>> https://repository.apache.org/content/repositories/orgapachelogging-1021/org/apache/logging/log4j/
>>>>>
>>>>> Ralph
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> [image: MagineTV]
>>>>
>>>> *Mikael Ståldal*
>>>> Senior software developer
>>>>
>>>> *Magine TV*
>>>> mikael.stal...@magine.com
>>>> Grev Turegatan 3  | 114 46 Stockholm, Sweden  |   www.magine.com
>>>>
>>>> Privileged and/or Confidential Information may be contained in this
>>>> message. If you are not the addressee indicated in this message
>>>> (or responsible for delivery of the message to such a person), you may
>>>> not copy or deliver this message to anyone. In such case,
>>>> you should destroy this message and kindly notify the sender by reply
>>>> email.
>>>>
>>>
>>>
>>>
>>> --
>>> [image: MagineTV]
>>>
>>> *Mikael Ståldal*
>>> Senior software developer
>>>
>>> *Magine TV*
>>> mikael.stal...@magine.com
>>> Grev Turegatan 3  | 114 46 Stockholm, Sweden  |   www.magine.com
>>>
>>> Privileged and/or Confidential Information may be contained in this
>>> message. If you are not the addressee indicated in this message
>>> (or responsible for delivery of the message to such a person), you may
>>> not copy or deliver this message to anyone. In such case,
>>> you should destroy this message and kindly notify the sender by reply
>>> email.
>>>
>>
>>
>>
>> --
>> E-Mail: garydgreg...@gmail.com | ggreg...@apache.org
>> Java Persistence with Hibernate, Second Edition
>> <http://www.manning.com/bauer3/>
>> JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
>> Spring Batch in Action <http://www.manning.com/templier/>
>> Blog: http://garygregory.wordpress.com
>> Home: http://garygregory.com/
>> Tweet! http://twitter.com/GaryGregory
>>
>
>
>
> --
> [image: MagineTV]
>
> *Mikael Ståldal*
> Senior software developer
>
> *Magine TV*
> mikael.stal...@magine.com
> Grev Turegatan 3  | 114 46 Stockholm, Sweden  |   www.magine.com
>
> Privileged and/or Confidential Information may be contained in this
> message. If you are not the addressee indicated in this message
> (or responsible for delivery of the message to such a person), you may not
> copy or deliver this message to anyone. In such case,
> you should destroy this message and kindly notify the sender by reply
> email.
>



-- 
E-Mail: garydgreg...@gmail.com | ggreg...@apache.org
Java Persistence with Hibernate, Second Edition
<http://www.manning.com/bauer3/>
JUnit in Action, Second Edition <http://www.manning.com/tahchiev/>
Spring Batch in Action <http://www.manning.com/templier/>
Blog: http://garygregory.wordpress.com
Home: http://garygregory.com/
Tweet! http://twitter.com/GaryGregory

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