Initial checkin of Kafka to Apache SVN. This corresponds to...

Initial checkin of Kafka to Apache SVN. This corresponds to https://github.com/kafka-dev/kafka/commit/709afe4ec75489bc00a44335de8821fa726bb97e except that git specific files have been removed and code has been put into trunk/branches/site/etc. This is just a copy of master, branches and history are not being converted since we can't find a good tool for it.



git-svn-id: https://svn.apache.org/repos/asf/incubator/kafka/trunk@1152970 13f79535-47bb-0310-9956-ffa450edef68

CONTRIBUTORS

+Jay Kreps
+Rui Wang
+Jun Rao
+Neha Narkhede
+Fatih Emekci
+Lin Guo
+Shirshanka Das
+Roshan Sumbaly
+Sam Shah
+Chris Burroughs
\ No newline at end of file

LICENSE

+
+                                 Apache License
+                           Version 2.0, January 2004
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+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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NOTICE

+Kafka
+
+This product includes software developed by the Apache Software Foundation (http://www.apache.org/).
+
+This product includes jopt-simple, a library for parsing command line options (http://jopt-simple.sourceforge.net/).
+
+This product includes junit, developed by junit.org.
+
+This product includes zkclient, developed by Stefan Groschupf, http://github.com/sgroschupf/zkclient
+
+This produce includes joda-time, developed by joda.org (joda-time.sourceforge.net)
+
+This product includes the scala runtime and compiler (www.scala-lang.org) developed by EPFL, which includes the following license:
+
+This product includes zookeeper, a Hadoop sub-project (http://hadoop.apache.org/zookeeper)
+
+This product includes log4j, an Apache project (http://logging.apache.org/log4j)
+
+This product includes easymock, developed by easymock.org (http://easymock.org)
+
+This product includes objenesis, developed by Joe Walnes, Henri Tremblay, Leonardo Mesquita (http://code.google.com/p/objenesis)
+
+This product includes cglib, developed by sourceforge.net (http://cglib.sourceforge.net)
+
+This product includes asm, developed by OW2 consortium (http://asm.ow2.org)
+-----------------------------------------------------------------------
+
+SCALA LICENSE
+
+Copyright (c) 2002-2010 EPFL, Lausanne, unless otherwise specified.
+All rights reserved.
+
+This software was developed by the Programming Methods Laboratory of the
+Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland.
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+or binary form for any purpose with or without fee is hereby granted,
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+
+-----------------------------------------------------------------------

README.md

+# Kafka is a distributed publish/subscribe messaging system #
+
+It is designed to support the following
+
+* Persistent messaging with O(1) disk structures that provide constant time performance even with many TB of stored messages.
+* High-throughput: even with very modest hardware Kafka can support hundreds of thousands of messages per second.
+* Explicit support for partitioning messages over Kafka servers and distributing consumption over a cluster of consumer machines while maintaining per-partition ordering semantics.
+* Support for parallel data load into Hadoop.
+
+Kafka is aimed at providing a publish-subscribe solution that can handle all activity stream data and processing on a consumer-scale web site. This kind of activity (page views, searches, and other user actions) are a key ingredient in many of the social feature on the modern web. This data is typically handled by "logging" and ad hoc log aggregation solutions due to the throughput requirements. This kind of ad hoc solution is a viable solution to providing logging data to an offline analysis system like Hadoop, but is very limiting for building real-time processing. Kafka aims to unify offline and online processing by providing a mechanism for parallel load into Hadoop as well as the ability to partition real-time consumption over a cluster of machines.
+
+See our [web site](http://sna-projects.com/kafka) for more details on the project.
+
+## Contribution ##
+
+Kafka is a new project, and we are interested in building the community; we would welcome any thoughts or patches. You can reach us [here](http://groups.google.com/group/kafka-dev). 
+
+To get kafka code:
+  git clone git@github.com:kafka-dev/kafka.git kafka
+
+To build: 
+
+1. ./sbt
+2. update - This downloads all the dependencies for all sub projects
+3. package - This will compile all sub projects and creates all the jars
+
+Here are some useful sbt commands, to be executed at the sbt command prompt (./sbt) -
+
+actions : Lists all the sbt commands and their descriptions
+
+clean : Deletes all generated files (the target directory).
+
+clean-cache : Deletes the cache of artifacts downloaded for automatically managed dependencies.
+
+clean-lib : Deletes the managed library directory.
+
+compile : Compile all the sub projects, but not create the jars
+
+test : Run all unit tests in all sub projects
+
+release-zip : Create all the jars, run unit tests and create a deployable release zip
+
+package-all: Creates jars for src, test, docs etc
+
+projects : List all the sub projects 
+
+project sub_project_name : Switch to a particular sub-project. For example, to switch to the core kafka code, use "project core-kafka"
+
+Following commands can be run only on a particular sub project -
+
+test-only package.test.TestName : Runs only the specified test in the current sub project
+
+run : Provides options to run any of the classes that have a main method. For example, you can switch to project java-examples, and run the examples there by executing "project java-examples" followed by "run" 
+
+

bin/kafka-console-consumer-log4j.properties

+log4j.rootLogger=INFO, stderr
+
+log4j.appender.stderr=org.apache.log4j.ConsoleAppender
+log4j.appender.stderr.target=System.err
+log4j.appender.stderr.layout=org.apache.log4j.PatternLayout
+log4j.appender.stderr.layout.ConversionPattern=[%d] %p %m (%c)%n
+

bin/kafka-console-consumer.sh

+#!/bin/bash
+
+base_dir=$(dirname $0)
+export KAFKA_OPTS="-Xmx512M -server -Dcom.sun.management.jmxremote -Dlog4j.configuration=file:$base_dir/kafka-console-consumer-log4j.properties"
+$base_dir/kafka-run-class.sh kafka.consumer.ConsoleConsumer $@

bin/kafka-consumer-perf-test.sh

+#!/bin/bash
+
+$(dirname $0)/kafka-run-class.sh kafka.tools.ConsumerPerformance $@

bin/kafka-consumer-shell.sh

+#!/bin/bash
+
+$(dirname $0)/kafka-run-class.sh kafka.tools.ConsumerShell $@

bin/kafka-producer-perf-test.sh

+#!/bin/bash
+
+$(dirname $0)/kafka-run-class.sh kafka.tools.ProducerPerformance $@

bin/kafka-producer-shell.sh

+#!/bin/bash
+
+$(dirname $0)/kafka-run-class.sh kafka.tools.ProducerShell $@

bin/kafka-replay-log-producer.sh

+#!/bin/bash
+
+base_dir=$(dirname $0)
+export KAFKA_OPTS="-Xmx512M -server -Dcom.sun.management.jmxremote -Dlog4j.configuration=file:$base_dir/../config/log4j.properties"
+$base_dir/kafka-run-class.sh kafka.tools.ReplayLogProducer $@

bin/kafka-run-class.sh

+#!/bin/bash
+
+if [ $# -lt 1 ];
+then
+  echo "USAGE: $0 classname [opts]"
+  exit 1
+fi
+
+base_dir=$(dirname $0)/..
+
+for file in $base_dir/project/boot/scala-2.8.0/lib/*.jar;
+do
+  CLASSPATH=$CLASSPATH:$file
+done
+
+for file in $base_dir/core/target/scala_2.8.0/*.jar;
+do
+  CLASSPATH=$CLASSPATH:$file
+done
+
+for file in $base_dir/core/lib/*.jar;
+do
+  CLASSPATH=$CLASSPATH:$file
+done
+
+for file in $base_dir/core/lib_managed/scala_2.8.0/compile/*.jar;
+do
+  if [ ${file##*/} != "sbt-launch.jar" ]; then
+    CLASSPATH=$CLASSPATH:$file
+  fi
+done
+if [ -z "$KAFKA_JMX_OPTS" ]; then
+  KAFKA_JMX_OPTS="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false  -Dcom.sun.management.jmxremote.ssl=false "
+fi
+if [ -z "$KAFKA_OPTS" ]; then
+  KAFKA_OPTS="-Xmx512M -server  -Dlog4j.configuration=file:$base_dir/config/log4j.properties"
+fi
+if [  $JMX_PORT ]; then
+  KAFKA_JMX_OPTS="$KAFKA_JMX_OPTS -Dcom.sun.management.jmxremote.port=$JMX_PORT "
+fi
+if [ -z "$JAVA_HOME" ]; then
+  JAVA="java"
+else
+  JAVA="$JAVA_HOME/bin/java"
+fi
+
+$JAVA $KAFKA_OPTS $KAFKA_JMX_OPTS -cp $CLASSPATH $@

bin/kafka-server-start.sh

+#!/bin/bash
+
+if [ $# -lt 1 ];
+then
+	echo "USAGE: $0 server.properties [consumer.properties]"
+	exit 1
+fi
+
+export JMX_PORT="9999"
+
+$(dirname $0)/kafka-run-class.sh kafka.Kafka $@

bin/kafka-server-stop.sh

+#!/bin/sh
+ps ax | grep -i 'kafka.Kafka' | grep -v grep | awk '{print $1}' | xargs kill -SIGINT

bin/kafka-simple-consumer-perf-test.sh

+#!/bin/bash
+
+$(dirname $0)/kafka-run-class.sh kafka.tools.SimpleConsumerPerformance $@

bin/kafka-simple-consumer-shell.sh

+#!/bin/bash
+
+$(dirname $0)/kafka-run-class.sh kafka.tools.SimpleConsumerShell $@

bin/zookeeper-server-start.sh

+#!/bin/bash
+
+if [ $# -ne 1 ];
+then
+	echo "USAGE: $0 zookeeper.properties"
+	exit 1
+fi
+
+$(dirname $0)/kafka-run-class.sh org.apache.zookeeper.server.quorum.QuorumPeerMain $@
\ No newline at end of file

bin/zookeeper-server-stop.sh

+#!/bin/sh
+ps ax | grep -i 'zookeeper' | grep -v grep | awk '{print $1}' | xargs kill -SIGINT

clients/clojure/.gitignore

+lib
+classes

clients/clojure/LICENSE

+
+                              Apache License
+                        Version 2.0, January 2004
+                     http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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+
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+   other entities that control, are controlled by, or are under common
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+   direction or management of such entity, whether by contract or
+   otherwise, or (ii) ownership of fifty percent (50%) or more of the
+   outstanding shares, or (iii) beneficial ownership of such entity.
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+   transformation or translation of a Source form, including but
+   not limited to compiled object code, generated documentation,
+   and conversions to other media types.
+
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+   "Derivative Works" shall mean any work, whether in Source or Object
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+   represent, as a whole, an original work of authorship. For the purposes
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+   "Contribution" shall mean any work of authorship, including
+   the original version of the Work and any modifications or additions
+   to that Work or Derivative Works thereof, that is intentionally
+   submitted to Licensor for inclusion in the Work by the copyright owner
+   or by an individual or Legal Entity authorized to submit on behalf of
+   the copyright owner. For the purposes of this definition, "submitted"
+   means any form of electronic, verbal, or written communication sent
+   to the Licensor or its representatives, including but not limited to
+   communication on electronic mailing lists, source code control systems,
+   and issue tracking systems that are managed by, or on behalf of, the
+   Licensor for the purpose of discussing and improving the Work, but
+   excluding communication that is conspicuously marked or otherwise
+   designated in writing by the copyright owner as "Not a Contribution."
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+   "Contributor" shall mean Licensor and any individual or Legal Entity
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+   this License, each Contributor hereby grants to You a perpetual,
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+   copyright license to reproduce, prepare Derivative Works of,
+   publicly display, publicly perform, sublicense, and distribute the
+   Work and such Derivative Works in Source or Object form.
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+   worldwide, non-exclusive, no-charge, royalty-free, irrevocable
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+   institute patent litigation against any entity (including a
+   cross-claim or counterclaim in a lawsuit) alleging that the Work
+   or a Contribution incorporated within the Work constitutes direct
+   or contributory patent infringement, then any patent licenses
+   granted to You under this License for that Work shall terminate
+   as of the date such litigation is filed.
+
+4. Redistribution. You may reproduce and distribute copies of the
+   Work or Derivative Works thereof in any medium, with or without
+   modifications, and in Source or Object form, provided that You
+   meet the following conditions:
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+       Derivative Works a copy of this License; and
+
+   (b) You must cause any modified files to carry prominent notices
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+   (c) You must retain, in the Source form of any Derivative Works
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+   (d) If the Work includes a "NOTICE" text file as part of its
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+       pertain to any part of the Derivative Works, in at least one
+       of the following places: within a NOTICE text file distributed
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