kafka源码编译导入intellij idea
分类：教程
阅读kafka源码，把源码编译导入intellij idea中启动调试是最方便不过了，因为kafka依赖zookeeper，另外编译是用gradle，core模块是用scala语言编写，应团队小伙伴的要求就写了一个文档指引……
前期环境准备
kafka源码阅读版本，这里我选择了一个常用的版本：
- kafka下载地址：0.10.x
下载kafka-0.10.0.1：https://kafka.apache.org/downloads
- Scala 2.10.6
https://www.scala-lang.org/download/2.10.6.html
- Grade 3.1
https://gradle.org/install/
- zookeeper 3.4.9
https://archive.apache.org/dist/zookeeper/
以上scala、gradle、zookeeper的安装步骤这里就不详细说了
kafka源码本地构建
1、解压kafka安装目录，然后进入安装目录，执行gradle idea
构建成功截图如下：
在构建时候可能会有错误：
需要打开工程中的build.gradle文件然后添加如下配置：
ScalaCompileOptions.metaClass.daemonServer = true
ScalaCompileOptions.metaClass.fork = true
ScalaCompileOptions.metaClass.useAnt = false
ScalaCompileOptions.metaClass.useCompileDaemon = false
2、导入intellij idea
导入之前安装插件
在ide插件市场搜索Scala安装，然后重启ide
把构建好的kafka源码导入intellij idea，然后本地自动编译，出现如下截图即为成功！
- 把config模块下的log4j.properties复制一份到core模块下src/main/scala目录下
注意：Log4j.properties中日志路径中占位符要配置成绝对路径，否则会报错
- 修改config模块中server.properties中
- 设置启动配置
- 启动
下面是启动成功的日志：
12:26:50: Executing ':core:Kafka.main()'...
Starting Gradle Daemon...
Gradle Daemon started in 778 ms
Building project 'core' with Scala version 2.10.6
:clients:compileJava UP-TO-DATE
:clients:processResources UP-TO-DATE
:clients:classes UP-TO-DATE
:clients:determineCommitId UP-TO-DATE
:clients:createVersionFile
:clients:jar UP-TO-DATE
:core:compileJava UP-TO-DATE
:core:compileScala UP-TO-DATE
:core:processResources
:core:classes
:core:Kafka.main()
[2022-12-10 12:26:56,736] INFO KafkaConfig values:
advertised.host.name = null
metric.reporters = []
quota.producer.default = 9223372036854775807
offsets.topic.num.partitions = 50
log.flush.interval.messages = 9223372036854775807
auto.create.topics.enable = true
controller.socket.timeout.ms = 30000
log.flush.interval.ms = null
principal.builder.class = class org.apache.kafka.common.security.auth.DefaultPrincipalBuilder
replica.socket.receive.buffer.bytes = 65536
min.insync.replicas = 1
replica.fetch.wait.max.ms = 500
num.recovery.threads.per.data.dir = 1
ssl.keystore.type = JKS
sasl.mechanism.inter.broker.protocol = GSSAPI
default.replication.factor = 1
ssl.truststore.password = null
log.preallocate = false
sasl.kerberos.principal.to.local.rules = [DEFAULT]
fetch.purgatory.purge.interval.requests = 1000
ssl.endpoint.identification.algorithm = null
replica.socket.timeout.ms = 30000
message.max.bytes = 1000012
num.io.threads = 8
offsets.commit.required.acks = -1
log.flush.offset.checkpoint.interval.ms = 60000
delete.topic.enable = false
quota.window.size.seconds = 1
ssl.truststore.type = JKS
offsets.commit.timeout.ms = 5000
quota.window.num = 11
zookeeper.connect = localhost:2181
authorizer.class.name =
num.replica.fetchers = 1
log.retention.ms = null
log.roll.jitter.hours = 0
log.cleaner.enable = true
offsets.load.buffer.size = 5242880
log.cleaner.delete.retention.ms = 86400000
ssl.client.auth = none
controlled.shutdown.max.retries = 3
queued.max.requests = 500
offsets.topic.replication.factor = 3
log.cleaner.threads = 1
sasl.kerberos.service.name = null
sasl.kerberos.ticket.renew.jitter = 0.05
socket.request.max.bytes = 104857600
ssl.trustmanager.algorithm = PKIX
zookeeper.session.timeout.ms = 6000
log.retention.bytes = -1
log.message.timestamp.type = CreateTime
sasl.kerberos.min.time.before.relogin = 60000
zookeeper.set.acl = false
connections.max.idle.ms = 600000
offsets.retention.minutes = 1440
replica.fetch.backoff.ms = 1000
inter.broker.protocol.version = 0.10.0-IV1
log.retention.hours = 168
num.partitions = 1
broker.id.generation.enable = true
listeners = null
ssl.provider = null
ssl.enabled.protocols = [TLSv1.2, TLSv1.1, TLSv1]
log.roll.ms = null
log.flush.scheduler.interval.ms = 9223372036854775807
ssl.cipher.suites = null
log.index.size.max.bytes = 10485760
ssl.keymanager.algorithm = SunX509
security.inter.broker.protocol = PLAINTEXT
replica.fetch.max.bytes = 1048576
advertised.port = null
log.cleaner.dedupe.buffer.size = 134217728
replica.high.watermark.checkpoint.interval.ms = 5000
log.cleaner.io.buffer.size = 524288
sasl.kerberos.ticket.renew.window.factor = 0.8
zookeeper.connection.timeout.ms = 60000
controlled.shutdown.retry.backoff.ms = 5000
log.roll.hours = 168
log.cleanup.policy = delete
host.name =
log.roll.jitter.ms = null
max.connections.per.ip = 2147483647
offsets.topic.segment.bytes = 104857600
background.threads = 10
quota.consumer.default = 9223372036854775807
request.timeout.ms = 30000
log.message.format.version = 0.10.0-IV1
log.index.interval.bytes = 4096
log.dir = /tmp/kafka-logs
log.segment.bytes = 1073741824
log.cleaner.backoff.ms = 15000
offset.metadata.max.bytes = 4096
ssl.truststore.location = null
group.max.session.timeout.ms = 300000
ssl.keystore.password = null
zookeeper.sync.time.ms = 2000
port = 9092
log.retention.minutes = null
log.segment.delete.delay.ms = 60000
log.dirs = /Users/shuangfan/source-code/development/kafka-log
controlled.shutdown.enable = true
compression.type = producer
max.connections.per.ip.overrides =
log.message.timestamp.difference.max.ms = 9223372036854775807
sasl.kerberos.kinit.cmd = /usr/bin/kinit
log.cleaner.io.max.bytes.per.second = 1.7976931348623157E308
auto.leader.rebalance.enable = true
leader.imbalance.check.interval.seconds = 300
log.cleaner.min.cleanable.ratio = 0.5
replica.lag.time.max.ms = 10000
num.network.threads = 3
ssl.key.password = null
reserved.broker.max.id = 1000
metrics.num.samples = 2
socket.send.buffer.bytes = 102400
ssl.protocol = TLS
socket.receive.buffer.bytes = 102400
ssl.keystore.location = null
replica.fetch.min.bytes = 1
broker.rack = null
unclean.leader.election.enable = true
sasl.enabled.mechanisms = [GSSAPI]
group.min.session.timeout.ms = 6000
log.cleaner.io.buffer.load.factor = 0.9
offsets.retention.check.interval.ms = 600000
producer.purgatory.purge.interval.requests = 1000
metrics.sample.window.ms = 30000
broker.id = 0
offsets.topic.compression.codec = 0
log.retention.check.interval.ms = 300000
advertised.listeners = null
leader.imbalance.per.broker.percentage = 10
(kafka.server.KafkaConfig)
[2022-12-10 12:26:56,811] INFO starting (kafka.server.KafkaServer)
[2022-12-10 12:26:56,819] INFO Connecting to zookeeper on localhost:2181 (kafka.server.KafkaServer)
[2022-12-10 12:26:56,830] INFO Starting ZkClient event thread. (org.I0Itec.zkclient.ZkEventThread)
[2022-12-10 12:26:57,009] INFO Client environment:zookeeper.version=3.4.6-1569965, built on 02/20/2014 09:09 GMT (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,009] INFO Client environment:host.name=localhost (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,009] INFO Client environment:java.version=1.8.0_271 (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,009] INFO Client environment:java.vendor=Oracle Corporation (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,009] INFO Client environment:java.home=/Library/Java/JavaVirtualMachines/jdk1.8.0_271.jdk/Contents/Home/jre (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,009] INFO Client environment:java.class.path=/Users/shuangfan/source-code/kafka-0.10.0.1-src/core/build/classes/main:/Users/shuangfan/source-code/kafka-0.10.0.1-src/core/build/resources/main:/Users/shuangfan/source-code/kafka-0.10.0.1-src/clients/build/libs/kafka-clients-0.10.0.1.jar:/Users/shuangfan/opt/gradle/gradle-3.1/caches/modules-2/files-2.1/net.sf.jopt-simple/jopt-simple/4.9/ee9e9eaa0a35360dcfeac129ff4923215fd65904/jopt-simple-4.9.jar:/Users/shuangfan/opt/gradle/gradle-3.1/caches/modules-2/files-2.1/com.yammer.metrics/metrics-core/2.2.0/f82c035cfa786d3cbec362c38c22a5f5b1bc8724/metrics-core-2.2.0.jar:/Users/shuangfan/opt/gradle/gradle-3.1/caches/modules-2/files-2.1/org.scala-lang/scala-library/2.10.6/421989aa8f95a05a4f894630aad96b8c7b828732/scala-library-2.10.6.jar:/Users/shuangfan/opt/gradle/gradle-3.1/caches/modules-2/files-2.1/org.slf4j/slf4j-log4j12/1.7.21/7238b064d1aba20da2ac03217d700d91e02460fa/slf4j-log4j12-1.7.21.jar:/Users/shuangfan/opt/gradle/gradle-3.1/caches/modules-2/files-2.1/com.101tec/zkclient/0.8/c0f700a4a3b386279d7d8dd164edecbe836cbfdb/zkclient-0.8.jar:/Users/shuangfan/opt/gradle/gradle-3.1/caches/modules-2/files-2.1/org.apache.zookeeper/zookeeper/3.4.6/1b2502e29da1ebaade2357cd1de35a855fa3755/zookeeper-3.4.6.jar:/Users/shuangfan/opt/gradle/gradle-3.1/caches/modules-2/files-2.1/net.jpountz.lz4/lz4/1.3.0/c708bb2590c0652a642236ef45d9f99ff842a2ce/lz4-1.3.0.jar:/Users/shuangfan/opt/gradle/gradle-3.1/caches/modules-2/files-2.1/org.xerial.snappy/snappy-java/1.1.2.6/48d92871ca286a47f230feb375f0bbffa83b85f6/snappy-java-1.1.2.6.jar:/Users/shuangfan/opt/gradle/gradle-3.1/caches/modules-2/files-2.1/org.slf4j/slf4j-api/1.7.21/139535a69a4239db087de9bab0bee568bf8e0b70/slf4j-api-1.7.21.jar:/Users/shuangfan/opt/gradle/gradle-3.1/caches/modules-2/files-2.1/log4j/log4j/1.2.17/5af35056b4d257e4b64b9e8069c0746e8b08629f/log4j-1.2.17.jar (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,009] INFO Client environment:java.library.path=/Users/shuangfan/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:. (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,009] INFO Client environment:java.io.tmpdir=/var/folders/wq/k5zn0k617bn81djpplx7m0hc0000gn/T/ (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,009] INFO Client environment:java.compiler=<NA> (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,009] INFO Client environment:os.name=Mac OS X (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,009] INFO Client environment:os.arch=x86_64 (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,009] INFO Client environment:os.version=10.16 (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,009] INFO Client environment:user.name=shuangfan (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,009] INFO Client environment:user.home=/Users/shuangfan (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,009] INFO Client environment:user.dir=/Users/shuangfan/source-code/kafka-0.10.0.1-src (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,010] INFO Initiating client connection, connectString=localhost:2181 sessionTimeout=6000 watcher=org.I0Itec.zkclient.ZkClient@2b546384 (org.apache.zookeeper.ZooKeeper)
[2022-12-10 12:26:57,026] INFO Waiting for keeper state SyncConnected (org.I0Itec.zkclient.ZkClient)
[2022-12-10 12:26:57,028] INFO Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error) (org.apache.zookeeper.ClientCnxn)
[2022-12-10 12:26:57,039] INFO Socket connection established to localhost/127.0.0.1:2181, initiating session (org.apache.zookeeper.ClientCnxn)
[2022-12-10 12:26:57,046] INFO Session establishment complete on server localhost/127.0.0.1:2181, sessionid = 0x184f9bf015a0008, negotiated timeout = 6000 (org.apache.zookeeper.ClientCnxn)
[2022-12-10 12:26:57,047] INFO zookeeper state changed (SyncConnected) (org.I0Itec.zkclient.ZkClient)
[2022-12-10 12:26:57,105] INFO Loading logs. (kafka.log.LogManager)
[2022-12-10 12:26:57,114] INFO Logs loading complete. (kafka.log.LogManager)
[2022-12-10 12:26:57,226] INFO Starting log cleanup with a period of 300000 ms. (kafka.log.LogManager)
[2022-12-10 12:26:57,230] INFO Starting log flusher with a default period of 9223372036854775807 ms. (kafka.log.LogManager)
[2022-12-10 12:26:57,235] WARN No meta.properties file under dir /Users/shuangfan/source-code/development/kafka-log/meta.properties (kafka.server.BrokerMetadataCheckpoint)
[2022-12-10 12:26:57,284] INFO Awaiting socket connections on 0.0.0.0:9092. (kafka.network.Acceptor)
[2022-12-10 12:26:57,289] INFO [Socket Server on Broker 0], Started 1 acceptor threads (kafka.network.SocketServer)
[2022-12-10 12:26:57,323] INFO [ExpirationReaper-0], Starting (kafka.server.DelayedOperationPurgatory$ExpiredOperationReaper)
[2022-12-10 12:26:57,325] INFO [ExpirationReaper-0], Starting (kafka.server.DelayedOperationPurgatory$ExpiredOperationReaper)
[2022-12-10 12:26:57,400] INFO Creating /controller (is it secure? false) (kafka.utils.ZKCheckedEphemeral)
[2022-12-10 12:26:57,408] INFO Result of znode creation is: OK (kafka.utils.ZKCheckedEphemeral)
[2022-12-10 12:26:57,409] INFO 0 successfully elected as leader (kafka.server.ZookeeperLeaderElector)
[2022-12-10 12:26:57,485] INFO [ExpirationReaper-0], Starting (kafka.server.DelayedOperationPurgatory$ExpiredOperationReaper)
[2022-12-10 12:26:57,487] INFO [ExpirationReaper-0], Starting (kafka.server.DelayedOperationPurgatory$ExpiredOperationReaper)
[2022-12-10 12:26:57,513] INFO [GroupCoordinator 0]: Starting up. (kafka.coordinator.GroupCoordinator)
[2022-12-10 12:26:57,514] INFO [GroupCoordinator 0]: Startup complete. (kafka.coordinator.GroupCoordinator)
[2022-12-10 12:26:57,517] INFO [Group Metadata Manager on Broker 0]: Removed 0 expired offsets in 20 milliseconds. (kafka.coordinator.GroupMetadataManager)
[2022-12-10 12:26:57,535] INFO [ThrottledRequestReaper-Produce], Starting (kafka.server.ClientQuotaManager$ThrottledRequestReaper)
[2022-12-10 12:26:57,536] INFO [ThrottledRequestReaper-Fetch], Starting (kafka.server.ClientQuotaManager$ThrottledRequestReaper)
[2022-12-10 12:26:57,543] INFO Will not load MX4J, mx4j-tools.jar is not in the classpath (kafka.utils.Mx4jLoader$)
[2022-12-10 12:26:57,553] INFO New leader is 0 (kafka.server.ZookeeperLeaderElector$LeaderChangeListener)
[2022-12-10 12:26:57,565] INFO Creating /brokers/ids/0 (is it secure? false) (kafka.utils.ZKCheckedEphemeral)
[2022-12-10 12:26:57,569] INFO Result of znode creation is: OK (kafka.utils.ZKCheckedEphemeral)
[2022-12-10 12:26:57,570] INFO Registered broker 0 at path /brokers/ids/0 with addresses: PLAINTEXT -> EndPoint(localhost,9092,PLAINTEXT) (kafka.utils.ZkUtils)
[2022-12-10 12:26:57,571] WARN No meta.properties file under dir /Users/shuangfan/source-code/development/kafka-log/meta.properties (kafka.server.BrokerMetadataCheckpoint)
[2022-12-10 12:26:57,582] INFO Kafka version : 0.10.0.1 (org.apache.kafka.common.utils.AppInfoParser)
[2022-12-10 12:26:57,582] INFO Kafka commitId : unknown (org.apache.kafka.common.utils.AppInfoParser)
[2022-12-10 12:26:57,583] INFO [Kafka Server 0], started (kafka.server.KafkaServer)