Storm配置项详解

• 参考:
  • Storm配置项详解: http://www.alidata.org/archives/2118|Storm配置项详解
  • Setting up a Storm cluster: http://storm.apache.org/documentation/Setting-up-a-Storm-cluster.html
  • Troubleshooting: http://storm.apache.org/documentation/Troubleshooting.html

配置项详解

以下是从storm的backtype.storm.Config类中搜集的所有storm支持的配置项(Based storm 0.6.0):

配置项	配置说明
storm.zookeeper.servers	ZooKeeper服务器列表
storm.zookeeper.port	ZooKeeper连接端口
storm.zookeeper.root	ZooKeeper中Storm的根目录位置
storm.zookeeper.session.timeout	客户端连接ZooKeeper超时时间
storm.local.dir	storm使用的本地文件系统目录(必须存在并且storm进程可读写)
storm.cluster.mode	Storm集群运行模式([distributed,local])
storm.local.mode.zmq	Local模式下是否使用ZeroMQ作消息系统，如果设置为false则使用java消息系统。默认为false
storm.id	运行中拓扑的id,由storm name和一个唯一随机数组成。
nimbus.host	nimbus服务器地址
nimbus.thrift.port	nimbus的thrift监听端口
nimbus.childopts	通过storm-deploy项目部署时指定给nimbus进程的jvm选项
nimbus.task.timeout.secs	心跳超时时间，超时后nimbus会认为task死掉并重分配给另一个地址。
nimbus.monitor.freq.secs	nimbus检查心跳和重分配任务的时间间隔.注意如果是机器宕掉nimbus会立即接管并处理。
nimbus.supervisor.timeout.secs	supervisor的心跳超时时间,一旦超过nimbus会认为该supervisor已死并停止为它分发新任务.
nimbus.task.launch.secs	task启动时的一个特殊超时设置.在启动后第一次心跳前会使用该值来临时替代nimbus.task.timeout.secs.
nimbus.reassign	当发现task失败时nimbus是否重新分配执行。默认为真，不建议修改。
nimbus.file.copy.expiration.secs	nimbus判断上传/下载链接的超时时间，当空闲时间超过该设定时nimbus会认为链接死掉并主动断开
ui.port	Storm UI的服务端口
drpc.servers	DRPC服务器列表，以便DRPCSpout知道和谁通讯
drpc.port	Storm DRPC的服务端口
supervisor.slots.ports	supervisor上能够运行workers的端口列表.每个worker占用一个端口,且每个端口只运行一个worker.通过这项配置可以调整每台机器上运行的worker数.(调整slot数/每机)
supervisor.childopts	在storm-deploy项目中使用,用来配置supervisor守护进程的jvm选项
supervisor.worker.timeout.secs	supervisor中的worker心跳超时时间,一旦超时supervisor会尝试重启worker进程.
supervisor.worker.start.timeout.secs	supervisor初始启动时，worker的心跳超时时间，当超过该时间supervisor会尝试重启worker。因为JVM初始启动和配置会带来的额外消耗，从而使得第一次心跳会超过supervisor.worker.timeout.secs的设定
supervisor.enable	supervisor是否应当运行分配给他的workers.默认为true,该选项用来进行Storm的单元测试,一般不应修改.
supervisor.heartbeat.frequency.secs	supervisor心跳发送频率(多久发送一次)
supervisor.monitor.frequency.secs	supervisor检查worker心跳的频率
worker.childopts	supervisor启动worker时使用的jvm选项.所有的”%ID%”字串会被替换为对应worker的标识符
worker.heartbeat.frequency.secs	worker的心跳发送时间间隔
task.heartbeat.frequency.secs	task汇报状态心跳时间间隔
task.refresh.poll.secs	task与其他tasks之间链接同步的频率.(如果task被重分配,其他tasks向它发送消息需要刷新连接).一般来讲，重分配发生时其他tasks会理解得到通知。该配置仅仅为了防止未通知的情况。
topology.debug	如果设置成true，Storm将记录发射的每条信息。
topology.optimize	master是否在合适时机通过在单个线程内运行多个task以达到优化topologies的目的.
topology.workers	执行该topology集群中应当启动的进程数量.每个进程内部将以线程方式执行一定数目的tasks.topology的组件结合该参数和并行度提示来优化性能
topology.ackers	topology中启动的acker任务数.Acker保存由spout发送的tuples的记录，并探测tuple何时被完全处理.当Acker探测到tuple被处理完毕时会向spout发送确认信息.通常应当根据topology的吞吐量来确定acker的数目，但一般不需要太多.当设置为0时,相当于禁用了消息可靠性,storm会在spout发送tuples后立即进行确认.
topology.message.timeout.secs	topology中spout发送消息的最大处理超时时间.如果一条消息在该时间窗口内未被成功ack,Storm会告知spout这条消息失败。而部分spout实现了失败消息重播功能。
topology.kryo.register	注册到Kryo(Storm底层的序列化框架)的序列化方案列表.序列化方案可以是一个类名,或者是com.esotericsoftware.kryo.Serializer的实现.
topology.skip.missing.kryo.registrations	Storm是否应该跳过它不能识别的kryo序列化方案.如果设置为否task可能会装载失败或者在运行时抛出错误.
topology.max.task.parallelism	在一个topology中能够允许的最大组件并行度.该项配置主要用在本地模式中测试线程数限制.
topology.max.spout.pending	一个spout task中处于pending状态的最大的tuples数量.该配置应用于单个task,而不是整个spouts或topology.
topology.state.synchronization.timeout.secs	组件同步状态源的最大超时时间(保留选项,暂未使用)
topology.stats.sample.rate	用来产生task统计信息的tuples抽样百分比
topology.fall.back.on.java.serialization	topology中是否使用java的序列化方案
zmq.threads	每个worker进程内zeromq通讯用到的线程数
zmq.linger.millis	当连接关闭时,链接尝试重新发送消息到目标主机的持续时长.这是一个不常用的高级选项,基本上可以忽略.
java.library.path	JVM启动(如Nimbus,Supervisor和workers)时的java.library.path设置.该选项告诉JVM在哪些路径下定位本地库.

defaults.yaml

• https://github.com/apache/storm/blob/master/conf/defaults.yaml

  # Licensed to the Apache Software Foundation (ASF) under one
  # or more contributor license agreements.  See the NOTICE file
  # distributed with this work for additional information
  # regarding copyright ownership.  The ASF licenses this file
  # to you under the Apache License, Version 2.0 (the
  # "License"); you may not use this file except in compliance
  # with the License.  You may obtain a copy of the License at
  #
  # http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  
  ########### These all have default values as shown
  ########### Additional configuration goes into storm.yaml
  
  java.library.path: "/usr/local/lib:/opt/local/lib:/usr/lib"
  
  ### storm.* configs are general configurations
  # the local dir is where jars are kept
  storm. local . dir : "storm-local"
  storm.zookeeper.servers:
      - "localhost"
  storm.zookeeper.port: 2181
  storm.zookeeper.root: "/storm"
  storm.zookeeper.session.timeout: 20000
  storm.zookeeper.connection.timeout: 15000
  storm.zookeeper.retry. times : 5
  storm.zookeeper.retry.interval: 1000
  storm.zookeeper.retry.intervalceiling.millis: 30000
  storm.zookeeper.auth.user: null
  storm.zookeeper.auth.password: null
  storm.cluster.mode: "distributed" # can be distributed or local
  storm. local .mode.zmq: false
  storm.thrift.transport: "backtype.storm.security.auth.SimpleTransportPlugin"
  storm.principal.tolocal: "backtype.storm.security.auth.DefaultPrincipalToLocal"
  storm.group.mapping.service: "backtype.storm.security.auth.ShellBasedGroupsMapping"
  storm.messaging.transport: "backtype.storm.messaging.netty.Context"
  storm.nimbus.retry. times : 5
  storm.nimbus.retry.interval.millis: 2000
  storm.nimbus.retry.intervalceiling.millis: 60000
  storm.auth.simple-white-list. users : []
  storm.auth.simple-acl. users : []
  storm.auth.simple-acl. users .commands: []
  storm.auth.simple-acl.admins: []
  storm.meta.serialization.delegate: "backtype.storm.serialization.DefaultSerializationDelegate"
  
  ### nimbus.* configs are for the master
  nimbus.host: "localhost"
  nimbus.thrift.port: 6627
  nimbus.thrift.threads: 64
  nimbus.thrift.max_buffer_size: 1048576
  nimbus.childopts: "-Xmx1024m"
  nimbus.task.timeout.secs: 30
  nimbus.supervisor.timeout.secs: 60
  nimbus.monitor.freq.secs: 10
  nimbus.cleanup.inbox.freq.secs: 600
  nimbus.inbox.jar.expiration.secs: 3600
  nimbus.task.launch.secs: 120
  nimbus.reassign: true
  nimbus. file .copy.expiration.secs: 600
  nimbus.topology.validator: "backtype.storm.nimbus.DefaultTopologyValidator"
  nimbus.credential.renewers.freq.secs: 600
  
  ### ui.* configs are for the master
  ui.port: 8080
  ui.childopts: "-Xmx768m"
  ui.actions.enabled: true
  ui.filter: null
  ui.filter.params: null
  ui. users : null
  ui.header.buffer.bytes: 4096
  ui.http.creds.plugin: backtype.storm.security.auth.DefaultHttpCredentialsPlugin
  
  logviewer.port: 8000
  logviewer.childopts: "-Xmx128m"
  logviewer.cleanup.age.mins: 10080
  logviewer.appender.name: "A1"
  
  logs. users : null
  
  drpc.port: 3772
  drpc.worker.threads: 64
  drpc.max_buffer_size: 1048576
  drpc.queue.size: 128
  drpc.invocations.port: 3773
  drpc.invocations.threads: 64
  drpc.request.timeout.secs: 600
  drpc.childopts: "-Xmx768m"
  drpc.http.port: 3774
  drpc.https.port: -1
  drpc.https.keystore.password: ""
  drpc.https.keystore. type : "JKS"
  drpc.http.creds.plugin: backtype.storm.security.auth.DefaultHttpCredentialsPlugin
  drpc.authorizer.acl.filename: "drpc-auth-acl.yaml"
  drpc.authorizer.acl.strict: false
  
  transactional.zookeeper.root: "/transactional"
  transactional.zookeeper.servers: null
  transactional.zookeeper.port: null
  
  ### supervisor.* configs are for node supervisors
  # Define the amount of workers that can be run on this machine. Each worker is assigned a port to use for communication
  supervisor.slots.ports:
      - 6700
      - 6701
      - 6702
      - 6703
  supervisor.childopts: "-Xmx256m"
  supervisor.run.worker.as.user: false
  #how long supervisor will wait to ensure that a worker process is started
  supervisor.worker.start.timeout.secs: 120
  #how long between heartbeats until supervisor considers that worker dead and tries to restart it
  supervisor.worker.timeout.secs: 30
  #how frequently the supervisor checks on the status of the processes it's monitoring and restarts if necessary
  supervisor.monitor.frequency.secs: 3
  #how frequently the supervisor heartbeats to the cluster state (for nimbus)
  supervisor.heartbeat.frequency.secs: 5
  supervisor. enable : true
  supervisor.supervisors: []
  supervisor.supervisors.commands: []
  
  
  ### worker.* configs are for task workers
  worker.childopts: "-Xmx768m"
  worker.gc.childopts: ""
  worker.heartbeat.frequency.secs: 1
  
  # control how many worker receiver threads we need per worker
  topology.worker.receiver.thread.count: 1
  
  task.heartbeat.frequency.secs: 3
  task.refresh.poll.secs: 10
  task.credentials.poll.secs: 30
  
  zmq.threads: 1
  zmq.linger.millis: 5000
  zmq.hwm: 0
  
  
  storm.messaging.netty.server_worker_threads: 1
  storm.messaging.netty.client_worker_threads: 1
  storm.messaging.netty.buffer_size: 5242880 #5MB buffer
  # Since nimbus.task.launch.secs and supervisor.worker.start.timeout.secs are 120, other workers should also wait at least that long before giving up on connecting to the other worker.
  storm.messaging.netty.max_retries: 300
  storm.messaging.netty.max_wait_ms: 1000
  storm.messaging.netty.min_wait_ms: 100
  
  # If the Netty messaging layer is busy(netty internal buffer not writable), the Netty client will try to batch message as more as possible up to the size of storm.messaging.netty.transfer.batch.size bytes, otherwise it will try to flush message as soon as possible to reduce latency.
  storm.messaging.netty.transfer.batch.size: 262144
  
  # We check with this interval that whether the Netty channel is writable and try to write pending messages if it is.
  storm.messaging.netty.flush.check.interval.ms: 10
  
  # By default, the Netty SASL authentication is set to false.  Users can override and set it true for a specific topology.
  storm.messaging.netty.authentication: false
  
  # default number of seconds group mapping service will cache user group
  storm.group.mapping.service.cache.duration.secs: 120
  
  ### topology.* configs are for specific executing storms
  topology. enable .message.timeouts: true
  topology.debug: false
  topology.workers: 1
  topology.acker.executors: null
  topology.tasks: null
  # maximum amount of time a message has to complete before it's considered failed
  topology.message.timeout.secs: 30
  topology.multilang.serializer: "backtype.storm.multilang.JsonSerializer"
  topology.skip.missing.kryo.registrations: false
  topology.max.task.parallelism: null
  topology.max.spout.pending: null
  topology.state.synchronization.timeout.secs: 60
  topology.stats.sample.rate: 0.05
  topology. builtin .metrics.bucket.size.secs: 60
  topology.fall.back.on.java.serialization: true
  topology.worker.childopts: null
  topology.executor.receive.buffer.size: 1024 #batched
  topology.executor.send.buffer.size: 1024 #individual messages
  topology.receiver.buffer.size: 8 # setting it too high causes a lot of problems (heartbeat thread gets starved, throughput plummets)
  topology.transfer.buffer.size: 1024 # batched
  topology.tick.tuple.freq.secs: null
  topology.worker.shared.thread.pool.size: 4
  topology.disruptor.wait.strategy: "com.lmax.disruptor.BlockingWaitStrategy"
  topology.spout.wait.strategy: "backtype.storm.spout.SleepSpoutWaitStrategy"
  topology. sleep .spout.wait.strategy. time .ms: 1
  topology.error.throttle.interval.secs: 10
  topology.max.error.report.per.interval: 5
  topology.kryo.factory: "backtype.storm.serialization.DefaultKryoFactory"
  topology.tuple.serializer: "backtype.storm.serialization.types.ListDelegateSerializer"
  topology.trident.batch.emit.interval.millis: 500
  topology.testing.always.try.serialize: false
  topology.classpath: null
  topology.environment: null
  topology.bolts.outgoing.overflow.buffer. enable : false
  
  dev.zookeeper.path: "/tmp/dev-storm-zookeeper"