Flink（六） —— 配置文件详解

基础配置

#==============================================================================

# Common

#==============================================================================

# The external address of the host on which the JobManager runs and can be

# reached by the TaskManagers and any clients which want to connect. This setting

# is only used in Standalone mode and may be overwritten on the JobManager side

# by specifying the --host <hostname> parameter of the bin/jobmanager.sh executable.

# In high availability mode, if you use the bin/start-cluster.sh script and setup

# the conf/masters file, this will be taken care of automatically. Yarn/Mesos

# automatically configure the host name based on the hostname of the node where the

# JobManager runs.

# JobManager的IP地址

jobmanager.rpc.address: localhost

# The RPC port where the JobManager is reachable.

#JobManager的RPC端口号

jobmanager.rpc.port: 6123

# The heap size for the JobManager JVM

jobmanager.heap.size: 1024m

# The total process memory size for the TaskManager.

#

# Note this accounts for all memory usage within the TaskManager process, including JVM metaspace and other overhead.

taskmanager.memory.process.size: 1568m

# To exclude JVM metaspace and overhead, please, use total Flink memory size instead of 'taskmanager.memory.process.size'.

# It is not recommended to set both 'taskmanager.memory.process.size' and Flink memory.

#

# taskmanager.memory.flink.size: 1280m

# The number of task slots that each TaskManager offers. Each slot runs one parallel pipeline.

taskmanager.numberOfTaskSlots: 4

# The parallelism used for programs that did not specify and other parallelism.

parallelism.default: 1

# The default file system scheme and authority.

#

# By default file paths without scheme are interpreted relative to the local

# root file system 'file:///'. Use this to override the default and interpret

# relative paths relative to a different file system,

# for example 'hdfs://mynamenode:12345'

#

# fs.default-scheme

高可用部分



#==============================================================================

# High Availability

#==============================================================================

# The high-availability mode. Possible options are 'NONE' or 'zookeeper'.

#

# high-availability: zookeeper

# The path where metadata for master recovery is persisted. While ZooKeeper stores

# the small ground truth for checkpoint and leader election, this location stores

# the larger objects, like persisted dataflow graphs.

#

# Must be a durable file system that is accessible from all nodes

# (like HDFS, S3, Ceph, nfs, ...)

#

# high-availability.storageDir: hdfs:///flink/ha/

# The list of ZooKeeper quorum peers that coordinate the high-availability

# setup. This must be a list of the form:

# "host1:clientPort,host2:clientPort,..." (default clientPort: 2181)

#

# high-availability.zookeeper.quorum: localhost:2181

# ACL options are based on https://zookeeper.apache.org/doc/r3.1.2/zookeeperProgrammers.html#sc_BuiltinACLSchemes

# It can be either "creator" (ZOO_CREATE_ALL_ACL) or "open" (ZOO_OPEN_ACL_UNSAFE)

# The default value is "open" and it can be changed to "creator" if ZK security is enabled

#

# high-availability.zookeeper.client.acl: open

容错和检查点配置



#==============================================================================

# Fault tolerance and checkpointing

#==============================================================================

# The backend that will be used to store operator state checkpoints if

# checkpointing is enabled.

#

# Supported backends are 'jobmanager', 'filesystem', 'rocksdb', or the

# <class-name-of-factory>.

#

# state.backend: filesystem

# Directory for checkpoints filesystem, when using any of the default bundled

# state backends.

#

# state.checkpoints.dir: hdfs://namenode-host:port/flink-checkpoints

# Default target directory for savepoints, optional.

#

# state.savepoints.dir: hdfs://namenode-host:port/flink-checkpoints

# Flag to enable/disable incremental checkpoints for backends that

# support incremental checkpoints (like the RocksDB state backend).

#

# state.backend.incremental: false

# The failover strategy, i.e., how the job computation recovers from task failures.

# Only restart tasks that may have been affected by the task failure, which typically includes

# downstream tasks and potentially upstream tasks if their produced data is no longer available for consumption.

jobmanager.execution.failover-strategy: region

#==============================================================================

# Rest & web frontend

#==============================================================================

# The port to which the REST client connects to. If rest.bind-port has

# not been specified, then the server will bind to this port as well.

#

#rest.port: 8081

# The address to which the REST client will connect to

#

#rest.address: 0.0.0.0

# Port range for the REST and web server to bind to.

#

#rest.bind-port: 8080-8090

# The address that the REST & web server binds to

#

#rest.bind-address: 0.0.0.0

# Flag to specify whether job submission is enabled from the web-based

# runtime monitor. Uncomment to disable.

#web.submit.enable: false

#==============================================================================

# Advanced

#==============================================================================

# Override the directories for temporary files. If not specified, the

# system-specific Java temporary directory (java.io.tmpdir property) is taken.

#

# For framework setups on Yarn or Mesos, Flink will automatically pick up the

# containers' temp directories without any need for configuration.

#

# Add a delimited list for multiple directories, using the system directory

# delimiter (colon ':' on unix) or a comma, e.g.:

#     /data1/tmp:/data2/tmp:/data3/tmp

#

# Note: Each directory entry is read from and written to by a different I/O

# thread. You can include the same directory multiple times in order to create

# multiple I/O threads against that directory. This is for example relevant for

# high-throughput RAIDs.

#

# io.tmp.dirs: /tmp

# The classloading resolve order. Possible values are 'child-first' (Flink's default)

# and 'parent-first' (Java's default).

#

# Child first classloading allows users to use different dependency/library

# versions in their application than those in the classpath. Switching back

# to 'parent-first' may help with debugging dependency issues.

#

# classloader.resolve-order: child-first

# The amount of memory going to the network stack. These numbers usually need

# no tuning. Adjusting them may be necessary in case of an "Insufficient number

# of network buffers" error. The default min is 64MB, the default max is 1GB.

#

# taskmanager.memory.network.fraction: 0.1

# taskmanager.memory.network.min: 64mb

# taskmanager.memory.network.max: 1gb

Flink集群安全配置

#==============================================================================

# Flink Cluster Security Configuration

#==============================================================================

# Kerberos authentication for various components - Hadoop, ZooKeeper, and connectors -

# may be enabled in four steps:

# 1. configure the local krb5.conf file

# 2. provide Kerberos credentials (either a keytab or a ticket cache w/ kinit)

# 3. make the credentials available to various JAAS login contexts

# 4. configure the connector to use JAAS/SASL

# The below configure how Kerberos credentials are provided. A keytab will be used instead of

# a ticket cache if the keytab path and principal are set.

# security.kerberos.login.use-ticket-cache: true

# security.kerberos.login.keytab: /path/to/kerberos/keytab

# security.kerberos.login.principal: flink-user

# The configuration below defines which JAAS login contexts

# security.kerberos.login.contexts: Client,KafkaClient

Zookeeper安全配置

#==============================================================================

# ZK Security Configuration

#==============================================================================

# Below configurations are applicable if ZK ensemble is configured for security

# Override below configuration to provide custom ZK service name if configured

# zookeeper.sasl.service-name: zookeeper

# The configuration below must match one of the values set in "security.kerberos.login.contexts"

# zookeeper.sasl.login-context-name: Client

#==============================================================================

# HistoryServer

#==============================================================================

# The HistoryServer is started and stopped via bin/historyserver.sh (start|stop)

# Directory to upload completed jobs to. Add this directory to the list of

# monitored directories of the HistoryServer as well (see below).

#jobmanager.archive.fs.dir: hdfs:///completed-jobs/

# The address under which the web-based HistoryServer listens.

#historyserver.web.address: 0.0.0.0

# The port under which the web-based HistoryServer listens.

#historyserver.web.port: 8082

# Comma separated list of directories to monitor for completed jobs.

#historyserver.archive.fs.dir: hdfs:///completed-jobs/

# Interval in milliseconds for refreshing the monitored directories.

#historyserver.archive.fs.refresh-interval: 10000

巴特西

Flink（六） —— 配置文件详解

基础配置

高可用部分

容错和检查点配置

Flink集群安全配置

Zookeeper安全配置

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