flink源码解读--1 命令行提交

1 提交自己打包的流job

./bin/flink run -c com.tclking.ai.PVUVDayMain -m yarn-cluster examples/batch/WordCount.jar

2 flink 脚本内容：

target="$0"

iteration=0

# 判断脚本名合法性

while [ -L "$target" ]; do

if [ "$iteration" -gt 100 ]; then

echo "Cannot resolve path: You have a cyclic symlink in $target."

break

ls=`ls -ld -- "$target"`

target=`expr "$ls" : '.* -> $.*$$'`

iteration=$((iteration + 1))

done

# 获取当前脚本的上一层路径

bin=`dirname "$target"`

# get flink config

. "$bin"/config.sh

if [ "$FLINK_IDENT_STRING" = "" ]; then

FLINK_IDENT_STRING="$USER"

CC_CLASSPATH=`constructFlinkClassPath`

log=$FLINK_LOG_DIR/flink-$FLINK_IDENT_STRING-client-$HOSTNAME.log

log_setting=(-Dlog.file="$log" -Dlog4j.configuration=file:"$FLINK_CONF_DIR"/log4j-cli.properties -Dlogback.configurationFile=file:"$FLINK_CONF_DIR"/logback.xml)

# Add HADOOP_CLASSPATH to allow the usage of Hadoop file systems

# 使用exec启用新进程，调用java方法org.apache.flink.client.cli.CliFrontend，这个类的main方法就是job提交的入口

exec $JAVA_RUN $JVM_ARGS "${log_setting[@]}" -classpath "`manglePathList "$CC_CLASSPATH:$INTERNAL_HADOOP_CLASSPATHS"`" org.apache.flink.client.cli.CliFrontend "$@"

//$@指代shell脚本后所有参数

上述命令替换变量后如下：

exec /opt/jdk1.8.0_211/bin/java

-Dlog.file=/opt/flink-1.9.0/log/flink-root-client-louisvv.log

-Dlog4j.configuration=file:/opt/flink-1.9.0/conf/log4j-cli.properties

-Dlogback.configurationFile=file:/opt/flink-1.9.0/conf/logback.xml

-classpath /opt/flink-1.9.0/lib/log4j-1.2.17.jar

:/opt/flink-1.9.0/lib/slf4j-log4j12-1.7.15.jar

:/opt/flink-1.9.0/lib/flink-dist_2.11-1.9.0.jar

org.apache.flink.client.cli.CliFrontend run -c com.tclking.ai.PVUVDayMain -m yarn-cluster examples/batch/WordCount.jar

来源：CSDN

作者：peidezhi

链接：https://blog.csdn.net/peidezhi/article/details/104058758

标签

flink

命令行

target

log