Tez

Update the Tez Java 17 flags as shown below.

Advanced tez-env -> tez-env

File location: Log into the Ambari UI → Tez → Configs → Advanced tez-site -> tez-env

# Tez specific configuration export TEZ_CONF_DIR={{config_dir}} {% if java_version == 8 %} # Java 8 JVM options export tez.am.launch.cmd-opts="-XX:+PrintGCDetails -verbose:gc -XX:+PrintGCTimeStamps -XX:+UseNUMA -XX:+UseG1GC -XX:+ResizeTLAB{{heap_dump_opts}}" export tez.task.launch.cmd-opts="-XX:+PrintGCDetails -verbose:gc -XX:+PrintGCTimeStamps -XX:+UseNUMA -XX:+UseG1GC -XX:+ResizeTLAB{{heap_dump_opts}}" {% else %} # Java 11 JVM options export tez.am.launch.cmd-opts="-Xlog:gc*:file={{gc_log_path}}/tez_am_gc.log:time,uptime,level,tags:filecount=10,filesize=10M -XX:+UseNUMA -XX:+UseG1GC -XX:+ResizeTLAB{{heap_dump_opts}}" export tez.task.launch.cmd-opts="-Xlog:gc*:file={{gc_log_path}}/tez_task_gc.log:time,uptime,level,tags:filecount=10,filesize=10M -XX:+UseNUMA -XX:+UseG1GC -XX:+ResizeTLAB{{heap_dump_opts}}" {% endif %} # Set HADOOP_HOME to point to a specific hadoop install directory export HADOOP_HOME=${HADOOP_HOME:-{{hadoop_home}}} # The java implementation to use. export JAVA_HOME={{java64_home}}

Update the custom Tez-site configurations as below:

tez.am.launch.cmd-opts=-XX:+PrintGCDetails -verbose:gc -XX:+UseNUMA -XX:+UseG1GC -XX:+ResizeTLAB{{heap_dump_opts}} tez.am.launch.env=-XX:+PrintGCDetails -verbose:gc -XX:+UseNUMA -XX:+UseG1GC -XX:+ResizeTLAB{{heap_dump_opts}} tez.task.launch.cmd-opts=-XX:+PrintGCDetails -verbose:gc -XX:+UseNUMA -XX:+UseG1GC -XX:+ResizeTLAB{{heap_dump_opts}}

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Last updated on Jan 28, 2026

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