[
https://issues.apache.org/jira/browse/HDFS-17570?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
wuchang updated HDFS-17570:
---------------------------
Description:
h1. Description of PR
the {{-Dhadoop.root.logger}} will use the value of {{{}HADOOP_ROOT_LOGGER{}}}.
In most cases, hadoop administrator tends to setup {{HADOOP_ROOT_LOGGER}}
directly, it is effective in non-daemon mode and most hadoop administrator are
not even aware of the existence of {{{}HADOOP_DAEMON_ROOT_LOGGER{}}}.
So when he started up HADOOP as daemon mode, no matter how he set up
{{{}HADOOP_ROOT_LOGGER{}}}, the {{-Dhadoop.root.logger}} is not changed because
in Daemon mode, the {{HADOOP_ROOT_LOGGER}} is set up by
{{HADOOP_DAEMON_ROOT_LOGGER}} which is in fact a default value. The code is as
below:
if [[ "${HADOOP_DAEMON_MODE}" != "default" ]]; then
HADOOP_ROOT_LOGGER="${HADOOP_DAEMON_ROOT_LOGGER}"if [[
"${HADOOP_SUBCMD_SECURESERVICE}" = true ]]; then
HADOOP_LOGFILE="hadoop-${HADOOP_SECURE_USER}-${HADOOP_IDENT_STRING}-${HADOOP_SUBCMD}-${HOSTNAME}.log"else
HADOOP_LOGFILE="hadoop-${HADOOP_IDENT_STRING}-${HADOOP_SUBCMD}-${HOSTNAME}.log"fifi
This makes log setup and troubleshooting becomes very time consuming before we
finally figure out the reason and the best practice without reading the code.
h1. My change is:
In daemon mode
* If user has customize(changed) {{HADOOP_ROOT_LOGGER}} but no
{{{}HADOOP_DAEMON_ROOT_LOGGER{}}}, then we will respect {{HADOOP_ROOT_LOGGER}}
as the final {{-Dhadoop.root.logger}} value, instead of setting up
{{HADOOP_ROOT_LOGGER}} with the default {{HADOOP_DAEMON_ROOT_LOGGER}} and print
a warning.
* In other cases, we will use {{{}HADOOP_DAEMON_ROOT_LOGGER{}}}(no matter it
is default or customized), we will setup the {{HADOOP_ROOT_LOGGER}} with this
customized {{HADOOP_DAEMON_ROOT_LOGGER}}
h3. How was this patch tested?
||Testing Case||Expected Result||
|Customized {{HADOOP_LOGLEVEL}}|Respect {{HADOOP_LOGLEVEL}}|
|Without customizing anything|Respect default {{HADOOP_DAEMON_ROOT_LOGGER}} in
daemon mode|
|Customize the {{HADOOP_DAEMON_ROOT_LOGGER}} without customizing
{{HADOOP_ROOT_LOGGER}}|Respect customized {{HADOOP_DAEMON_ROOT_LOGGER}}|
|Customize the {{HADOOP_ROOT_LOGGER}} but not customize
{{HADOOP_DAEMON_ROOT_LOGGER}}|Respect customized {{HADOOP_ROOT_LOGGER}} with a
warning|
|Customize both {{HADOOP_ROOT_LOGGER}} and
{{HADOOP_DAEMON_ROOT_LOGGER}}|Respect customized {{HADOOP_DAEMON_ROOT_LOGGER}}|
# Customize the {{{}HADOOP_LOGLEVEL{}}}, should respect the
{{HADOOP_LOGLEVEL}} and {{HADOOP_DAEMON_ROOT_LOGGER}}
export HADOOP_LOGLEVEL=DEBUG
{code:java}
root@rccd101-6a:/home/hadoop/current-hadoop# ps -ef|grep NameNode
hadoop 2852464 1 45 04:04 pts/1 00:00:09
/usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dproc_namenode
-Djava.net.preferIPv4Stack=true -Dhdfs.audit.logger=INFO,NullAppender
-Dlog4j.configuration=file:/home/hadoop/current-hadoop/etc/hadoop/log4j-namenode.properties
-XX:+UseG1GC -Xmx4096m -Dcom.sun.management.jmxremote=true
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.port=1029 -Dhadoop.security.logger=ERROR,RFAS
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
-Dyarn.log.dir=/home/hadoop/hadoop-3.2.4/../logs
-Dyarn.log.file=test-host-name.dev.corp.com.log
-Dyarn.home.dir=/home/hadoop/hadoop-3.2.4 -Dyarn.root.logger=INFO,console
-Djava.library.path=/home/hadoop/hadoop-3.2.4/lib/native
-Dhadoop.log.dir=/home/hadoop/hadoop-3.2.4/../logs
-Dhadoop.log.file=test-host-name.dev.corp.com.log
-Dhadoop.home.dir=/home/hadoop/hadoop-3.2.4 -Dhadoop.id.str=hadoop
-Dhadoop.root.logger=DEBUG,RFA -Dhadoop.policy.file=hadoop-policy.xml
org.apache.hadoop.hdfs.server.namenode.NameNode{code}
{{ }}
# Without customizing anything, should respect default
{{HADOOP_DAEMON_ROOT_LOGGER}}
root@rccd101-6a:/home/hadoop/current-hadoop# ps -ef|grep NameNode
hadoop 2855220 1 43 04:05 pts/1 00:00:07
/usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dproc_namenode
-Djava.net.preferIPv4Stack=true -Dhdfs.audit.logger=INFO,NullAppender
-Dlog4j.configuration=file:/home/hadoop/current-hadoop/etc/hadoop/log4j-namenode.properties
-XX:+UseG1GC -Xmx4096m -Dcom.sun.management.jmxremote=true
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.port=1029 -Dhadoop.security.logger=ERROR,RFAS
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
-Dyarn.log.dir=/home/hadoop/hadoop-3.2.4/../logs
-Dyarn.log.file=test-host-name.dev.corp.com.log
-Dyarn.home.dir=/home/hadoop/hadoop-3.2.4 -Dyarn.root.logger=INFO,console
-Djava.library.path=/home/hadoop/hadoop-3.2.4/lib/native
-Dhadoop.log.dir=/home/hadoop/hadoop-3.2.4/../logs
-Dhadoop.log.file=test-host-name.dev.corp.com.log
-Dhadoop.home.dir=/home/hadoop/hadoop-3.2.4 -Dhadoop.id.str=hadoop
-Dhadoop.root.logger=INFO,RFA -Dhadoop.policy.file=hadoop-policy.xml
org.apache.hadoop.hdfs.server.namenode.NameNode
# Customize the {{HADOOP_DAEMON_ROOT_LOGGER}} without customizing
{{{}HADOOP_ROOT_LOGGER{}}}, should respect customized
{{HADOOP_DAEMON_ROOT_LOGGER}}
export HADOOP_DAEMON_ROOT_LOGGER=TRACE,RFA
root@rccd101-6a:/home/hadoop/current-hadoop# ps -ef|grep NameNode
hadoop 2857093 1 99 04:06 pts/1 00:00:07
/usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dproc_namenode
-Djava.net.preferIPv4Stack=true -Dhdfs.audit.logger=INFO,NullAppender
-Dlog4j.configuration=file:/home/hadoop/current-hadoop/etc/hadoop/log4j-namenode.properties
-XX:+UseG1GC -Xmx4096m -Dcom.sun.management.jmxremote=true
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.port=1029 -Dhadoop.security.logger=ERROR,RFAS
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
-Dyarn.log.dir=/home/hadoop/hadoop-3.2.4/../logs
-Dyarn.log.file=test-host-name.dev.corp.com.log
-Dyarn.home.dir=/home/hadoop/hadoop-3.2.4 -Dyarn.root.logger=INFO,console
-Djava.library.path=/home/hadoop/hadoop-3.2.4/lib/native
-Dhadoop.log.dir=/home/hadoop/hadoop-3.2.4/../logs
-Dhadoop.log.file=test-host-name.dev.corp.com.log
-Dhadoop.home.dir=/home/hadoop/hadoop-3.2.4 -Dhadoop.id.str=hadoop
-Dhadoop.root.logger=TRACE,RFA -Dhadoop.policy.file=hadoop-policy.xml
org.apache.hadoop.hdfs.server.namenode.NameNode
root 2857504 2745542 0 04:07 pts/1 00:00:00 grep --color=auto NameNode
# Customize the {{HADOOP_ROOT_LOGGER}} but not customize
{{{}HADOOP_DAEMON_ROOT_LOGGER{}}}, should respect customized
{{HADOOP_ROOT_LOGGER}} with a warning
export HADOOP_ROOT_LOGGER=TRACE,console
root@rccd101-6a:/home/hadoop/current-hadoop# sudo -u hadoop bin/hdfs --daemon
stop namenode;Using customized HADOOP_ROOT_LOGGER as final hadoop.root.logger.
Recommending using HADOOP_LOGLEVEL or customize HADOOP_DAEMON_ROOT_LOGGER for
logging in daemon mode.
root@rccd101-6a:/home/hadoop/current-hadoop# ps -ef|grep NameNode
hadoop 2874729 1 99 04:16 pts/1 00:00:07
/usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dproc_namenode
-Djava.net.preferIPv4Stack=true -Dhdfs.audit.logger=INFO,NullAppender
-Dlog4j.configuration=file:/home/hadoop/current-hadoop/etc/hadoop/log4j-namenode.properties
-XX:+UseG1GC -Xmx4096m -Dcom.sun.management.jmxremote=true
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.port=1029 -Dhadoop.security.logger=ERROR,RFAS
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
-Dyarn.log.dir=/home/hadoop/hadoop-3.2.4/../logs
-Dyarn.log.file=test-host-name.dev.corp.com.log
-Dyarn.home.dir=/home/hadoop/hadoop-3.2.4 -Dyarn.root.logger=INFO,console
-Djava.library.path=/home/hadoop/hadoop-3.2.4/lib/native
-Dhadoop.log.dir=/home/hadoop/hadoop-3.2.4/../logs
-Dhadoop.log.file=test-host-name.dev.corp.com.log
-Dhadoop.home.dir=/home/hadoop/hadoop-3.2.4 -Dhadoop.id.str=hadoop
-Dhadoop.root.logger=TRACE,console -Dhadoop.policy.file=hadoop-policy.xml
org.apache.hadoop.hdfs.server.namenode.NameNode
# Customize both {{HADOOP_ROOT_LOGGER}} and {{{}HADOOP_DAEMON_ROOT_LOGGER{}}},
should respect customized {{HADOOP_DAEMON_ROOT_LOGGER}}
export HADOOP_DAEMON_ROOT_LOGGER=TRACE,RFAexport
HADOOP_ROOT_LOGGER=TRACE,console
root@rccd101-6a:/home/hadoop/current-hadoop# ps -ef|grep NameNode
hadoop 2877521 1 61 04:18 pts/1 00:00:07
/usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dproc_namenode
-Djava.net.preferIPv4Stack=true -Dhdfs.audit.logger=INFO,NullAppender
-Dlog4j.configuration=file:/home/hadoop/current-hadoop/etc/hadoop/log4j-namenode.properties
-XX:+UseG1GC -Xmx4096m -Dcom.sun.management.jmxremote=true
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.port=1029 -Dhadoop.security.logger=ERROR,RFAS
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
-Dyarn.log.dir=/home/hadoop/hadoop-3.2.4/../logs
-Dyarn.log.file=test-host-name.dev.corp.com.log
-Dyarn.home.dir=/home/hadoop/hadoop-3.2.4 -Dyarn.root.logger=INFO,console
-Djava.library.path=/home/hadoop/hadoop-3.2.4/lib/native
-Dhadoop.log.dir=/home/hadoop/hadoop-3.2.4/../logs
-Dhadoop.log.file=test-host-name.dev.corp.com.log
-Dhadoop.home.dir=/home/hadoop/hadoop-3.2.4 -Dhadoop.id.str=hadoop
-Dhadoop.root.logger=TRACE,RFA -Dhadoop.policy.file=hadoop-policy.xml
org.apache.hadoop.hdfs.server.namenode.NameNode
h3. For code changes:
* Does the title or this PR starts with the corresponding JIRA issue id (e.g.
'HADOOP-17799. Your PR title ...')?
* Object storage: have the integration tests been executed and the endpoint
declared according to the connector-specific documentation?
* If adding new dependencies to the code, are these dependencies licensed in
a way that is compatible for inclusion under [ASF
2.0|http://www.apache.org/legal/resolved.html#category-a]?
* If applicable, have you updated the {{{}LICENSE{}}},
{{{}LICENSE-binary{}}}, {{NOTICE-binary}} files?
> Respect Non-Default HADOOP_ROOT_LOGGER when HADOOP_DAEMON_ROOT_LOGGER is not
> specified in Daemon mode
> -----------------------------------------------------------------------------------------------------
>
> Key: HDFS-17570
> URL: https://issues.apache.org/jira/browse/HDFS-17570
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: wuchang
> Priority: Major
> Labels: pull-request-available
>
> h1. Description of PR
> the {{-Dhadoop.root.logger}} will use the value of {{{}HADOOP_ROOT_LOGGER{}}}.
> In most cases, hadoop administrator tends to setup {{HADOOP_ROOT_LOGGER}}
> directly, it is effective in non-daemon mode and most hadoop administrator
> are not even aware of the existence of {{{}HADOOP_DAEMON_ROOT_LOGGER{}}}.
> So when he started up HADOOP as daemon mode, no matter how he set up
> {{{}HADOOP_ROOT_LOGGER{}}}, the {{-Dhadoop.root.logger}} is not changed
> because in Daemon mode, the {{HADOOP_ROOT_LOGGER}} is set up by
> {{HADOOP_DAEMON_ROOT_LOGGER}} which is in fact a default value. The code is
> as below:
>
> if [[ "${HADOOP_DAEMON_MODE}" != "default" ]]; then
> HADOOP_ROOT_LOGGER="${HADOOP_DAEMON_ROOT_LOGGER}"if [[
> "${HADOOP_SUBCMD_SECURESERVICE}" = true ]]; then
> HADOOP_LOGFILE="hadoop-${HADOOP_SECURE_USER}-${HADOOP_IDENT_STRING}-${HADOOP_SUBCMD}-${HOSTNAME}.log"else
>
> HADOOP_LOGFILE="hadoop-${HADOOP_IDENT_STRING}-${HADOOP_SUBCMD}-${HOSTNAME}.log"fifi
>
> This makes log setup and troubleshooting becomes very time consuming before
> we finally figure out the reason and the best practice without reading the
> code.
> h1. My change is:
> In daemon mode
> * If user has customize(changed) {{HADOOP_ROOT_LOGGER}} but no
> {{{}HADOOP_DAEMON_ROOT_LOGGER{}}}, then we will respect
> {{HADOOP_ROOT_LOGGER}} as the final {{-Dhadoop.root.logger}} value, instead
> of setting up {{HADOOP_ROOT_LOGGER}} with the default
> {{HADOOP_DAEMON_ROOT_LOGGER}} and print a warning.
> * In other cases, we will use {{{}HADOOP_DAEMON_ROOT_LOGGER{}}}(no matter it
> is default or customized), we will setup the {{HADOOP_ROOT_LOGGER}} with this
> customized {{HADOOP_DAEMON_ROOT_LOGGER}}
> h3. How was this patch tested?
> ||Testing Case||Expected Result||
> |Customized {{HADOOP_LOGLEVEL}}|Respect {{HADOOP_LOGLEVEL}}|
> |Without customizing anything|Respect default {{HADOOP_DAEMON_ROOT_LOGGER}}
> in daemon mode|
> |Customize the {{HADOOP_DAEMON_ROOT_LOGGER}} without customizing
> {{HADOOP_ROOT_LOGGER}}|Respect customized {{HADOOP_DAEMON_ROOT_LOGGER}}|
> |Customize the {{HADOOP_ROOT_LOGGER}} but not customize
> {{HADOOP_DAEMON_ROOT_LOGGER}}|Respect customized {{HADOOP_ROOT_LOGGER}} with
> a warning|
> |Customize both {{HADOOP_ROOT_LOGGER}} and
> {{HADOOP_DAEMON_ROOT_LOGGER}}|Respect customized
> {{HADOOP_DAEMON_ROOT_LOGGER}}|
> # Customize the {{{}HADOOP_LOGLEVEL{}}}, should respect the
> {{HADOOP_LOGLEVEL}} and {{HADOOP_DAEMON_ROOT_LOGGER}}
> export HADOOP_LOGLEVEL=DEBUG
>
> {code:java}
> root@rccd101-6a:/home/hadoop/current-hadoop# ps -ef|grep NameNode
> hadoop 2852464 1 45 04:04 pts/1 00:00:09
> /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dproc_namenode
> -Djava.net.preferIPv4Stack=true -Dhdfs.audit.logger=INFO,NullAppender
> -Dlog4j.configuration=file:/home/hadoop/current-hadoop/etc/hadoop/log4j-namenode.properties
> -XX:+UseG1GC -Xmx4096m -Dcom.sun.management.jmxremote=true
> -Dcom.sun.management.jmxremote.authenticate=false
> -Dcom.sun.management.jmxremote.ssl=false
> -Dcom.sun.management.jmxremote.port=1029 -Dhadoop.security.logger=ERROR,RFAS
> -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
> -Dyarn.log.dir=/home/hadoop/hadoop-3.2.4/../logs
> -Dyarn.log.file=test-host-name.dev.corp.com.log
> -Dyarn.home.dir=/home/hadoop/hadoop-3.2.4 -Dyarn.root.logger=INFO,console
> -Djava.library.path=/home/hadoop/hadoop-3.2.4/lib/native
> -Dhadoop.log.dir=/home/hadoop/hadoop-3.2.4/../logs
> -Dhadoop.log.file=test-host-name.dev.corp.com.log
> -Dhadoop.home.dir=/home/hadoop/hadoop-3.2.4 -Dhadoop.id.str=hadoop
> -Dhadoop.root.logger=DEBUG,RFA -Dhadoop.policy.file=hadoop-policy.xml
> org.apache.hadoop.hdfs.server.namenode.NameNode{code}
> {{ }}
>
> # Without customizing anything, should respect default
> {{HADOOP_DAEMON_ROOT_LOGGER}}
> root@rccd101-6a:/home/hadoop/current-hadoop# ps -ef|grep NameNode
> hadoop 2855220 1 43 04:05 pts/1 00:00:07
> /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dproc_namenode
> -Djava.net.preferIPv4Stack=true -Dhdfs.audit.logger=INFO,NullAppender
> -Dlog4j.configuration=file:/home/hadoop/current-hadoop/etc/hadoop/log4j-namenode.properties
> -XX:+UseG1GC -Xmx4096m -Dcom.sun.management.jmxremote=true
> -Dcom.sun.management.jmxremote.authenticate=false
> -Dcom.sun.management.jmxremote.ssl=false
> -Dcom.sun.management.jmxremote.port=1029 -Dhadoop.security.logger=ERROR,RFAS
> -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
> -Dyarn.log.dir=/home/hadoop/hadoop-3.2.4/../logs
> -Dyarn.log.file=test-host-name.dev.corp.com.log
> -Dyarn.home.dir=/home/hadoop/hadoop-3.2.4 -Dyarn.root.logger=INFO,console
> -Djava.library.path=/home/hadoop/hadoop-3.2.4/lib/native
> -Dhadoop.log.dir=/home/hadoop/hadoop-3.2.4/../logs
> -Dhadoop.log.file=test-host-name.dev.corp.com.log
> -Dhadoop.home.dir=/home/hadoop/hadoop-3.2.4 -Dhadoop.id.str=hadoop
> -Dhadoop.root.logger=INFO,RFA -Dhadoop.policy.file=hadoop-policy.xml
> org.apache.hadoop.hdfs.server.namenode.NameNode
>
> # Customize the {{HADOOP_DAEMON_ROOT_LOGGER}} without customizing
> {{{}HADOOP_ROOT_LOGGER{}}}, should respect customized
> {{HADOOP_DAEMON_ROOT_LOGGER}}
> export HADOOP_DAEMON_ROOT_LOGGER=TRACE,RFA
>
> root@rccd101-6a:/home/hadoop/current-hadoop# ps -ef|grep NameNode
> hadoop 2857093 1 99 04:06 pts/1 00:00:07
> /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dproc_namenode
> -Djava.net.preferIPv4Stack=true -Dhdfs.audit.logger=INFO,NullAppender
> -Dlog4j.configuration=file:/home/hadoop/current-hadoop/etc/hadoop/log4j-namenode.properties
> -XX:+UseG1GC -Xmx4096m -Dcom.sun.management.jmxremote=true
> -Dcom.sun.management.jmxremote.authenticate=false
> -Dcom.sun.management.jmxremote.ssl=false
> -Dcom.sun.management.jmxremote.port=1029 -Dhadoop.security.logger=ERROR,RFAS
> -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
> -Dyarn.log.dir=/home/hadoop/hadoop-3.2.4/../logs
> -Dyarn.log.file=test-host-name.dev.corp.com.log
> -Dyarn.home.dir=/home/hadoop/hadoop-3.2.4 -Dyarn.root.logger=INFO,console
> -Djava.library.path=/home/hadoop/hadoop-3.2.4/lib/native
> -Dhadoop.log.dir=/home/hadoop/hadoop-3.2.4/../logs
> -Dhadoop.log.file=test-host-name.dev.corp.com.log
> -Dhadoop.home.dir=/home/hadoop/hadoop-3.2.4 -Dhadoop.id.str=hadoop
> -Dhadoop.root.logger=TRACE,RFA -Dhadoop.policy.file=hadoop-policy.xml
> org.apache.hadoop.hdfs.server.namenode.NameNode
> root 2857504 2745542 0 04:07 pts/1 00:00:00 grep --color=auto
> NameNode
>
> # Customize the {{HADOOP_ROOT_LOGGER}} but not customize
> {{{}HADOOP_DAEMON_ROOT_LOGGER{}}}, should respect customized
> {{HADOOP_ROOT_LOGGER}} with a warning
> export HADOOP_ROOT_LOGGER=TRACE,console
>
> root@rccd101-6a:/home/hadoop/current-hadoop# sudo -u hadoop bin/hdfs --daemon
> stop namenode;Using customized HADOOP_ROOT_LOGGER as final
> hadoop.root.logger. Recommending using HADOOP_LOGLEVEL or customize
> HADOOP_DAEMON_ROOT_LOGGER for logging in daemon mode.
>
> root@rccd101-6a:/home/hadoop/current-hadoop# ps -ef|grep NameNode
> hadoop 2874729 1 99 04:16 pts/1 00:00:07
> /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dproc_namenode
> -Djava.net.preferIPv4Stack=true -Dhdfs.audit.logger=INFO,NullAppender
> -Dlog4j.configuration=file:/home/hadoop/current-hadoop/etc/hadoop/log4j-namenode.properties
> -XX:+UseG1GC -Xmx4096m -Dcom.sun.management.jmxremote=true
> -Dcom.sun.management.jmxremote.authenticate=false
> -Dcom.sun.management.jmxremote.ssl=false
> -Dcom.sun.management.jmxremote.port=1029 -Dhadoop.security.logger=ERROR,RFAS
> -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
> -Dyarn.log.dir=/home/hadoop/hadoop-3.2.4/../logs
> -Dyarn.log.file=test-host-name.dev.corp.com.log
> -Dyarn.home.dir=/home/hadoop/hadoop-3.2.4 -Dyarn.root.logger=INFO,console
> -Djava.library.path=/home/hadoop/hadoop-3.2.4/lib/native
> -Dhadoop.log.dir=/home/hadoop/hadoop-3.2.4/../logs
> -Dhadoop.log.file=test-host-name.dev.corp.com.log
> -Dhadoop.home.dir=/home/hadoop/hadoop-3.2.4 -Dhadoop.id.str=hadoop
> -Dhadoop.root.logger=TRACE,console -Dhadoop.policy.file=hadoop-policy.xml
> org.apache.hadoop.hdfs.server.namenode.NameNode
>
> # Customize both {{HADOOP_ROOT_LOGGER}} and
> {{{}HADOOP_DAEMON_ROOT_LOGGER{}}}, should respect customized
> {{HADOOP_DAEMON_ROOT_LOGGER}}
> export HADOOP_DAEMON_ROOT_LOGGER=TRACE,RFAexport
> HADOOP_ROOT_LOGGER=TRACE,console
>
> root@rccd101-6a:/home/hadoop/current-hadoop# ps -ef|grep NameNode
> hadoop 2877521 1 61 04:18 pts/1 00:00:07
> /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dproc_namenode
> -Djava.net.preferIPv4Stack=true -Dhdfs.audit.logger=INFO,NullAppender
> -Dlog4j.configuration=file:/home/hadoop/current-hadoop/etc/hadoop/log4j-namenode.properties
> -XX:+UseG1GC -Xmx4096m -Dcom.sun.management.jmxremote=true
> -Dcom.sun.management.jmxremote.authenticate=false
> -Dcom.sun.management.jmxremote.ssl=false
> -Dcom.sun.management.jmxremote.port=1029 -Dhadoop.security.logger=ERROR,RFAS
> -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:5005
> -Dyarn.log.dir=/home/hadoop/hadoop-3.2.4/../logs
> -Dyarn.log.file=test-host-name.dev.corp.com.log
> -Dyarn.home.dir=/home/hadoop/hadoop-3.2.4 -Dyarn.root.logger=INFO,console
> -Djava.library.path=/home/hadoop/hadoop-3.2.4/lib/native
> -Dhadoop.log.dir=/home/hadoop/hadoop-3.2.4/../logs
> -Dhadoop.log.file=test-host-name.dev.corp.com.log
> -Dhadoop.home.dir=/home/hadoop/hadoop-3.2.4 -Dhadoop.id.str=hadoop
> -Dhadoop.root.logger=TRACE,RFA -Dhadoop.policy.file=hadoop-policy.xml
> org.apache.hadoop.hdfs.server.namenode.NameNode
>
> h3. For code changes:
> * Does the title or this PR starts with the corresponding JIRA issue id
> (e.g. 'HADOOP-17799. Your PR title ...')?
> * Object storage: have the integration tests been executed and the endpoint
> declared according to the connector-specific documentation?
> * If adding new dependencies to the code, are these dependencies licensed
> in a way that is compatible for inclusion under [ASF
> 2.0|http://www.apache.org/legal/resolved.html#category-a]?
> * If applicable, have you updated the {{{}LICENSE{}}},
> {{{}LICENSE-binary{}}}, {{NOTICE-binary}} files?
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