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Posted to common-issues@hadoop.apache.org by "Martin A. Juell (Created) (JIRA)" <ji...@apache.org> on 2012/02/27 05:51:48 UTC
[jira] [Created] (HADOOP-8114) Init scripts in 1.0.0/1.0.1 .deb
distribution appear to rely on $USER in an unhealthy way - breaks status
functionality, inconsistency between manual and automatic service startups
Init scripts in 1.0.0/1.0.1 .deb distribution appear to rely on $USER in an unhealthy way - breaks status functionality, inconsistency between manual and automatic service startups
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Key: HADOOP-8114
URL: https://issues.apache.org/jira/browse/HADOOP-8114
Project: Hadoop Common
Issue Type: Bug
Affects Versions: 1.0.0, 1.0.1
Environment: Debian/Ubuntu
Reporter: Martin A. Juell
When I run hadoop using
{{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
When the namenode is automatically started at boot, the file is called
{{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
Either way, doing /etc/init.d/hadoop-namenode status always returns an error exit code.
I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
{{if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then}}
(Line 77 of /etc/init.d/hadoop-jobtracker from hadoop-1.0.1 , .deb version)
{{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}}
Assuming I've understood thsi correctly, my proposed solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
--
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[jira] [Updated] (HADOOP-8114) Init scripts in 1.0.0/1.0.1 .deb
distribution appear to rely on $USER in an unhealthy way - breaks status
functionality, inconsistency between manual and automatic service startups
Posted by "Martin A. Juell (Updated) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HADOOP-8114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Martin A. Juell updated HADOOP-8114:
------------------------------------
Description:
When I run hadoop using
{{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
When the namenode is automatically started at boot, the file is called
{{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
Either way, doing {{/etc/init.d/hadoop-namenode}} status always returns an error exit code.
I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
{code:title=/etc/init.d/hadoop-namenode:89|borderStyle=solid}
if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then
{code}
{{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}} , i.e. what we want.
Assuming I've understood this correctly, an easy solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
was:
When I run hadoop using
{{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
When the namenode is automatically started at boot, the file is called
{{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
Either way, doing /etc/init.d/hadoop-namenode status always returns an error exit code.
I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
{{if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then}}
(Line 77 of /etc/init.d/hadoop-jobtracker from hadoop-1.0.1 , .deb version)
{{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}} , i.e. what we want.
Assuming I've understood this correctly, an easy solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
> Init scripts in 1.0.0/1.0.1 .deb distribution appear to rely on $USER in an unhealthy way - breaks status functionality, inconsistency between manual and automatic service startups
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-8114
> URL: https://issues.apache.org/jira/browse/HADOOP-8114
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 1.0.0, 1.0.1
> Environment: Debian/Ubuntu
> Reporter: Martin A. Juell
>
> When I run hadoop using
> {{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
> it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
> When the namenode is automatically started at boot, the file is called
> {{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
> Either way, doing {{/etc/init.d/hadoop-namenode}} status always returns an error exit code.
> I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
> {code:title=/etc/init.d/hadoop-namenode:89|borderStyle=solid}
> if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then
> {code}
> {{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}} , i.e. what we want.
> Assuming I've understood this correctly, an easy solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
--
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[jira] [Updated] (HADOOP-8114) Init scripts in 1.0.0/1.0.1 .deb
distribution appear to rely on $USER in an unhealthy way - breaks status
functionality, inconsistency between manual and automatic service startups
Posted by "Martin A. Juell (Updated) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HADOOP-8114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Martin A. Juell updated HADOOP-8114:
------------------------------------
Description:
When I run hadoop using
{{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
When the namenode is automatically started at boot, the file is called
{{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
Either way, doing {{/etc/init.d/hadoop-namenode}} status always returns an error exit code.
I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
{code:title=/etc/init.d/hadoop-namenode:89|borderStyle=solid}
if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then
{code}
{{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}} , i.e. what we want.
Assuming I've understood this correctly, an easy solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
This applies to all init scripts, not just the namenode.
was:
When I run hadoop using
{{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
When the namenode is automatically started at boot, the file is called
{{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
Either way, doing {{/etc/init.d/hadoop-namenode}} status always returns an error exit code.
I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
{code:title=/etc/init.d/hadoop-namenode:89|borderStyle=solid}
if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then
{code}
{{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}} , i.e. what we want.
Assuming I've understood this correctly, an easy solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
Environment: Debian/Ubuntu Lucid (10.04) - Installed .deb package from mirror using dpkg. (was: Debian/Ubuntu)
> Init scripts in 1.0.0/1.0.1 .deb distribution appear to rely on $USER in an unhealthy way - breaks status functionality, inconsistency between manual and automatic service startups
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-8114
> URL: https://issues.apache.org/jira/browse/HADOOP-8114
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 1.0.0, 1.0.1
> Environment: Debian/Ubuntu Lucid (10.04) - Installed .deb package from mirror using dpkg.
> Reporter: Martin A. Juell
>
> When I run hadoop using
> {{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
> it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
> When the namenode is automatically started at boot, the file is called
> {{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
> Either way, doing {{/etc/init.d/hadoop-namenode}} status always returns an error exit code.
> I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
> {code:title=/etc/init.d/hadoop-namenode:89|borderStyle=solid}
> if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then
> {code}
> {{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}} , i.e. what we want.
> Assuming I've understood this correctly, an easy solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
> This applies to all init scripts, not just the namenode.
--
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[jira] [Updated] (HADOOP-8114) Init scripts in 1.0.0/1.0.1 .deb
distribution appear to rely on $USER in an unhealthy way - breaks status
functionality, inconsistency between manual and automatic service startups
Posted by "Martin A. Juell (Updated) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HADOOP-8114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Martin A. Juell updated HADOOP-8114:
------------------------------------
Environment: Ubuntu Lucid (10.04) - Installed .deb package from mirror using dpkg. (was: Debian/Ubuntu Lucid (10.04) - Installed .deb package from mirror using dpkg.)
> Init scripts in 1.0.0/1.0.1 .deb distribution appear to rely on $USER in an unhealthy way - breaks status functionality, inconsistency between manual and automatic service startups
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-8114
> URL: https://issues.apache.org/jira/browse/HADOOP-8114
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 1.0.0, 1.0.1
> Environment: Ubuntu Lucid (10.04) - Installed .deb package from mirror using dpkg.
> Reporter: Martin A. Juell
>
> When I run hadoop using
> {{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
> it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
> When the namenode is automatically started at boot, the file is called
> {{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
> Either way, doing {{/etc/init.d/hadoop-namenode}} status always returns an error exit code.
> I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
> {code:title=/etc/init.d/hadoop-namenode:89|borderStyle=solid}
> if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then
> {code}
> {{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}} , i.e. what we want.
> Assuming I've understood this correctly, an easy solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
> This applies to all init scripts, not just the namenode.
--
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If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
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[jira] [Updated] (HADOOP-8114) Init scripts in 1.0.0/1.0.1 .deb
distribution appear to rely on $USER in an unhealthy way - breaks status
functionality, inconsistency between manual and automatic service startups
Posted by "Martin A. Juell (Updated) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HADOOP-8114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Martin A. Juell updated HADOOP-8114:
------------------------------------
Description:
When I run hadoop using
{{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
When the namenode is automatically started at boot, the file is called
{{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
Either way, doing {{/etc/init.d/hadoop-namenode}} status always returns an error exit code.
I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
{code:title=/etc/init.d/hadoop-namenode:89|borderStyle=solid}
if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then
{code}
{{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}} , i.e. what we want.
Assuming I've understood this correctly, an easy solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
This applies to all init scripts, not just the namenode.
Error present in both 1.0.0 and 1.0.1, possibly earlier versions also.
was:
When I run hadoop using
{{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
When the namenode is automatically started at boot, the file is called
{{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
Either way, doing {{/etc/init.d/hadoop-namenode}} status always returns an error exit code.
I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
{code:title=/etc/init.d/hadoop-namenode:89|borderStyle=solid}
if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then
{code}
{{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}} , i.e. what we want.
Assuming I've understood this correctly, an easy solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
This applies to all init scripts, not just the namenode.
Environment: Ubuntu Lucid (10.04) - Installed .deb package from mirror using dpkg. (was: Ubuntu Lucid (10.04) - Installed .deb package from mirror using dpkg.)
> Init scripts in 1.0.0/1.0.1 .deb distribution appear to rely on $USER in an unhealthy way - breaks status functionality, inconsistency between manual and automatic service startups
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-8114
> URL: https://issues.apache.org/jira/browse/HADOOP-8114
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 1.0.0, 1.0.1
> Environment: Ubuntu Lucid (10.04) - Installed .deb package from mirror using dpkg.
> Reporter: Martin A. Juell
>
> When I run hadoop using
> {{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
> it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
> When the namenode is automatically started at boot, the file is called
> {{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
> Either way, doing {{/etc/init.d/hadoop-namenode}} status always returns an error exit code.
> I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
> {code:title=/etc/init.d/hadoop-namenode:89|borderStyle=solid}
> if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then
> {code}
> {{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}} , i.e. what we want.
> Assuming I've understood this correctly, an easy solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
> This applies to all init scripts, not just the namenode.
> Error present in both 1.0.0 and 1.0.1, possibly earlier versions also.
--
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[jira] [Updated] (HADOOP-8114) Init scripts in 1.0.0/1.0.1 .deb
distribution appear to rely on $USER in an unhealthy way - breaks status
functionality, inconsistency between manual and automatic service startups
Posted by "Martin A. Juell (Updated) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HADOOP-8114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Martin A. Juell updated HADOOP-8114:
------------------------------------
Description:
When I run hadoop using
{{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
When the namenode is automatically started at boot, the file is called
{{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
Either way, doing /etc/init.d/hadoop-namenode status always returns an error exit code.
I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
{{if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then}}
(Line 77 of /etc/init.d/hadoop-jobtracker from hadoop-1.0.1 , .deb version)
{{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}} , i.e. what we want.
Assuming I've understood this correctly, my proposed solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
was:
When I run hadoop using
{{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
When the namenode is automatically started at boot, the file is called
{{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
Either way, doing /etc/init.d/hadoop-namenode status always returns an error exit code.
I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
{{if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then}}
(Line 77 of /etc/init.d/hadoop-jobtracker from hadoop-1.0.1 , .deb version)
{{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}}
Assuming I've understood thsi correctly, my proposed solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
> Init scripts in 1.0.0/1.0.1 .deb distribution appear to rely on $USER in an unhealthy way - breaks status functionality, inconsistency between manual and automatic service startups
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-8114
> URL: https://issues.apache.org/jira/browse/HADOOP-8114
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 1.0.0, 1.0.1
> Environment: Debian/Ubuntu
> Reporter: Martin A. Juell
>
> When I run hadoop using
> {{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
> it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
> When the namenode is automatically started at boot, the file is called
> {{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
> Either way, doing /etc/init.d/hadoop-namenode status always returns an error exit code.
> I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
> {{if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then}}
> (Line 77 of /etc/init.d/hadoop-jobtracker from hadoop-1.0.1 , .deb version)
> {{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}} , i.e. what we want.
> Assuming I've understood this correctly, my proposed solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
--
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[jira] [Updated] (HADOOP-8114) Init scripts in 1.0.0/1.0.1 .deb
distribution appear to rely on $USER in an unhealthy way - breaks status
functionality, inconsistency between manual and automatic service startups
Posted by "Martin A. Juell (Updated) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HADOOP-8114?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Martin A. Juell updated HADOOP-8114:
------------------------------------
Description:
When I run hadoop using
{{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
When the namenode is automatically started at boot, the file is called
{{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
Either way, doing /etc/init.d/hadoop-namenode status always returns an error exit code.
I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
{{if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then}}
(Line 77 of /etc/init.d/hadoop-jobtracker from hadoop-1.0.1 , .deb version)
{{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}} , i.e. what we want.
Assuming I've understood this correctly, an easy solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
was:
When I run hadoop using
{{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
When the namenode is automatically started at boot, the file is called
{{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
Either way, doing /etc/init.d/hadoop-namenode status always returns an error exit code.
I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
{{if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then}}
(Line 77 of /etc/init.d/hadoop-jobtracker from hadoop-1.0.1 , .deb version)
{{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}} , i.e. what we want.
Assuming I've understood this correctly, my proposed solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
> Init scripts in 1.0.0/1.0.1 .deb distribution appear to rely on $USER in an unhealthy way - breaks status functionality, inconsistency between manual and automatic service startups
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-8114
> URL: https://issues.apache.org/jira/browse/HADOOP-8114
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 1.0.0, 1.0.1
> Environment: Debian/Ubuntu
> Reporter: Martin A. Juell
>
> When I run hadoop using
> {{$ sudo /etc/init.d/hadoop-namenode start}} (or whatever service),
> it creates pid file {{/var/run/hadoop/hadoop-root-namenode.pid}}.
> When the namenode is automatically started at boot, the file is called
> {{/var/run/hadoop/hadoop--namenode.pid}} , i.e. the user part is missing.
> Either way, doing /etc/init.d/hadoop-namenode status always returns an error exit code.
> I've snooped around a bit, and the cause seems to be that the name of the pid file to look for is hardcoded:
> {{if start-stop-daemon --stop --quiet --oknodo --pidfile ${HADOOP_PID_DIR}/hadoop-hdfs-namenode.pid; then}}
> (Line 77 of /etc/init.d/hadoop-jobtracker from hadoop-1.0.1 , .deb version)
> {{start-stop-daemon -c}} doesn't change the {{$USER}} variable, but it appears that it should be set. I tried prepending {{USER=hdfs}} to the above line, starting the namenode, and now the pid file was named {{/var/run/hadoop/hadoop-hdfs-namenode.pid}} , i.e. what we want.
> Assuming I've understood this correctly, an easy solution is to make the init scripts use a method of changing user where the {{$USER}} variable is also changed.
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