Support Questions
Find answers, ask questions, and share your expertise

How can I check Ambari start services commands?

Solved Go to solution

How can I check Ambari start services commands?

Explorer

Hi,

following the still pending issue: https://community.hortonworks.com/questions/34749/cant-start-hiveserver2-beeline-error-error-could-n...

I would like to know how can I check what commands ambari running when its starting services through the GUI ? when I start the hive service manually: /usr/bin/hive --service hiveserver2 --hiveconf hive.root.logger=DEBUG,console it starts without any problems, but when i try to start via Ambari it fails (details in the link above).

I would like to know where can i find the Ambari run commands that starts the different services, specifically Hiveserver2 so i can run it manually and maybe then i can pinpoint the problem.

Thanks.

1 ACCEPTED SOLUTION

Accepted Solutions
Highlighted

Re: How can I check Ambari start services commands?

@Andrey Nikitin

Did you also looked inside /var/log/hive/hive-server2.out file after starting HS2 from Ambari? if nothing is there then lets try to restart the agent on that node once and start HS2 again.

View solution in original post

9 REPLIES 9
Highlighted

Re: How can I check Ambari start services commands?

Try starting/stoping services services from Ambari UI.

screen-shot-2016-05-24-at-73650-am.png

And then go to link to see the commands Ambari executes.

screen-shot-2016-05-24-at-73759-am.png

Highlighted

Re: How can I check Ambari start services commands?

@Andrey Nikitin

Did you also looked inside /var/log/hive/hive-server2.out file after starting HS2 from Ambari? if nothing is there then lets try to restart the agent on that node once and start HS2 again.

View solution in original post

Highlighted

Re: How can I check Ambari start services commands?

@Andrey Nikitin

Can you run below command and share the console output?

HIVE_CONF_DIR=/usr/hdp/current/hive-server2/conf/conf.server /usr/hdp/current/hive-server2/bin/hiveserver2 -hiveconf hive.metastore.uris=" " -hiveconf hive.root.logger=DEBUG,console

Highlighted

Re: How can I check Ambari start services commands?

Explorer

@Jitendra Yadav there is no output.. co console messages or anything. I checked /usr/hdp/current/hive-server2/bin/hiveserver2 content, its just setting different paths and jar files, i dont think its were the services is running from.

Highlighted

Re: How can I check Ambari start services commands?

@Andrey Nikitin

Well it is showing debug logs on my cluster, so something might be messed up while installating HS2.

HIVE_CONF_DIR=/usr/hdp/current/hive-server2/conf/conf.server /usr/hdp/current/hive-server2/bin/hiveserver2 -hiveconf hive.metastore.uris=" " -hiveconf hive.root.logger=DEBUG,console
WARNING: Use "yarn jar" to launch YARN applications.
16/05/24 04:39:12 [main]: DEBUG common.LogUtils: Using hive-site.xml found on CLASSPATH at /etc/hive/hdp/conf.server/hive-site.xml
16/05/24 04:39:12 [main]: DEBUG server.HiveServer2:
Logging initialized using configuration in file:/etc/hive/hdp/conf.server/hive-log4j.properties
16/05/24 04:39:12 [main]: INFO server.HiveServer2: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting HiveServer2
STARTUP_MSG:   host = ey.example.com/240.0.0.11
STARTUP_MSG:   args = [--hiveconf, hive.aux.jars.path=file:///usr/hdp/current/hive-webhcat/share/hcatalog/hive-hcatalog-core.jar, -hiveconf, hive.metastore.uris= , -hiveconf, hive.root.logger=DEBUG,console]
STARTUP_MSG:   version = 1.2.1000.2.4.2.0-258
......
....
6/05/24 04:39:12 [main]: INFO server.HiveServer2: Starting HiveServer2
16/05/24 04:39:12 [main]: DEBUG lib.MutableMetricsFactory: field org.apache.hadoop.metrics2.lib.MutableRate org.apache.hadoop.security.UserGroupInformation$UgiMetrics.loginSuccess with annotation @org.apache.hadoop.metrics2.annotation.Metric(value=[Rate of successful kerberos logins and latency (milliseconds)], about=, valueName=Time, type=DEFAULT, always=false, sampleName=Ops)
16/05/24 04:39:12 [main]: DEBUG lib.MutableMetricsFactory: field org.apache.hadoop.metrics2.lib.MutableRate org.apache.hadoop.security.UserGroupInformation$UgiMetrics.loginFailure with annotation @org.apache.hadoop.metrics2.annotation.Metric(value=[Rate of failed kerberos logins and latency (milliseconds)], about=, valueName=Time, type=DEFAULT, always=false, sampleName=Ops)
16/05/24 04:39:12 [main]: DEBUG lib.MutableMetricsFactory: field org.apache.hadoop.metrics2.lib.MutableRate org.apache.hadoop.security.UserGroupInformation$UgiMetrics.getGroups with annotation @org.apache.hadoop.metrics2.annotation.Metric(value=[GetGroups], about=, valueName=Time, type=DEFAULT, always=false, sampleName=Ops)
16/05/24 04:39:12 [main]: DEBUG impl.MetricsSystemImpl: UgiMetrics, User and group related metrics
16/05/24 04:39:12 [main]: DEBUG security.Groups:  Creating new Groups object
16/05/24 04:39:12 [main]: DEBUG util.NativeCodeLoader: Trying to load the custom-built native-hadoop library...
16/05/24 04:39:12 [main]: DEBUG util.NativeCodeLoader: Loaded the native-hadoop library
16/05/24 04:39:12 [main]: DEBUG security.JniBasedUnixGroupsMapping: Using JniBasedUnixGroupsMapping for Group resolution
16/05/24 04:39:12 [main]: DEBUG security.JniBasedUnixGroupsMappingWithFallback: Group mapping impl=org.apache.hadoop.security.JniBasedUnixGroupsMapping
16/05/24 04:39:12 [main]: DEBUG security.Groups: Group mapping impl=org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback; cacheTimeout=300000; warningDeltaMs=5000
16/05/24 04:39:12 [main]: DEBUG session.SessionState: SessionState user: null
16/05/24 04:39:12 [main]: DEBUG security.UserGroupInformation: hadoop login
16/05/24 04:39:12 [main]: DEBUG security.UserGroupInformation: hadoop login commit
16/05/24 04:39:12 [main]: DEBUG security.UserGroupInformation: using local user:UnixPrincipal: root
16/05/24 04:39:12 [main]: DEBUG security.UserGroupInformation: Using user: "UnixPrincipal: root" with name root
16/05/24 04:39:12 [main]: DEBUG security.UserGroupInformation: User entry: "root"
16/05/24 04:39:12 [main]: DEBUG security.UserGroupInformation: UGI loginUser:root (auth:SIMPLE)
Highlighted

Re: How can I check Ambari start services commands?

Explorer

@Jitendra Yadav

thanks to your example I went to recheck /usr/hdp/current/hive-server2/bin/hiveserver2 file. I cross checked it will a working staging environment I have, and what do you know... the following line in the end was missing: exec "${HIVE_HOME}/bin/hiveserver2.distro" "$@"

I modified the file with the missing line and now the service is starting without a problem.

Thanks again!!!

Highlighted

Re: How can I check Ambari start services commands?

Yeah..so /usr/hdp/current/hive-server2/bin/hiveserver2 was the culprit :). Do you know how that line got removed? ideally we don't change these files manually.

Highlighted

Re: How can I check Ambari start services commands?

Explorer

@Jitendra Yadav

yes, I've already looked there and restarted ambari-agent and even ambari-server.

I am checking for HiveServer2 logs (in /var/log/hive) but the problem is that the logs there are empty. for example the metastore logs are there and if I restart it the logs updates with information successfully.

I know for a fact that its the right log location because when I restart HiveServer2 through ambari, the timestamp on those logs updates and corresponds to the time I try to start the service in ambari but the logs still show up as empty and don't provide any information.

btw in the from the ambari-agent log:

INFO 2016-05-24 16:04:21,115 RecoveryManager.py:217 - HIVE_SERVER needs recovery.
INFO 2016-05-24 16:04:21,180 Controller.py:260 - Heartbeat response received (id = 9)
INFO 2016-05-24 16:04:21,181 RecoveryManager.py:217 - HIVE_SERVER needs recovery.
INFO 2016-05-24 16:04:31,183 Heartbeat.py:78 - Building Heartbeat: {responseId = 9, timestamp = 1464095071182, commandsInProgress = False, componentsMapped = True}
INFO 2016-05-24 16:04:31,189 Controller.py:260 - Heartbeat response received (id = 10)
INFO 2016-05-24 16:04:31,189 RecoveryManager.py:217 - HIVE_SERVER needs recovery

hope that explains my situation.

Highlighted

Re: How can I check Ambari start services commands?

Explorer
@Pardeep

perfect, thats exactly what i was looking for. while going over the log, the intresting bit is the follows:

016-05-24 16:05:43,261 - File['/etc/security/limits.d/hive.conf'] {'content': Template('hive.conf.j2'), 'owner': 'root', 'group': 'root', 'mode': 0644}
2016-05-24 16:05:43,261 - File['/usr/lib/ambari-agent/DBConnectionVerification.jar'] {'content': DownloadSource('http://HOSTNAME:8080/resources/DBConnectionVerification.jar'), 'mode': 0644}
2016-05-24 16:05:43,262 - Not downloading the file from http://HOSTNAME:8080/resources/DBConnectionVerification.jar, because /var/lib/ambari-agent/tmp/DBConnectionVerification.jar already exists
2016-05-24 16:05:43,263 - File['/var/lib/ambari-agent/tmp/start_hiveserver2_script'] {'content': Template('startHiveserver2.sh.j2'), 'mode': 0755}
2016-05-24 16:05:43,263 - Directory['/var/run/hive'] {'owner': 'hive', 'mode': 0755, 'group': 'hadoop', 'recursive': True, 'cd_access': 'a'}
2016-05-24 16:05:43,264 - Directory['/var/log/hive'] {'owner': 'hive', 'mode': 0755, 'group': 'hadoop', 'recursive': True, 'cd_access': 'a'}
2016-05-24 16:05:43,264 - Directory['/var/lib/hive'] {'owner': 'hive', 'mode': 0755, 'group': 'hadoop', 'recursive': True, 'cd_access': 'a'}
2016-05-24 16:05:43,264 - Ranger admin not installed
2016-05-24 16:05:43,265 - call['ambari-sudo.sh su hive -l -s /bin/bash -c 'hive --config /usr/hdp/current/hive-server2/conf/conf.server --service metatool -listFSRoot' 2>/dev/null | grep hdfs:// | cut -f1,2,3 -d '/' | grep -v 'hdfs://HOSTNAME:8020' | head -1'] {}
2016-05-24 16:05:47,240 - call returned (0, '')
2016-05-24 16:05:47,241 - Execute['/var/lib/ambari-agent/tmp/start_hiveserver2_script /var/log/hive/hive-server2.out /var/log/hive/hive-server2.log /var/run/hive/hive-server.pid /usr/hdp/current/hive-server2/conf/conf.server /var/log/hive'] {'environment': {'HIVE_BIN': 'hive', 'JAVA_HOME': '/usr/java/default', 'HADOOP_HOME': '/usr/hdp/current/hadoop-client'}, 'not_if': "ls /var/run/hive/hive-server.pid >/dev/null 2>&1 && ps -p `ambari-sudo.sh su hive -l -s /bin/bash -c 'cat /var/run/hive/hive-server.pid'` >/dev/null 2>&1", 'user': 'hive', 'path': ['/usr/sbin:/sbin:/usr/lib/ambari-server/*:/usr/sbin:/sbin:/usr/lib/ambari-server/*:/usr/lib64/qt-3.3/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin:/var/lib/ambari-agent:/var/lib/ambari-agent:/usr/hdp/current/hive-server2/bin:/usr/hdp/current/hadoop-client/bin']}
2016-05-24 16:05:47,372 - Execute['/usr/java/default/bin/java -cp /usr/lib/ambari-agent/DBConnectionVerification.jar:/usr/hdp/current/hive-server2/lib/mysql-connector-java.jar org.apache.ambari.server.DBConnectionVerification 'jdbc:mysql://HOSTNAME/hive?createDatabaseIfNotExist=true' hive [PROTECTED] com.mysql.jdbc.Driver'] {'path': ['/usr/sbin:/sbin:/usr/local/bin:/bin:/usr/bin'], 'tries': 5, 'try_sleep': 10}

but I dont have any errors, and when checking /var/lib/ambari-agent/tmp/start_hiveserver2_script, the content is: HIVE_SERVER2_OPTS=" -hiveconf hive.log.file=hiveserver2.log -hiveconf hive.log.dir=$5" HIVE_CONF_DIR=$4 /usr/hdp/current/hive-server2/bin/hiveserver2 -hiveconf hive.metastore.uris=" " ${HIVE_SERVER2_OPTS} > $1 2> $2 & echo $!|cat>$3

which translates to:

HIVE_SERVER2_OPTS=" -hiveconf hive.log.file=hiveserver2.log -hiveconf hive.log.dir=/var/log/hive"
HIVE_CONF_DIR=/usr/hdp/current/hive-server2/conf/conf.server /usr/hdp/current/hive-server2/bin/hiveserver2 -hiveconf hive.metastore.uris=" "  -hiveconf hive.log.file=hiveserver2.log -hiveconf hive.log.dir=/var/log/hive > /var/log/hive/hive-server2.out 2> /var/log/hive/hive-server2.log &
echo $!|cat>$3

I tried running it manually and nothing happens, but I still nowhere where its calling the actual service itself, something like /usr/bin/hive --service hiveserver2. what am I missing here?