General Troubleshooting
Wiki Markup |
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Ambari Server: Check /var/log/ambari-server/ambari-server.\[log\|out\] for errors.
Ambari Agent: Check /var/log/ambari-agent/ambari-agent.\[log\|out\] for errors.
Note that if Ambari Agent has any output in /var/log/ambari-agent/ambari-agent.out, it is indicative of a significant problem. |
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Services
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fail
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to
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start
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up
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- HDFS:
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- Check
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- log
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- files
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- under
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- /var/log/hadoop/hdfs
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- MapReduce:
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- Check
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- log
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- files
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- under
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- /var/log/hadoop/mapred
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- HBase:
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- Check
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- log
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- files
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- under
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- /var/log/hbase
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- Hive:
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- Check
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- log
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- files
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- under
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- /var/log/hive
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- Oozie:
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- Check
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- log
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- files
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- under
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- /var/log/oozie
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- ZooKeeper:
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- Check
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- log
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- files
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- under
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- /var/log/zookeeper
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- WebHCat:
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- Check
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- log
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- files
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- under
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- /var/log/webhcat
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- Nagios:
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- Check
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- log
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- files
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- under
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- /var/log/nagios
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Nagios
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alerts
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don't
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show
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up
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in
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Ambari
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Web
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- Try
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- running
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- "service
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- httpd
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- restart"
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- on
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- the
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- Nagios
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- Server
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- host.
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Install
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Wizard
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fails
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during
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Install
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phase
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- Click
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- on
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- the
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- Retry
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- button.
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- In
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- most
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- cases,
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- this
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- will
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- solve
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- install
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- failures
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- due
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- to
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- package
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- install
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- problems
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- due
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- to
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- intermittent
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- software
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- repository
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- availability
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- (i.e.,
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- "No
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- more
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- mirrors
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- to
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- retry").
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Install
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Wizard
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failed
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with
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warning
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during
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Start/Test
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phase
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- Proceed
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- by
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- hitting
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- "Next".
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- Once
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- you
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- are
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- in
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- the
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- Dashboard,
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- go
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- to
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- individual
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- services,
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- reconfigure,
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- and
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- start
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- them
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- to
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- resolve
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- any
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- startup
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- issues.
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Installing
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a
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new
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cluster
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on
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top
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of
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an
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existing
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cluster
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When
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installing
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a
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Hadoop
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cluster
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via
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Ambari
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on
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hosts
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that
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already
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have
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Hadoop
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bits
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installed
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(including
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an
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existing
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cluster
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deployed
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via
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Ambari),
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perform
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the
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following:
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- Stop
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- all
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- the
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- services
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- on
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- all
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- the
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- nodes(including
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- ganglia
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- and
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- nagios)
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- It
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- is
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- also
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- a
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- good
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- practice
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- to
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- delete
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- the
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- rpms
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- from
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- all
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- nodes.
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- search
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- for
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- the
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- rpms:
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rpm
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- -qa
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- |
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- grep
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- ganglia
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rpm
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- -qa
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- |
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- grep
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- oozie
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rpm
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- -qa
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- |
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- grep
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- sqoop
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rpm
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- -qa
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- |
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- grep
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- pig
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rpm
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- -qa
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- |
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- grep
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- nagios
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rpm
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- -qa
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- |
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- grep
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- hadoop
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- and
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- remove
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- them
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- :
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rpm
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- -e
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- <package
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- name>
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Anchor Spaces in manager DN/Base
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DN
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causing
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login
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issues
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in
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Ambari
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Spaces
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in
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manager
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DN/Base
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DN
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causing
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login
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issues
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in
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Ambari
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Note
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that
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there
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are
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some
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issues
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with
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Ambari
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current
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release
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1.2.5
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in
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case
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you
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have
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spaces
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in
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baseDN/managerDN.
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Please
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take
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a
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look
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at:
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https://issues.apache.org/jira/browse/ambari-3006.
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The
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fix
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will
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be
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available
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in
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1.4.1
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release
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of
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Ambari.
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In
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case
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you
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are
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running
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into
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issues
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and
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cant
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get
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rid
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of
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spaces
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in
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the
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managerDN/baseDN
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-
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keep
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reading.
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I
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have
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created
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a
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jar
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with
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the
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patch
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applied
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on
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top
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of
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branch-1.2.5.
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The
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jar
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is
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posted
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at
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http://people.apache.org/~mahadev/ambari/ambari-server-1.2.5.17.jar.
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Download
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the
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above
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jar
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and
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follow
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the
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following
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steps
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for
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fixing
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the
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issue:
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- Stop
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- ambari
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- server
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- using
Code Block |
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} ambari-server stop {code} * Replace the ambari server jar with the downloaded jar {code} |
- Replace the ambari server jar with the downloaded jar
Code Block |
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cp <download_ambari_server_jar> /usr/lib/ambari-server/ambari-server-1.2.5.17.jar
{code |
- Restart Ambari Server
Code Block |
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} * Restart Ambari Server {code} ambari-server start {code} |
This
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should
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fix
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the
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issue
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with
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spaces
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in
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LDAP
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dn
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names.