I've run into a bug when upgrading the Ambari from 2.4 to 2.5. I followed all the recommended step until I got to upgrading the Ambari Server database schema using the "ambari-server upgrade" command which failed with the following error due to a known issue when the Lucidworks HDPSearch component is previously added to Ambari: $> ambari-server upgrade -v
Using python /usr/bin/python
Upgrading ambari-server
INFO: Loading properties from /etc/ambari-server/conf/ambari.properties
INFO: Upgrade Ambari Server
INFO: Updating Ambari Server properties in ambari.properties ...
WARNING: Can not find ambari.properties.rpmsave file from previous version, skipping import of settings
INFO: Updating Ambari Server properties in ambari-env.sh ...
INFO: Can not find ambari-env.sh.rpmsave file from previous version, skipping restore of environment settings. ambari-env.sh may not include any user customization.
INFO: Loading properties from /etc/ambari-server/conf/ambari.properties
INFO: Loading properties from /etc/ambari-server/conf/ambari.properties
INFO: ===========================================================================================
INFO: Executing Mpack Replay Log :
INFO: {'purge': False, 'mpack_command': 'install-mpack', 'mpack_path': '/var/lib/ambari-server/resources/mpacks/cache/solr-service-mpack-5.5.2.2.5.tar.gz', 'force': False, 'verbose': False}
INFO: ===========================================================================================
INFO: Installing management pack /var/lib/ambari-server/resources/mpacks/cache/solr-service-mpack-5.5.2.2.5.tar.gz
INFO: Loading properties from /etc/ambari-server/conf/ambari.properties
INFO: Download management pack to temp location /var/lib/ambari-server/data/tmp/solr-service-mpack-5.5.2.2.5.tar.gz
INFO: Loading properties from /etc/ambari-server/conf/ambari.properties
INFO: Expand management pack at temp location /var/lib/ambari-server/data/tmp/solr-service
INFO: Loading properties from /etc/ambari-server/conf/ambari.properties
INFO: Stage management pack solr-ambari-mpack-5.5.2.2.5 to staging location /var/lib/ambari-server/resources/mpacks/solr-ambari-mpack-5.5.2.2.5
INFO: Force removing previously installed management pack from /var/lib/ambari-server/resources/mpacks/solr-ambari-mpack-5.5.2.2.5
INFO: Processing artifact SOLR-common-services of type service-definitions in /var/lib/ambari-server/resources/mpacks/solr-ambari-mpack-5.5.2.2.5/common-services
INFO: Loading properties from /etc/ambari-server/conf/ambari.properties
Traceback (most recent call last):
File "/usr/sbin/ambari-server.py", line 941, in <module>
mainBody()
File "/usr/sbin/ambari-server.py", line 911, in mainBody
main(options, args, parser)
File "/usr/sbin/ambari-server.py", line 863, in main
action_obj.execute()
File "/usr/sbin/ambari-server.py", line 78, in execute
self.fn(*self.args, **self.kwargs)
File "/usr/lib/python2.6/site-packages/ambari_server/serverUpgrade.py", line 363, in upgrade
replay_mpack_logs()
File "/usr/lib/python2.6/site-packages/ambari_server/setupMpacks.py", line 983, in replay_mpack_logs
install_mpack(replay_options, replay_mode=True)
File "/usr/lib/python2.6/site-packages/ambari_server/setupMpacks.py", line 896, in install_mpack
(mpack_metadata, mpack_name, mpack_version, mpack_staging_dir, mpack_archive_path) = _install_mpack(options, replay_mode)
File "/usr/lib/python2.6/site-packages/ambari_server/setupMpacks.py", line 792, in _install_mpack
process_service_definitions_artifact(artifact, artifact_source_dir, options)
File "/usr/lib/python2.6/site-packages/ambari_server/setupMpacks.py", line 515, in process_service_definitions_artifact
create_symlink(src_service_definitions_dir, dest_service_definitions_dir, file, options.force)
File "/usr/lib/python2.6/site-packages/ambari_server/setupMpacks.py", line 235, in create_symlink
create_symlink_using_path(src_path, dest_link, force)
File "/usr/lib/python2.6/site-packages/ambari_server/setupMpacks.py", line 247, in create_symlink_using_path
sudo.symlink(src_path, dest_link)
File "/usr/lib/python2.6/site-packages/resource_management/core/sudo.py", line 123, in symlink
os.symlink(source, link_name)
OSError: [Errno 17] File exists
This issue is logged but the fix is only availble in the next release! : https://issues.apache.org/jira/browse/AMBARI-21263 Trying to rectify this, I uninstalled the Lucidworks HDPSearch from the cluster but that didn't help either. Now what should I do? How should I either resolve this upgrade issue or at least rollback to 2.4 without messing up ?
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