This has been tested on Ambari 2.6.2.0 and DLM 1.1.2.0
If there is broken symlink or unwanted directory under /var/lib/ambari-server/resources on Ambari Server, you get below error while installing mpack(management pack) for Beacon service.
[root@XXXXXX ~]# ambari-server install-mpack --mpack /root/beacon-ambari-mpack-1.1.2.0-37.tar.gz --verbose Using python /usr/bin/python Installing management pack INFO: Loading properties from /etc/ambari-server/conf/ambari.properties INFO: Installing management pack /root/beacon-ambari-mpack-1.1.2.0-37.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/beacon-ambari-mpack-1.1.2.0-37.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/beacon-ambari-mpack-1.1.2.0-37/ INFO: Loading properties from /etc/ambari-server/conf/ambari.properties INFO: Loading properties from /etc/ambari-server/conf/ambari.properties INFO: Stage management pack beacon-engine.mpack-1.1.0.0 to staging location /var/lib/ambari-server/resources/mpacks/beacon-engine.mpack-1.1.0.0 INFO: Processing artifact BEACON-common-services of type service-definitions in /var/lib/ambari-server/resources/mpacks/beacon-engine.mpack-1.1.0.0/common-services INFO: Loading properties from /etc/ambari-server/conf/ambari.properties INFO: Symlink: /var/lib/ambari-server/resources/common-services/BEACON/1.1.0 INFO: Processing artifact BEACON-addon-services of type stack-addon-service-definitions in /var/lib/ambari-server/resources/mpacks/beacon-engine.mpack-1.1.0.0/addon-services INFO: Loading properties from /etc/ambari-server/conf/ambari.properties Traceback (most recent call last): File "/usr/sbin/ambari-server.py", line 952, in <module> mainBody() File "/usr/sbin/ambari-server.py", line 922, in mainBody main(options, args, parser) File "/usr/sbin/ambari-server.py", line 874, in main action_obj.execute() File "/usr/sbin/ambari-server.py", line 78, in execute self.fn(*self.args, **self.kwargs) File "/usr/lib/ambari-server/lib/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/ambari-server/lib/ambari_server/setupMpacks.py", line 794, in _install_mpack process_stack_addon_service_definitions_artifact(artifact, artifact_source_dir, options) File "/usr/lib/ambari-server/lib/ambari_server/setupMpacks.py", line 554, in process_stack_addon_service_definitions_artifact sudo.symlink(source_service_version_path, dest_link) File "/usr/lib/ambari-server/lib/resource_management/core/sudo.py", line 124, in symlink os.symlink(source, link_name) OSError: [Errno 17] File exists
Please follow below steps to fix this:
1. Make sure that there is no backup directory under /var/lib/ambari-server/resources like common-services.backup or stacks.old etc. If exists, please move it some other location.
.
2. Delete or move below directories to other location
/var/lib/ambari-server/resources/common-services/BEACON /var/lib/ambari-server/resources/mpacks
.
3. Check if there is any broken symlink for BEACON under stacks directory. If exists, unlink it.unlink /var/lib/ambari-server/resources/stacks/HDP/2.6/services/BEACON
.
4 Reinstall mpack using command mentioned in the Hortonworks docs.
e.g.
ambari-server install-mpack --mpack /root/beacon-ambari-mpack-1.1.2.0-37.tar.gz --verbose
.
Please comment if you have any feedback/questions/suggestions. Happy Hadooping!!
