Hello all !   This is my first time in Hadoop / Cloudera world 🙂   I installed Cent OS 6.5 in VM-Ware (in top of Windows 7), and installed Cloudera Manager 5. I configured SSH with private key for Linux user "cloudera", and launched installation using url http://localhost:7180   But during installation on one single node (same as CM host), i have this error :   Installation failed. Failed to receive heartbeat from agent. Ensure that the host's hostname is configured properly. Ensure that port 7182 is accessible on the Cloudera Manager Server (check firewall rules). Ensure that ports 9000 and 9001 are free on the host being added. Check agent logs in /var/log/cloudera-scm-agent/ on the host being added (some of the logs can be found in the installation details).  I tried to disable firewall as a test, but same thing. As hostname, i tried localhost and my IP adress (192.168.241.132), but same thing...   Here are the logs from /var/log/cloudera-scm-agent/ :   [11/Apr/2014 04:24:19 +0000] 4550 MainThread tmpfs INFO Reusing mounted tmpfs at /var/run/cloudera-scm-agent/process [11/Apr/2014 04:24:20 +0000] 4550 MainThread agent INFO Trying to connect to newly launched supervisor (Attempt 1) [11/Apr/2014 04:24:20 +0000] 4550 MainThread agent INFO Successfully connected to supervisor [11/Apr/2014 04:24:20 +0000] 4550 MainThread _cplogging INFO [11/Apr/2014:04:24:20] ENGINE Bus STARTING [11/Apr/2014 04:24:20 +0000] 4550 MainThread _cplogging INFO [11/Apr/2014:04:24:20] ENGINE Started monitor thread '_TimeoutMonitor'. [11/Apr/2014 04:24:21 +0000] 4550 MainThread _cplogging INFO [11/Apr/2014:04:24:21] ENGINE Serving on localhost.localdomain:9000 [11/Apr/2014 04:24:21 +0000] 4550 MainThread _cplogging INFO [11/Apr/2014:04:24:21] ENGINE Bus STARTED [11/Apr/2014 04:24:21 +0000] 4550 MainThread __init__ INFO New monitor: (<cmf.monitor.host.HostMonitor object at 0x234de10>,) [11/Apr/2014 04:24:21 +0000] 4550 MonitorDaemon-Scheduler __init__ INFO Monitor ready to report: ('HostMonitor',) [11/Apr/2014 04:24:21 +0000] 4550 MainThread agent WARNING Setting default socket timeout to 30! [11/Apr/2014 04:24:21 +0000] 4550 MainThread agent INFO Using parcels directory from server provided value: /opt/cloudera/parcels [11/Apr/2014 04:24:21 +0000] 4550 MainThread parcel INFO Agent does create users/groups and apply file permissions [11/Apr/2014 04:24:21 +0000] 4550 MainThread downloader INFO Downloader path: /opt/cloudera/parcel-cache [11/Apr/2014 04:24:21 +0000] 4550 MainThread parcel_cache INFO Using /opt/cloudera/parcel-cache for parcel cache [11/Apr/2014 04:24:21 +0000] 4550 MainThread agent INFO Active parcel list updated; recalculating component info. [11/Apr/2014 04:24:26 +0000] 4550 Monitor-HostMonitor throttling_logger INFO Using java location: '/usr/java/jdk1.7.0_45-cloudera/bin/java'. [11/Apr/2014 04:24:26 +0000] 4550 Monitor-HostMonitor throttling_logger WARNING hostname localhost.localdomain differs from the canonical name localhost [11/Apr/2014 04:39:58 +0000] 4550 MainThread agent INFO Stopping agent... [11/Apr/2014 04:39:58 +0000] 4550 MainThread agent INFO No extant cgroups; unmounting any cgroup roots [11/Apr/2014 04:39:58 +0000] 4550 MainThread agent INFO No processes are being managed; Supervisor will shutdown. [11/Apr/2014 04:39:58 +0000] 4550 MainThread agent INFO Shutting down supervisord, pid 4574 [11/Apr/2014 04:39:59 +0000] 4550 MainThread agent INFO waiting for process to terminate... [11/Apr/2014 04:39:59 +0000] 4550 MainThread agent INFO Successfully killed process with pid 4574 [11/Apr/2014 04:39:59 +0000] 4550 MainThread _cplogging INFO [11/Apr/2014:04:39:59] ENGINE Bus STOPPING [11/Apr/2014 04:39:59 +0000] 4550 MainThread _cplogging INFO [11/Apr/2014:04:39:59] ENGINE HTTP Server cherrypy._cpwsgi_server.CPWSGIServer(('localhost.localdomain', 9000)) shut down [11/Apr/2014 04:39:59 +0000] 4550 MainThread _cplogging INFO [11/Apr/2014:04:39:59] ENGINE Stopped thread '_TimeoutMonitor'. [11/Apr/2014 04:39:59 +0000] 4550 MainThread _cplogging INFO [11/Apr/2014:04:39:59] ENGINE Bus STOPPED [11/Apr/2014 04:39:59 +0000] 4550 MainThread _cplogging INFO [11/Apr/2014:04:39:59] ENGINE Bus STOPPING [11/Apr/2014 04:39:59 +0000] 4550 MainThread _cplogging INFO [11/Apr/2014:04:39:59] ENGINE HTTP Server cherrypy._cpwsgi_server.CPWSGIServer(('localhost.localdomain', 9000)) already shut down [11/Apr/2014 04:39:59 +0000] 4550 MainThread _cplogging INFO [11/Apr/2014:04:39:59] ENGINE No thread running for None. [11/Apr/2014 04:39:59 +0000] 4550 MainThread _cplogging INFO [11/Apr/2014:04:39:59] ENGINE Bus STOPPED [11/Apr/2014 04:39:59 +0000] 4550 MainThread _cplogging INFO [11/Apr/2014:04:39:59] ENGINE Bus EXITING [11/Apr/2014 04:39:59 +0000] 4550 MainThread _cplogging INFO [11/Apr/2014:04:39:59] ENGINE Bus EXITED [11/Apr/2014 04:39:59 +0000] 4550 MainThread agent INFO Agent exiting; caught signal 15 [11/Apr/2014 04:40:00 +0000] 8020 MainThread agent INFO No command line vars [11/Apr/2014 04:40:00 +0000] 8020 MainThread agent INFO Missing database jar: /usr/share/java/mysql-connector-java.jar (normal, if you're not using this database type) [11/Apr/2014 04:40:00 +0000] 8020 MainThread agent INFO Missing database jar: /usr/share/java/oracle-connector-java.jar (normal, if you're not using this database type) [11/Apr/2014 04:40:00 +0000] 8020 MainThread agent INFO Found database jar: /usr/share/cmf/lib/postgresql-9.0-801.jdbc4.jar [11/Apr/2014 04:40:00 +0000] 8020 MainThread agent INFO Agent starting as pid 8020 user root(0) group root(0). [11/Apr/2014 04:40:00 +0000] 8020 MainThread agent INFO Re-using pre-existing directory: /var/run/cloudera-scm-agent [11/Apr/2014 04:40:00 +0000] 8020 MainThread agent INFO Re-using pre-existing directory: /var/run/cloudera-scm-agent/cgroups [11/Apr/2014 04:40:00 +0000] 8020 MainThread cgroups INFO Reusing /var/run/cloudera-scm-agent/cgroups/memory [11/Apr/2014 04:40:00 +0000] 8020 MainThread cgroups INFO Reusing /var/run/cloudera-scm-agent/cgroups/cpu [11/Apr/2014 04:40:00 +0000] 8020 MainThread cgroups INFO Reusing /var/run/cloudera-scm-agent/cgroups/cpuacct [11/Apr/2014 04:40:00 +0000] 8020 MainThread cgroups INFO Reusing /var/run/cloudera-scm-agent/cgroups/blkio [11/Apr/2014 04:40:00 +0000] 8020 MainThread agent INFO Found cgroups capabilities: {'has_memory': True, 'default_memory_limit_in_bytes': -1, 'default_memory_soft_limit_in_bytes': -1, 'writable_cgroup_dot_procs': True, 'default_cpu_rt_runtime_us': 950000, 'has_cpu': True, 'default_blkio_weight': 1000, 'default_cpu_shares': 1024, 'has_cpuacct': True, 'has_blkio': True} [11/Apr/2014 04:40:00 +0000] 8020 MainThread agent INFO Setting up supervisord event monitor. [11/Apr/2014 04:40:00 +0000] 8020 MainThread filesystem_map INFO Monitored nodev filesystem types: ['nfs', 'nfs4', 'tmpfs'] [11/Apr/2014 04:40:00 +0000] 8020 MainThread filesystem_map INFO Using timeout of 2.000000 [11/Apr/2014 04:40:00 +0000] 8020 MainThread filesystem_map INFO Using join timeout of 0.100000 [11/Apr/2014 04:40:00 +0000] 8020 MainThread filesystem_map INFO Using tolerance of 60.000000 [11/Apr/2014 04:40:00 +0000] 8020 MainThread agent INFO Using metrics_url_timeout_seconds of 30.000000 [11/Apr/2014 04:40:00 +0000] 8020 MainThread agent INFO Using task_metrics_timeout_seconds of 5.000000 [11/Apr/2014 04:40:00 +0000] 8020 MainThread agent INFO Using max_collection_wait_seconds of 10.000000 [11/Apr/2014 04:40:00 +0000] 8020 MainThread metrics INFO Importing tasktracker metric schema from file /usr/lib64/cmf/agent/src/cmf/monitor/tasktracker/schema.json [11/Apr/2014 04:40:00 +0000] 8020 MainThread dns_names INFO Using timeout of 2.000000 [11/Apr/2014 04:40:00 +0000] 8020 MainThread ntp_monitor INFO Using timeout of 2.000000 [11/Apr/2014 04:40:00 +0000] 8020 MainThread __init__ INFO Importing metric schema from file /usr/lib64/cmf/agent/src/cmf/monitor/schema.json [11/Apr/2014 04:40:01 +0000] 8020 MainThread agent INFO Supervised processes will add the following to their environment (in addition to the supervisor's env): {'CDH_PARQUET_HOME': '/usr/lib/parquet', 'CDH_OOZIE_HOME': '/usr/lib/oozie', 'CDH_MR2_HOME': '/usr/lib/hadoop-mapreduce', 'CDH_ZOOKEEPER_HOME': '/usr/lib/zookeeper', 'CDH_HADOOP_BIN': '/usr/bin/hadoop', 'MGMT_HOME': '/usr/share/cmf', 'CDH_IMPALA_HOME': '/usr/lib/impala', 'CLOUDERA_MYSQL_CONNECTOR_JAR': '/usr/share/java/mysql-connector-java.jar', 'CDH_YARN_HOME': '/usr/lib/hadoop-yarn', 'CMF_PACKAGE_DIR': '/usr/lib64/cmf/service', 'CDH_SPARK_HOME': '/usr/lib/spark', 'PATH': '/sbin:/usr/sbin:/bin:/usr/bin', 'CDH_HDFS_HOME': '/usr/lib/hadoop-hdfs', 'CDH_SOLR_HOME': '/usr/lib/solr', 'CDH_PIG_HOME': '/usr/lib/pig', 'CDH_SQOOP2_HOME': '/usr/lib/sqoop2', 'CDH_HUE_PLUGINS_HOME': '/usr/lib/hadoop', 'CM_STATUS_CODES': u'STATUS_NONE HDFS_DFS_DIR_NOT_EMPTY HBASE_TABLE_DISABLED HBASE_TABLE_ENABLED JOBTRACKER_IN_STANDBY_MODE YARN_RM_IN_STANDBY_MODE', 'CDH_MR1_HOME': '/usr/lib/hadoop-0.20-mapreduce', 'CLOUDERA_ORACLE_CONNECTOR_JAR': '/usr/share/java/oracle-connector-java.jar', 'CDH_HUE_HOME': '/usr/lib/hue', 'CDH_CRUNCH_HOME': '/usr/lib/crunch', 'CDH_HIVE_HOME': '/usr/lib/hive', 'CDH_HTTPFS_HOME': '/usr/lib/hadoop-httpfs', 'CDH_HADOOP_HOME': '/usr/lib/hadoop', 'JSVC_HOME': '/usr/libexec/bigtop-utils', 'HIVE_DEFAULT_XML': '/etc/hive/conf.dist/hive-default.xml', 'WEBHCAT_DEFAULT_XML': '/etc/hive-webhcat/conf.dist/webhcat-default.xml', 'CLOUDERA_POSTGRESQL_JDBC_JAR': '/usr/share/cmf/lib/postgresql-9.0-801.jdbc4.jar', 'CDH_HBASE_INDEXER_HOME': '/usr/lib/hbase-solr', 'CDH_FLUME_HOME': '/usr/lib/flume-ng', 'TOMCAT_HOME': '/usr/lib/bigtop-tomcat', 'CDH_HBASE_HOME': '/usr/lib/hbase', 'CDH_SQOOP_HOME': '/usr/lib/sqoop', 'CDH_HCAT_HOME': '/usr/lib/hive-hcatalog', 'CDH_LLAMA_HOME': '/usr/lib/llama/'} [11/Apr/2014 04:40:01 +0000] 8020 MainThread agent INFO To override these variables, use /etc/cloudera-scm-agent/config.ini. Environment variables for CDH locations are not used when CDH is installed from parcels. [11/Apr/2014 04:40:01 +0000] 8020 MainThread agent INFO Re-using pre-existing directory: /var/run/cloudera-scm-agent/process [11/Apr/2014 04:40:01 +0000] 8020 MainThread agent INFO Re-using pre-existing directory: /var/run/cloudera-scm-agent/supervisor [11/Apr/2014 04:40:01 +0000] 8020 MainThread agent INFO Re-using pre-existing directory: /var/run/cloudera-scm-agent/supervisor/include [11/Apr/2014 04:40:01 +0000] 8020 MainThread agent ERROR Failed to connect to previous supervisor. Traceback (most recent call last): File "/usr/lib64/cmf/agent/src/cmf/agent.py", line 1231, in find_or_start_supervisor self.get_supervisor_process_info() File "/usr/lib64/cmf/agent/src/cmf/agent.py", line 1418, in get_supervisor_process_info self.identifier = self.supervisor_client.supervisor.getIdentification() File "/usr/lib64/python2.6/xmlrpclib.py", line 1199, in __call__ return self.__send(self.__name, args) File "/usr/lib64/python2.6/xmlrpclib.py", line 1489, in __request verbose=self.__verbose File "/usr/lib64/cmf/agent/build/env/lib/python2.6/site-packages/supervisor-3.0-py2.6.egg/supervisor/xmlrpc.py", line 460, in request self.connection.request('POST', handler, request_body, self.headers) File "/usr/lib64/python2.6/httplib.py", line 914, in request self._send_request(method, url, body, headers) File "/usr/lib64/python2.6/httplib.py", line 951, in _send_request self.endheaders() File "/usr/lib64/python2.6/httplib.py", line 908, in endheaders self._send_output() File "/usr/lib64/python2.6/httplib.py", line 780, in _send_output self.send(msg) File "/usr/lib64/python2.6/httplib.py", line 739, in send self.connect() File "/usr/lib64/python2.6/httplib.py", line 720, in connect self.timeout) File "/usr/lib64/python2.6/socket.py", line 567, in create_connection raise error, msg error: [Errno 111] Connection refused [11/Apr/2014 04:40:01 +0000] 8020 MainThread tmpfs INFO Reusing mounted tmpfs at /var/run/cloudera-scm-agent/process [11/Apr/2014 04:40:02 +0000] 8020 MainThread agent INFO Trying to connect to newly launched supervisor (Attempt 1) [11/Apr/2014 04:40:02 +0000] 8020 MainThread agent INFO Successfully connected to supervisor [11/Apr/2014 04:40:02 +0000] 8020 MainThread _cplogging INFO [11/Apr/2014:04:40:02] ENGINE Bus STARTING [11/Apr/2014 04:40:02 +0000] 8020 MainThread _cplogging INFO [11/Apr/2014:04:40:02] ENGINE Started monitor thread '_TimeoutMonitor'. [11/Apr/2014 04:40:02 +0000] 8020 MainThread _cplogging INFO [11/Apr/2014:04:40:02] ENGINE Serving on localhost.localdomain:9000 [11/Apr/2014 04:40:02 +0000] 8020 MainThread _cplogging INFO [11/Apr/2014:04:40:02] ENGINE Bus STARTED [11/Apr/2014 04:40:02 +0000] 8020 MainThread __init__ INFO New monitor: (<cmf.monitor.host.HostMonitor object at 0x1d9be10>,) [11/Apr/2014 04:40:02 +0000] 8020 MonitorDaemon-Scheduler __init__ INFO Monitor ready to report: ('HostMonitor',) [11/Apr/2014 04:40:02 +0000] 8020 MainThread agent WARNING Setting default socket timeout to 30! [11/Apr/2014 04:40:02 +0000] 8020 MainThread agent INFO Using parcels directory from server provided value: /opt/cloudera/parcels [11/Apr/2014 04:40:02 +0000] 8020 MainThread parcel INFO Agent does create users/groups and apply file permissions [11/Apr/2014 04:40:02 +0000] 8020 MainThread downloader INFO Downloader path: /opt/cloudera/parcel-cache [11/Apr/2014 04:40:02 +0000] 8020 MainThread parcel_cache INFO Using /opt/cloudera/parcel-cache for parcel cache [11/Apr/2014 04:40:02 +0000] 8020 MainThread agent INFO Active parcel list updated; recalculating component info. [11/Apr/2014 04:40:07 +0000] 8020 Monitor-HostMonitor throttling_logger INFO Using java location: '/usr/java/jdk1.7.0_45-cloudera/bin/java'. [11/Apr/2014 04:40:08 +0000] 8020 Monitor-HostMonitor throttling_logger WARNING hostname localhost.localdomain differs from the canonical name localhost   Any help will be very appreciated 🙂 ... View more