Datanode and Impala Daemon Instances Show Unknown Status on Cloudera Console
Hi Community,
I am unable to stop or start some Cloudera services.
Cloudera version: 7.11.3
CDP Version: 7.1.7 SP3
Below is the type of error I get while trying to stop (e.g) impala daemon from the Cloudera Manager console.
On the UI, it shows the status of the service is unknown as shown below. As you can see, the host 207 has a question mark in its status column, which signifies unknown status.

Also, for other host (206, 208), the hdfs datanode has the same issue as that of the impala daemon.
Apart from the impala daemon and hdfs datanode instances, I get the same issue on hue load balancer instance.
Everything was fine a few days ago until yesterday. I have tried restarting the cloudera-scm-supervisord and the cloudera-scm-agent but no luck.
Below is the cloudera-scm-agent.log error I get for all the hosts on which those services are running. It's like nothing else in the cloudera-scm-agent.log apart from the following error.
[09/Nov/2024 15:18:43 +0000] 14061 __run_queue process ERROR Failed to update {'id': 1546497355, 'name': 'impala-IMPALAD', 'program': 'impala/impala.sh', 'arguments': ['impalad', 'impalad_flags', 'false'], 'status_links': {'status': 'https://host-207.com:25000/'}, 'running': True, 'run_generation': 15, 'one_off': False, 'auto_restart': True, 'user': 'impala', 'group': 'impala', 'extra_groups': [], 'environment': {'GLOG_log_dir': '/data/log/impalad', 'HADOOP_CREDSTORE_PASSWORD': 'somePassword', 'JAVA_TOOL_OPTIONS': '-Xms8589934592 -Xmx8589934592 -Djavax.net.ssl.trustStore=/etc/pki/tls/private/trust.jks -Djavax.net.ssl.trustStorePassword=somePassword -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/tmp/impala_impala-IMPALAD-c4fcff50b410d1eeac2d6da18c375a7d_pid{{PID}}.hprof -XX:OnOutOfMemoryError={{AGENT_COMMON_DIR}}/killparent.sh', 'GLOG_logbuflevel': '0', 'JAVA_HOME': '/usr/java/default', 'GLOG_v': '1', 'GLOG_minloglevel': '0', 'CDH_VERSION': '7', 'USER': 'impala', 'GLOG_max_log_size': '20'}, 'resources': [{'dynamic': True, 'directory': None, 'file': None, 'tcp_listen': None, 'cpu': {'shares': 200}, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': True, 'directory': None, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': {'weight': 100}, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': None, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': {'soft_limit': -1, 'hard_limit': -1}, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': None, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': {'limit_fds': None, 'limit_memlock': None}, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': {'path': '/var/log/impalad/audit', 'user': 'impala', 'group': 'impala', 'mode': 448, 'bytes_free_warning_threshhold_bytes': 0}, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': {'path': '/data/impala/impalad', 'user': 'impala', 'group': 'impala', 'mode': 448, 'bytes_free_warning_threshhold_bytes': 0}, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': None, 'file': None, 'tcp_listen': {'bind_address': '0.0.0.0', 'port': 25000}, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': None, 'file': None, 'tcp_listen': {'bind_address': '0.0.0.0', 'port': 22000}, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': {'path': '/data/log/impalad', 'user': 'impala', 'group': 'impala', 'mode': 493, 'bytes_free_warning_threshhold_bytes': 0}, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': {'path': '/var/log/impala/audit/solr/spool', 'user': 'impala', 'group': 'impala', 'mode': 493, 'bytes_free_warning_threshhold_bytes': 0}, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': None, 'file': None, 'tcp_listen': {'bind_address': '0.0.0.0', 'port': 21000}, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': None, 'file': None, 'tcp_listen': {'bind_address': '0.0.0.0', 'port': 21050}, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': None, 'file': None, 'tcp_listen': {'bind_address': '0.0.0.0', 'port': 28000}, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': None, 'file': None, 'tcp_listen': {'bind_address': '0.0.0.0', 'port': 27000}, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': {'path': '/var/log/impalad/lineage', 'user': 'impala', 'group': 'impala', 'mode': 448, 'bytes_free_warning_threshhold_bytes': 0}, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': None, 'file': None, 'tcp_listen': {'bind_address': '0.0.0.0', 'port': 23000}, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': {'path': '/var/lib/ranger/impala/policy-cache', 'user': 'impala', 'group': 'impala', 'mode': 493, 'bytes_free_warning_threshhold_bytes': 0}, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': {'path': '/var/log/impalad', 'user': 'impala', 'group': 'impala', 'mode': 493, 'bytes_free_warning_threshhold_bytes': 0}, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': {'path': '/var/log/impala/audit/hdfs/spool', 'user': 'impala', 'group': 'impala', 'mode': 493, 'bytes_free_warning_threshhold_bytes': 0}, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': {'path': '/var/log/impala-minidumps', 'user': 'impala', 'group': 'impala', 'mode': 493, 'bytes_free_warning_threshhold_bytes': 0}, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': None, 'file': None, 'tcp_listen': {'bind_address': '0.0.0.0', 'port': 0}, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': {'path': '/var/log/impala/atlas-spool', 'user': 'impala', 'group': 'impala', 'mode': 493, 'bytes_free_warning_threshhold_bytes': 0}, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': {'path': '/var/lib/impala/udfs', 'user': 'impala', 'group': 'impala', 'mode': 493, 'bytes_free_warning_threshhold_bytes': 0}, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': True, 'directory': {'path': '/data/log/impalad/jstacks', 'user': 'impala', 'group': 'impala', 'mode': 493, 'bytes_free_warning_threshhold_bytes': 0}, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': {'path': '/var/lib/ranger/impala/policy-cache', 'user': 'impala', 'group': 'impala', 'mode': 493, 'bytes_free_warning_threshhold_bytes': 0}, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': {'path': '/var/log/impala/audit/hdfs/spool', 'user': 'impala', 'group': 'impala', 'mode': 493, 'bytes_free_warning_threshhold_bytes': 0}, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}, {'dynamic': False, 'directory': {'path': '/var/log/impala/audit/solr/spool', 'user': 'impala', 'group': 'impala', 'mode': 493, 'bytes_free_warning_threshhold_bytes': 0}, 'file': None, 'tcp_listen': None, 'cpu': None, 'named_cpu': None, 'io': None, 'memory': None, 'rlimits': None, 'contents': None, 'install': None, 'named_resource': None, 'custom_resource': None}], 'refresh_files': ['cloudera-stack-monitor.properties', 'cloudera-monitor.properties', 'cloudera-monitor.properties', 'navigator.client.properties', 'navigator.lineage.client.properties', 'impala-conf/fair-scheduler.xml', 'impala-conf/llama-site.xml', 'telepub.client.properties'], 'config_generation': 0, 'special_file_info': [], 'parcels': {'CDH': '7.1.7-1.cdh7.1.7.p3013.57035125', 'SPARK3': '3.2.3.3.2.7172000.0-334-1.p0.37609510'}, 'required_tags': ['cdh', 'impala'], 'optional_tags': ['hdfs-client-plugin', 'impala-plugin'], 'start_timeout_seconds': 20, 'expected_exitcodes': [], 'start_retries': 3}
Traceback (most recent call last):
File "/opt/cloudera/cm-agent/lib/python3.8/site-packages/cmf/process.py", line 449, in handle_heartbeat
process = cls(agent.cfg, agent, raw)
File "/opt/cloudera/cm-agent/lib/python3.8/site-packages/cmf/process.py", line 187, in __init__
self.process_info = json.load(f)
File "/opt/cloudera/cm-agent/lib/python3.8/site-packages/simplejson/__init__.py", line 467, in load
return loads(fp.read(),
File "/opt/cloudera/cm-agent/lib/python3.8/site-packages/simplejson/__init__.py", line 525, in loads
return _default_decoder.decode(s)
File "/opt/cloudera/cm-agent/lib/python3.8/site-packages/simplejson/decoder.py", line 370, in decode
obj, end = self.raw_decode(s)
File "/opt/cloudera/cm-agent/lib/python3.8/site-packages/simplejson/decoder.py", line 400, in raw_decode
return self.scan_once(s, idx=_w(s, idx).end())
simplejson.errors.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
I'm not sure where else to look at this point.

