Impala Catalog Server Metrics

Metric Name Description Unit CDH Version
alerts_rate The number of alerts. events per second CDH 5
cgroup_cpu_system_rate CPU usage of the role's cgroup seconds per second CDH 5
cgroup_cpu_user_rate User Space CPU usage of the role's cgroup seconds per second CDH 5
cgroup_mem_page_cache Page cache usage of the role's cgroup bytes CDH 5
cgroup_mem_rss Resident memory of the role's cgroup bytes CDH 5
cgroup_mem_swap Swap usage of the role's cgroup bytes CDH 5
cgroup_read_bytes_rate Bytes read from all disks by the role's cgroup bytes per second CDH 5
cgroup_read_ios_rate Number of read I/O operations from all disks by the role's cgroup ios per second CDH 5
cgroup_write_bytes_rate Bytes written to all disks by the role's cgroup bytes per second CDH 5
cgroup_write_ios_rate Number of write I/O operations to all disks by the role's cgroup ios per second CDH 5
cpu_system_rate Total System CPU seconds per second CDH 5
cpu_user_rate Total CPU user time seconds per second CDH 5
events_critical_rate The number of critical events. events per second CDH 5
events_important_rate The number of important events. events per second CDH 5
events_informational_rate The number of informational events. events per second CDH 5
fd_max Maximum number of file descriptors file descriptors CDH 5
fd_open Open file descriptors. file descriptors CDH 5
health_bad_rate Percentage of Time with Bad Health seconds per second CDH 5
health_concerning_rate Percentage of Time with Concerning Health seconds per second CDH 5
health_disabled_rate Percentage of Time with Disabled Health seconds per second CDH 5
health_good_rate Percentage of Time with Good Health seconds per second CDH 5
health_unknown_rate Percentage of Time with Unknown Health seconds per second CDH 5
mem_rss Resident memory used bytes CDH 5
mem_swap Amount of swap memory used by this role's process. bytes CDH 5
mem_virtual Virtual memory used bytes CDH 5
oom_exits_rate The number of times the role's backing process was killed due to an OutOfMemory error. This counter is only incremented if the Cloudera Manager "Kill When Out of Memory" option is enabled. exits per second CDH 5
read_bytes_rate The number of bytes read from the device bytes per second CDH 5
statestore_subscriber_heartbeat_interval_time_last The most recent interval between heartbeats from this Impala Daemon to the StateStore. seconds CDH 5
statestore_subscriber_heartbeat_interval_time_max The maximum interval between heartbeats from this Impala Daemon to the StateStore. This is calculated over the lifetime of the Impala Daemon. seconds CDH 5
statestore_subscriber_heartbeat_interval_time_mean The average interval between heartbeats from this Impala Daemon to the StateStore. This is calculated over the lifetime of the Impala Daemon. seconds CDH 5
statestore_subscriber_heartbeat_interval_time_min The minimum interval between heartbeats from this Impala Daemon to the StateStore. This is calculated over the lifetime of the Impala Daemon. seconds CDH 5
statestore_subscriber_heartbeat_interval_time_rate The total number of samples taken of the Impala Daemon's StateStore heartbeat interval. samples per second CDH 5
statestore_subscriber_heartbeat_interval_time_stddev The standard deviation in the interval between heartbeats from this Impala Daemon to the StateStore. This is calculated over the lifetime of the Impala Daemon. seconds CDH 5
statestore_subscriber_last_recovery_duration The amount of time the StateStore subscriber took to recover the connection the last time it was lost. seconds CDH 5
statestore_subscriber_statestore_client_cache_clients_in_use The number of active StateStore subscriber clients in this Impala Daemon's client cache. These clients are for communication from this role to the StateStore. connections CDH 5
statestore_subscriber_statestore_client_cache_total_clients The total number of StateStore subscriber clients in this Impala Daemon's client cache. These clients are for communication from this role to the StateStore. connections CDH 5
tcmalloc_bytes_in_use Number of bytes used by the application. This will not typically match the memory use reported by the OS, because it does not include TCMalloc overhead or memory fragmentation. bytes CDH 5
tcmalloc_pageheap_free_bytes Number of bytes in free, mapped pages in page heap. These bytes can be used to fulfill allocation requests. They always count towards virtual memory usage, and unless the underlying memory is swapped out by the OS, they also count towards physical memory usage. bytes CDH 5
tcmalloc_pageheap_unmapped_bytes Number of bytes in free, unmapped pages in page heap. These are bytes that have been released back to the OS, possibly by one of the MallocExtension "Release" calls. They can be used to fulfill allocation requests, but typically incur a page fault. They always count towards virtual memory usage, and depending on the OS, typically do not count towards physical memory usage. bytes CDH 5
tcmalloc_physical_bytes_reserved Derived metric computing the amount of physical memory (in bytes) used by the process, including that actually in use and free bytes reserved by tcmalloc. Does not include the tcmalloc metadata. bytes CDH 5
tcmalloc_total_bytes_reserved Bytes of system memory reserved by TCMalloc. bytes CDH 5
thrift_server_catalog_service_connections_in_use The number of active catalog service connections to this Catalog Server. connections CDH 5
thrift_server_catalog_service_connections_rate The total number of connections made to this Catalog Server's catalog service over its lifetime. connections per second CDH 5
unexpected_exits_rate The number of times the role's backing process exited unexpectedly. exits per second CDH 5
uptime For a host, the amount of time since the host was booted. For a role, the uptime of the backing process. seconds CDH 5
write_bytes_rate The number of bytes written to the device bytes per second CDH 5
impala_catalogserver_jvm_heap_committed_usage_bytes Jvm heap Committed Usage Bytes bytes CDH 5
impala_catalogserver_jvm_heap_current_usage_bytes Jvm heap Current Usage Bytes bytes CDH 5
impala_catalogserver_jvm_heap_init_usage_bytes JVM heap Init Usage Bytes bytes CDH 5
impala_catalogserver_jvm_heap_max_usage_bytes JVM heap Max Usage Bytes bytes CDH 5