DataNode Metrics
Reference information for DataNode Metrics
In addition to these base metrics, many aggregate metrics are available.
If an entity type has parents defined, you can formulate all possible
aggregate metrics using the formula
base_metric_across_parents.
In addition, metrics for aggregate totals can be formed by adding the prefix
total_ to the front of the metric name.
Use the type-ahead feature in the Cloudera Manager chart browser to find the exact aggregate metric name, in case the plural form does not end in "s".
For example, the following metric names may be valid for DataNode:
-
alerts_rate_across_clusters -
total_alerts_rate_across_clusters
Some metrics, such as alerts_rate, apply to nearly every metric context. Others only apply to a
certain service or role.
alerts_rate
- Description
- The number of alerts.
- Unit
- events per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
block_checksum_op_avg_time
- Description
- Block Checksum Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
block_checksum_op_rate
- Description
- Block Checksum Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
block_reports_avg_time
- Description
- Block Reports Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
block_reports_rate
- Description
- Block Reports Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
block_verification_failures_rate
- Description
- Block Verification Failures
- Unit
- failures per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
blocks_cached_rate
- Description
- The total number of HDFS blocks cached over the lifetime of the process.
- Unit
- blocks per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
blocks_get_local_path_info_rate
- Description
- Blocks Get Local Path Info
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
blocks_read_rate
- Description
- Blocks Read
- Unit
- blocks per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
blocks_removed_rate
- Description
- Blocks Removed
- Unit
- blocks per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
blocks_replicated_rate
- Description
- Blocks Replicated
- Unit
- blocks per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
blocks_total
- Description
- Blocks total
- Unit
- blocks
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
blocks_uncached_rate
- Description
- The total number of HDFS blocks uncached over the lifetime of the process.
- Unit
- blocks per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
blocks_verified_rate
- Description
- Blocks Verified
- Unit
- blocks per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
blocks_written_rate
- Description
- Blocks Written
- Unit
- blocks per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
bytes_read_rate
- Description
- Number of bytes read
- Unit
- bytes per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
bytes_written_rate
- Description
- Bytes Written
- Unit
- bytes per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
cache_capacity
- Description
- The capacity of the HDFS cache on this DataNode.
- Unit
- bytes
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
cache_reports_avg_time
- Description
- The average time to generate cache reports on the DataNode.
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
cache_reports_rate
- Description
- The total number of generate cache reports operations on the DataNode.
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
cache_used
- Description
- The total cache used.
- Unit
- bytes
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
cgroup_cpu_system_rate
- Description
- CPU usage of the role's cgroup
- Unit
- seconds per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
cgroup_cpu_user_rate
- Description
- User Space CPU usage of the role's cgroup
- Unit
- seconds per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
cgroup_mem_page_cache
- Description
- Page cache usage of the role's cgroup
- Unit
- bytes
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
cgroup_mem_rss
- Description
- Resident memory of the role's cgroup
- Unit
- bytes
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
cgroup_mem_swap
- Description
- Swap usage of the role's cgroup
- Unit
- bytes
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
cgroup_read_bytes_rate
- Description
- Bytes read from all disks by the role's cgroup
- Unit
- bytes per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
cgroup_read_ios_rate
- Description
- Number of read I/O operations from all disks by the role's cgroup
- Unit
- ios per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
cgroup_write_bytes_rate
- Description
- Bytes written to all disks by the role's cgroup
- Unit
- bytes per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
cgroup_write_ios_rate
- Description
- Number of write I/O operations to all disks by the role's cgroup
- Unit
- ios per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
copy_block_op_avg_time
- Description
- Copy Block Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
copy_block_op_rate
- Description
- Copy Block Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
cpu_system_rate
- Description
- Total System CPU
- Unit
- seconds per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
cpu_user_rate
- Description
- Total CPU user time
- Unit
- seconds per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
datanode_namenode_connections_bad
- Description
- NameNode connections in a bad state
- Unit
- connections
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
datanode_namenode_connections_good
- Description
- NameNode connections in a good state
- Unit
- connections
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
datanode_namenode_connections_unknown
- Description
- NameNode connections in a unknown state
- Unit
- connections
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
delete_block_pool_avg_time
- Description
- Delete Block Pool Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
delete_block_pool_rate
- Description
- Delete Block Pool Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
dfs_capacity
- Description
- Total configured HDFS storage capacity
- Unit
- bytes
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
dfs_capacity_used
- Description
- Storage space used by HDFS files
- Unit
- bytes
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
dfs_capacity_used_non_hdfs
- Description
- Storage space used by non-HDFS files
- Unit
- bytes
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
events_critical_rate
- Description
- The number of critical events.
- Unit
- events per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
events_important_rate
- Description
- The number of important events.
- Unit
- events per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
events_informational_rate
- Description
- The number of informational events.
- Unit
- events per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
fd_max
- Description
- Maximum number of file descriptors
- Unit
- file descriptors
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
fd_open
- Description
- Open file descriptors.
- Unit
- file descriptors
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
flush_nanos_avg_time
- Description
- Average Disk Flush Time
- Unit
- nanos
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
flush_nanos_rate
- Description
- Disk Flushes
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
fsync_nanos_avg_time
- Description
- Average Disk Fsync Time
- Unit
- nanos
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
fsync_nanos_rate
- Description
- Disk Fsyncs
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
fsync_rate
- Description
- Fsync Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
gc_count_concurrent_mark_sweep_rate
- Description
- The number of garbage collections by the Concurrent Mark Sweep Collector.
- Unit
- garbage collections per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
gc_count_par_new_rate
- Description
- The number of garbage collections by the Parallel Collector.
- Unit
- garbage collections per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
gc_time_ms_concurrent_mark_sweep_rate
- Description
- The total time spent in garbage collections by the Concurrent Mark Sweep Collector.
- Unit
- ms per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
gc_time_ms_par_new_rate
- Description
- The total time spent in garbage collections by the Parallel Collector.
- Unit
- ms per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
get_block_local_path_info_avg_time
- Description
- Get Block Local Path Info Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
get_block_local_path_info_rate
- Description
- Get Block Local Path Info Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
get_hadoop_groups_avg_time
- Description
- Average Time to get Hadoop group for the user
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
get_hadoop_groups_rate
- Description
- Get Hadoop User Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
get_hdfs_blocks_metadata_avg_time
- Description
- Get HDFS Blocks Metadata Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
get_hdfs_blocks_metadata_rate
- Description
- Get HDFS Blocks Metadata Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
get_replica_visible_length_avg_time
- Description
- Get Replica Visible Length Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
get_replica_visible_length_rate
- Description
- Get Replica Visible Length Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
health_bad_rate
- Description
- Percentage of Time with Bad Health
- Unit
- seconds per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
health_concerning_rate
- Description
- Percentage of Time with Concerning Health
- Unit
- seconds per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
health_disabled_rate
- Description
- Percentage of Time with Disabled Health
- Unit
- seconds per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
health_good_rate
- Description
- Percentage of Time with Good Health
- Unit
- seconds per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
health_unknown_rate
- Description
- Percentage of Time with Unknown Health
- Unit
- seconds per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
heartbeats_avg_time
- Description
- Heartbeat Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
heartbeats_rate
- Description
- Heartbeats
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
init_replica_recovery_avg_time
- Description
- Init Replica Recovery Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
init_replica_recovery_rate
- Description
- Init Replica Recovery Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_blocked_threads
- Description
- Blocked threads
- Unit
- threads
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_gc_rate
- Description
- Number of garbage collections
- Unit
- garbage collections per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_gc_time_ms_rate
- Description
- Total time spent garbage collecting.
- Unit
- ms per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_heap_committed_mb
- Description
- Total amount of committed heap memory.
- Unit
- MB
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_heap_used_mb
- Description
- Total amount of used heap memory.
- Unit
- MB
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_max_memory_mb
- Description
- Maximum allowed memory.
- Unit
- MB
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_new_threads
- Description
- New threads
- Unit
- threads
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_non_heap_committed_mb
- Description
- Total amount of committed non-heap memory.
- Unit
- MB
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_non_heap_used_mb
- Description
- Total amount of used non-heap memory.
- Unit
- MB
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_pauses_info_threshold_exceeded_rate
- Description
- Number of pauses detected over the info threshold. The pause monitor thread sleeps for 500 ms and calculates the extra time it spent paused on top of the sleep time. If the extra sleep time exceeds 1 second, it treats it as one pause above the info threshold.
- Unit
- pauses per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_pauses_warn_threshold_exceeded_rate
- Description
- Number of pauses detected over the warn threshold. The pause monitor thread sleeps for 500 ms and calculates the extra time it spent paused on top of the sleep time. If the extra sleep time exceeds 10 seconds, it treats it as one pause above the warn threshold.
- Unit
- pauses per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_runnable_threads
- Description
- Runnable threads
- Unit
- threads
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_terminated_threads
- Description
- Terminated threads
- Unit
- threads
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_timed_waiting_threads
- Description
- Timed waiting threads
- Unit
- threads
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_total_threads
- Description
- Total threads
- Unit
- threads
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
jvm_waiting_threads
- Description
- Waiting threads
- Unit
- threads
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
log_error_rate
- Description
- Logged Errors
- Unit
- messages per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
log_fatal_rate
- Description
- Logged Fatals
- Unit
- messages per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
log_info_rate
- Description
- Logged Infos
- Unit
- messages per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
log_warn_rate
- Description
- Logged Warnings
- Unit
- messages per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
login_failure_avg_time
- Description
- Average Failed Login Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
login_failure_rate
- Description
- Login Failures
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
login_success_avg_time
- Description
- Average Successful Login Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
login_success_rate
- Description
- Login Successes
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
mem_rss
- Description
- Resident memory used
- Unit
- bytes
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
mem_swap
- Description
- Amount of swap memory used by this role's process.
- Unit
- bytes
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
mem_virtual
- Description
- Virtual memory used
- Unit
- bytes
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
metrics_dropped_pub_all
- Description
- Dropped Metrics Updates By All Sinks
- Unit
- updates
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
metrics_num_active_sinks
- Description
- Active Metrics Sinks Count
- Unit
- sinks
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
metrics_num_active_sources
- Description
- Active Metrics Sources Count
- Unit
- sources
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
metrics_num_all_sinks
- Description
- All Metrics Sinks Count
- Unit
- sinks
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
metrics_num_all_sources
- Description
- All Metrics Sources Count
- Unit
- sources
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
metrics_publish_avg_time
- Description
- Metrics Publish Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
metrics_publish_rate
- Description
- Metrics Publish Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
metrics_snapshot_avg_time
- Description
- Metrics Snapshot Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
metrics_snapshot_rate
- Description
- Metrics Snapshot Average Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
num_blocks_failed_to_cache_rate
- Description
- The total number of blocks the DataNode failed to cache.
- Unit
- blocks per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
num_blocks_failed_to_uncache_rate
- Description
- The total number of blocks the DataNode failed to uncache.
- Unit
- blocks per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
oom_exits_rate
- Description
- 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.
- Unit
- exits per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
packet_ack_round_trip_time_nanos_avg_time
- Description
- Packet Ack Round Trip Average Time
- Unit
- nanos
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
packet_ack_round_trip_time_nanos_rate
- Description
- Packet Ack Round Trip Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
pause_time_rate
- Description
- Total time spent paused. This is the total extra time the pause monitor thread spent sleeping on top of the requested 500 ms.
- Unit
- ms per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
pauses_rate
- Description
- Number of pauses detected. The pause monitor thread sleeps for 500 ms and calculates the extra time it spent paused on top of the sleep time. If the extra sleep time exceeds 1 second, it treats it as one pause.
- Unit
- pauses per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
read_block_op_avg_time
- Description
- Read Block Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
read_block_op_rate
- Description
- Read Block Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
read_bytes_rate
- Description
- The number of bytes read from the device
- Unit
- bytes per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
reads_from_local_client_rate
- Description
- Reads From Local Clients
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
reads_from_remote_client_rate
- Description
- Reads From Remote Clients
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
refresh_namenodes_avg_time
- Description
- Refresh NameNodes Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
refresh_namenodes_rate
- Description
- Refresh NameNodes Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
replace_block_op_avg_time
- Description
- Replace Block Operation Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
replace_block_op_rate
- Description
- Replace Block Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
rpc_authentication_failures_rate
- Description
- RPC Authentication Failures
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
rpc_authentication_successes_rate
- Description
- RPC Authentication Successes
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
rpc_authorization_failures_rate
- Description
- RPC Authorization Failures
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
rpc_authorization_successes_rate
- Description
- RPC Authorization Successes
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
rpc_call_queue_length
- Description
- RPC Call Queue Length
- Unit
- items
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
rpc_num_open_connections
- Description
- Open RPC Connections
- Unit
- connections
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
rpc_processing_time_avg_time
- Description
- Average RPC Processing Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
rpc_processing_time_rate
- Description
- RPCs Processed
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
rpc_queue_time_avg_time
- Description
- Average RPC Queue Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
rpc_queue_time_rate
- Description
- RPCs Queued
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
rpc_received_bytes_rate
- Description
- RPC Received Bytes
- Unit
- bytes per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
rpc_sent_bytes_rate
- Description
- RPC Sent Bytes
- Unit
- bytes per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
send_data_packet_blocked_on_network_nanos_avg_time
- Description
- Send Data Packet Blocked On Network Average Time
- Unit
- nanos
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
send_data_packet_blocked_on_network_nanos_rate
- Description
- Send Data Packet Blocked On Network Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
send_data_packet_transfer_nanos_avg_time
- Description
- Send Data Packet Transfer Average Time
- Unit
- nanos
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
send_data_packet_transfer_nanos_rate
- Description
- Send Data Packet Transfer Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
unexpected_exits_rate
- Description
- The number of times the role's backing process exited unexpectedly.
- Unit
- exits per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
update_replica_under_recovery_avg_time
- Description
- Update Replica Under Recovery Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
update_replica_under_recovery_rate
- Description
- Update Replica Under Recovery Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
uptime
- Description
- For a host, the amount of time since the host was booted. For a role, the uptime of the backing process.
- Unit
- seconds
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
volume_failures
- Description
- Volume failures
- Unit
- volumes
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
web_metrics_collection_duration
- Description
- Web Server Responsiveness
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
write_block_op_avg_time
- Description
- Write Block Average Time
- Unit
- ms
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
write_block_op_rate
- Description
- Write Block Operations
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
write_bytes_rate
- Description
- The number of bytes written to the device
- Unit
- bytes per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
writes_from_local_client_rate
- Description
- Writes From Local Clients
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
writes_from_remote_client_rate
- Description
- Writes From Remote Clients
- Unit
- operations per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
xceivers
- Description
- Transceivers
- Unit
- transceivers
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 5, CDH 6, CDH 7
ec_decoding_time_rate
- Description
- Time spent in decoding during erasure coding
- Unit
- nanos per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 6, CDH 7
ec_failed_reconstruction_tasks_rate
- Description
- Number of failed reconstruction tasks during erasure coding
- Unit
- tasks per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 6, CDH 7
ec_reconstruction_bytes_read_rate
- Description
- Number of bytes read during erasure coding reconstruction
- Unit
- bytes per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 6, CDH 7
ec_reconstruction_bytes_written_rate
- Description
- Number of bytes written during erasure coding reconstruction
- Unit
- bytes per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 6, CDH 7
ec_reconstruction_decoding_time_rate
- Description
- Decoding time spent during erasure coding reconstruction
- Unit
- ms per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 6, CDH 7
ec_reconstruction_read_time_rate
- Description
- Read time spent during erasure coding reconstruction
- Unit
- ms per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 6, CDH 7
ec_reconstruction_remote_bytes_read_rate
- Description
- Number of remote bytes read during erasure coding reconstruction
- Unit
- bytes per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 6, CDH 7
ec_reconstruction_tasks_rate
- Description
- Number of reconstruction tasks during erasure coding
- Unit
- tasks per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 6, CDH 7
ec_reconstruction_write_time_rate
- Description
- Write time spent during erasure coding reconstruction
- Unit
- ms per second
- Parents
- cluster, hdfs, rack
- CDH Version
- CDH 6, CDH 7
