| Active Anti Entropy Stage Tasks | Active tasks for repairing consistency |
| Active Cache Cleanups | Active tasks to clear the cache |
| Active Compaction Executor Tasks | |
| Active Counter Mutation Stage Tasks | |
| Active Gossip Stage Tasks | Active tasks sharing knowledge of node state |
| Active Internal Response Stage Tasks | Active tasks responding to non-client initiated messages, including bootstrapping and schema checking |
| Active Memtable Flush Writer Tasks | Active writes of memtable contents to disk |
| Active Memtable Post Flush Tasks | Active post flush operations, like discarding commit log files and flushing secondary indexes |
| Active Memtable Reclaim Memory Tasks (Seconds) | Active tasks to make unused memory available |
| Active Migration Stage Tasks | Active changes to the schema |
| Active Misc Stage Tasks | Active miscellaneous operations, including snapshotting or replicating data after a node has been removed |
| Active Mutation Stage Tasks | Active local writes |
| Active Native Transport Requests | Active requests to the server using the CQL Native Protocol |
| Active Pending Range Calculator Tasks | Active calculations of pending rangers per bootstraps and departed nodes |
| Active Read Repair Stage Tasks | Active check for and repair of damaged replicas |
| Active Read Stage Tasks | Active local reads |
| Active Request Response Stage Tasks | Active tasks to handle responses from other nodes |
| Active Validation Executor Tasks | Active schema validations |
| Active View Mutation Stage Tasks | Active mutations applied to a view after modifications to a base table |
| Available Processors | Number of available processors |
| Batch Size Failure Threshold (Kibibytes) | The maximum size a batch may yield before aborting |
| CAS Contention Timeout (Milliseconds) | Amount of time to wait for contention resolution for lightweight transactions |
| CAS Read Condition Not Met | Number of transaction preconditions that did not match current values during read |
| CAS Read Contention | Number of lightweight transaction reads that were contended |
| CAS Read Failures | Lightweight transaction reads that failed |
| CAS Read Latency (Microseconds) | Average duration of CAS Read events |
| CAS Read Latency Event Count (Microseconds) | |
| CAS Read Timeouts | Number of lightweight transaction reads that timed out |
| CAS Read Total Latency (Microseconds) | Time spent in CAS Read events since process start |
| CAS Read Unavailables | Number of lightweight transaction reads that failed because too many replicas were unavailable |
| CAS Read Unfinished Commit | Number of lightweight transactions that were committed on read |
| CAS Write Condition Not Met | Number of lightweight transaction writes where preconditions did not match current values |
| CAS Write Contention | Number of lightweight transaction writes that were contended |
| CAS Write Failures | Number of lightweight transaction writes that failed |
| CAS Write Latency (Microseconds) | Average duration of CAS Write events |
| CAS Write Latency Event Count (Microseconds) | Number of CAS Write events since process start |
| CAS Write Timeouts | Number of lightweight transaction writes that timed out |
| CAS Write Total Latency (Microseconds) | Time spent in CAS Write events since process start |
| CAS Write Unavailables | Number of lightweight transaction writes that failed because too many nodes were unavailable |
| CAS Write Unfinished Commit | Number of transactions that were committed on write |
| Chunk Cache Capacity (Bytes) | |
| Chunk Cache Entries | Total number of chunk cache entries |
| Chunk Cache Misses | Total number of chunk cache misses |
| Chunk Cache Requests | Total number of chunk cache requests |
| Chunk Cache Size (Bytes) | Total size of occupied chunk cache |
| Committed Heap Memory (Bytes) | Amount of heap memory committed for the JVM |
| Committed Non-Heap Memory (Bytes) | Amount of non-heap memory committed for the JVM |
| Committed Virtual Memory Size (Bytes) | |
| Compaction Throughput (Mebibytes per Second) | Throttles compaction to the specified total throughput across the node |
| Completed Anti Entropy Stage Tasks | Completed tasks for repairing consistency |
| Completed Cache Cleanups | Number of times the cache has been cleared |
| Completed Compaction Executor Tasks | |
| Completed Counter Mutation Stage Tasks | Completed local counter changes |
| Completed Gossip Stage Tasks | Completed tasks sharing knowledge of node state |
| Completed Internal Response Stage Tasks | Completed tasks responding to non-client initiated messages, including bootstrapping and schema checking |
| Completed Memtable Flush Writer Tasks | Completed writes of memtable contents to disk |
| Completed Memtable Post Flush Tasks | Completed post flush operations, like discarding commit log files and flushing secondary indexes |
| Completed Memtable Reclaim Memory Tasks | Completed tasks to make unused memory available |
| Completed Migration Stage Tasks | Completed changes to the schema |
| Completed Misc Stage Tasks | Completed miscellaneous operations, including snapshotting or replicating data after a node has been removed |
| Completed Mutation Stage Tasks | Completed local writes |
| Completed Native Transport Requests | Completed requests to the server using the CQL Native Protocol |
| Completed Pending Range Calculator Tasks | Completed calculations of pending rangers per bootstraps and departed nodes |
| Completed Read Repair Stage Tasks | Completed check for and repair of damaged replicas |
| Completed Read Stage Tasks | |
| Completed Request Response Stage Tasks | Completed tasks to handle responses from other nodes |
| Completed Validation Executor Tasks | Completed schema validations |
| Completed View Mutation Stage Tasks | Completed mutations applied to a view after modifications to a base table |
| Concurrent Mark Sweep Collection Count | Number of times the old generation has been garbage collected |
| Concurrent Mark Sweep Collection Time (Milliseconds) | Elapsed time garbage collecting the old generation, or relatively long-lived objects |
| Counter Cache Capacity | |
| Counter Cache Entries | |
| Counter Cache Hits | |
| Counter Cache Keys to Save | Number of keys that should be saved to disk to quickly warm the counter cache on startup |
| Counter Cache Requests | |
| Counter Cache Save Period (Seconds) | How often to save counter caches to disk |
| Counter Cache Size (Bytes) | Total size of occupied counter cache |
| Counter Write RPC Timeout (Milliseconds) | Timeout for counter updates |
| Current Generation Number | A value that changes every time the node restarts, faccilitating coordination of data throughout the cluster |
| Daemon Threads | Current number of live daemon threads |
| Drain Progress | Progress of drain operations |
| Free Physical Memory Size (Bytes) | Amount of free memory available to the operating system |
| Free Swap Space Size (Bytes) | Amount of free swap space |
| Gossip Running | Whether gossip is running |
| Hinted Handoff Enabled | A hint indicates that a write needs to be replayed to an unavailable node |
| Incremental Backups Enabled | Backs up data updated since the last snapshot was taken |
| Index Info Count | Number of on-heap index entries |
| Index Info Gets | Number of index seeks |
| Indexed Entry Size (Bytes) | On-heap index size |
| Initial Heap Memory (Bytes) | Amount of heap memory that the JVM initially requests from the operating system |
| Initial Non-Heap Memory (Bytes) | Amount of non-heap memory that the JVM initially requests from the operating system |
| Initialized | Whether the node is successfully initialized |
| Inter DC Stream Throughput (Megabits per Second) | Throttles all streaming file transfer between the datacenters |
| Internal IP Address | The IP used for communication within the Cassandra cluster |
| Java Version | Java Version |
| Joined | Whether or not the node has joined the cluster |
| JVM Implementation | JVM implementation name |
| Key Cache Capacity (Bytes) | Key cache capacity in bytes |
| Key Cache Entries | Total number of key cache entries |
| Key Cache Hits | Total number of key cache hits |
| Key Cache Keys to Save | Number of keys that should be saved to disk to quickly warm the key cache on startup |
| Key Cache Requests | Total number of key cache requests |
| Key Cache Save Period (Seconds) | How often to save key caches to disk |
| Key Cache Size (Bytes) | Total size of occupied key cache |
| Load String | Human-readable load value |
| Maximum File Descriptors | Maximum number of open file descriptors allowed by the operating system |
| Maximum Heap Memory (Bytes) | Maximum amount of heap memory that could be committed for the JVM |
| Maximum Hint Window (Milliseconds) | Maximum amount of time that hints are generated for an unresponsive node |
| Maximum Non-Heap Memory (Bytes) | Maximum amount of non-heap memory that could be committed for the JVM |
| Native Transport Maximum Concurrent Connections | Maximum number of concurrent client connections |
| Native Transport Running | Whether or not the native protocol server is running |
| Objects Pending Finalization | Number of objects queued for finalization, where their memory usage will be reclaimed |
| Open File Descriptors | Current number of open file descriptors |
| Operating System | Name of the operating system |
| Operating System Architecture | Hardware architecture |
| Operating System Version | Version of the operating system |
| Operation Mode | Operational mode (leaving, joining, normal, decommissioned, client) |
| ParNew (Stop the World) Collection Count | Number of times the new generation has been garbage collected |
| ParNew (Stop the World) Collection Time (Milliseconds) | Elapsed time garbage collecting the new generation, or relatively short-lived objects |
| Pending Anti Entropy Stage Tasks | Pending tasks for repairing consistency |
| Pending Cache Cleanups | Pending tasks to clear the cache |
| Pending Compaction Executor Tasks | Pending compactions |
| Pending Counter Mutation Stage Tasks | Pending local counter changes |
| Pending Gossip Stage Tasks | Pending tasks sharing knowledge of node state |
| Pending Internal Response Stage Tasks | Pending tasks responding to non-client initiated messages, including bootstrapping and schema checking |
| Pending Memtable Flush Writer Tasks | Pending writes of memtable contents to disk |
| Pending Memtable Post Flush Tasks | Pending post flush operations, like discarding commit log files and flushing secondary indexes |
| Pending Memtable Reclaim Memory Tasks | Pending tasks to make unused memory available |
| Pending Migration Stage Tasks | Pending changes to the schema |
| Pending Misc Stage Tasks | Pending miscellaneous operations, including snapshotting or replicating data after a node has been removed |
| Pending Mutation Stage Tasks | Pending local writes |
| Pending Native Transport Requests | Queued requests to the server using the CQL Native Protocol |
| Pending Pending Range Calculator Tasks | Pending calculations of pending rangers per bootstraps and departed nodes |
| Pending Read Repair Stage Tasks | Pending check for and repair of damaged replicas |
| Pending Read Stage Tasks | Pending local reads |
| Pending Request Response Stage Tasks | Pending tasks to handle responses from other nodes |
| Pending Validation Executor Tasks | Pending schema validations |
| Pending View Mutation Stage Tasks | Pending mutations applied to a view after modifications to a base table |
| Prepared Statements | Number of prepared statements |
| Prepared Statements Evicted | Number of prepared statements that have been evicted to save space for other prepared statements |
| Prepared Statements Executed | Number of prepared statements executed |
| Process CPU Load | Process CPU Load |
| Process CPU Time (Nanoseconds) | Amount of time used by the process |
| Range RPC Timeout (Milliseconds) | Timeout for range requests, which may take longer |
| Range Slice Failures | Number of token range read requests that failed |
| Range Slice Latency (Microseconds) | Average duration of Range Slice events |
| Range Slice Latency Event Count (Microseconds) | Number of Range Slice events since process start |
| Range Slice Timeouts | Number of token range read requests that timed out |
| Range Slice Total Latency (Microseconds) | Time spent in Range Slice events since process start |
| Range Slice Unavailables | Number of token range read requests that failed because too many nodes were unavailable |
| Read Failures | Reads that failed |
| Read Latency (Microseconds) | Average duration of Read events |
| Read Latency Event Count (Microseconds) | Number of Read events since process start |
| Read RPC Timeout (Milliseconds) | Timeout for reads |
| Read Timeouts | Reads that timed out |
| Read Total Latency (Microseconds) | Time spent in Read events since process start |
| Read Unavailables | Reads that failed because too many nodes were unavailable |
| Regular Statements Executed | Number of regular (non-prepared) statements executed |
| Release Version | Version of Cassandra |
| Removal Status | Status of token removals |
| Row Cache Capacity (Bytes) | Row cache capacity |
| Row Cache Entries | Total number of row cache entries |
| Row Cache Hits | Total number of row cache hits |
| Row Cache Keys to Save | Number of keys that should be saved to disk to quickly warm the row cache on startup |
| Row Cache Requests | Total number of row cache requests |
| Row Cache Save Period (Seconds) | How often to save row caches to disk |
| Row Cache Size (Bytes) | Total size of occupied row cache |
| RPC Server Running | Whether or not the Thrift (RPC) server is running |
| RPC Timeout (Milliseconds) | Overall timeout for all requests |
| Schema Version | Identifier for the current version of the schema, for comparison purposes |
| Started Threads | Total number of threads created and also started since the Java virtual machine started |
| Starting | Whether the node is starting |
| Storage Exceptions | Number of internal exceptions caught |
| Storage Load (Bytes) | Size of the on disk data size this node manages |
| Storage Total Hints | Number of hint messages written to this node since restart |
| Stream Throughput (Megabits per Second) | Throttles all outbound streaming file transfers on a node to the specified throughput |
| Streaming Socket Timeout (Milliseconds) | How long to wait before timing out a stream and retrying it from the start of the current file |
| System CPU Load | System CPU Load |
| System Load Average | System load average |
| Threads | Current number of live threads including both daemon and non-daemon threads |
| Tombstone Failure Threshold | The maximum number of tombstones a query can scan before aborting |
| Tombstone Warn Threshold | The maximum number of tombstones a query can scan before warning |
| Total Hints in Progress | Number of hints attemping to be sent currently |
| Total Physical Memory Size (Bytes) | Amount of memory available to the operating system |
| Total Swap Space Size (Bytes) | Amount of swap space allocated |
| Truncate RPC Timeout (Milliseconds) | Timeout for truncate requests, which generally take longer than other requests because of flushing requirements |
| Uptime (Milliseconds) | Time since Cassandra last started |
| Used Heap Memory (Bytes) | Amount of heap memory in use |
| Used Non-Heap Memory (Bytes) | Amount of non-heap memory in use |
| View Pending Mutations | View mutations that have been attempted but have not yet succeeded |
| View Replicas Attempted | Number of attempted view replications |
| View Replicas Succeeded | Number of successful view replications |
| View Write Failures | View writes that failed |
| View Write Latency (Microseconds) | Average duration of View Write events |
| View Write Latency Event Count (Microseconds) | Number of View Write events since process start |
| View Write Timeouts | Timeouts when writing to materialized views |
| View Write Total Latency (Microseconds) | Time spent in View Write events since process start |
| View Write Unavailables | View writes that failed because too many replicas were unavailable |
| Virtual Machine Version | JVM Implementation Version |
| Write Failures | Writes that have failed |
| Write Latency (Microseconds) | Average duration of Write events |
| Write Latency Event Count (Microseconds) | Number of Write events since process start |
| Write RPC Timeout (Milliseconds) | Timeout for writes |
| Write Timeouts | Writes that have timed out |
| Write Total Latency (Microseconds) | Time spent in Write events since process start |
| Write Unavailables | Writes that failed because too many replicas were unavailable |
