This topic describes the metrics for ApsaraDB for Cassandra.
When you call an API operation provided by Cloud Monitor, you may need to set the Namespace and Period parameters. Set the parameters for ApsaraDB for the current service in the following way:
- Set the Namespace parameter to acs_cds.
- Set the Period parameter to an integral multiple of 60s. The default value is 60s.
The following table describes the valid values of the MetricName and Dimensions parameters for the current service.
| Metric | Unit | MetricName | Dimensions | Statistics |
|---|---|---|---|---|
| AntiEntropy Active Tasks | count | AntiEntropyActiveTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| AntiEntropy Pending Tasks | count | AntiEntropyPendingTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Auth Failure | count | AuthFailure | userId, clusterId, and host | Average, Maximum, and Minimum |
| CAS Read Latency | ms | CasReadLatency | userId, clusterId, and host | Average, Maximum, and Minimum |
| CAS Read Request | count/s | CasReadRequest | userId, clusterId, and host | Average, Maximum, and Minimum |
| CAS Read Unfinished Commit | count/s | CasReadUnfinishedCommit | userId, clusterId, and host | Average, Maximum, and Minimum |
| CAS Write Latency | ms | CasWriteLatency | userId, clusterId, and host | Average, Maximum, and Minimum |
| CAS Write Request | count/s | CasWriteRequest | userId, clusterId, and host | Average, Maximum, and Minimum |
| CAS Write Unfinished Commit | count/s | CasWriteUnfinishedCommit | userId, clusterId, and host | Average, Maximum, and Minimum |
| Client Connection | count | ClientConnection | userId, clusterId, and host | Average, Maximum, and Minimum |
| Major GC Elapsed | ms | CmsGc | userId, clusterId, and host | Average, Maximum, and Minimum |
| Commitlog Complete Tasks | count | CommitlogCompleteTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Commitlog Pending Tasks | count | CommitlogPendingTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Compaction Active Tasks | count | CompactionActiveTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Compaction Compacted Bytes | byte | CompactionCompactedBytes | userId, clusterId, and host | Average, Maximum, and Minimum |
| Compaction Complete Tasks | count | CompactionCompleteTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Compaction Pending Tasks | count | CompactionPendingTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Counter Stage Pending Tasks | count | CounterStagePendingTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| CPU Hard Interrupt | % | CpuIrq | userId, clusterId, and host | Average, Maximum, and Minimum |
| CPU Load 1m | N/A | CpuLoad1 | userId, clusterId, and host | Average, Maximum, and Minimum |
| CPU Load 15m | N/A | CpuLoad15 | userId, clusterId, and host | Average, Maximum, and Minimum |
| CPU Load 5m | N/A | CpuLoad5 | userId, clusterId, and host | Average, Maximum, and Minimum |
| CPU Nice | % | CpuNice | userId, clusterId, and host | Average, Maximum, and Minimum |
| CPU Soft Interrupt | % | CpuSoftIrq | userId, clusterId, and host | Average, Maximum, and Minimum |
| CPU System | % | CpuSys | userId, clusterId, and host | Average, Maximum, and Minimum |
| CPU Usage | % | CpuUsage | userId, clusterId, and host | Average, Maximum, and Minimum |
| CPU User | % | CpuUser | userId, clusterId, and host | Average, Maximum, and Minimum |
| CPU Wait | % | CpuWait | userId, clusterId, and host | Average, Maximum, and Minimum |
| Data Disk Total | byte | DataDiskTotal | userId, clusterId, and host | Average, Maximum, and Minimum |
| Data Disk Usage | % | DataDiskUsage | userId, clusterId, and host | Average, Maximum, and Minimum |
| Data Disk Used | byte | DataDiskUsed | userId, clusterId, and host | Average, Maximum, and Minimum |
| Delete With Condition | count | DeleteWithCondition | userId, clusterId, and host | Average, Maximum, and Minimum |
| Disk Await | ms | DiskAwait | userId, clusterId, and host | Average, Maximum, and Minimum |
| Data Inputs | count/s | DiskInputs | userId, clusterId, and host | Average, Maximum, and Minimum |
| Disk Outputs | count/s | DiskOutputs | userId, clusterId, and host | Average, Maximum, and Minimum |
| Disk Reads | byte/s | DiskReads | userId, clusterId, and host | Average, Maximum, and Minimum |
| Disk IO %util | % | DiskUtil | userId, clusterId, and host | Average, Maximum, and Minimum |
| Disk Writes | byte/s | DiskWrites | userId, clusterId, and host | Average, Maximum, and Minimum |
| Failures | count | Failures | userId, clusterId, and host | Average, Maximum, and Minimum |
| Gc Collections | count | GcCollections | userId, clusterId, and host | Average, Maximum, and Minimum |
| Gc Max Elapsed | ms | GcMaxElapsed | userId, clusterId, and host | Average, Maximum, and Minimum |
| Gc Reclaimed | byte | GcReclaimed | userId, clusterId, and host | Average, Maximum, and Minimum |
| Gc Total Elapsed | ms | GcTotalElapsed | userId, clusterId, and host | Average, Maximum, and Minimum |
| Gossip Active Tasks | count | GossipActiveTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Gossip Pending Tasks | count | GossipPendingTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Heap Mem Usage | % | HeapMemUsage | userId, clusterId, and host | Average, Maximum, and Minimum |
| Hint Dispatcher Active Tasks | count | HintDispatcherActiveTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Hint Dispatcher Pending Tasks | count | HintDispatcherPendingTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Key Cache Hit Rate | % | KeyCacheHitRate | userId, clusterId, and host | Average, Maximum, and Minimum |
| Key Cache Hits | count/s | KeyCacheHits | userId, clusterId, and host | Average, Maximum, and Minimum |
| Key Cache Requests | count/s | KeyCacheRequests | userId, clusterId, and host | Average, Maximum, and Minimum |
| Latency | ms | Latency | userId, clusterId, and host | Average, Maximum, and Minimum |
| Mem Free | byte | MemFree | userId, clusterId, and host | Average, Maximum, and Minimum |
| Mem Usage | % | MemUsage | userId, clusterId, and host | Average, Maximum, and Minimum |
| Mem Used | byte | MemUsed | userId, clusterId, and host | Average, Maximum, and Minimum |
| Memtable Flush Writer Pending Tasks | count | MemtableFlushWriterPendingTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Memtable Post Flush Pending Tasks | count | MemtablePostFlushPendingTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Mutation Stage Pending Tasks | count | MutationStagePendingTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Native Transport Pending Tasks | count | NativeTransportPendingTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Net Input Dropped | packet/s | NetInputDropped | userId, clusterId, and host | Average, Maximum, and Minimum |
| Net Input Errors | packet/s | NetInputErrors | userId, clusterId, and host | Average, Maximum, and Minimum |
| Net Input Overruns | packet/s | NetInputOverruns | userId, clusterId, and host | Average, Maximum, and Minimum |
| Net Inputs | packet/s | NetInputs | userId, clusterId, and host | Average, Maximum, and Minimum |
| Net Output Dropped | packet/s | NetOutputDropped | userId, clusterId, and host | Average, Maximum, and Minimum |
| Net Output Errors | packet/s | NetOutputErrors | userId, clusterId, and host | Average, Maximum, and Minimum |
| Net Output Overruns | packet/s | NetOutputOverruns | userId, clusterId, and host | Average, Maximum, and Minimum |
| Net Outputs | packet/s | NetOutputs | userId, clusterId, and host | Average, Maximum, and Minimum |
| Net Reads | byte/s | NetReads | userId, clusterId, and host | Average, Maximum, and Minimum |
| Net Writes | byte/s | NetWrites | userId, clusterId, and host | Average, Maximum, and Minimum |
| Off Heap Memory | byte | OffHeapMem | userId, clusterId, and host | Average, Maximum, and Minimum |
| Minor GC Elapsed | ms | ParNewGc | userId, clusterId, and host | Average, Maximum, and Minimum |
| Parallel Scan | count | ParallelScan | userId, clusterId, and host | Average, Maximum, and Minimum |
| Put With Condition | count | PutWithCondition | userId, clusterId, and host | Average, Maximum, and Minimum |
| Query With Filter | count | QueryWithFilter | userId, clusterId, and host | Average, Maximum, and Minimum |
| Range Slice Latency | ms | RangeSliceLatency | userId, clusterId, and host | Average, Maximum, and Minimum |
| Range Slice Request | count/s | RangeSliceRequest | userId, clusterId, and host | Average, Maximum, and Minimum |
| Read Latency | ms | ReadLatency | userId, clusterId, and host | Average, Maximum, and Minimum |
| Read Latency 95th Percentile | ms | ReadLatency95 | userId, clusterId, and host | Average, Maximum, and Minimum |
| Read Latency 99th Percentile | ms | ReadLatency99 | userId, clusterId, and host | Average, Maximum, and Minimum |
| Read Repair Stage Pending Tasks | count | ReadRepairStagePendingTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Read Request | count/s | ReadRequest | userId, clusterId, and host | Average, Maximum, and Minimum |
| Read Stage Pending Tasks | count | ReadStagePendingTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| Requests | count | Request | userId, clusterId, and host | Average, Maximum, and Minimum |
| Row Cache Hit Rate | % | RowCacheHitRate | userId, clusterId, and host | Average, Maximum, and Minimum |
| Row Cache Hits | count/s | RowCacheHits | userId, clusterId, and host | Average, Maximum, and Minimum |
| Row Cache Requests | count/s | RowCacheRequests | userId, clusterId, and host | Average, Maximum, and Minimum |
| Scan With Filter | count | ScanWithFilter | userId, clusterId, and host | Average, Maximum, and Minimum |
| Secondary Index Pending Tasks | count | SecondaryIndexPendingTasks | userId, clusterId, and host | Average, Maximum, and Minimum |
| System Disk Usage | % | SysDiskUsage | userId, clusterId, and host | Average, Maximum, and Minimum |
| Timeouts | count | Timeouts | userId, clusterId, and host | Average, Maximum, and Minimum |
| Unavailables | count | Unavailables | userId, clusterId, and host | Average, Maximum, and Minimum |
| Update With Condition | count | UpdateWithCondition | userId, clusterId, and host | Average, Maximum, and Minimum |
| View Write Latency | ms | ViewWriteLatency | userId, clusterId, and host | Average, Maximum, and Minimum |
| View Write Request | count/s | ViewWriteRequest | userId, clusterId, and host | Average, Maximum, and Minimum |
| Write Latency | ms | WriteLatency | userId, clusterId, and host | Average, Maximum, and Minimum |
| Write Latency 95th Percentile | ms | WriteLatency95 | userId, clusterId, and host | Average, Maximum, and Minimum |
| Write Latency 99th Percentile | ms | WriteLatency99 | userId, clusterId, and host | Average, Maximum, and Minimum |
| Write Request | count/s | WriteRequest | userId, clusterId, and host | Average, Maximum, and Minimum |