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Use the REGEXP function to query the following statistics. This example queries transactions per second from the prior 24 hours:
sql> USE clustrix_statd;
sql> SELECT timestamp, value, name
FROM clustrix_statd.statd_history
NATURAL JOIN clustrix_statd.statd_metadata
WHERE name REGEXP 'tps$'
AND timestamp > now() - interval 1 day
ORDER BY timestamp DESC; |
Connections
| Metric Name | REGEXP | Description | Measures | Graph as |
|---|---|---|---|---|
| clustrix.stats.connections | connections | Total number of connections to the cluster | Number of connections | counter |
Diagnostic
| Metric Name | REGEXP | Description | Measures | Graph as |
|---|---|---|---|---|
| clustrix.containers.count | containers.count | Number of containers in use by |
| Xpand | Container Count | gauge | ||
| clustrix.cluster.nodes_in_quorum | nodes_in_quorum | Number of nodes currently online and in the cluster | Number of nodes online | gauge |
| clustrix.stats.bigc_value.node.nn | bigc_value.node.* | XID value through which garbage collection will clean up | BigC value by node | gauge |
| clustrix.stats.fc_wait_time.node.nn | fc_wait_time.* | Total time all queries spent waiting for flow control (inter-node communication) | Time waiting on flow control | counter |
| clustrix.stats.key_caches_updates.node.nn | key_caches_updates.node. | Number of times the PD Cache issued update keys. This statistic is sometimes useful for support. | PD Cache keys updated | counter |
| clustrix.stats.layer_merge_bytes.node.nn | layer_merge_bytes.node. | Size is bytes of layer merge operations by node | Layer merge bytes by node | counter |
| clustrix.stats.layer_merge_rows.node.nn | layer_merge_rows.node. | Number of rows merged by layer merge operations by node | Layer merge rows by node | counter |
| clustrix.stats.pdcache_fetches.node.nn | pdcache_fetches.node. | Number of times the PD Cache fetched new PDs | PD Cache fetches by node | counter |
| clustrix.stats.pdcache_loaded.node.nn | pdcache_loaded.node. | Number of times the PD Cache loaded new PDs | PD Cache loaded by node | counter |
| clustrix.stats.qpc_misses | qpc_misses | Number of times a query was missed by the QPC | Query Plan Cache, misses | counter |
| clustrix.stats.qpc_recompiles | qpc_recompiles | Number of times the QPC recompiled queries | Query Plan Cache, recompiles | counter |
| clustrix.stats.queries_not_using_indexes | queries_not_using_indexes | Number of queries on the cluster not using any index | Queries not using indexes | counter |
clustrix.stats.walltime_(read|write)_us | walltime_(read|write)_us | Total wall time (elapsed) of read or write queries | Wall time of read or write queries | counter |
Monitoring
| Metric Name | REGEXP | Description | Measures | Graph as |
|---|---|---|---|---|
| clustrix.rebalancer_(reprotects|deletes|rebalance| redistributes|request|reranks|splits) | rebalancer_(reprotects|deletes|rebalance| redistributes|request|reranks|splits)$' | Metrics for various Rebalancer actions | Various Rebalancer actions. | counter |
| clustrix.cluster.total_nodes | cluster.total_nodes | The total number of nodes configured for your cluster (not just in quorum) | Total number of nodes | gauge |
Networking
| Metric Name | REGEXP | Description | Measures | Graph as |
|---|---|---|---|---|
clustrix.io.network.latency_ms.avg.nodenn.(network interface) | latency_ms.avg.node. | Network latency average per node | Network Latency avg by node | gauge |
| clustrix.io.network.latency_ms.(min|max|avg) | latency_ms....$ | Network latency min/max/avg | Network latency min/max/avg | gauge |
Performance
| Metric Name | REGEXP | Description | Measures | Graph as |
|---|---|---|---|---|
clustrix.activity.core0.node.nn | core0.node.* | TIL CPU core-0 utilization by node | Til CPU Core-0 by node | gauge |
clustrix.activity.til_avg | til_avg$ | Average core utilization for the cluster, excluding core-0 | Average Til CPU | gauge |
| clustrix.activity.til_avg.node.nn | til_avg.node.* | Average TIL core (non core-0) utilization per node in a cluster | Average Til CPU by node | gauge |
| clustrix.activity.til_(min|max|avg).node.nn | til_(min|max|avg).node. | TIL CPU core (non core-0) utilization min/max/avg | Til CPU min/max/avg by node | gauge |
clustrix.activity.til_max | til_max$ | Max core utilization for the cluster, excluding core-0 | Max Til CPU | gauge |
| clustrix.activity.til_max.node.nn | til_max.node.* | Average TIL core (non core-0) utilization per node in a cluster | Max Til CPU by node | gauge |
clustrix.cpu.load_(min|max) | cpu.load_...$ | CPU Core min/max database utilization only | Database CPU min/max | gauge |
| clustrix.cpu.load.node.nn.cpu.0 | load.node.*.cpu.0 | CPU Core-0 by node database utilization only | Database CPU Core only core-0 by node | gauge |
| clustrix.cpu.load.node.nn.cpu.nn | load.node.*.cpu.[^0]\d* | CPU Cores excluding core-0 by node database utilization only | Database CPU core excluding core-0 by node | gauge |
| clustrix.lockman.wait_ms.(min|max|avg) | lockman.wait_ms....$ | Total time all queries spent waiting on locks | Time waiting on query locks | gauge |
| clustrix.qps | qps$ | Cluster wide Queries per second | Cluster QPS | gauge |
| clustrix.response_time.read_us | response_time.read_us | Cluster query read latency, number of queries divided by runtime | Cluster read latency | gauge |
| clustrix.response_time.write_us | response_time.write_us | Cluster query write latency, number of queries divided by runtime | Cluster write latency | gauge |
| clustrix.stats.executing_sessions | executing_sessions | The number of sessions currently executing | Sessions currently executing | gauge |
| clustrix.stats.qps_total.node.nn | qps_total.node | Queries per second by node | QPS by node | counter |
| clustrix.stats.tm_cpu_waittime_us | tm_cpu_waittime | The total amount of time queries spent waiting due to the fair scheduler | Fair Scheduler wait time | counter |
| clustrix.stats.tps_total.node.nn | tps_total.node | Transactions per second by node | TPS by node | counter |
| clustrix.tps | tps$ | Cluster wide Transactions per second | Cluster TPS | gauge |
Queries
| Metric Name | REGEXP | Description | Measures | Graph as |
|---|---|---|---|---|
| clustrix.stats.Com_(delete|insert|select|update) | Com_(delete|insert|select|update)$ | Number of queries separated by query type | Queries by type | counter |
| clustrix.stats.Com_(delete|insert|select|update)_us | Com_(delete|insert|select|update)_us | Amount of run time by query type | Time per query type | gauge |
| clustrix.stats.runtime_read_us | runtime_read_us | Total runtime of read queries | Runtime of read queries | counter |
| clustrix.stats.runtime_write_us | runtime_write_us | Total runtime of write queries | Runtime of write queries | counter |
Replication
| Metric Name | REGEXP | Description | Measures | Graph as |
|---|---|---|---|---|
| clustrix.replication.slave.relay_log_bytes.(slave) | relay_log_bytes[^_] | Size in bytes of the relay logs for the replication slave | Relay log bytes for all slaves | gauge |
| clustrix.replication.slave.bytes_read.(slave) | slave.bytes_read | Bytes read by the replication slave | Bytes read by slave | counter |
| clustrix.replication.slave.events_read.(slave) | events_read | Number of events read by the replication slave | Events read by slave | counter |
| clustrix.replication.slave.seconds_behind_master.(slave) | seconds_behind_master | Seconds behind master value for all replication slaves | Slave seconds behind master | gauge |
Rows
| Metric Name | REGEXP | Description | Measures | Graph as |
|---|---|---|---|---|
clustrix.containers.rows_read.node.nn | rows_read.node..$ | Number of rows read by node at the container level | Rows read by node, container | counter |
clustrix.containers.rows_written.node.nn | rows_written.node..$ | Number of rows written by node at the container level | Rows written by node, container | counter |
| clustrix.containers.rows_(deleted|inserted|replaced) | rows_(deleted|inserted|replaced)$ | Number of rows deleted, inserted and updated at the container level | Rows, deleted, inserted, updated | counter |
| clustrix.containers.rows_(read|written) | containers.rows_(read|written)$ | Number of rows read and written at the container level | Rows read and written, container | counter |
clustrix.containers.rows_deleted | rows_deleted$ | Number of rows deletes at the container level | Rows deleted, container level | counter |
clustrix.containers.rows_inserted | rows_inserted$ | Number of rows inserted at the container level | Rows inserted, container level | counter |
clustrix.containers.rows_read | containers.rows_read$ | Number of rows read at the container level | Rows read, container level | counter |
clustrix.containers.rows_replaced | rows_replaced$ | Number of rows updated at the container level | Rows updated, container level | counter |
clustrix.containers.rows_written | rows_written$ | Number of rows written at the container level | Rows written, container level | counter |
| clustrix.stats.tm_rows_output | tm_rows_output | Number of rows written by queries | Rows written, transaction manager | counter |
| clustrix.stats.tm_rows_read | tm_rows_read | Number of rows read by queries | Rows read, transaction manager | counter |
Storage
| Metric Name | REGEXP | Description | Measures | Graph as |
|---|---|---|---|---|
| clustrix.capacity.disks.(avg|max|min)_used_percent | [avg|max|min]_used_percent | The min/max/avg disk capacity used | Percentage of disks in use | gauge |
clustrix.io.disk.bytes_read.node.nn.disk.(disk segment) | disk.bytes_read.node. | Not applicable for virtual environments (i.e. i3s). | Bytes read at the kernel level | counter |
| clustrix.io.disk.bytes_written.node.nn.disk.(disk segment) | disk.bytes_written.node. | Not applicable for virtual environments (i.e. i3s). | Bytes written at the kernel level | counter |
| clustrix.io.disk.pct_utilization.node.nn.disk.(disk segment) | disk.pct_utilization.node | Disk utilization metric for individual physical disks hosting the vdev file (e.g. through an md RAID device) | Disk utilization | gauge |
| clustrix.io.disk.read_latency_ms.node.nn.disk.(disk segment) | read_latency_ms.node. | Average read latency from IO time over the same period | Storage read latency, kernel level by node | gauge |
| clustrix.io.disk.write_latency_ms.node.nn.disk.(disk segment) | write_latency_ms.node. | Average write latency from IO time over the same period | Storage write latency, kernel level by node | gauge |
| clustrix.io.vdevs.bytes_read | bytes_read$ | Device1 bytes read, cluster level | Device1 bytes read, cluster level | counter |
| clustrix.io.vdev.bytes_read.node.nn.vdev.3 | bytes_read.node.*.vdev.3 | Device1 bytes read by node | Device1 bytes read by node | counter |
| clustrix.io.vdevs.bytes_read_per_sec | bytes_read_per_sec | Device1 bytes read per second | Device1 bytes read per second | gauge |
| clustrix.io.vdevs.bytes_writtten | bytes_written$ | Device1 bytes written, cluster level | Device1 bytes written, cluster level | counter |
| clustrix.io.vdev.bytes_written.node.nn.vdev.3 | bytes_written.node.*.vdev.3 | Device1 bytes written by node | Device1 bytes written by node | counter |
| clustrix.io.vdevs.bytes_written_per_sec | bytes_written_per_sec | Device1 bytes written per second | Device1 bytes written per second | gauge |
| clustrix.io.vdev.read_latency_us.node.nn.vdev.3 | read_latency_us.node.*.vdev.3 | Device1 read latency by node | Device1 read latency by node | gauge |
| clustrix.io.vdev.sync_latency_us.node.nn.vdev.3 | sync_latency_us.node.*.vdev.3 | Device1 sync latency by node | Device1 sync latency by node | gauge |
| clustrix.io.vdev.write_latency_us.node.nn.vdev.3 | write_latency_us.node.*.vdev.3 | Device1 write latency by node | Device1 write latency by node | gauge |
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