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ScyllaDB Docs ScyllaDB Open Source ScyllaDB for Administrators Upgrade ScyllaDB Upgrade ScyllaDB Open Source Upgrade Guide - ScyllaDB 5.1 to 5.2 ScyllaDB Metric Update - Scylla 5.1 to 5.2

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ScyllaDB Metric Update - Scylla 5.1 to 5.2¶

Scylla 5.2 Dashboards are available as part of the latest Scylla Monitoring Stack.

The following metrics are new in ScyllaDB 5.2¶

Metric

Description

scylla_database_disk_reads

Holds the number of currently active disk read operations.

scylla_database_sstables_read

Holds the number of currently read sstables.

scylla_memory_malloc_failed

Total count of failed memory allocations

scylla_raft_group0_status

status of the raft group, 0 - disabled, 1 - normal, 2 - aborted

scylla_storage_proxy_coordinator_cas_read_latency_summary

CAS read latency summary

scylla_storage_proxy_coordinator_cas_write_latency_summary

CAS write latency summary

scylla_storage_proxy_coordinator_read_latency_summary

Read latency summary

scylla_storage_proxy_coordinator_write_latency_summary

Write latency summary

scylla_streaming_finished_percentage

Finished percentage of node operation on this shard

scylla_view_update_generator_sstables_pending_work

Number of bytes remaining to be processed from SSTables for view updates

The following metrics are renamed in ScyllaDB 5.2¶

5.1

5.2

scylla_database_active_reads_memory_consumption

scylla_database_reads_memory_consumption

scylla_memory_regular_virtual_dirty_bytes

scylla_memory_regular_unspooled_dirty_bytes

scylla_memory_system_virtual_dirty_bytes

scylla_memory_system_unspooled_dirty_bytes

scylla_memory_virtual_dirty_bytes

scylla_memory_unspooled_dirty_bytes

Reporting Latencies¶

ScyllaDB 5.2 comes with a new approach to reporting latencies, which are reported using histograms and summaries:

  • Histograms are reported per node.

  • Summaries are reported per shard and contain P50, P95, and P99 latency.

For more information on Prometheus histograms and summaries, see the Prometheus documentation.

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    • The following metrics are new in ScyllaDB 5.2
    • The following metrics are renamed in ScyllaDB 5.2
    • Reporting Latencies
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