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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

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

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

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

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