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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 5.2 to 5.4

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ScyllaDB Metric Update - Scylla 5.2 to 5.4¶

Scylla 5.4 Dashboards are available as part of the latest Scylla Monitoring Stack.

The following metrics are new in ScyllaDB 5.4¶

Metric

Description

scylla_cache_rows_compacted

Total amount of attempts to compact expired rows during read.

scylla_cache_rows_compacted_away

Total amount of compacted and removed rows during read.

scylla_cql_authorized_prepared_statements_privileged_entries_evictions_on_size

Counts the number of evictions of prepared statements from the authorized prepared statements cache after they have been used more than once.

scylla_cql_maximum_replication_factor_fail_violations

Counts the number of maximum_replication_factor_fail_threshold guardrail violations, i.e., attempts to create a keyspace with RF on one of the DCs above the set guardrail.

scylla_cql_maximum_replication_factor_warn_violations

Counts the number of maximum_replication_factor_warn_threshold guardrail violations, i.e., attempts to create a keyspace with RF on one of the DCs above the set guardrail.

scylla_cql_minimum_replication_factor_fail_violations

Counts the number of minimum_replication_factor_fail_threshold guardrail violations, i.e., attempts to create a keyspace with RF on one of the DCs below the set guardrail.

scylla_cql_minimum_replication_factor_warn_violations

Counts the number of minimum_replication_factor_warn_threshold guardrail violations, i.e., attempts to create a keyspace with RF on one of the DCs below the set guardrail.

scylla_hints_for_views_manager_send_errors

Number of unexpected errors during sending. Sending will be retried later.

scylla_hints_manager_send_errors

Number of unexpected errors during sending. Sending will be retried later.

scylla_reactor_stalls

A histogram of reactor stall durations.

scylla_storage_proxy_coordinator_background_read_repairs

Number of background read repairs.

scylla_storage_proxy_coordinator_background_writes_failed

Number of write requests that failed after CL was reached.

scylla_storage_proxy_coordinator_canceled_read_repairs

Number of global read repairs canceled due to a concurrent write.

scylla_storage_proxy_coordinator_cas_dropped_prune

How many times a coordinator did not perform prune after cas.

scylla_storage_proxy_coordinator_cas_failed_read_round_optimization

CAS read rounds issued only if the previous value is missing on some replica.

scylla_storage_proxy_coordinator_cas_read_contention

How many contended reads were encountered.

scylla_storage_proxy_coordinator_cas_read_latency

Transactional read latency histogram.

scylla_storage_proxy_coordinator_cas_read_latency_summary

CAS read latency summary.

scylla_storage_proxy_coordinator_cas_read_timeouts

Number of transactional read requests failed due to a timeout.

scylla_storage_proxy_coordinator_cas_read_unavailable

Number of transactional read requests failed due to an “unavailable” error.

scylla_storage_proxy_coordinator_cas_read_unfinished_commit

Number of transaction commit attempts that occurred on read.

scylla_storage_proxy_coordinator_cas_total_operations

Number of total paxos operations executed (reads and writes).

scylla_storage_proxy_coordinator_cas_write_condition_not_met

Number of transaction preconditions that did not match current values.

scylla_storage_proxy_coordinator_cas_write_contention

How many contended writes were encountered.

scylla_storage_proxy_coordinator_cas_write_latency

Transactional write latency histogram.

scylla_storage_proxy_coordinator_cas_write_latency_summary

CAS write latency summary.

scylla_storage_proxy_coordinator_cas_write_timeout_due_to_uncertainty

How many times write timeout was reported because of uncertainty in the result.

scylla_storage_proxy_coordinator_cas_write_timeouts

Number of transactional write requests failed due to a timeout.

scylla_storage_proxy_coordinator_cas_write_unavailable

Number of transactional write requests failed due to an “unavailable” error.

scylla_storage_proxy_coordinator_cas_write_unfinished_commit

Number of transaction commit attempts that occurred on write.

scylla_storage_proxy_coordinator_foreground_read_repairs

Number of foreground read repairs.

scylla_storage_proxy_coordinator_range_timeouts

Number of range read operations failed due to a timeout.

scylla_storage_proxy_coordinator_range_unavailable

Number of range read operations failed due to an “unavailable” error.

scylla_storage_proxy_coordinator_read_rate_limited

Number of read requests that were rejected by replicas because the rate limit for the partition was reached.

scylla_storage_proxy_coordinator_read_retries

Number of read retry attempts.

scylla_storage_proxy_coordinator_read_timeouts

Number of read request failed due to a timeout.

scylla_storage_proxy_coordinator_read_unavailable

Number read requests failed due to an “unavailable” error.

scylla_storage_proxy_coordinator_reads_coordinator_outside_replica_set

Number of CQL read requests which arrived to a non-replica and had to be forwarded to a replica.

scylla_storage_proxy_coordinator_speculative_data_reads

Number of speculative data read requests that were sent.

scylla_storage_proxy_coordinator_speculative_digest_reads

Number of speculative digest read requests that were sent.

scylla_storage_proxy_coordinator_throttled_writes

Number of throttled write requests.

scylla_storage_proxy_coordinator_write_rate_limited

Number of write requests which were rejected by replicas because rate limit for the partition was reached.

scylla_storage_proxy_coordinator_write_timeouts

Number of write requests failed due to a timeout.

scylla_storage_proxy_coordinator_write_unavailable

Number of write requests failed due to an “unavailable” error.

scylla_storage_proxy_coordinator_writes_coordinator_outside_replica_set

Number of CQL write requests that arrived to a non-replica and had to be forwarded to a replica.

scylla_storage_proxy_coordinator_writes_failed_due_to_too_many_in_flight_hints

Number of CQL write requests that failed because the hinted handoff mechanism is overloaded and cannot store any more in-flight hints.

scylla_storage_proxy_replica_cas_dropped_prune

How many times a coordinator did not perform prune after cas.

scylla_storage_proxy_replica_cross_shard_ops

Number of operations that crossed a shard boundary.

scylla_storage_proxy_replica_forwarded_mutations

Number of mutations forwarded to other replica nodes.

scylla_storage_proxy_replica_forwarding_errors

Number of errors during forwarding mutations to other replica nodes.

scylla_storage_proxy_replica_reads

Number of remote data read requests this node received.

scylla_storage_proxy_replica_received_counter_updates

Number of counter updates received by this node acting as an update leader.

scylla_storage_proxy_replica_received_mutations

Number of mutations received by a replica node.

scylla_transport_cql_request_bytes

Counts the total number of received bytes in CQL messages of a specific kind.

scylla_transport_cql_requests_count

Counts the total number of CQL messages of a specific kind.

scylla_transport_cql_response_bytes

Counts the total number of sent response bytes for CQL requests of a specific kind.

The following metrics are replaced in ScyllaDB 5.4¶

  • scylla_transport_auth_responses

  • scylla_transport_batch_requests

  • scylla_transport_execute_requests

  • scylla_transport_options_requests

  • scylla_transport_prepare_requests

  • scylla_transport_query_requests

  • scylla_transport_register_requests

  • scylla_transport_startups

The above metrics are grouped under the single metric scylla_transport_cql_requests_count``metric with the ``kind label to differentiate between them.

Additional details about them are provided by the scylla_transport_cql_request_bytes and scylla_transport_cql_response_bytes metrics.

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    • The following metrics are new in ScyllaDB 5.4
    • The following metrics are replaced in ScyllaDB 5.4
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