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ScyllaDB Enterprise Metric Update - ScyllaDB Enterprise 2024.1 to 2024.2¶
ScyllaDB Enterprise 2024.2 Dashboards are available as part of the latest Scylla Monitoring Stack.
New Metrics¶
The following metrics are new in ScyllaDB Enterprise 2024.2 compared to 2024.1:
Metric |
Description |
|---|---|
scylla_cql_replication_strategy_fail_list_violations |
Counts the number of replication_strategy_fail_list guardrail violations, i.e. attempts to set a forbidden replication strategy in a keyspace via CREATE/ALTER KEYSPACE. |
scylla_cql_replication_strategy_warn_list_violations |
Counts the number of replication_strategy_warn_list guardrail violations, i.e. attempts to set a discouraged replication strategy in a keyspace via CREATE/ALTER KEYSPACE. |
scylla_reactor_fstream_read_bytes |
Counts bytes read from disk file streams. A high rate indicates high disk activity. Divide by fstream_reads to determine the average read size. |
scylla_reactor_fstream_read_bytes_blocked |
Counts the number of bytes read from disk that could not be satisfied from read-ahead buffers and had to block. Indicates short streams or incorrect read ahead configuration. |
scylla_reactor_fstream_reads |
Counts reads from disk file streams. A high rate indicates high disk activity. Contrast with other fstream_read* counters to locate bottlenecks. |
scylla_reactor_fstream_reads_ahead_bytes_discarded |
Counts the number of buffered bytes that were read ahead of time and were discarded because they were not needed, wasting disk bandwidth. Indicates over-eager read ahead configuration. |
scylla_reactor_fstream_reads_aheads_discarded |
Counts the number of times a buffer that was read ahead of time and was discarded because it was not needed, wasting disk bandwidth. Indicates over-eager read ahead configuration. |
scylla_reactor_fstream_reads_blocked |
Counts the number of times a disk read could not be satisfied from read-ahead buffers, and had to block. Indicates short streams or incorrect read ahead configuration. |
scylla_rpc_client_count |
Total number of clients. |
scylla_rpc_client_exception_received |
Total number of exceptional responses received. |
scylla_rpc_client_pending |
Number of queued outbound messages. |
scylla_rpc_client_replied |
Total number of responses received. |
scylla_rpc_client_sent_messages |
Total number of messages sent. |
scylla_rpc_client_timeout |
Total number of timeout responses. |
scylla_rpc_client_wait_reply |
Number of replies awaited. |
scylla_storage_proxy_coordinator_mv_flow_control_delay_total |
Total delay (in microseconds) added for MV flow control to delay the response sent to finished writes. Divide it by throttled_base_writes_total to find the average delay. |
scylla_storage_proxy_coordinator_throttled_base_writes_total |
Number of throttled base replica write requests, a throttled write is one whose response was delayed; see mv_flow_control_delay_total. |