Cassandra インテグレーションのメトリクス
Cassandra の監視に使う Datadog の公式インテグレーションです。収集するメトリクスは 71 件あります。
公式の紹介文 (英語)
Track cluster performance, capacity, overall health, and much more.
種別の内訳
- gauge (その時点の値): 70 件
- count (集計間隔内の発生回数): 1 件
メトリクスの一覧
説明は公式の定義の英文をそのまま載せています。
| メトリクス | 種別 | 単位 |
|---|---|---|
cassandra.The number of tasks that the thread pool is actively executing. | gauge | task |
cassandra.The ratio of Bloom filter false positives to total checks. | gauge | fraction |
cassandra.The amount of data that was flushed since (re)start. | gauge | byte |
cassandra.The latency of paxos commit round - p75. | gauge | microsecond |
cassandra.The latency of paxos commit round - p95. | gauge | microsecond |
cassandra.The number of paxos commit round per second. | gauge | operation/ |
cassandra.The latency of paxos prepare round - p75. | gauge | microsecond |
cassandra.The latency of paxos prepare round - p95. | gauge | microsecond |
cassandra.The number of paxos prepare round per second. | gauge | operation/ |
cassandra.The latency of paxos propose round - p75. | gauge | microsecond |
cassandra.The latency of paxos propose round - p95. | gauge | microsecond |
cassandra.The number of paxos propose round per second. | gauge | operation/ |
cassandra.The column update time delta - p75. | gauge | microsecond |
cassandra.The column update time delta - p95. | gauge | microsecond |
cassandra.The column update time delta - min. | gauge | microsecond |
cassandra.The amount of data that was compacted since (re)start. | gauge | byte |
cassandra.The compression ratio for all SSTables. /!\ A low value means a high compression contrary to what the name suggests. Formula used is: 'size of the compressed SSTable / size of original' | gauge | fraction |
cassandra.The number of currently blocked tasks for the thread pool. | gauge | task |
cassandra.The number of currently blocked tasks for the thread pool. | gauge | task |
cassandra.The estimate of the droppable tombstone ratio. | gauge | fraction |
cassandra.The tasks dropped during execution for the thread pool. | gauge | thread |
cassandra.The number of exceptions thrown from 'Storage' metrics. | gauge | error |
cassandra.The key cache hit rate. | gauge | fraction |
cassandra.The client request latency - p75. | gauge | microsecond |
cassandra.The client request latency - p95. | gauge | microsecond |
cassandra.The number of client requests. | gauge | request/ |
cassandra.The disk space used by "live" SSTables (only counts in use files). | gauge | byte |
cassandra.Number of "live" (in use) SSTables. | gauge | file |
cassandra.The disk space used by live data on a node. | gauge | byte |
cassandra.The size of the largest compacted partition. | gauge | byte |
cassandra.The size of the largest compacted row. | gauge | byte |
cassandra.The average size of compacted partition. | gauge | byte |
cassandra.The average size of compacted rows. | gauge | byte |
cassandra.The number of unhealthy nodes in the cluster. They represent each individual node's view of the cluster and thus should not be summed across reporting nodes. | gauge | node |
cassandra.The number of healthy nodes in the cluster. They represent each individual node's view of the cluster and thus should not be summed across reporting nodes. | gauge | node |
cassandra.The number of pending compactions. | gauge | task |
cassandra.The number of pending flushes. | gauge | flush |
cassandra.The number of pending tasks for the thread pool. | gauge | task |
cassandra.The local range request latency - p75. | gauge | microsecond |
cassandra.The local range request latency - p95. | gauge | microsecond |
cassandra.The number of local range requests. | gauge | request/ |
cassandra.The local read latency - p75. | gauge | microsecond |
cassandra.The local read latency - p95. | gauge | microsecond |
cassandra.The local read latency - p99. | gauge | microsecond |
cassandra.The number of local read requests. | gauge | read/ |
cassandra.The number of row cache hits. | gauge | hit |
cassandra.The number of row cache hits that do not satisfy the query filter and went to disk. | gauge | hit |
cassandra.The number of table row cache misses. | gauge | miss |
cassandra.The disk space truly used by snapshots. | gauge | byte |
cassandra.The number of SSTable data files accessed per read - p75. | gauge | file/ |
cassandra.The number of SSTable data files accessed per read - p95. | gauge | file/ |
cassandra.Count of requests not acknowledged within configurable timeout window. | gauge | timeout |
cassandra.Recent timeout rate, as an exponentially weighted moving average over a one-minute interval. | gauge | timeout/ |
cassandra.Number of tombstones scanned per read - p75. | gauge | record/ |
cassandra.Number of tombstones scanned per read - p95. | gauge | record/ |
cassandra.Total blocked tasks | gauge | task |
cassandra.Total count of blocked tasks | count | task |
cassandra.The size used on disk by commit logs. | gauge | byte |
cassandra.Total disk space used by SSTables including obsolete ones waiting to be GC'd. | gauge | byte |
cassandra.The time taken acquiring a partition lock for materialized view updates - p75. | gauge | microsecond |
cassandra.The time taken acquiring a partition lock for materialized view updates - p95. | gauge | microsecond |
cassandra.The number of requests to acquire a partition lock for materialized view updates. | gauge | request/ |
cassandra.The time taken during the local read of a materialized view update - p75. | gauge | microsecond |
cassandra.The time taken during the local read of a materialized view update - p95. | gauge | microsecond |
cassandra.The number of local reads for materialized view updates. | gauge | request/ |
cassandra.The time spent waiting for free memtable space either on- or off-heap - p75. | gauge | microsecond |
cassandra.The time spent waiting for free memtable space either on- or off-heap - p95. | gauge | microsecond |
cassandra.The local write latency - p75. | gauge | microsecond |
cassandra.The local write latency - p95. | gauge | microsecond |
cassandra.The local write latency - p99. | gauge | microsecond |
cassandra.The number of local write requests. | gauge | write/ |
公式ドキュメント
メトリクスの名前と説明は Datadog の公式インテグレーションの定義 (Copyright Datadog, Inc.・BSD-3-Clause) を英文のまま載せています。利用条件の全文は サイトについてにあります。