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Michael Schurter updated CASSANDRA-11404: ----------------------------------------- Description: Was bemoaning the lack of documentation for Cassandra's extensive metrics in IRC and [~thobbs] told me to file a ticket: I started stealing comments from {{src/java/org/apache/cassandra/metrics/TableMetrics.java}}: ||mbean||description|| | {{ColumnFamily.$keyspace.$table.MemtableOnHeapSize}} | Total amount of data stored in the memtable that resides on-heap, including column related overhead and partitions overwritten. | | {{ColumnFamily.$keyspace.$table.MemtableOffHeapSize}} | Total amount of data stored in the memtable that resides off-heap, including column related overhead and partitions overwritten. | | {{ColumnFamily.$keyspace.$table.CompressionRatio}} | Current compression ratio for all SSTables | | {{ColumnFamily.$keyspace.$table.Estimated{Partition,Row}SizeHistogram}} | Histogram of estimated partition size (in bytes). | | {{ColumnFamily.$keyspace.$table.ReadLatency}} | Local read metrics. | | {{ColumnFamily.$keyspace.$table.WriteLatency}} | Local Write metrics. | | {{ColumnFamily.$keyspace.$table.MemstableLiveDataSize}} | Total amount of live data stored in the memtable, excluding any data structure overhead. | | {{ColumnFamily.$keyspace.$table.CoordinatorReadLatency}} | Read request latency from the perspective of the coordinating node | | {{ColumnFamily.$keyspace.$table.CoordinatorScanLatency}} | ??? | was: Was bemoaning the lack of documentation for Cassandra's extensive metrics in IRC and [~thobbs] told me to file a ticket: I started stealing comments from {{src/java/org/apache/cassandra/metrics/TableMetrics.java}}: ||mbean||description|| | {{ColumnFamily.$keyspace.$table.MemtableOnHeapSize}} | Total amount of data stored in the memtable that resides on-heap, including column related overhead and partitions overwritten. | | {{ColumnFamily.$keyspace.$table.MemtableOffHeapSize}} | Total amount of data stored in the memtable that resides off-heap, including column related overhead and partitions overwritten. | | {{ColumnFamily.$keyspace.$table.CompressionRatio}} | Current compression ratio for all SSTables | | {{ColumnFamily.$keyspace.$table.Estimated{Partition,Row}SizeHistogram}} | Histogram of estimated partition size (in bytes). | | {{ColumnFamily.$keyspace.$table.ReadLatency}} | Local read metrics. | | {{ColumnFamily.$keyspace.$table.WriteLatency}} | Local Write metrics. | | {{ColumnFamily.$keyspace.$table.MemstableLiveDataSize}} | Total amount of live data stored in the memtable, excluding any data structure overhead. | | {{ColumnFamily.$keyspace.$table.CoordinatorReadLatency}} | Read request latency from the perspective of the coordinating node | | {{ColumnFamily.$keyspace.$table.CoordinatorScanLatency}} | ??? | > Document metrics mbeans org.apache.cassandra.metrics > ---------------------------------------------------- > > Key: CASSANDRA-11404 > URL: https://issues.apache.org/jira/browse/CASSANDRA-11404 > Project: Cassandra > Issue Type: Improvement > Components: Documentation and Website > Reporter: Michael Schurter > > Was bemoaning the lack of documentation for Cassandra's extensive metrics in > IRC and [~thobbs] told me to file a ticket: > I started stealing comments from > {{src/java/org/apache/cassandra/metrics/TableMetrics.java}}: > ||mbean||description|| > | {{ColumnFamily.$keyspace.$table.MemtableOnHeapSize}} | Total amount of data > stored in the memtable that resides on-heap, including column related > overhead and partitions overwritten. > | > | {{ColumnFamily.$keyspace.$table.MemtableOffHeapSize}} | Total amount of > data stored in the memtable that resides off-heap, including column related > overhead and partitions overwritten. | > | {{ColumnFamily.$keyspace.$table.CompressionRatio}} | Current compression > ratio for all SSTables | > | {{ColumnFamily.$keyspace.$table.Estimated{Partition,Row}SizeHistogram}} | > Histogram of estimated partition size (in bytes). | > | {{ColumnFamily.$keyspace.$table.ReadLatency}} | Local read metrics. | > | {{ColumnFamily.$keyspace.$table.WriteLatency}} | Local Write metrics. | > | {{ColumnFamily.$keyspace.$table.MemstableLiveDataSize}} | Total amount of > live data stored in the memtable, excluding any data structure overhead. | > | {{ColumnFamily.$keyspace.$table.CoordinatorReadLatency}} | Read request > latency from the perspective of the coordinating node | > | {{ColumnFamily.$keyspace.$table.CoordinatorScanLatency}} | ??? | -- This message was sent by Atlassian JIRA (v6.3.4#6332)