Names of metrics | Description |
xengine_rows_deleted | The number of deleted rows. |
xengine_rows_inserted | The number of inserted rows. |
xengine_rows_read | The number of read rows. |
xengine_rows_updated | The number of updated rows. |
xengine_system_rows_deleted | The number of deletion operations on a system table that uses X-Engine. |
xengine_system_rows_inserted | The number of insert operations on a system table that uses X-Engine. |
xengine_system_rows_read | The number of read operations on a system table that uses X-Engine. |
xengine_system_rows_updated | The number of updates on a system table that uses X-Engine. |
xengine_block_cache_add | The number of add operations on the block cache. |
xengine_block_cache_data_hit | The number of hits in read data blocks. |
xengine_block_cache_data_miss | The number of misses in read data blocks. |
xengine_block_cache_filter_hit | The number of hits in filter blocks. |
xengine_block_cache_filter_miss | The number of misses in filter blocks. |
xengine_block_cache_hit | The number of hits in the block cache. The value of this metric is calculated by using the following formula: The value of this metric= The value of the data_hit metric + The value of index_hit metric. |
xengine_block_cache_index_hit | The number of hits in index blocks. |
xengine_block_cache_index_miss | The number of misses in index blocks. |
xengine_block_cache_miss | The number of misses in the block cache. The value of this metric is calculated by using the following formula: The value of this metric= The value of the data_miss metric + The value of the index_miss metric. |
xengine_block_cachecompressed_miss | The number of misses in the compressed block cache. |
xengine_bytes_read | The number of bytes that are read from a physical disk. |
xengine_bytes_written | The number of bytes that are written in a physical disk. |
xengine_memtable_hit | The number of hits in memory tables. |
xengine_memtable_miss | The number of misses in memory tables. |
xengine_number_block_not_compressed | The number of uncompressed blocks. |
xengine_number_keys_read | The number of times that keys are read. |
xengine_number_keys_updated | The number of times that keys are updated. |
xengine_number_keys_written | The number of times that keys are written. |
xengine_number_superversion_acquires | The number of times that a superversion is applied for references. |
xengine_number_superversion_cleanups | The number of times that a superversion is cleared. If Superversion is not referenced, it is cleared. |
xengine_number_superversion_releases | The number of times that the referenced Superversion is released. If Superversion is not referenced, it is cleared. |
xengine_snapshot_conflict_errors | The number of times that an error is returned due to snapshot version conflicts at the RR isolation level. |
xengine_wal_bytes | The size of redo logs that are written into the disk. Unit: bytes. |
xengine_wal_group_syncs | The number of times that GroupCommit is executed by redo logs. |
xengine_wal_synced | The number of times that redo logs are synchronized. |
xengine_write_other | The number of times that a follower commits transactions in a transaction pipeline. |
xengine_write_self | The number of times that a leader commits transactions in a transaction pipeline. |
xengine_write_wal | The number of times that redo logs are written. |