Kudu Replica Metrics
In addition to these base metrics, many aggregate metrics are available.
If an entity type has parents defined, you can formulate all possible
aggregate metrics using the formula
base_metric_across_parents.
In addition, metrics for aggregate totals can be formed by adding the prefix
total_ to the front of the metric name.
Use the type-ahead feature in the Cloudera Manager chart browser to find the exact aggregate metric name, in case the plural form does not end in "s".
For example, the following metric names may be valid for Kudu Replica:
-
kudu_all_transactions_inflight_across_clusters -
total_kudu_all_transactions_inflight_across_clusters
Some metrics, such as alerts_rate, apply to nearly every metric context. Others only apply to a
certain service or role.
| Metric Name | Description | Unit | Parents | CDH Version |
|---|---|---|---|---|
| kudu_all_transactions_inflight | Number of transactions currently in-flight, including any type. | transactions | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_alter_schema_transactions_inflight | Number of alter schema transactions currently in-flight | transactions | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_average_diskrowset_height | Average height of the diskrowsets in this tablet replica. The larger the average height, the more uncompacted the tablet replica is. | message.units.units | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_bloom_lookups_per_op_rate | Tracks the number of bloom filter lookups performed by each operation. A single operation may perform several bloom filter lookups if the tablet is not fully compacted. High frequency of high values may indicate that compaction is falling behind. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_bloom_lookups_per_op_sum_rate | Tracks the number of bloom filter lookups performed by each operation. A single operation may perform several bloom filter lookups if the tablet is not fully compacted. High frequency of high values may indicate that compaction is falling behind. This is the total sum of recorded samples. | message.units.probes per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_bloom_lookups_rate | Number of times a bloom filter was consulted | message.units.probes per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_bytes_flushed_rate | Amount of data that has been flushed to disk by this tablet. | bytes per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_commit_wait_duration_rate | Time spent waiting for COMMIT_WAIT external consistency writes for this tablet. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_commit_wait_duration_sum_rate | Time spent waiting for COMMIT_WAIT external consistency writes for this tablet. This is the total sum of recorded samples. | message.units.microseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_compact_rs_duration_rate | Time spent compacting RowSets. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_compact_rs_duration_sum_rate | Time spent compacting RowSets. This is the total sum of recorded samples. | message.units.milliseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_compact_rs_running | Number of RowSet compactions currently running. | operations | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_deleted_rowset_estimated_retained_bytes | Estimated bytes of deletable data in deleted rowsets for this tablet. | bytes | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_deleted_rowset_gc_bytes_deleted_rate | Number of bytes deleted by garbage-collecting deleted rowsets. | bytes per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_deleted_rowset_gc_duration_rate | Time spent running the maintenance operation to GC deleted rowsets. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_deleted_rowset_gc_duration_sum_rate | Time spent running the maintenance operation to GC deleted rowsets. This is the total sum of recorded samples. | message.units.milliseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_deleted_rowset_gc_running | Number of deleted rowset GC operations currently running. | operations | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_delta_file_lookups_per_op_rate | Tracks the number of delta file lookups performed by each operation. A single operation may perform several delta file lookups if the tablet is not fully compacted. High frequency of high values may indicate that compaction is falling behind. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_delta_file_lookups_per_op_sum_rate | Tracks the number of delta file lookups performed by each operation. A single operation may perform several delta file lookups if the tablet is not fully compacted. High frequency of high values may indicate that compaction is falling behind. This is the total sum of recorded samples. | message.units.probes per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_delta_file_lookups_rate | Number of times a delta file was consulted | message.units.probes per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_delta_major_compact_rs_duration_rate | Seconds spent major delta compacting. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_delta_major_compact_rs_duration_sum_rate | Seconds spent major delta compacting. This is the total sum of recorded samples. | seconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_delta_major_compact_rs_running | Number of delta major compactions currently running. | operations | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_delta_minor_compact_rs_duration_rate | Time spent minor delta compacting. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_delta_minor_compact_rs_duration_sum_rate | Time spent minor delta compacting. This is the total sum of recorded samples. | message.units.milliseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_delta_minor_compact_rs_running | Number of delta minor compactions currently running. | operations | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_failed_elections_since_stable_leader | Number of failed elections on this node since there was a stable leader. This number increments on each failed election and resets on each successful one. | message.units.units | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_flush_dms_duration_rate | Time spent flushing DeltaMemStores. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_flush_dms_duration_sum_rate | Time spent flushing DeltaMemStores. This is the total sum of recorded samples. | message.units.milliseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_flush_dms_running | Number of delta memstore flushes currently running. | operations | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_flush_mrs_duration_rate | Time spent flushing MemRowSets. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_flush_mrs_duration_sum_rate | Time spent flushing MemRowSets. This is the total sum of recorded samples. | message.units.milliseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_flush_mrs_running | Number of MemRowSet flushes currently running. | operations | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_follower_memory_pressure_rejections_rate | Number of RPC requests rejected due to memory pressure while FOLLOWER. | requests per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_in_progress_ops | Number of operations in the peer's queue ack'd by a minority of peers. | operations | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_insert_ignore_errors_rate | Number of insert ignore operations for this tablet which were ignored due to an error since service start | message.units.rows per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_insertions_failed_dup_key_rate | Number of inserts which failed because the key already existed | message.units.rows per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_key_file_lookups_per_op_rate | Tracks the number of key file lookups performed by each operation. A single operation may perform several key file lookups if the tablet is not fully compacted and if bloom filters are not effectively culling lookups. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_key_file_lookups_per_op_sum_rate | Tracks the number of key file lookups performed by each operation. A single operation may perform several key file lookups if the tablet is not fully compacted and if bloom filters are not effectively culling lookups. This is the total sum of recorded samples. | message.units.probes per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_key_file_lookups_rate | Number of times a key cfile was consulted | message.units.probes per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_last_read_elapsed_time | The elapsed time, in seconds, since the last read operation on this tablet, or since this Tablet object was created on current tserver if it hasn't been read since then. | seconds | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_last_write_elapsed_time | The elapsed time, in seconds, since the last write operation on this tablet, or since this Tablet object was created on current tserver if it hasn't been written to since then. | seconds | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_leader_memory_pressure_rejections_rate | Number of RPC requests rejected due to memory pressure while LEADER. | requests per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_live_row_count | Number of live rows in this tablet, excludes deleted rows. | message.units.rows | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_append_latency_rate | Microseconds spent on appending to the log segment file. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_append_latency_sum_rate | Microseconds spent on appending to the log segment file. This is the total sum of recorded samples. | message.units.microseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_bytes_logged_rate | Number of bytes logged since service start | bytes per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_cache_num_ops | Number of operations in the log cache. | operations | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_cache_size | Amount of memory in use for caching the local log. | bytes | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_entry_batches_per_group_rate | Number of log entry batches in a group commit group. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_entry_batches_per_group_sum_rate | Number of log entry batches in a group commit group. This is the total sum of recorded samples. | requests per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_gc_duration_rate | Time spent garbage collecting the logs. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_gc_duration_sum_rate | Time spent garbage collecting the logs. This is the total sum of recorded samples. | message.units.milliseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_gc_running | Number of log GC operations currently running. | operations | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_group_commit_latency_rate | Microseconds spent on committing an entire group. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_group_commit_latency_sum_rate | Microseconds spent on committing an entire group. This is the total sum of recorded samples. | message.units.microseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_reader_bytes_read_rate | Data read from the WAL since tablet start | bytes per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_reader_entries_read_rate | Number of entries read from the WAL since tablet start | entries per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_reader_read_batch_latency_rate | Microseconds spent reading log entry batches. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_reader_read_batch_latency_sum_rate | Microseconds spent reading log entry batches. This is the total sum of recorded samples. | bytes per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_roll_latency_rate | Microseconds spent on rolling over to a new log segment file. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_roll_latency_sum_rate | Microseconds spent on rolling over to a new log segment file. This is the total sum of recorded samples. | message.units.microseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_sync_latency_rate | Microseconds spent on synchronizing the log segment file. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_log_sync_latency_sum_rate | Microseconds spent on synchronizing the log segment file. This is the total sum of recorded samples. | message.units.microseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_majority_done_ops | Number of operations in the leader queue ack'd by a majority but not all peers. This metric is always zero for followers. | operations | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_memrowset_size | Size of this tablet's memrowset | bytes | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_merged_entities_count_of_tablet | Count of entities merged together when entities are merged by common attribute value. | entries | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_mrs_lookups_rate | Number of times a MemRowSet was consulted. | message.units.probes per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_num_rowsets_on_disk | Number of diskrowsets in this tablet | message.units.units | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_on_disk_data_size | Space used by this tablet's data blocks. | bytes | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_on_disk_size | Space used by this tablet on disk, including metadata. | bytes | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_op_prepare_queue_length_rate | Number of operations waiting to be prepared within this tablet. High queue lengths indicate that the server is unable to process operations as fast as they are being written to the WAL. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_op_prepare_queue_length_sum_rate | Number of operations waiting to be prepared within this tablet. High queue lengths indicate that the server is unable to process operations as fast as they are being written to the WAL. This is the total sum of recorded samples. | tasks per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_op_prepare_queue_time_rate | Time that operations spent waiting in the prepare queue before being processed. High queue times indicate that the server is unable to process operations as fast as they are being written to the WAL. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_op_prepare_queue_time_sum_rate | Time that operations spent waiting in the prepare queue before being processed. High queue times indicate that the server is unable to process operations as fast as they are being written to the WAL. This is the total sum of recorded samples. | message.units.microseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_op_prepare_run_time_rate | Time that operations spent being prepared in the tablet. High values may indicate that the server is under-provisioned or that operations are experiencing high contention with one another for locks. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_op_prepare_run_time_sum_rate | Time that operations spent being prepared in the tablet. High values may indicate that the server is under-provisioned or that operations are experiencing high contention with one another for locks. This is the total sum of recorded samples. | message.units.microseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_ops_behind_leader | Number of operations this server believes it is behind the leader. | operations | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_raft_term | Current Term of the Raft Consensus algorithm. This number increments each time a leader election is started. | message.units.units | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_rows_deleted_rate | Number of row delete operations performed on this tablet since service start | message.units.rows per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_rows_inserted_rate | Number of rows inserted into this tablet since service start | message.units.rows per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_rows_updated_rate | Number of row update operations performed on this tablet since service start | message.units.rows per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_rows_upserted_rate | Number of rows upserted into this tablet since service start | message.units.rows per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_scanner_bytes_returned_rate | Number of bytes returned by scanners to clients. This count is measured after predicates are applied and the data is decoded for consumption by clients, and thus is not a reflection of the amount of work being done by scanners. | bytes per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_scanner_bytes_scanned_from_disk_rate | Number of bytes read by scan requests. This is measured as a raw count prior to application of predicates, deleted data,or MVCC-based filtering. Thus, this is a better measure of actual IO that has been caused by scan operations compared to the Scanner Bytes Returned metric. Note that this only counts data that has been flushed to disk, and does not include data read from in-memory stores. However, itincludes both cache misses and cache hits. | bytes per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_scanner_cells_returned_rate | Number of table cells returned by scanners to clients. This count is measured after predicates are applied, and thus is not a reflection of the amount of work being done by scanners. | message.units.cells per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_scanner_cells_scanned_from_disk_rate | Number of table cells processed by scan requests. This is measured as a raw count prior to application of predicates, deleted data,or MVCC-based filtering. Thus, this is a better measure of actual table cells that have been processed by scan operations compared to the Scanner Cells Returned metric. Note that this only counts data that has been flushed to disk, and does not include data read from in-memory stores. However, itincludes both cache misses and cache hits. | message.units.cells per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_scanner_rows_returned_rate | Number of rows returned by scanners to clients. This count is measured after predicates are applied, and thus is not a reflection of the amount of work being done by scanners. | message.units.rows per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_scanner_rows_scanned_rate | Number of rows processed by scan requests. This is measured as a raw count prior to application of predicates, deleted data,or MVCC-based filtering. Thus, this is a better measure of actual table rows that have been processed by scan operations compared to the Scanner Rows Returned metric. | message.units.rows per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_scans_started_rate | Number of scanners which have been started on this tablet | message.units.scanners per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_snapshot_read_inflight_wait_duration_rate | Time spent waiting for in-flight writes to complete for READ_AT_SNAPSHOT scans. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_snapshot_read_inflight_wait_duration_sum_rate | Time spent waiting for in-flight writes to complete for READ_AT_SNAPSHOT scans. This is the total sum of recorded samples. | message.units.microseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_state | State of this tablet. | message.units.state | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_tablet_active_scanners | Number of scanners that are currently active on this tablet | message.units.scanners | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_time_since_last_leader_heartbeat | The time elapsed since the last heartbeat from the leader in milliseconds. This metric is identically zero on a leader replica. | message.units.milliseconds | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_transaction_memory_limit_rejections_rate | Number of transactions rejected because the tablet's transaction memory limit was reached. | transactions per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_transaction_memory_pressure_rejections_rate | Number of transactions rejected because the tablet's transactionmemory usage exceeds the transaction memory limit or the limitof an ancestral tracker. | transactions per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_undo_delta_block_estimated_retained_bytes | Estimated bytes of deletable data in undo delta blocks for this tablet. May be an overestimate. | bytes | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_undo_delta_block_gc_bytes_deleted_rate | Number of bytes deleted by garbage-collecting old UNDO delta blocks on this tablet since this server was restarted. Does not include bytes garbage collected during compactions. | bytes per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_undo_delta_block_gc_delete_duration_rate | Time spent deleting ancient UNDO delta blocks. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_undo_delta_block_gc_delete_duration_sum_rate | Time spent deleting ancient UNDO delta blocks. This is the total sum of recorded samples. | message.units.milliseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_undo_delta_block_gc_init_duration_rate | Time spent initializing ancient UNDO delta blocks. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_undo_delta_block_gc_init_duration_sum_rate | Time spent initializing ancient UNDO delta blocks. This is the total sum of recorded samples. | message.units.milliseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_undo_delta_block_gc_perform_duration_rate | Time spent running the maintenance operation to GC ancient UNDO delta blocks. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_undo_delta_block_gc_perform_duration_sum_rate | Time spent running the maintenance operation to GC ancient UNDO delta blocks. This is the total sum of recorded samples. | message.units.milliseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_undo_delta_block_gc_running | Number of UNDO delta block GC operations currently running. | operations | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_upserts_as_updates_rate | Number of upserts which were applied as updates because the key already existed. | message.units.rows per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_write_op_duration_client_propagated_consistency_rate | Duration of writes to this tablet with external consistency set to CLIENT_PROPAGATED. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_write_op_duration_client_propagated_consistency_sum_rate | Duration of writes to this tablet with external consistency set to CLIENT_PROPAGATED. This is the total sum of recorded samples. | message.units.microseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_write_op_duration_commit_wait_consistency_rate | Duration of writes to this tablet with external consistency set to COMMIT_WAIT. This is the total number of recorded samples. | samples per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_write_op_duration_commit_wait_consistency_sum_rate | Duration of writes to this tablet with external consistency set to COMMIT_WAIT. This is the total sum of recorded samples. | message.units.microseconds per second | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
| kudu_write_transactions_inflight | Number of write transactions currently in-flight | transactions | cluster, kudu, kudu-kudu_tserver, kudu_table, kudu_tablet, rack | CDH 5, CDH 6, CDH 7 |
