query_max_planning_time | 10.00m | 10.00m | varchar | Maximum planning time of a query query_max_run_time | 60.00m | 60.00m | varchar | Maximum run time of a query (includes the queueing time) query_max_scan_physical_bytes | | | varchar | Maximum scan physical bytes of a query q...
stageId(); opOut.pipelineId = i; opOut.planNodeId = op.planNodeId; opOut.operatorId = op.operatorId; opOut.operatorType = toTrinoOperatorType(op.operatorType); opOut.totalDrivers = op.numDrivers; opOut.inputPositions = op.inputPositions; opOut.sumSquaredInputPositions = ((double)op....
Presto有个初始散列分区数的概念,如果设为8的话,假设query.max-memory(用户内存)=50GB,平均每个worker node用户内存占用为50GB/8=6.25GB,如果query.max-memory-per-node设为13GB的话,那么这个配置可允许超过平均值两倍的数据倾斜。 Presto的所有Worker node应该同等配置,否则无法妥善利用。 12.4 任务并发性 task wor...
It currently logs timestamp, initiating user (name used in the Trino session or the user's OS name if session name was unspecified), schema name and table name (format is schemaname.tablename), query ID, query status (success/failure), SQL statement, and the number of records that were ...
Trino runs a query by breaking up the run into a hierarchy ofstages, which are implemented as a series oftasksdistributed over a network of Trino workers. This pipelined execution model runs multiple stages in parallel and streams data from one stag...
Stage Execution Strategy: UNGROUPED_EXECUTION Aggregate(PARTIAL)[group_name][$hashvalue_12] │ Layout: [group_name:varchar(740), $hashvalue_12:bigint, count_5:bigint] │ count_5 := count(*) └─ Project[] │ Layout: [group_name:varchar(740), $hashvalue_12:bigint] ...
query.remote-task.max-request-size 8MB 8MB 2023-08-18T16:08:07.203Z INFO main Bootstrap query.max-stage-count 150 300 2023-08-18T16:08:07.203Z INFO main Bootstrap query.max-state-machine-callback-threads 5 5 The maximum number of threads allowed to run query and stage state machine ...
{"stageId":"1","state":"PENDING","done":false,"nodes":2,"totalSplits":2,"queuedSplits":0,"runningSplits":1,"completedSplits":1,"cpuTimeMillis":29,"wallTimeMillis":139,"processedRows":521,"processedBytes":96423,"physicalInputBytes":96423,"failedTasks":0,"coordinatorOnly":false,"...