1. TaskScheduler will process one task per round
2. TaskScheduler will be blocked till queue tasks a new task
3. TaskScheduler will submit tasks when queue is empty
4. Add a example of creating a broker table by BOS
5. Change syntax of show routine load job
1. Add running/finished state proc to show specified state txns.
2. Add max disk used percent info in backends proc dir.
* add missing file
* fix bug
* Update fe/src/main/java/org/apache/doris/transaction/GlobalTransactionMgr.java
Co-Authored-By: morningman <morningman@163.com>
* Update fe/src/main/java/org/apache/doris/transaction/GlobalTransactionMgr.java
Co-Authored-By: morningman <morningman@163.com>
* Fix bug of listener
* Change txnStateChangeListener to txnStateChangeCallback
* Fix the logic of beforeAborted
1. It task is not belong to job, the txn attachment will be set to null.
* Txn will be abort normally without attachment.
* Job will not be updated by this task which attachment is null.
1. Add Config.max_routine_load_concurrent_task_num instead of the old one
2. Fix a bug that SHOW ALTER TABLE COLUMN may throw Nullpointer exception
3. Fix some misspelling of docs
1. Moving lock of routine load job from inside of lock of txn to outside.
2. The process of routine load task commit or abort is following:
* lock job
check task
lock txn
commit txn
unlock txn
commit task
* unlock job
3. The process of checking timeout txn will be ignored when there are related task of txn.
4. The relationship between task and txn will be removed when task timeout.
1. Use a data consumer group to share a single stream load pipe with multi data consumers. This will increase the consuming speed of Kafka messages, as well as reducing the task number of routine
load job.
Test results：
* 1 consumer, 1 partitions:
consume time: 4.469s, rows: 990140, bytes: 128737139. 221557 rows/s, 28M/s
* 1 consumer, 3 partitions:
consume time: 12.765s, rows: 2000143, bytes: 258631271. 156689 rows/s, 20M/s
blocking get time(us): 12268241, blocking put time(us): 1886431
* 3 consumers, 3 partitions:
consume time(all 3): 6.095s, rows: 2000503, bytes: 258631576. 328220 rows/s, 42M/s
blocking get time(us): 1041639, blocking put time(us): 10356581
The next 2 cases show that we can achieve higher speed by adding more consumers. But the bottle neck transfers from Kafka consumer to Doris ingestion, so 3 consumers in a group is enough.
I also add a Backend config `max_consumer_num_per_group` to change the number of consumers in a data consumer group, and default value is 3.
In my test(1 Backend, 2 tablets, 1 replicas), 1 routine load task can achieve 10M/s, which is same as raw stream load.
2. Add OFFSET_BEGINNING and OFFSET_END support for Kafka routine load
1. add show proc "/routine_loads" to show statistic of all of jobs and tasks
2. add show proc "/routine_loads/jobname" to show info of all of jobs named jobname
3. add show proc "/routine_loads/jobname/jobid" to show tasks belong to jobid
4. fix bug of allocateBeToTask
1. ShowRoutineLoadStmt is sames like class description. It does not support show all of routine load job in all of db
2. ShowRoutineLoadTaskStmt is sames like class description. It does not support show all of routine laod task in all of job
3. Init partitionIdsToOffset in constructor of KafkaProgress
4. Change Create/Pause/Resume/Stop routine load job to LabelName such as [db.]name
5. Exclude final job when updating job
6. Catch all of exception when scheduling one job. The exception will not block the another jobs.
1. the stopped and cancelled job will be cleaned after the interval of clean second
2. the interval of clean second * 1000 = current timestamp - end timestamp
3. if job could not fetch topic metadata when need_schedule, job will be cancelled
4. fix the deadlock of job and txn. the lock of txn must be in front of the lock of job
5. the job will be paused or cancelled depend on the abort reason of txn
6. the job will be cancelled immediately if the abort reason named offsets out of range
1. stream load executor will abort txn when no correct data in task
2. change txn label to DebugUtil.print(UUID) which is same as task id printed by be
3. change print uuid to hi-lo
