changxue created IOTDB-4935:
-------------------------------
Summary: [UDF] beforeStart and beforeDestroy would be called more
than once
Key: IOTDB-4935
URL: https://issues.apache.org/jira/browse/IOTDB-4935
Project: Apache IoTDB
Issue Type: Bug
Affects Versions: 0.14.0-SNAPSHOT
Reporter: changxue
Assignee: Yuan Tian
Attachments: normla-udf-0.14-SNAPSHOT.jar
[UDF] beforeStart and beforeDestroy would be called more than once
文档中，说明了这两个方法只会被调用一次，但是实际结果并非如此。
reproduction:
{code}
create function count_sec as
"com.timecho.udf.normal.TestSessionTimeWindowAccessStrategy";
CREATE DATABASE root.udf;
CREATE TIMESERIES root.udf.d1.s1 WITH DATATYPE=text, ENCODING=PLAIN;
CREATE TIMESERIES root.udf.d1.s2 WITH DATATYPE=text, ENCODING=PLAIN;
insert into root.udf.d1 (time, s1, s2) values (1, 'udf', 'trigger'),(2, 'some'
, 'old'),(3, null, 'trigger'),(9, 'udf', 'new'),(5, 'woman', 'udf'),(12,
'trigger', null),(14, 'udf', 14),(18, 'udf', 16),(21, 'trigger', 18),(24,
'udf', 20);
select count_sec(s1, 'max_interval'=4, 'standard'='null') from root.udf.d1;
{code}
{code:shell}
2022-11-15 10:56:00,949
[pool-25-IoTDB-ClientRPC-Processor-6$20221115_025601_00221_1] INFO
c.t.u.n.TestSessionTimeWindowAccessStrategy:25 - ###### TestSessionTimeWindow #
beforeStart #######
2022-11-15 10:56:00,949
[pool-25-IoTDB-ClientRPC-Processor-6$20221115_025601_00221_1] INFO
c.t.u.n.TestSessionTimeWindowAccessStrategy:26 - attributes: {max_interval=4,
standard=null}
2022-11-15 10:56:00,949
[pool-25-IoTDB-ClientRPC-Processor-6$20221115_025601_00221_1] INFO
c.t.u.n.TestSessionTimeWindowAccessStrategy:57 - ###### TestSessionTimeWindow #
beforeDestroy #######
2022-11-15 10:56:00,951
[pool-21-IoTDB-MPPCoordinator-1$20221115_025601_00221_1.1.0] INFO
c.t.u.n.TestSessionTimeWindowAccessStrategy:25 - ###### TestSessionTimeWindow #
beforeStart #######
2022-11-15 10:56:00,951
[pool-21-IoTDB-MPPCoordinator-1$20221115_025601_00221_1.1.0] INFO
c.t.u.n.TestSessionTimeWindowAccessStrategy:26 - attributes: {max_interval=4,
standard=null}
2022-11-15 10:56:00,951
[pool-21-IoTDB-MPPCoordinator-1$20221115_025601_00221_1.1.0] INFO
c.t.u.n.TestSessionTimeWindowAccessStrategy:57 - ###### TestSessionTimeWindow #
beforeDestroy #######
2022-11-15 10:56:00,951
[pool-21-IoTDB-MPPCoordinator-1$20221115_025601_00221_1.1.0] INFO
c.t.u.n.TestSessionTimeWindowAccessStrategy:25 - ###### TestSessionTimeWindow #
beforeStart #######
2022-11-15 10:56:00,951
[pool-21-IoTDB-MPPCoordinator-1$20221115_025601_00221_1.1.0] INFO
c.t.u.n.TestSessionTimeWindowAccessStrategy:26 - attributes: {max_interval=4,
standard=null}
2022-11-15 10:56:00,951
[pool-21-IoTDB-MPPCoordinator-1$20221115_025601_00221_1.1.0] INFO
c.t.u.n.TestSessionTimeWindowAccessStrategy:57 - ###### TestSessionTimeWindow #
beforeDestroy #######
2022-11-15 10:56:00,951
[pool-21-IoTDB-MPPCoordinator-1$20221115_025601_00221_1.1.0] INFO
c.t.u.n.TestSessionTimeWindowAccessStrategy:25 - ###### TestSessionTimeWindow #
beforeStart #######
2022-11-15 10:56:00,952
[pool-21-IoTDB-MPPCoordinator-1$20221115_025601_00221_1.1.0] INFO
c.t.u.n.TestSessionTimeWindowAccessStrategy:26 - attributes: {max_interval=4,
standard=null}
2022-11-15 10:56:00,953 [Query-Worker-Thread-0$20221115_025601_00221_1.1.0]
INFO c.t.u.n.TestSessionTimeWindowAccessStrategy:45 - #########
TestSlidingTimeWindow # [1] 3 ########
2022-11-15 10:56:00,953 [Query-Worker-Thread-0$20221115_025601_00221_1.1.0]
INFO c.t.u.n.TestSessionTimeWindowAccessStrategy:45 - #########
TestSlidingTimeWindow # [9] 3 ########
2022-11-15 10:56:00,953 [Query-Worker-Thread-0$20221115_025601_00221_1.1.0]
INFO c.t.u.n.TestSessionTimeWindowAccessStrategy:45 - #########
TestSlidingTimeWindow # [18] 3 ########
2022-11-15 10:56:00,953 [Query-Worker-Thread-0$20221115_025601_00221_1.1.0]
INFO c.t.u.n.TestSessionTimeWindowAccessStrategy:57 - ######
TestSessionTimeWindow # beforeDestroy ####### {code}
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