## Proposed changes
#39015
### Description:
This issue proposes the addition of new features to the project,
including a deadlock detection tool and monitored lock implementations.
These features will help in identifying and debugging potential
deadlocks and monitoring lock usage. Features:
#### AbstractMonitoredLock:
A monitored version of Lock that tracks and logs lock acquisition and
release times. Functionality:
Overrides lock(), unlock(), tryLock(), and tryLock(long timeout,
TimeUnit unit) methods. Logs information about lock acquisition time,
release time, and any failure to acquire the lock within the specified
timeout. ##### eg
```log
2024-08-07 12:02:59 [ Thread-2:2006 ] - [ WARN ] Thread ID: 12, Thread Name: Thread-2 - Lock held for 1912 ms, exceeding hold timeout of 1000 ms
Thread stack trace:
at java.lang.Thread.getStackTrace(Thread.java:1564)
at org.example.lock.AbstractMonitoredLock.afterUnlock(AbstractMonitoredLock.java:49)
at org.example.lock.MonitoredReentrantLock.unlock(MonitoredReentrantLock.java:32)
at org.example.ExampleService.timeout(ExampleService.java:17)
at org.example.Main.lambda$test2$1(Main.java:39)
at java.lang.Thread.run(Thread.java:750)
```
#### DeadlockCheckerTool:
Uses ScheduledExecutorService for periodic deadlock checks. Logs
deadlock information including thread names, states, lock info, and
stack traces.
**ThreadMXBean accesses thread information in the local JVM, which is
already in memory, so accessing it is less expensive than fetching data
from external resources such as disk or network. Thread state cache: The
JVM typically maintains a cache of thread states, reducing the need for
real-time calculations or additional data processing.** ##### eg
```log
Thread Name: Thread-0
Thread State: WAITING
Lock Name: java.util.concurrent.locks.ReentrantLock$NonfairSync@1d653213
Lock Owner Name: Thread-1
Lock Owner Id: 12
Waited Time: -1
Blocked Time: -1
Lock Info: java.util.concurrent.locks.ReentrantLock$NonfairSync@1d653213
Blocked by: java.util.concurrent.locks.ReentrantLock$NonfairSync@1d653213
Stack Trace:
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199)
at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209)
at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285)
at org.example.lock.MonitoredReentrantLock.lock(MonitoredReentrantLock.java:22)
at org.example.Main.lambda$testDeadLock$3(Main.java:79)
at org.example.Main$$Lambda$1/1221555852.run(Unknown Source)
at java.lang.Thread.run(Thread.java:750)
2024-08-07 14:11:28 [ pool-1-thread-1:2001 ] - [ WARN ] Deadlocks detected:
Thread Name: Thread-1
Thread State: WAITING
Lock Name: java.util.concurrent.locks.ReentrantLock$NonfairSync@13a2dfcf
Lock Owner Name: Thread-0
Lock Owner Id: 11
Waited Time: -1
Blocked Time: -1
Lock Info: java.util.concurrent.locks.ReentrantLock$NonfairSync@13a2dfcf
Blocked by: java.util.concurrent.locks.ReentrantLock$NonfairSync@13a2dfcf
Stack Trace:
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199)
at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209)
at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285)
at org.example.lock.MonitoredReentrantLock.lock(MonitoredReentrantLock.java:22)
at org.example.Main.lambda$testDeadLock$4(Main.java:93)
at org.example.Main$$Lambda$2/1556956098.run(Unknown Source)
at java.lang.Thread.run(Thread.java:750)
```
##### benchmark
```
@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
@Measurement(iterations = 2, time = 2, timeUnit = TimeUnit.SECONDS)
@Threads(1)
Benchmark Mode Cnt Score Error Units
LockBenchmark.testMonitoredLock thrpt 2 15889.407 ops/ms
LockBenchmark.testMonitoredLock:·gc.alloc.rate thrpt 2 678.061 MB/sec
LockBenchmark.testMonitoredLock:·gc.alloc.rate.norm thrpt 2 56.000 B/op
LockBenchmark.testMonitoredLock:·gc.churn.PS_Eden_Space thrpt 2 668.249 MB/sec
LockBenchmark.testMonitoredLock:·gc.churn.PS_Eden_Space.norm thrpt 2 55.080 B/op
LockBenchmark.testMonitoredLock:·gc.churn.PS_Survivor_Space thrpt 2 0.075 MB/sec
LockBenchmark.testMonitoredLock:·gc.churn.PS_Survivor_Space.norm thrpt 2 0.006 B/op
LockBenchmark.testMonitoredLock:·gc.count thrpt 2 20.000 counts
LockBenchmark.testMonitoredLock:·gc.time thrpt 2 6.000 ms
LockBenchmark.testNativeLock thrpt 2 103130.635 ops/ms
LockBenchmark.testNativeLock:·gc.alloc.rate thrpt 2 ≈ 10⁻⁴ MB/sec
LockBenchmark.testNativeLock:·gc.alloc.rate.norm thrpt 2 ≈ 10⁻⁶ B/op
LockBenchmark.testNativeLock:·gc.count thrpt 2 ≈ 0 counts
@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
@Measurement(iterations = 2, time = 2, timeUnit = TimeUnit.SECONDS)
@Threads(100)
Benchmark Mode Cnt Score Error Units
LockBenchmark.testMonitoredLock thrpt 2 10994.606 ops/ms
LockBenchmark.testMonitoredLock:·gc.alloc.rate thrpt 2 488.508 MB/sec
LockBenchmark.testMonitoredLock:·gc.alloc.rate.norm thrpt 2 56.002 B/op
LockBenchmark.testMonitoredLock:·gc.churn.PS_Eden_Space thrpt 2 481.390 MB/sec
LockBenchmark.testMonitoredLock:·gc.churn.PS_Eden_Space.norm thrpt 2 55.163 B/op
LockBenchmark.testMonitoredLock:·gc.churn.PS_Survivor_Space thrpt 2 0.020 MB/sec
LockBenchmark.testMonitoredLock:·gc.churn.PS_Survivor_Space.norm thrpt 2 0.002 B/op
LockBenchmark.testMonitoredLock:·gc.count thrpt 2 18.000 counts
LockBenchmark.testMonitoredLock:·gc.time thrpt 2 9.000 ms
LockBenchmark.testNativeLock thrpt 2 558652.036 ops/ms
LockBenchmark.testNativeLock:·gc.alloc.rate thrpt 2 0.016 MB/sec
LockBenchmark.testNativeLock:·gc.alloc.rate.norm thrpt 2 ≈ 10⁻⁴ B/op
LockBenchmark.testNativeLock:·gc.count thrpt 2 ≈ 0 counts
```
## Proposed changes
Issue Number: close #xxx
<!--Describe your changes.-->
…38731)
https://github.com/apache/doris/pull/38731
The stddev function has a separate implementation for the DecimalV2
type, but there are issues with the implementation. Given that there is
almost no existing data for DecimalV2, it will be removed here. For be,
upgrading to this situation will result in an error directly.
```
SELECT STDDEV(data) FROM DECIMALV2_10_0_DATA;
ERROR 1105 (HY000): errCode = 2, detailMessage = (127.0.0.1)[INTERNAL_ERROR]Agg Function stddev(decimal(10,0)) is not implemented
```
After removing DecimalV2, parameters of type DecimalV2 will be converted
to double for calculations.
## Proposed changes
Issue Number: close #xxx
<!--Describe your changes.-->
We should lock table when generate distribute plan, because insert overwrite by async materialized view will drop partitions parallel, and query thread will throw exception:
```
java.lang.RuntimeException: Cannot invoke "org.apache.doris.catalog.Partition.getBaseIndex()" because "partition" is null
at org.apache.doris.nereids.util.Utils.execWithUncheckedException(Utils.java:76) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.nereids.glue.translator.PhysicalPlanTranslator.translatePlan(PhysicalPlanTranslator.java:278) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.nereids.NereidsPlanner.splitFragments(NereidsPlanner.java:341) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.nereids.NereidsPlanner.distribute(NereidsPlanner.java:400) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.nereids.NereidsPlanner.plan(NereidsPlanner.java:147) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.StmtExecutor.executeByNereids(StmtExecutor.java:796) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:605) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.StmtExecutor.queryRetry(StmtExecutor.java:558) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:548) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.ConnectProcessor.executeQuery(ConnectProcessor.java:385) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.ConnectProcessor.handleQuery(ConnectProcessor.java:237) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.MysqlConnectProcessor.handleQuery(MysqlConnectProcessor.java:260) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.MysqlConnectProcessor.dispatch(MysqlConnectProcessor.java:288) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.MysqlConnectProcessor.processOnce(MysqlConnectProcessor.java:342) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.mysql.ReadListener.lambda$handleEvent$0(ReadListener.java:52) ~[doris-fe.jar:1.2-SNAPSHOT]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) ~[?:?]
at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: java.lang.NullPointerException: Cannot invoke "org.apache.doris.catalog.Partition.getBaseIndex()" because "partition" is null
at org.apache.doris.planner.OlapScanNode.mockRowCountInStatistic(OlapScanNode.java:589) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.planner.OlapScanNode.finalizeForNereids(OlapScanNode.java:1733) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.nereids.util.Utils.execWithUncheckedException(Utils.java:74) ~[doris-fe.jar:1.2-SNAPSHOT]
... 17 more
2024-07-29 00:46:17,608 WARN (mysql-nio-pool-114|201) Analyze failed. stmt[210035, 49d3041004ba4b6a-b07fe4491d03c5de]
org.apache.doris.common.NereidsException: errCode = 2, detailMessage = Cannot invoke "org.apache.doris.catalog.Partition.getBaseIndex()" because "partition" is null
at org.apache.doris.qe.StmtExecutor.executeByNereids(StmtExecutor.java:803) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:605) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.StmtExecutor.queryRetry(StmtExecutor.java:558) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.StmtExecutor.execute(StmtExecutor.java:548) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.ConnectProcessor.executeQuery(ConnectProcessor.java:385) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.ConnectProcessor.handleQuery(ConnectProcessor.java:237) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.MysqlConnectProcessor.handleQuery(MysqlConnectProcessor.java:260) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.MysqlConnectProcessor.dispatch(MysqlConnectProcessor.java:288) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.qe.MysqlConnectProcessor.processOnce(MysqlConnectProcessor.java:342) ~[doris-fe.jar:1.2-SNAPSHOT]
at org.apache.doris.mysql.ReadListener.lambda$handleEvent$0(ReadListener.java:52) ~[doris-fe.jar:1.2-SNAPSHOT]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) ~[?:?]
at java.lang.Thread.run(Thread.java:833) ~[?:?]
```
this exception is too hard to reproduce, so I can not write a test case
## Proposed changes
Now, Agg's child predicates will not spread to agg.
For example:
select a, sum(b)
from (
select a,b from t where a = 1 and b = 2
) t
group by a
`a = 1` in scan can be propagated to `a` of agg.
But `b = 2` in scan can not be propagated to `sum(b)` of agg.
Issue Number: #38905
<!--Describe your changes.-->
Co-authored-by: liutang123 <liulijia@gmail.com>
enable run match expression outer of filter plan, e.g join conjunct
support eliminate outer join by match expression, if any arguments of match expression is null literal
pick (#38439)
1. Move the execution of testJdbcConnection() to checkWhenCreating
instead of the constructor
2. Move the logic of renaming lower_case_table_names to
lower_case_meta_names to setDefaultPropsIfMissing
bp #38432
## Proposed changes
Add `hive_parquet_use_column_names` and `hive_orc_use_column_names`
session variables to read the table after rename column in `Hive`.
These two session variables are referenced from
`parquet_use_column_names` and `orc_use_column_names` of `Trino` hive
connector.
By default, these two session variables are true. When they are set to
false, reading orc/parquet will access the columns according to the
ordinal position in the Hive table definition.
For example:
```mysql
in Hive :
hive> create table tmp (a int , b string) stored as parquet;
hive> insert into table tmp values(1,"2");
hive> alter table tmp change column a new_a int;
hive> insert into table tmp values(2,"4");
in Doris :
mysql> set hive_parquet_use_column_names=true;
Query OK, 0 rows affected (0.00 sec)
mysql> select * from tmp;
+-------+------+
| new_a | b |
+-------+------+
| NULL | 2 |
| 2 | 4 |
+-------+------+
2 rows in set (0.02 sec)
mysql> set hive_parquet_use_column_names=false;
Query OK, 0 rows affected (0.00 sec)
mysql> select * from tmp;
+-------+------+
| new_a | b |
+-------+------+
| 1 | 2 |
| 2 | 4 |
+-------+------+
2 rows in set (0.02 sec)
```
You can use `set
parquet.column.index.access/orc.force.positional.evolution = true/false`
in hive 3 to control the results of reading the table like these two
session variables. However, for the rename struct inside column parquet
table, the effects of hive and doris are different.
bp: #37565
Currently, Doris first obtains splits and then performs projection.
After column pruning, it calls `updateRequiredSlots` to update the
scanRange information. However, the Trino connector's column pruning
pushdown needs to be completed before obtaining splits.
Therefore, we move the finalize phase of `ScanNode` to after the end of
the `Physical Translate` phase, so that `createScanRangeLocations` can
use the final columns which have been pruning.
## Proposed changes
Issue Number: close #xxx
<!--Describe your changes.-->
pick (#38523)
Create a job:
```
CREATE ROUTINE LOAD testShow ON test_show_routine_load
COLUMNS TERMINATED BY ","
PROPERTIES
(
"max_batch_interval" = "5",
"max_batch_rows" = "300000",
"max_batch_size" = "209715200"
)
FROM KAFKA
(
"kafka_broker_list" = "127.0.0.1:19092",
"kafka_topic" = "test_show_routine_load",
"property.kafka_default_offsets" = "OFFSET_BEGINNING"
);
```
show routine load task:
```
SHOW ROUTINE LOAD TASK WHERE JobName = "testShow";
```
result:
```
ERROR 1105 (HY000): errCode = 2, detailMessage = The job named testshowdoes not exists or job state is stopped or cancelled
```
Do not use `toLowerCase` method;
pick from master #38660
insert will hold readlock of target table before planning. if nereids
need db readlock after it, will lead to dead lock. because other
statement need to hold db lock before get table lock
for example:
insert: target table read lock -> database read lock
drop table: database write lock -> target table write lock
