caiconghui edited a comment on pull request #3775:
URL: https://github.com/apache/incubator-doris/pull/3775#issuecomment-644728422
Lock rule :
db lock -> table lock -> other lock or synchronized function { db lock ->
table lock}, not allowed to get same lock more than one time when already hold
lock , in order to escape potential dead lock.
It is hard to review the changed files at one time, so I classify the
modified files into different groups.
**Alter**
1 Alter.java
2 AlterHandler.java
3 AlterJobV2.java
4 MaterializedViewHandler.java
5 RollupJob.java
6 RollupJobV2.java
7 SchemaChangeHandler.java
8 SchemaChangeJob.java
9 SchemaChangeJobV2.java
**Stmt**
10 DescribeStmt.java
11 ExportStmt.java
12 ShowDataStmt.java
13 ShowPartitionsStmt.java
14 InsertStmt.java
15 QueryStmt.java
16 SelectStmt.java
17 SetOperationStmt.java
18 WithClause.java
19 StmtExecutor.java
20 ShowExecutor.java
**Backup**
21 BackupHandler.java
22 BackupJob.java
23 RestoreJob.java
**Catalog**
24 Catalog.java
25 CatalogRecycleBin.java
**Colocate**
25 ColocateTableIndex.java
26 ColocateTableBalancer.java
**Meta**
27 Database.java
28 MetadataViewer.java
29 OlapTable.java
30 Table.java
**MetaManager**
31 TabletStatMgr.java
32 DynamicPartitionScheduler.java
33 TabletChecker.java
34 TabletSchedCtx.java
35 TabletScheduler.java
**Proc**
36 EsPartitionsProcDir.java
37 EsShardProcDir.java
38 IndexInfoProcDir.java
39 IndicesProcDir.java
40 PartitionsProcDir.java
41 StatisticProcDir.java
42 TablesProcDir.java
43 TabletsProcDir.java
**Check**
44 CheckConsistencyJob.java
45 ConsistencyChecker.java
**Rest**
46 GetDdlStmtAction.java
47 MigrationAction.java
48 RowCountAction.java
49 StorageTypeCheckAction.java
50 TableQueryPlanAction.java
51 TableRowCountAction.java
52 TableSchemaAction.java
**Load**
53 BrokerFileGroup.java
54 DeleteHandler.java
55 DeleteJob.java
56 ExportJob.java
57 Load.java
58 LoadChecker.java
59 BrokerLoadJob.java
60 LoadManager.java
61 KafkaRoutineLoadJob.java
62 RoutineLoadJob.java
63 BulkLoadJob.java
64 LoadJob.java
65 SparkLoadJob.java
**System**
66 ReportHandler.java
67 SystemInfoService.java
68 ConnectProcessor.java
**Task**
69 HadoopLoadPendingTask.java
70 LoadEtlTask.java
71 MiniLoadPendingTask.java
72 StreamLoadTask.java
**TransactionMgr**
73 DatabaseTransactionMgr.java
74 GlobalTransactionMgr.java
**Rpc**
75 FrontendServiceImpl.java
76 MasterImpl.java
**Test**
77 TableTest.java
78 DeleteHandlerTest.java
79 StreamLoadPlannerTest.java
80 StreamLoadScanNodeTest.java
81 DatabaseTransactionMgrTest.java
82 GlobalTransactionMgrTest.java
83 StmtExecutorTest.java
84 SparkLoadJobTest.java
Looking forwards to lively discussions.
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