lsy3993 opened a new pull request, #53151:
URL: https://github.com/apache/doris/pull/53151
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #50638
Problem Summary:
When I use CCR to sync a database to another, I encounter this error in
fe.log:
```
java.lang.NullPointerException: Cannot invoke
"org.apache.doris.analysis.AbstractBackupTableRefClause.getTableRefList()"
because "restoreTableRefClause" is null
at
org.apache.doris.service.FrontendServiceImpl.restoreSnapshotImpl(FrontendServiceImpl.java:3147)
~[doris-fe.jar:1.2-SNAPSHOT]
at
org.apache.doris.service.FrontendServiceImpl.restoreSnapshot(FrontendServiceImpl.java:3038)
~[doris-fe.jar:1.2-SNAPSHOT]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
Method) ~[?:?]
at
jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
~[?:?]
at
jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:?]
at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?]
at
org.apache.doris.service.FeServer.lambda$start$0(FeServer.java:60)
~[doris-fe.jar:1.2-SNAPSHOT]
at jdk.proxy2.$Proxy26.restoreSnapshot(Unknown Source) ~[?:?]
at
org.apache.doris.thrift.FrontendService$Processor$restoreSnapshot.getResult(FrontendService.java:4552)
~[fe-common-1.2-SNAPSHOT.jar:1.2-SNAPSHOT]
at
org.apache.doris.thrift.FrontendService$Processor$restoreSnapshot.getResult(FrontendService.java:4532)
~[fe-common-1.2-SNAPSHOT.jar:1.2-SNAPSHOT]
at
org.apache.thrift.ProcessFunction.process(ProcessFunction.java:38)
~[libthrift-0.16.0.jar:0.16.0]
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:38)
~[libthrift-0.16.0.jar:0.16.0]
at
org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:250)
~[libthrift-0.16.0.jar:0.16.0]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
~[?:?]
```
so I fix the NPE.
BTW the code `ctx.getEnv()` may get a null pointer, so I fix it, too.
The reproduce steps are:
- create the database and table
```
create database test;
CREATE TABLE IF NOT EXISTS test.t1
(
`user_id` LARGEINT NOT NULL COMMENT "用户id",
`name` VARCHAR(20) COMMENT "用户所在城市"
) ENGINE = olap
DUPLICATE KEY(`user_id`)
DISTRIBUTED BY HASH(`user_id`) BUCKETS 2
PROPERTIES ("replication_num" = "1");
INSERT INTO test.t1 VALUES (1, 'a'), (2, 'b');
```
- enable binlog
```
ALTER TABLE test.t1 SET ("binlog.enable" = "true");
ALTER DATABASE test SET properties ("binlog.enable" = "true",
"binlog.ttl_seconds"="86400");
```
- start CCR process
```
git clone [email protected]:selectdb/ccr-syncer.git
cd ccr-syncer
sh build.sh
cd output/bin && sh start_syncer.sh --log_level trace
```
- create a post request to CCR
```
curl -X POST -H "Content-Type: application/json" -d '{
"name": "test_for_ccr_1",
"src": {
"host": "my_doris_fe_ip",
"port": "9030",
"thrift_port": "9020",
"user": "root",
"password": "",
"database": "test",
"table": ""
},
"dest": {
"host": "my_doris_fe_ip",
"port": "9030",
"thrift_port": "9020",
"user": "root",
"password": "",
"database": "test_dest",
"table": ""
}
}' http://127.0.0.1:9190/create_ccr
```
- get the error log
### Release note
None
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [ ] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [x] No.
- [ ] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR should
merge into -->
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