wangbo opened a new issue #5390:
URL: https://github.com/apache/incubator-doris/issues/5390
code version: 0.13.11
**Describe the bug**
```
2021-02-18 10:27:29,961 ERROR (replayer|75) [EditLog.loadJournal():816]
Operation Type 94
java.lang.NullPointerException: null
at
com.google.common.base.Preconditions.checkNotNull(Preconditions.java:878)
~[spark-dpp-1.0.0.jar:1.0.0]
at
org.apache.doris.catalog.ColocateTableIndex.replayAddTableToGroup(ColocateTableIndex.java:444)
~[palo-fe.jar:3.4.0]
at org.apache.doris.persist.EditLog.loadJournal(EditLog.java:628)
[palo-fe.jar:3.4.0]
at org.apache.doris.catalog.Catalog.replayJournal(Catalog.java:2563)
[palo-fe.jar:3.4.0]
at org.apache.doris.catalog.Catalog$3.runOneCycle(Catalog.java:2347)
[palo-fe.jar:3.4.0]
at org.apache.doris.common.util.Daemon.run(Daemon.java:116)
[palo-fe.jar:3.4.0]
```
From the above log we can see, when replay a ```ColocatePersistInfo```, its
table id can't be find in Database, then FE crash.
```
//master fe.log, the same table create successfully twice
// request 1:
2021-02-18 10:17:11,823 INFO (thrift-server-pool-983|56147)
[Catalog.createOlapTable():3924] successfully create
table[app_rt_rider_accept_waybill_rider_offset;58010577]
// request 2:
2021-02-18 10:17:25,256 INFO (thrift-server-pool-1200|155296)
[Catalog.createOlapTable():3924] successfully create
table[app_rt_rider_accept_waybill_rider_offset;58016408]
// master fe.log, master receive create table forward request from the same
follower
// request 1:
2021-02-18 10:16:45,427 DEBUG (thrift-server-pool-983|56147)
[FrontendServiceImpl.forward():592] receive forwarded stmt 20766895 from FE: xxx
2021-02-18 10:16:45,427 INFO (thrift-server-pool-983|56147)
[StmtExecutor.analyze():399] begin to analyze stmt: 5074185, forwarded stmt id:
20766895
// request 2:
2021-02-18 10:17:05,450 DEBUG (thrift-server-pool-1200|155296)
[FrontendServiceImpl.forward():592] receive forwarded stmt 20766895 from FE: xxx
2021-02-18 10:17:05,451 INFO (thrift-server-pool-1200|155296)
[StmtExecutor.analyze():399] begin to analyze stmt: 5074223, forwarded stmt id:
20766895
// follower fe.log, receive create table request from client
2021-02-18 10:16:45,426 INFO (doris-mysql-nio-pool-19139|472265)
[StmtExecutor.analyze():399] begin to analyze stmt: 20766895, forwarded stmt
id: 0
2021-02-18 10:16:45,427 INFO (doris-mysql-nio-pool-19139|472265)
[MasterOpExecutor.forward():98] Forward statement 20766895 to Master
TNetworkAddress(hostname:xxx, port:xxx)
```
From the log above, we can conclude the bug reason:
1 A Follower receive a create table request from client.
2 The Follower forward the request to Master.
3 Master response throw exception because of unknown reason, so the Follower
try to forward twice.
4 Master request the same create table request twice, the second request
create a new table, but didn't write table to Edit log. And
```ColocatePersistInfo``` write to Edit log twice.
5 When replay ```ColocatePersistInfo```, it can't find its table id, then
NPE happends;
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