EmmyMiao87 opened a new issue #4571:
URL: https://github.com/apache/incubator-doris/issues/4571
**Describe the bug**
fe.log:
```
2020-09-09 20:46:37,251 ERROR (replayer|56) [EditLog.loadJournal():804]
Operation Type 21
java.lang.NullPointerException: null
at org.apache.doris.alter.RollupJob.replayFinish(RollupJob.java:906)
~[palo-fe.jar:?]
at
org.apache.doris.alter.AlterHandler.replayFinish(AlterHandler.java:339)
~[palo-fe.jar:?]
at org.apache.doris.persist.EditLog.loadJournal(EditLog.java:283)
[palo-fe.jar:?]
at org.apache.doris.catalog.Catalog.replayJournal(Catalog.java:2497)
[palo-fe.jar:?]
at org.apache.doris.catalog.Catalog$3.runOneCycle(Catalog.java:2281)
[palo-fe.jar:?]
at org.apache.doris.common.util.Daemon.run(Daemon.java:116)
[palo-fe.jar:?]
```
**To Reproduce**
Steps to reproduce the behavior:
1. restart fe
2. fe could not be start
**Expected behavior**
fe running
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