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https://issues.apache.org/jira/browse/IOTDB-5218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Gaofei Cao reassigned IOTDB-5218:
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Assignee: Yongzao Dan (was: Gaofei Cao)
> DataNode should marked started successfully until the region is assigned
> -------------------------------------------------------------------------
>
> Key: IOTDB-5218
> URL: https://issues.apache.org/jira/browse/IOTDB-5218
> Project: Apache IoTDB
> Issue Type: Bug
> Affects Versions: 1.0.0
> Reporter: Xiangdong Huang
> Assignee: Yongzao Dan
> Priority: Major
> Labels: DataNode
>
> A scenario:
> * start a configNode
> * start a datanode immediatelly
> * write data immediatelly
> Then there will be error:
> org.apache.iotdb.commons.exception.IoTDBException: ConfigNode failed to
> extend Region because there are not enough DataNodes
>
> Can use the following codes to reproduct:
> {code:java}
> IoTDBService service = IoTDBService.getInstance();
> service.startConfigNodeService();
> IoTDBService.getInstance().startDataNodeService();
> long time = System.currentTimeMillis();
> IoTDBService.getInstance().insertRecord("root.test.d1", time,
> Collections.singletonList("s1"), Collections.singletonList("1.0")); {code}
> IoTDBService is a wrapper to wrap CongfigNode's main() and DataNode's main().
>
> IMO, the datanode server is really ready only when there is a region for it.
> Besides, if the process is time consuming, we can add a status check method
> to check whether datanode is ready.
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