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Posted to reviews@iotdb.apache.org by GitBox <gi...@apache.org> on 2020/02/18 14:37:17 UTC
[GitHub] [incubator-iotdb] jixuan1989 commented on issue #822: [IOTDB-502]
Fix possible NPE in `org.apache.iotdb.db.service.TSServiceImpl`
jixuan1989 commented on issue #822: [IOTDB-502] Fix possible NPE in `org.apache.iotdb.db.service.TSServiceImpl`
URL: https://github.com/apache/incubator-iotdb/pull/822#issuecomment-587490819
I tried. In this way, the start-client.sh tool will report:
```
IoTDB> Can not establish connection with jdbc:iotdb://127.0.0.1:6667/. Host is 127.0.0.1, port is 6667.
```
If we use JDCB like
```
Connection connection = DriverManager.getConnection("jdbc:iotdb://127.0.0.1:6667/", "root", "root")
```
then an exception will be thrown:
```
Exception in thread "main" java.sql.SQLException: Can not establish connection with jdbc:iotdb://127.0.0.1:6667/.
at org.apache.iotdb.jdbc.IoTDBConnection.openSession(IoTDBConnection.java:435)
at org.apache.iotdb.jdbc.IoTDBConnection.<init>(IoTDBConnection.java:84)
at org.apache.iotdb.jdbc.IoTDBDriver.connect(IoTDBDriver.java:63)
at java.sql.DriverManager.getConnection(DriverManager.java:664)
at java.sql.DriverManager.getConnection(DriverManager.java:247)
at org.apache.iotdb.JDBCExample.main(JDBCExample.java:32)
Caused by: org.apache.thrift.TApplicationException: getTimeZone failed: unknown result
at org.apache.iotdb.service.rpc.thrift.TSIService$Client.recv_getTimeZone(TSIService.java:405)
at org.apache.iotdb.service.rpc.thrift.TSIService$Client.getTimeZone(TSIService.java:389)
at org.apache.iotdb.jdbc.IoTDBConnection.getTimeZone(IoTDBConnection.java:475)
at org.apache.iotdb.jdbc.IoTDBConnection.openSession(IoTDBConnection.java:431)
... 5 more
```
It is accepted, at least better than the current status.
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