Xin Wang created IOTDB-503:
------------------------------
Summary: add checkTimeseriesExists for session
Key: IOTDB-503
URL: https://issues.apache.org/jira/browse/IOTDB-503
Project: Apache IoTDB
Issue Type: Improvement
Components: Core/Engine
Reporter: Xin Wang
In most scenarios, we should check whether it already exists before creating,
otherwise the following exception may be thrown from server:
{quote}org.apache.iotdb.db.exception.query.QueryProcessException: Timeseries
[root.sg.d1.s1] already
existorg.apache.iotdb.db.exception.query.QueryProcessException: Timeseries
[root.sg.d1.s1] already exist at
org.apache.iotdb.db.qp.executor.QueryProcessExecutor.createTimeSeries(QueryProcessExecutor.java:552)
at
org.apache.iotdb.db.qp.executor.QueryProcessExecutor.processNonQuery(QueryProcessExecutor.java:122)
at
org.apache.iotdb.db.service.TSServiceImpl.executeNonQuery(TSServiceImpl.java:1044)
at
org.apache.iotdb.db.service.TSServiceImpl.executePlan(TSServiceImpl.java:1387)
at
org.apache.iotdb.db.service.TSServiceImpl.createTimeseries(TSServiceImpl.java:1342)
at
org.apache.iotdb.service.rpc.thrift.TSIService$Processor$createTimeseries.getResult(TSIService.java:1953)
at
org.apache.iotdb.service.rpc.thrift.TSIService$Processor$createTimeseries.getResult(TSIService.java:1933)
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:38) at
org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:38) at
org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:313)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
{quote}
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