Hi all,

after merging Chris PR (thank you Chris!) I just checked everything before 
preparing the next RC and I observed that I get an issue with the created 
binaries.
I can start the server without Problems.
But when I start the Client I get:

2019-08-06 15:43:32,498 [pool-1-IoTDB-JDBC-Client-thread-1] ERROR 
org.apache.thrift.server.TThreadPoolServer$WorkerProcess:295 - Thrift error 
occurred during processing of message.
org.apache.thrift.protocol.TProtocolException: Required field 
'timestampPrecision' was not present! Struct: ServerProperties(version:0.8.0, 
supportedTimeAggregationOperations:[max_time, min_time], 
timestampPrecision:null)
            at 
org.apache.iotdb.service.rpc.thrift.ServerProperties.validate(ServerProperties.java:482)
            at 
org.apache.iotdb.service.rpc.thrift.TSIService$getProperties_result.validate(TSIService.java:11262)
            at 
org.apache.iotdb.service.rpc.thrift.TSIService$getProperties_result$getProperties_resultStandardScheme.write(TSIService.java:11321)
            at 
org.apache.iotdb.service.rpc.thrift.TSIService$getProperties_result$getProperties_resultStandardScheme.write(TSIService.java:11288)
            at 
org.apache.iotdb.service.rpc.thrift.TSIService$getProperties_result.write(TSIService.java:11239)
            at 
org.apache.thrift.ProcessFunction.process(ProcessFunction.java:53)
            at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
            at 
org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:286)
            at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
            at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
            at java.lang.Thread.run(Thread.java:745)
2019-08-06 15:43:32,499 [pool-1-IoTDB-JDBC-Client-thread-1] INFO  
org.apache.iotdb.db.service.TSServiceImpl:207 - IoTDB: receive close operation
2019-08-06 15:43:32,501 [pool-1-IoTDB-JDBC-Client-thread-1] INFO  
org.apache.iotdb.db.service.TSServiceImpl:182 - IoTDB: receive close session
2019-08-06 15:43:32,503 [pool-1-IoTDB-JDBC-Client-thread-1] WARN  
org.apache.thrift.transport.TIOStreamTransport:112 - Error closing output 
stream.
java.net.SocketException: Socket closed
            at 
java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:116)
            at java.net.SocketOutputStream.write(SocketOutputStream.java:153)
            at 
java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
            at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
            at java.io.FilterOutputStream.close(FilterOutputStream.java:158)
            at 
org.apache.thrift.transport.TIOStreamTransport.close(TIOStreamTransport.java:110)
            at org.apache.thrift.transport.TSocket.close(TSocket.java:235)
            at 
org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:303)
            at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
            at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
            at java.lang.Thread.run(Thread.java:745)

has anybody an idea how this has happened and what to do to fix it?

Thank you!

Julian

PS.: All tests do pass.

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