load configuration failed because Fail to reload configuration because java.lang.NumberFormatException: null

Describe the bug execute load configuration in Cli, exception occured

To Reproduce Steps to reproduce the behavior:

1. first start iotdb
2. use the Cli, execute ‘load configuration’
3. exception description

org.apache.iotdb.db.exception.query.QueryProcessException: Fail to reload config file file:sbin/…/conf/iotdb-engine.properties because Fail to reload configuration because java.lang.NumberFormatException: null at org.apache.iotdb.db.conf.IoTDBDescriptor.loadHotModifiedProps(IoTDBDescriptor.java:1051) at org.apache.iotdb.db.qp.executor.PlanExecutor.loadConfiguration(PlanExecutor.java:1761) at org.apache.iotdb.db.qp.executor.PlanExecutor.processNonQuery(PlanExecutor.java:286) at org.apache.iotdb.db.service.TSServiceImpl.executeNonQuery(TSServiceImpl.java:1248) at org.apache.iotdb.db.service.TSServiceImpl.executeNonQueryPlan(TSServiceImpl.java:1910) at org.apache.iotdb.db.service.TSServiceImpl.executeUpdateStatement(TSServiceImpl.java:1236) at org.apache.iotdb.db.service.TSServiceImpl.executeStatement(TSServiceImpl.java:659) at org.apache.iotdb.service.rpc.thrift.TSIService$Processor$executeStatement.getResult(TSIService.java:2253) at org.apache.iotdb.service.rpc.thrift.TSIService$Processor$executeStatement.getResult(TSIService.java:2233) at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:38) at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:38) at org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:248) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:834)

Some possible reasons : after some tests, maybe the attribute below do not specify default values according to the source code. max_deduplicated_path_num frequency_interval_in_minute slow_query_threshold merge_write_throughput_mb_per_sec

[HTHou]

Try using the latest version? this problem was fixed in 3 July #3487

I use the latest version 0.12.1. After unzip the no configuration file has changed before iotdb server start. I just want to test the ‘load configuration’ in Cli.

The mentioned PR is not in 0.12.1 but in 0.12.2, which will be released in few days.

[HTHou]

0.12.2 is released. Now you can upgrade to the new version. https://iotdb.apache.org/Download/