Xiangdong Huang created IOTDB-266:
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Summary: NullPoint exception when reading not existed devices
using ReadOnlyTsFile
Key: IOTDB-266
URL: https://issues.apache.org/jira/browse/IOTDB-266
Project: Apache IoTDB
Issue Type: Bug
Reporter: Xiangdong Huang
The code is:
{code:java}
//代码占位符
ReadOnlyTsFile tsFileReader = new ReadOnlyTsFile(new
TsFileSequenceReader("file.tsfile"));
ArrayList<Path> paths = new ArrayList<>();
paths.add(new Path("system.test_cpu"));
// no filter, should select 1 2 3 4 6 7 8
queryAndPrint(paths, tsFileReader, null);
tsFileReader.close();
{code}
, and actually the correct path is "root.app.system.test_cpu". Now because I
define an incorrect path (i.e., not exist in the tsfile), then I get an
exception:
WARN [2019-10-24 06:29:41,832] [main]
org.apache.iotdb.tsfile.common.conf.TSFileDescriptor:87 - Failed to find config
file tsfile-format.properties at classpath, use default configuration WARN
[2019-10-24 06:29:41,832] [main]
org.apache.iotdb.tsfile.common.conf.TSFileDescriptor:87 - Failed to find config
file tsfile-format.properties at classpath, use default configuration Exception
in thread "main" java.lang.NullPointerException at
org.apache.iotdb.tsfile.read.TsFileSequenceReader.readTsDeviceMetaData(TsFileSequenceReader.java:276)
at
org.apache.iotdb.tsfile.read.controller.MetadataQuerierByFileImpl.loadChunkMetaDatas(MetadataQuerierByFileImpl.java:110)
at
org.apache.iotdb.tsfile.read.query.executor.TsFileExecutor.execute(TsFileExecutor.java:57)
at org.apache.iotdb.tsfile.read.ReadOnlyTsFile.query(ReadOnlyTsFile.java:48)
at cn.edu.thu.accessdata.TsFileQuery.queryAndPrint(TsFileQuery.java:30) at
cn.edu.thu.accessdata.TsFileQuery.main(TsFileQuery.java:21)
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