Hello, When I read the codes of libhdfs, I found that the last exception string was not cleaned before calling functions.
In more detail, an exception will be saved in `ThreadLocalState` by `setTLSExceptionStrings` if it throws in function calling, then the subsequent calling of `hdfsGetLastExceptionRootCause` will return the saved exception strings. But the problem is even if the subsequent calling of other functions, eg `hdfsExists`, returns success, the ` hdfsGetLastExceptionRootCause` still returns the former exception strings. The related code is in: https://github.com/apache/hadoop/blob/5cda162a804fb0cfc2a5ac0058ab407662c5fb00/hadoop-hdfs-project/hadoop-hdfs-native-client/src/main/native/libhdfs/jni_helper.c#L795-L809 Does anyone know if this behavior is expected? Thanks
