JieFang.He created FLINK-18210:
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Summary: The tmpdir will be clean up when stop historyserver
Key: FLINK-18210
URL: https://issues.apache.org/jira/browse/FLINK-18210
Project: Flink
Issue Type: Improvement
Components: Runtime / Web Frontend
Affects Versions: 1.9.2
Reporter: JieFang.He
The tmpdir（config by historyserver.web.tmpdir） will be clean up when stop
historyserver。But the directory may be shared, it is better to delete files
that created by historyserver。
Part of the code to stop historyserver is shown below
{code:java}
try {
LOG.info("Removing web dashboard root cache directory {}", webDir);
FileUtils.deleteDirectory(webDir);
} catch (Throwable t) {
LOG.warn("Error while deleting web root directory {}", webDir, t);
}
{code}
FileUtils.deleteDirectory：
{code:java}
// empty the directory first
try {
cleanDirectoryInternal(directory);
}
{code}
cleanDirectoryInternal：
{code:java}
// remove all files in the directory
for (File file : files) {
if (file != null) {
deleteFileOrDirectory(file);
}
}
{code}
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