Dawid Wysakowicz created FLINK-14908:
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Summary: Distributing CacheFiles through DFS does not work
Key: FLINK-14908
URL: https://issues.apache.org/jira/browse/FLINK-14908
Project: Flink
Issue Type: Bug
Components: Client / Job Submission, Runtime / REST
Affects Versions: 1.9.1, 1.8.2
Reporter: Dawid Wysakowicz
User reported that distributing cache files through DFS does not work anymore:
https://stackoverflow.com/questions/58978476/flink-1-9-wont-run-program-when-i-use-distributed-cache-why
I think the problematic part is in {{RestClusterClient#submitJob}}:
{code}
for (Map.Entry<String,
DistributedCache.DistributedCacheEntry> artifacts :
jobGraph.getUserArtifacts().entrySet()) {
artifactFileNames.add(new
JobSubmitRequestBody.DistributedCacheFile(artifacts.getKey(), new
Path(artifacts.getValue().filePath).getName()));
filesToUpload.add(new
FileUpload(Paths.get(artifacts.getValue().filePath),
RestConstants.CONTENT_TYPE_BINARY));
}
{code}
The code does not check if a file is in DFS, but just assumes it is in local FS
and tries to add it to the rest request, which fails. The code on the receiver
side in {{JobSubmitHandler}} still can support files distributed via DFS, but
need to get proper paths to files in DFS.
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