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https://issues.apache.org/jira/browse/FLINK-14908?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16979412#comment-16979412
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Dawid Wysakowicz commented on FLINK-14908:
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cc [~chesnay] [~trohrmann] Do you know if this is a bug or was it intentional?
> 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: 1.8.2, 1.9.1
> Reporter: Dawid Wysakowicz
> Priority: Major
>
> 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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