[SPARK-21475][CORE][2nd attempt] Change to use NIO's Files API for external shuffle service #20144
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@zsxwing , would you please take a review, thanks! |
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Test build #85651 has finished for PR 20144 at commit
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LGTM. Thanks! Merging to master and 2.3. |
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…ternal shuffle service ## What changes were proposed in this pull request? This PR is the second attempt of #18684 , NIO's Files API doesn't override `skip` method for `InputStream`, so it will bring in performance issue (mentioned in #20119). But using `FileInputStream`/`FileOutputStream` will also bring in memory issue (https://dzone.com/articles/fileinputstream-fileoutputstream-considered-harmful), which is severe for long running external shuffle service. So here in this proposal, only fixing the external shuffle service related code. ## How was this patch tested? Existing tests. Author: jerryshao <[email protected]> Closes #20144 from jerryshao/SPARK-21475-v2. (cherry picked from commit 93f92c0) Signed-off-by: Shixiong Zhu <[email protected]>
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What changes were proposed in this pull request?
This PR is the second attempt of #18684 , NIO's Files API doesn't override
skipmethod forInputStream, so it will bring in performance issue (mentioned in #20119). But usingFileInputStream/FileOutputStreamwill also bring in memory issue (https://dzone.com/articles/fileinputstream-fileoutputstream-considered-harmful), which is severe for long running external shuffle service. So here in this proposal, only fixing the external shuffle service related code.How was this patch tested?
Existing tests.