Write output directly to disk with -o#85
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szeiger merged 1 commit intodatabricks:masterfrom Aug 24, 2020
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This prevents caching the entire output string in memory, reducing the heap usage for our largest output file of 7.2 MB from 101 MB to 93 MB in my test. Only JSON is supported for now. YAML requires more work because the YamlRenderer is more closely tied to the underlying StringWriter, so it still has to buffer.
| val buf = new BufferedOutputStream(out) | ||
| val wr = new OutputStreamWriter(buf, StandardCharsets.UTF_8) | ||
| val u = contents(wr) | ||
| wr.flush() |
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Do we need to call buf.flush() here?
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No, flushing (like closing) is transitive, you only need to call it once for the first stream/writer in the pipeline.
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One comment, looks good to me otherwise. Feel free to merge once that's resolved! |
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This prevents caching the entire output string in memory, reducing the heap usage for our largest output file of 7.2 MB from 101 MB to 93 MB in my test.
Only JSON is supported for now. YAML requires more work because the YamlRenderer is more closely tied to the underlying StringWriter, so it still has to buffer.