Chunked encoding for _cat APIs #92022
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Some of these APIs scale as O(#indices) or O(#shards) so it seems worthwhile to use chunked encoding throughout. Relates elastic#89838
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DaveCTurner
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Nov 30, 2022
| import java.io.OutputStream; | ||
| import java.io.Writer; | ||
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| public final class UTF8StreamWriter extends Writer { |
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This claims performance benefits over the JDK's Writer. It's possible those claims are true, but I don't think this is on a hot enough path to warrant having yet another custom (and wholly untested) implementation of UTF-8 encoding, so I've replaced it with a regular Writer instead.
| currentOutput = null; | ||
| return new ReleasableBytesReference(chunkOutput.bytes(), () -> Releasables.closeExpectNoException(chunkOutput)); | ||
| } finally { | ||
| if (currentOutput != null) { |
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Although I don't see any obvious ways to throw exceptions in this area, I'm somewhat dubious about how such an exception would be handled in the networking code (edit: I get it now, but for the sake of safety we have to close currentOutput if we're not returning)
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test/framework/src/main/java/org/elasticsearch/rest/RestResponseUtils.java
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Some of these APIs scale as O(#indices) or O(#shards) so it seems worthwhile to use chunked encoding throughout.
Relates #89838