divijvaidya commented on code in PR #13135:
URL: https://github.com/apache/kafka/pull/13135#discussion_r1084093810
##########
clients/src/main/java/org/apache/kafka/common/compress/ZstdFactory.java:
##########
@@ -62,10 +68,11 @@ public void release(ByteBuffer buffer) {
}
};
- // Set output buffer (uncompressed) to 16 KB (none by default) to
ensure reasonable performance
- // in cases where the caller reads a small number of bytes
(potentially a single byte).
- return new BufferedInputStream(new ZstdInputStreamNoFinalizer(new
ByteBufferInputStream(buffer),
- bufferPool), 16 * 1024);
+ // We do not use an intermediate buffer to store the decompressed
data as a result of JNI read() calls using
+ // `ZstdInputStreamNoFinalizer` here. Every read() call to
`DataInputStream` will be a JNI call and the
+ // caller is expected to balance the tradeoff between reading
large amount of data vs. making multiple JNI
+ // calls.
+ return new DataInputStream(new ZstdInputStreamNoFinalizer(new
ByteBufferInputStream(buffer), bufferPool));
Review Comment:
1. Thanks for pointing out. This is an artifact of some other changes I was
trying to do. Fix it now.
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