chia7712 commented on code in PR #15589:
URL: https://github.com/apache/kafka/pull/15589#discussion_r1536848215


##########
clients/src/main/java/org/apache/kafka/common/telemetry/internals/ClientTelemetryUtils.java:
##########
@@ -204,16 +202,14 @@ public static byte[] compress(byte[] raw, CompressionType 
compressionType) throw
     public static ByteBuffer decompress(byte[] metrics, CompressionType 
compressionType) {
         ByteBuffer data = ByteBuffer.wrap(metrics);
         try (InputStream in = compressionType.wrapForInput(data, 
RecordBatch.CURRENT_MAGIC_VALUE, BufferSupplier.create());
-            ByteArrayOutputStream out = new ByteArrayOutputStream()) {
-
+             ByteBufferOutputStream out = new ByteBufferOutputStream(1)) {

Review Comment:
   Yep, we can set a larger size to initialize buffer. Maybe we can use the 
same size (512 bytes) as line#192



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