ptupitsyn commented on a change in pull request #434:
URL: https://github.com/apache/ignite-3/pull/434#discussion_r746771644
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File path:
modules/client-handler/src/integrationTest/java/org/apache/ignite/client/handler/ItClientHandlerTest.java
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@@ -167,7 +167,7 @@ void testHandshakeInvalidVersionReturnsError() throws
Exception {
final var err = unpacker.unpackString();
assertArrayEquals(MAGIC, magic);
- assertEquals(31, len);
+ assertEquals(32, len);
Review comment:
Please see comments in `ClientMessagePacker#packString`. Basically we
reserve string header size pessimistically to avoid extra string scan. It is
better to write 1 extra byte than to spend time on precise utf8 byte length
calculation.
The code from the library that we've used before was doing `byte[] bytes =
str.getBytes()` and then copied those bytes to the target buffer, which
involves an extra allocation and an extra copy.
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