zhilinli123 commented on PR #4772:
URL: https://github.com/apache/seatunnel/pull/4772#issuecomment-1578052292
> > It's not a negative number, right? @Hisoka-X
>
> @zhilinli123 It can't be negative. I suggest compare two result of change
before and change after.
```
@Test
public void testHashValue() {
String a = "a,b,c,d,e,f";
for (Object o : Arrays.stream(a.split(",")).toArray()) {
System.out.println(getShard(o));
}
}
public int getShard(Object shardValue) {
int offset =
(int)
(HASH_INSTANCE.hash(
ByteBuffer.wrap(
shardValue
.toString()
.getBytes(StandardCharsets.UTF_8)),
0)
& Long.MAX_VALUE % 6);
return offset;
}
```
```
// Before After
// 1 -5
// 1 3
// 1 -5
// 0 2
// 0 4
// 1 -3
```
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