Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/11010#discussion_r51805826
--- Diff:
core/src/main/java/org/apache/spark/unsafe/map/BytesToBytesMap.java ---
@@ -426,14 +435,13 @@ public Location lookup(Object keyBase, long
keyOffset, int keyLength) {
*
* This is a thread-safe version of `lookup`, could be used by multiple
threads.
*/
- public void safeLookup(Object keyBase, long keyOffset, int keyLength,
Location loc) {
+ public void safeLookup(Object keyBase, long keyOffset, int keyLength,
Location loc, int hash) {
assert(longArray != null);
if (enablePerfMetrics) {
numKeyLookups++;
}
- final int hashcode = HASHER.hashUnsafeWords(keyBase, keyOffset,
keyLength);
- int pos = hashcode & mask;
+ int pos = hash & mask;
--- End diff --
It works.
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