frankgh commented on code in PR #46: URL: https://github.com/apache/cassandra-analytics/pull/46#discussion_r1541831858
########## cassandra-analytics-core/src/main/java/org/apache/cassandra/spark/utils/XXHash32DigestAlgorithm.java: ########## @@ -61,7 +61,10 @@ public Digest calculateFileDigest(Path path) throws IOException { hasher.update(buffer, 0, len); } - return new XXHash32Digest(Long.toHexString(hasher.getValue()), SEED); + // lz4 library doesn't mask the hash value, so we need to mask it to + // prevent forwarding the negative sign bit when converting to a long value + long hash = hasher.getValue() & 0xffffffffL; Review Comment: that makes sense. Thanks for the clarification. I've pushed a commit to address this. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org