Hi, For awareness, I would to like to raise a potential issue that we’ve run into when testing Elasticsearch with the latest 9.x branch.
A recent change in 9.x [1] has introduced a dependency on hppc 0.9.1. Hppc has added an explicit automatic module name in its manifest, which effectively changes the auto module name from the plain hppc (derived from the jar file name) to com.carrotsearch.hppc. So one must use 0.9.1 ( or 0.9.0 ) if deployed as a module - otherwise the resolution of the `org.apache.lucene.join` module will fail. Since Elasticsearch is deployed as a module, then we need to update to hppc 0.9.1 [2], but unfortunately this is not straightforward. In fact, Ryan has a PR open [3] for the past 2 years without completion! The iteration order of some collection types in hppc 0.9.x [*] is tickling some inadvertent order dependencies in Elasticsearch. It may take some time to track these down and fix them. I wonder if others may run into either or both of these issues, as we have in Elasticsearch, if we release 9.11 with this change? -Chris. [1] https://github.com/apache/lucene/pull/13392 [2] https://github.com/elastic/elasticsearch/pull/109006 [3] https://github.com/elastic/elasticsearch/pull/84168 [*] HPPC-186: A different strategy has been implemented for collision avalanche avoidance. This results in removal of Scatter* maps and sets and their unification with their Hash* counterparts. This change should not affect any existing code unless it relied on static, specific ordering of keys. A side effect of this change is that key/value enumerators will return a different ordering of their container's values on each invocation. If your code relies on the order of values in associative arrays, it must order them after they are retrieved. (Bruno Roustant). --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org
