Gergely Fürnstáhl has posted comments on this change. ( http://gerrit.cloudera.org:8080/18191 )
Change subject: IMPALA-9433: Improved caching of HdfsFileHandles ...................................................................... Patch Set 21: (1 comment) http://gerrit.cloudera.org:8080/#/c/18191/21/be/src/util/lru-multi-cache.h File be/src/util/lru-multi-cache.h: http://gerrit.cloudera.org:8080/#/c/18191/21/be/src/util/lru-multi-cache.h@170 PS21, Line 170: Container_internal& container; : typename Container_internal::iterator it; > I haven't tried this, but here is something that might work: Started to implement with boost::optional, could work for Release/Destroy, but not for eviction. EvictOne only sees the ValueType_internal object through the LRU list, that's why I put the self referencing iterator there in the beginning. I could add another layer of indirection, not using the ValueType_internal as the LruList's inner type, rather a seperate inner class which has a Container::iterator member and the intrusive list hook, but that somewhat loses the point of the intrusive list, I don't really like it -- To view, visit http://gerrit.cloudera.org:8080/18191 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I6b5c5e9e2b5db2847ab88c41f667c9ca1b03d51a Gerrit-Change-Number: 18191 Gerrit-PatchSet: 21 Gerrit-Owner: Gergely Fürnstáhl <[email protected]> Gerrit-Reviewer: Csaba Ringhofer <[email protected]> Gerrit-Reviewer: Gergely Fürnstáhl <[email protected]> Gerrit-Reviewer: Impala Public Jenkins <[email protected]> Gerrit-Reviewer: Joe McDonnell <[email protected]> Gerrit-Reviewer: Zoltan Borok-Nagy <[email protected]> Gerrit-Comment-Date: Fri, 25 Feb 2022 11:24:23 +0000 Gerrit-HasComments: Yes
