Todd Lipcon has posted comments on this change. ( http://gerrit.cloudera.org:8080/11208 )
Change subject: IMPALA-7437. LRU caching of partitions in impalad ...................................................................... Patch Set 5: (2 comments) http://gerrit.cloudera.org:8080/#/c/11208/5/fe/src/main/java/org/apache/impala/catalog/local/CatalogdMetaProvider.java File fe/src/main/java/org/apache/impala/catalog/local/CatalogdMetaProvider.java: http://gerrit.cloudera.org:8080/#/c/11208/5/fe/src/main/java/org/apache/impala/catalog/local/CatalogdMetaProvider.java@235 PS5, Line 235: List<ColumnStatisticsObj> ret = Lists.newArrayListWithCapacity(colNames.size()); > what's the story for keeping track of how many rpc's are made and how long Yea, I was going to defer this and try to add a somewhat generic "request metrics" kind of support to the frontend, so we can then write some code to track numbers/counts of RPCs and expose them into each profile as well as on a global basis. I didn't want to let this patch get out of hand so left it out for now. http://gerrit.cloudera.org:8080/#/c/11208/5/fe/src/main/java/org/apache/impala/catalog/local/CatalogdMetaProvider.java@268 PS5, Line 268: ret.size() > should this be colNames.size()? perhaps we should also include the actual n yea, I actually ended up implementing the negative cache in a later patch in this series (not yet up on gerrit). I'll try to move that code back into this earlier patch. -- To view, visit http://gerrit.cloudera.org:8080/11208 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I9a57521ad851da605604a1e7c48d3d6627da5df5 Gerrit-Change-Number: 11208 Gerrit-PatchSet: 5 Gerrit-Owner: Todd Lipcon <t...@apache.org> Gerrit-Reviewer: Bharath Vissapragada <bhara...@cloudera.com> Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com> Gerrit-Reviewer: Tianyi Wang <tw...@cloudera.com> Gerrit-Reviewer: Todd Lipcon <t...@apache.org> Gerrit-Reviewer: Vuk Ercegovac <vercego...@cloudera.com> Gerrit-Comment-Date: Mon, 20 Aug 2018 19:12:27 +0000 Gerrit-HasComments: Yes
