Vihang Karajgaonkar has posted comments on this change. ( http://gerrit.cloudera.org:8080/14846 )
Change subject: IMPALA-9195: Using multithreaded execution to accelerate 'show tables/databases' ...................................................................... Patch Set 7: (1 comment) http://gerrit.cloudera.org:8080/#/c/14846/7/fe/src/main/java/org/apache/impala/service/Frontend.java File fe/src/main/java/org/apache/impala/service/Frontend.java: http://gerrit.cloudera.org:8080/#/c/14846/7/fe/src/main/java/org/apache/impala/service/Frontend.java@859 PS7, Line 859: submit > I am ok with the static thread pool if we ensure that we do not regress too Sorry couldn't review earlier. Yes, by default if the thread pool size is one we should rely on the currentThread to do the access check, otherwise we are essentially creating a bottleneck for all client requests. Having a static threadpool still is helpful if the max concurrency is lower that the threadpool size. -- To view, visit http://gerrit.cloudera.org:8080/14846 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I860e0d18afa0421665f8b3b1c5561d6bdacc5e96 Gerrit-Change-Number: 14846 Gerrit-PatchSet: 7 Gerrit-Owner: Zhou Xu <[email protected]> Gerrit-Reviewer: Csaba Ringhofer <[email protected]> Gerrit-Reviewer: Impala Public Jenkins <[email protected]> Gerrit-Reviewer: Quanlong Huang <[email protected]> Gerrit-Reviewer: Tim Armstrong <[email protected]> Gerrit-Reviewer: Vihang Karajgaonkar <[email protected]> Gerrit-Reviewer: Zhou Xu <[email protected]> Gerrit-Comment-Date: Tue, 17 Dec 2019 21:13:23 +0000 Gerrit-HasComments: Yes
