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Maxwell Guo edited comment on IMPALA-12402 at 8/31/23 7:23 AM: --------------------------------------------------------------- [gerrit link|http://gerrit.cloudera.org:8080/20443] and it is ready for review agagin now. [Build passed |https://jenkins.impala.io/job/gerrit-code-review-checks/13892/] was (Author: maxwellguo): [gerrit link|http://gerrit.cloudera.org:8080/20443] and it is ready for review agagin now. [Build passed https://jenkins.impala.io/job/gerrit-code-review-checks/13892/] > Add some configurations for CatalogdMetaProvider's cache_ > --------------------------------------------------------- > > Key: IMPALA-12402 > URL: https://issues.apache.org/jira/browse/IMPALA-12402 > Project: IMPALA > Issue Type: Improvement > Components: fe > Reporter: Maxwell Guo > Assignee: Maxwell Guo > Priority: Minor > Labels: pull-request-available > Attachments: > 0001-IMPALA-12402-Add-some-configurations-for-CatalogdMet.patch > > > when the cluster contains many db and tables such as if there are more than > 100000 tables, and if we restart the impalad , the local cache_ > CatalogMetaProvider's need to doing some loading process. > As we know that the goole's guava cache 's concurrencyLevel os set to 4 by > default. > but if there is many tables the loading process will need more time and > increase the probability of lock contention, see > [here|https://github.com/google/guava/blob/master/guava/src/com/google/common/cache/CacheBuilder.java#L437]. > > So we propose to add some configurations here, the first is the concurrency > of cache. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-all-unsubscr...@impala.apache.org For additional commands, e-mail: issues-all-h...@impala.apache.org