[ https://issues.apache.org/jira/browse/IMPALA-12402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17758821#comment-17758821 ]
Maxwell Guo commented on IMPALA-12402: -------------------------------------- How can I assign this jira to myself ? I can't find the button. > 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 > Priority: Minor > Labels: pull-request-available > > 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