[ https://issues.apache.org/jira/browse/BOOKKEEPER-518?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jiannan Wang updated BOOKKEEPER-518: ------------------------------------ Assignee: Jiannan Wang > Lazily load hedwig metadata for different types of requests > ----------------------------------------------------------- > > Key: BOOKKEEPER-518 > URL: https://issues.apache.org/jira/browse/BOOKKEEPER-518 > Project: Bookkeeper > Issue Type: Sub-task > Components: hedwig-client, hedwig-server > Reporter: Sijie Guo > Assignee: Jiannan Wang > Fix For: 4.3.0 > > > Currently, acquire a topic needs to load both persistence info and > subscriptions info at the same time. only after that, the topic acquisition > could succeed. but it seems that, for a sub/closesub/unsub request, we just > need subscription info. for a pub request, we just need persistence info. > especially, for a subscriber requests, we don't need to create a new ledger > if there is no messages. we could delay provisioning ledger when messages > arrive. otherwise, it introduced unnecessary metadata creation. > for some applications, lazily loading might be necessary. for some > applications, it might be not. it should be configurable. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira