[ https://issues.apache.org/jira/browse/IGNITE-11416?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16808458#comment-16808458 ]
Ivan Bessonov edited comment on IGNITE-11416 at 4/3/19 8:14 AM: ---------------------------------------------------------------- [~akalashnikov], [~DmitriyGovorukhin] I improved new test just like you asked, please take a look. Overall it feels like we can finally merge these changes. was (Author: ibessonov): [~akalashnikov], [~DmitriyGovorukhin] I improved new test just like you asked, please take a look. Otherwise it feels like we can finally merge these changes. > DistributedMetaStorage improvements > ----------------------------------- > > Key: IGNITE-11416 > URL: https://issues.apache.org/jira/browse/IGNITE-11416 > Project: Ignite > Issue Type: Improvement > Reporter: Ivan Bessonov > Assignee: Ivan Bessonov > Priority: Major > Fix For: 2.8 > > Time Spent: 20m > Remaining Estimate: 0h > > We need following improvements: > * do not write the same value twice in a row, this would lead to history > pollution; > * add "putAll" functionality on binary level, not in public API yet. This > would simplify the migration in future; > * do not use "*HistoryItem" class for everything, this is not conventional; > * retrieve "dmsVer" from cluster on handshake, this would help to reduce > joining node DataBag size drastically; > * add "isEmpty()" or "long getVersion()" method to metastorage, will be > helpful for components that use it; > * there has to be an ability to read data on client nodes, maybe write as > well, not sure yet; > * implement more optimal in-memory storage for history cache; > * start in-memory metastorage at proper time, current implementation does it > a bit too late. -- This message was sent by Atlassian JIRA (v7.6.3#76005)