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ASF GitHub Bot commented on ZOOKEEPER-2260: ------------------------------------------- GitHub user mprimi opened a pull request: https://github.com/apache/zookeeper/pull/50 ZOOKEEPER-2260: Paginated getChildren call Motivation - Allow listing children that normally would exceed the buffer limit - Get stat for children in the same call as the list Modifications - Implemetation of DataTree#getPaginatedChildren - Added the call to the zk client - Handle the call in the FinalRequestProcessor - Added PathWithStat, GetChildrenPaginatedRequest and GetChildrenPaginatedResponse to the protos - Added tests for pagination and watch You can merge this pull request into a Git repository by running: $ git pull https://github.com/mprimi/zookeeper ZOOKEEPER-2260 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/zookeeper/pull/50.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #50 ---- commit cfc4e2f9ea8582456e8de120b874301cfd7196b9 Author: Marco Primi <mpr...@apple.com> Date: 2015-12-14T21:41:28Z ZOOKEEPER-2260: Paginated getChildren call Motivation Being able to get children with pagination. Two main benefits: - Allow listing children that normally would exceed the buffer limit - Get stat for children in the same call as the list Modifications - Implemetation of DataTree#getPaginatedChildren - Added the call to the zk client - Handle the call in the FinalRequestProcessor - Added PathWithStat, GetChildrenPaginatedRequest and GetChildrenPaginatedResponse to the protos - Added tests for pagination and watch ---- > Paginated getChildren call > -------------------------- > > Key: ZOOKEEPER-2260 > URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2260 > Project: ZooKeeper > Issue Type: New Feature > Affects Versions: 3.4.5, 3.4.6, 3.5.0, 4.0.0 > Reporter: Marco P. > Priority: Minor > Labels: api, features > Fix For: 4.0.0 > > Attachments: ZOOKEEPER-2260.patch > > > Add pagination support to the getChildren() call, allowing clients to iterate > over children N at the time. > Motivations for this include: > - Getting out of a situation where so many children were created that > listing them exceeded the network buffer sizes (making it impossible to > recover by deleting)[1] > - More efficient traversal of nodes with large number of children [2] > I do have a patch (for 3.4.6) we've been using successfully for a while, but > I suspect much more work is needed for this to be accepted. > [1] https://issues.apache.org/jira/browse/ZOOKEEPER-272 > [2] https://issues.apache.org/jira/browse/ZOOKEEPER-282 -- This message was sent by Atlassian JIRA (v6.3.4#6332)