Details

    • Release Note:
      ZOOKEEPER-3402 already implemented a more general approach which solves this issue as well.

      Description

      There is already a multi operation for delete, create, setData... However, getChildren has no version of getting the children of multiple nodes by one message.
      This could heavily improve the efficiency of a traversal (e.g. breadth-first search) when the latency is high (>1ms). In this case, a simple deleteAll algorithm on 10k nodes takes at least (1ms * 10000 * 2 =) 20 sec, only to acquire the list of the nodes selected for deleting (it has to check for every node whether it has children or not).
      I would add a version of getChildren function to the ZooKeeper API which accepts lists as well (containing node paths) and returns their children and introduce a new request type. This way the backward compabilty would not be hurt but ZK could provide a more robust solution for those who may have latency issues.

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                szepet Peter Szecsi
                Reporter:
                szepet Peter Szecsi
              • Votes:
                0 Vote for this issue
                Watchers:
                2 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved:

                  Time Tracking

                  Estimated:
                  Original Estimate - 336h
                  336h
                  Remaining:
                  Time Spent - 4.5h Remaining Estimate - 331.5h
                  331.5h
                  Logged:
                  Time Spent - 4.5h Remaining Estimate - 331.5h
                  4.5h