Charan Reddy Guttapalem created BOOKKEEPER-1096:
---------------------------------------------------
Summary: When ledger is deleted, along with leaf node all the
eligible branch nodes also should be deleted in ZooKeeper.
Key: BOOKKEEPER-1096
URL: https://issues.apache.org/jira/browse/BOOKKEEPER-1096
Project: Bookkeeper
Issue Type: Improvement
Reporter: Charan Reddy Guttapalem
Assignee: Charan Reddy Guttapalem
Currently when we delete a ledger, we delete just the leaf node in the ZK but
we ignore about the branch nodes. This is ok for FlatLedgerManager, but for
HierarchicalLedgerManagers, especially for LongHierarchicalLedgerManager, the
number of internal nodes gets blown up over time and we would get into ZK
capacity limitations. When ZK reaches the capacity limits, it will manifest in
very severe performance and stability issues of cluster. So for
HierarchicalLedgerManagers, when we delete a ledger we should optimistically
recursively delete the parent znodes as well if they don’t have anymore child
znodes.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
