enixon commented on a change in pull request #899: ZOOKEEPER-3354: Improve
efficiency of DeleteAllCommand
URL: https://github.com/apache/zookeeper/pull/899#discussion_r285428907
##########
File path: zookeeper-server/src/main/java/org/apache/zookeeper/ZKUtil.java
##########
@@ -45,20 +48,67 @@
*
* @throws IllegalArgumentException if an invalid path is specified
*/
- public static void deleteRecursive(ZooKeeper zk, final String pathRoot)
+ public static boolean deleteRecursive(ZooKeeper zk, final String pathRoot)
throws InterruptedException, KeeperException
{
PathUtils.validatePath(pathRoot);
List<String> tree = listSubTreeBFS(zk, pathRoot);
LOG.debug("Deleting " + tree);
LOG.debug("Deleting " + tree.size() + " subnodes ");
- for (int i = tree.size() - 1; i >= 0 ; --i) {
- //Delete the leaves first and eventually get rid of the root
- zk.delete(tree.get(i), -1); //Delete all versions of the node with
-1.
+
+ int asyncReqRateLimit = 10;
+ // Try deleting the tree nodes in batches of size 1000.
+ // If some batch failed, try again with batches of size 1 to delete as
+ // many nodes as possible.
Review comment:
Now that batch mode is configurable, this more conservative approach is
making more sense to me.
Alternate idea - the tool swallows all errors until it has tried deleting
every node and then presents all errors as a single aggregate instead of
halting at the first error and presenting it.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
With regards,
Apache Git Services
