[
https://issues.apache.org/jira/browse/CURATOR-430?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16125336#comment-16125336
]
hebelala commented on CURATOR-430:
----------------------------------
Yes, I have test. Please see the code, and debug it.
The debug breakpoints are *step1*, *step2*, and *ZkPaths.deleteChildren ->
List<String> children = zookeeper.getChildren(path, null);*
{code:java}
public static void main(String[] args) {
try {
TestingServer server = new TestingServer();
server.start();
final CuratorFramework curatorFramework =
CuratorFrameworkFactory.builder().connectString(server.getConnectString()).sessionTimeoutMs(600
* 1000).retryPolicy(new RetryNTimes(3, 1000)).build();
curatorFramework.start();
curatorFramework.blockUntilConnected();
curatorFramework.create().creatingParentsIfNeeded().forPath("/a/1");
curatorFramework.create().creatingParentsIfNeeded().forPath("/a/2");
// try to delete /a
new Thread(new Runnable() {
public void run() {
try {
// step1
// deleting sequence is: /a/2, /a/1, /a
curatorFramework.delete().deletingChildrenIfNeeded().forPath("/a");
} catch (Exception e) {
e.printStackTrace();
try {
// the /a/1 is existing, because step2 delete /a/2,
causes step1 throw NoNodeException(/a/2). It's not expected.
Stat stat =
curatorFramework.checkExists().forPath("/a/1");
System.out.println("checkExits:" + stat);
} catch (Exception e1) {
e1.printStackTrace();
}
}
}
}).start();
Thread.sleep(1000L);
// step2
// delete /a/2, when step1 try to delete /a/2 and is going to
zookeeper.getChildren("/a/2", null)
curatorFramework.delete().forPath("/a/2");
System.out.println("ok");
Thread.sleep(1000L);
} catch (Exception e) {
e.printStackTrace();
} finally {
System.exit(0);
}
}
{code}
> deletingChildrenIfNeeded maybe cannot delete children completely when
> multi-client delete concurrently
> ------------------------------------------------------------------------------------------------------
>
> Key: CURATOR-430
> URL: https://issues.apache.org/jira/browse/CURATOR-430
> Project: Apache Curator
> Issue Type: Bug
> Components: Client
> Reporter: hebelala
>
> use curatorFramework.delete().deletingChildrenIfNeeded().forPath(path), this
> sync api doesn't ignore the NoNodeException, causes the rest of children
> nodes will not be deleted perhaps.
> zookeeper.getChildren(path, null) maybe throw NoNodeException, if the path
> doesn't exist.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
