[jira] [Created] (ZOOKEEPER-3301) do a hard constraint on the "setquota",make it can really control the data size and child counts of one node.

["maoling (JIRA)" <ji...@apache.org>]

maoling created ZOOKEEPER-3301:
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             Summary: do a hard constraint on the "setquota",make it can really control the data size and child counts of one node.
                 Key: ZOOKEEPER-3301
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3301
             Project: ZooKeeper
          Issue Type: Sub-task
            Reporter: maoling


We need a complete quota feature, not just the printing the warning logs which is a bit chicken ribs.

[zk: localhost:2181(CONNECTED) 18] setquota -n 2 /quota_test
[zk: localhost:2181(CONNECTED) 19] create /quota_test/child_1
Created /quota_test/child_1
[zk: localhost:2181(CONNECTED) 20] create /quota_test/child_2
Created /quota_test/child_2
[zk: localhost:2181(CONNECTED) 21] create /quota_test/child_3
Created /quota_test/child_3

look at the following logs:
2019-03-07 11:22:36,680 [myid:1] - WARN [SyncThread:0:DataTree@374] - Quota exceeded: /quota_test count=3 limit=2
2019-03-07 11:22:41,861 [myid:1] - WARN [SyncThread:0:DataTree@374] - Quota exceeded: /quota_test count=4 limit=2



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