Zookeper users Recent threads

Threads	Replies	First post	Last post
Unexpected NodeCreated with 3.4.3? By: César Álvarez Núñez Hi All, I'm receiving a NodeCreated instead of a NodeDataChanged just after a Disconnected+SyncConnected. Perhaps it is needed to always call the "sync" method after a Disconnect + [Expired] + SyncConnected? Attached are a txt file with the use…	3	May 24 2012 12:33	May 25 2012 06:21
fail connect to zookeeper By: Yosef Arraf Hi, I'm faceing a problem when i'm working with cluster zookeper and one of the cluser servers is down: when zk01:2181 is down the following code will fail: String servers = "zk01:2181,zk01:2181"; _zkclient = new ZkClient(servers, 4000,…	2	May 22 2012 23:08	May 24 2012 23:47
Distribution Problems With Multiple Zookeeper Clients By: Narasimha Tadepalli Dear All We have a situation where messages are not distributed equally when we have multiple clients listening to one zookeeper cluster. Say we have 30 client instances listing to one cluster and when 1000 messages submitted in 30 mins to cluster…	9	May 15 2012 12:29	May 24 2012 19:40
sasl authentication is given to the user during create nodes, node deletion is happening with 'delet By: Rakesh R Hi All, I'm trying to use the ZooKeeper sasl. Actually I'm a bit confused when using the delete command. Say, I have created two znodes: 'app1' directly under '/' with…	1	May 22 2012 05:53	May 24 2012 19:18
WatchedEvent class missing from r3.3.5 documentation By: David Nickerson The stable verson of ZooKeeper is release 3.3.5. The WatchedEvent class is part of the public API, but the r3.3.5 documentation is missing the WatchedEvent…	1	May 21 2012 11:56	May 24 2012 19:15
Sasl issue: ServerSaslResponseCallback(): using empty data By: Antonio Mauriello Hi, In a specif scenario where the Zookeeper Server get killed and restarted while a java zk client is connected I get the following in the log: (Please note the Error at bottom) [main-SendThread(localhost:60728)] DEBUG…	1	May 18 2012 10:41	May 24 2012 19:07
New Instance can't sync By: Jordan Zimmerman I'm trying to add a new instance to the ensemble and it is throwing while trying to sync. Any ideas? 2012-05-24 20:21:08,751 - WARN [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOSer### @639] - Exception causing close of session 0x0 due to…	2	May 24 2012 15:23	May 24 2012 17:46
ACL questions By: waynesj Hi I'm delving into zookeeper and trying to wrap my head around ACL access. As I understand from reading the ACL section of the programing guide, I s/b able to create a znode with a set ACLs that I can partition access to znode with? I'm able…	1	May 24 2012 14:31	May 24 2012 17:10
How to delete ZNode with 200K items By: Jordan Zimmerman We have a node that has 200K items and would like to delete them. getChildren() keeps failing. Is there anything that can be done? -JZ	2	May 24 2012 16:18	May 24 2012 17:09
ZooKeeper's resident set size grows but does not shrink By: Brian Oki Hello, We use ZooKeeper 3.3.3. On a 3-node site, we've been using Patrick Hunt's publicly available latencies test suite to create scenarios that will help us to understand the memory, CPU and disk requirements for a deployment of ZooKeeper for…	2	May 23 2012 19:41	May 24 2012 09:39
The State of Python Zookeeper libraries and collaboration By: Ben Bangert It would seem that about 6 months or ago or so, there wasn't much out there in terms of higher level Python libs for Zookeeper. There was the Cloudera article on queues, and txzookeeper (which I'm sure many of us not using twisted immediately…	9	May 16 2012 19:51	May 21 2012 23:18
How to recover previous watcher & event after "session expired" By: ??? Hi, All I'm dealing with the case of "session expired" event. Please help me with the following question. 1. After receive "session expired" event, how to recover the watch that are setting before expired gracefully? 2.Currently, I record the…	4	May 18 2012 11:19	May 20 2012 09:34
cluster member was switched to standalone, detectable? By: Adam Rosien We have a 5-member 3.3.3 cluster. One of the node's configurations was accidentally changed, and that node went into "standalone" mode, thinking it was a single-node cluster. However, all our zk clients still had the address of this server, and…	6	May 18 2012 12:35	May 18 2012 17:21
When Zookeeper 3.4.4 release? By: Antonio Mauriello Hi, Is there a release date for Zookeeper 3.4.4 ? Regards Antonio	4	May 17 2012 10:00	May 18 2012 12:59
Multi question on using previous ops results By: Joe Gamache I need to do something like the following: Stat stats = nodeToSet.getStat(); if (stats != null) { int version = stats.getVersion(); stats = client.getZk().setData(path, data, version); (data was preset in code not shown). Since I have…	4	May 16 2012 10:59	May 18 2012 11:47
Exceeded deadline by 16ms By: Deepak Jagtap Hi All, I am using Zookeeper 3.4.3 sever and my setup is as follows: I have a Quorum of 3 Zookeepers servers (installed on 3 virtual machines) on my laptop. Then I start 12 Zookeeper client processes on the same machine which start updates on…	6	May 16 2012 18:39	May 18 2012 00:36
FYI - Deadlock analysis with Exhibitor By: Jordan Zimmerman FYI Exhibitor has a new feature: deadlock detection. It can look at a set of ZNodes that implement a lock recipe and determine if there's a potential deadlock. Details here: https://github.com/Netflix/exhibitor/wiki/Lock-Analyzer	0	May 17 2012 18:15	May 17 2012 18:15
Zookeeper multiserver setup? By: Something Something Hello, Trying to follow directions from here: http://zookeeper.apache.org/doc/trunk/zookeeperAdmin.html#sc_zkMulitSe rverSetup to setup a cluster of zookeepers. Questions: 1) If everything is setup correctly, do I have to go to each machine and…	12	May 8 2012 16:31	May 17 2012 16:27
SaslAuthenticated By: Jordan Zimmerman When using SASL authentication, waiting for SysConnected isn't enough. Clients need to wait for SaslAuthenticated as well before calling ZK methods. Is there a way for a library such as Curator to know that SASL is enabled so that it can know that…	1	May 17 2012 02:24	May 17 2012 11:51
Does Zookeeper Lock Entire Znode Tree During a Write By: dmly Hi, Does ZK lock the entire znode tree during a write? Or does ZK just locks the top most znode that a client is connecting to? For example: When I connect to "/doug" and create the "doug/lock-001" node and do and update, is "/" locked or just…	4	May 15 2012 10:37	May 15 2012 16:57