Please open an issue in Jira (http://issues.apache.org/jira/browse/ZOOKEEPER) and assign it to me (randgalt / Jordan Zimmerman).
Thank you! -Jordan > On Jul 4, 2016, at 11:18 AM, Stefano Salmaso <[email protected]> > wrote: > > Hi Apache ZooKeeper community, > I would like to expose you to a problem that we are experiencing. > We are using a cluster of 7 zookeeper and we use them to implement a > distributed lock using Curator ( > http://curator.apache.org/curator-recipes/shared-reentrant-lock.html) > So .. we tried to play with the servers to see if everything worked > properly and we stopped and start servers to see that the system worked well > (like stop 03, stop 05, stop 06, start 05, start 06, start 03) > > We saw a strange behavior. > The number of znodes grew up without stopping (normally we had 4000 or > 5000, we got to 60,000 and then we stopped our application) > > In zookeeeper logs I saw this (on leader only, one every minute) > > 2016-07-04 14:53:50,302 [myid:7] - ERROR > [ContainerManagerTask:ContainerManager$1@84] - Error checking containers > java.lang.NullPointerException > at > org.apache.zookeeper.server.ContainerManager.getCandidates(ContainerManager.java:151) > at > org.apache.zookeeper.server.ContainerManager.checkContainers(ContainerManager.java:111) > at > org.apache.zookeeper.server.ContainerManager$1.run(ContainerManager.java:78) > at java.util.TimerThread.mainLoop(Timer.java:555) > at java.util.TimerThread.run(Timer.java:505) > > Have you notice of this? > Could be a bug? > > Kind regards, > Stefano. > > -- > [image: Bravofly Rumbo Group] > > Listed on SIX Swiss Exchange > > *Our websites*: lastminute.com | bravofly.com | volagratis.com | rumbo.es | > jetcost.com | group.lastminute.com > > This e-mail may contain confidential and/or privileged information. If you > are not the intended recipient (or have received this e-mail in error) > please notify the sender immediately and destroy this e-mail. Any > unauthorized copying, disclosure or distribution of the material in this > e-mail is strictly forbidden and could be a crime.
