All my builds are on RHEL 7.4, and while I have set each system up they keep falling down. Initial state: machine A: zk1(follower) zk2(leader) machine B: zk3(follower) zk1 and zk2 are stopped (in that order). Zookeeper quorum is down and Zookeeper status reports "This ZooKeeper instance is not currently serving requests" Number of Views 7.03K Zookeeper Server unable to join quorum - "Unable to load database on disk" The text was updated successfully, but these errors were encountered: I don't maintain library/zookeeper:3.5.6. Whenever we feel the need of restarting the zookeepers, we do one at a time. Zookeeper version is zookeeper-3.4.6. Zookeeper quorum is down and Zookeeper status reports "This ZooKeeper instance is not currently serving requests" Number of Views 7.03K Zookeeper Server unable to join quorum - "Unable to load database on disk" zoo1, zoo2, and zoo3 unhealthy (This ZooKeeper instance is not currently serving requests) waited 5 minutes to see if they resolve Sep 17 14:39 - Sep 17 14:44; tried restarting in this order: zoo2, zoo3, zoo1 and no change; all still unhealthy (this step was not collected in the log files). I assume I missed something in a configuration file. Thanks for the reply. I am currently going through O'reilley zookeeper book. I've looked over the zookeeper documentation against, tried finding this with a search engine, and examined a running zookeeper instance using jconsole, but I can not figure out how to kill the zookeeper process using JMX. The problem is inside the web UI I see a message No master is currently leading ... and when I ssh to any of the 3 master machines and run echo srvr | nc localhost 2182 I get This ZooKeeper instance is not currently serving requests on all of them. I'm trying to setup a Mesos cluster in AWS VPC. bsherman@zk1:~$ nc localhost 2181 <<< mntr This ZooKeeper instance is not currently serving requests bsherman@zk1:~$ nc localhost 2181 <<< ruok imok I'm running 3.4.9. Zookeeperä¸è¬ä¼åºç°ä»¥ä¸ä¸¤ç§æ éï¼1. Zookeeperè¿ç¨ææï¼2. This file contains useful logs in when debugging Zookeeper starting issues. We’ll occasionally send you account related emails. ZooKeeper instance is not currently serving requests and those are getting active. Add the following code block to the bottom of the checks.d/zk.py file. Please use the Docker "Official Image" for zookeeper and see if the issue still persists. Active 4 years, 10 months ago. This ZooKeeper instance is not currently serving requests. Cependant la perte des membres introduit une fenêtre dâindisponibilité. â05-14-2019 Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. $ echo stat | nc localhost 2181 This ZooKeeper instance is not currently serving requests Then it indicates that specific ZooKeeper node(s) is not serving requests. Viewed 843 times 0. To test locally: Make sure you have zookeeper running locally on the default port. I have a couple of general question about zookeeper. æ¥è¿ä¸ªå¼å¸¸çåå å°±æ¯é群没æéåºæ¥leaderï¼å½é群éçç»ç¹åªå©ä¸ä¸å°ï¼æè ä¸è¶³åæ°æ¶ï¼å°±ä¼åºç°è¿ä¸ªé误æ示ã. Using 9 nodes (Yes that my production, btw. All actice node gettting below info, é对zookeeperè¿ç¨ççæ§ï¼ç´æ¥çæ§å¨è¿ç¨æ¯å¦åå¨å³å¯ï¼ï¼zookeeperè¿ç¨ååï¼QuorumPeerMai Check the ZooKeeper logs on the specific node and try to locate any errors causing the ZooKeeper to be down. Is it a good or a Bad idea to expose our zookeeper instance to public with authentication ofcourse? This ZooKeeper instance is not currently serving requests. å¯æ¯ä¸ºä»ä¹æ²¡æéåºæ¥leaderå¢ï¼æ¥äºä¸ä¸æç»æ¯å 为ç½ç»ä¸éï¼é£å°±é²ç«å¢å¼æ¾ç«¯å£2181ï¼ç»æè¿æ¯ä¸è¡ã. edu.uw.zookeeper.client.cli.ShellInvoker ; Modifier and Type Constant Field Value; protected static final String: DEFAULT_PROMPT "%s $ "edu.uw.zookeeper.common.SimpleArguments ; Modifier and Type Constant Field Value; protected static final String: OPT_HELP "help" edu.uw.zookeeper.common.SimpleArguments.SimpleOption ; ⦠maybe it needs to be fixed and changed to https://github.com/docker-library/official-images#what-are-official-images ? There are two ways we restart the zookeepers, The message âThis ZooKeeper instance is not currently serving requestsâ message indicates that this node started but is not functioning. @enixon. Sign in So I tried this command for zk02 and zk03: 2181- the client port for Apache Kafka or other clients 4.2. Have a question about this project? This ZooKeeper instance is not currently serving requests When one of your zookeeper nodes is sending you this message, that means that your Zookeeper cluster hasnât started in the right order. A ZooKeeper node in the ensemble may become unhealthy and be unable to respond to client requests. Already on GitHub? This ZooKeeper instance is not currently serving requests. 3888- the port for lea⦠If you get the dreaded "this zookeeper instance is currently not serving requests" message then something has gone wrong, check the ZK config file (detailed below), check all IPs are correct and that all instances can contact each other. zoo.cfg on all servers: server.0=zoo0:2888:3888 server.1=zoo1:2888:3888 server.2=zoo2:2888:3888 but: on ZOO0: [xxx@zoo0]$ cat /var/zookeeper/myid 1 [xxx@zoo0]$ echo conf | nc localhost 2181 This ZooKeeper instance is not currently serving requests on ZOO1: [xxx@zoo1] $ cat /var/zookeeper/myid 0 [xxx@zoo1:~]$ echo conf | nc localhost 2181 | grep serverId serverId=0 on ZOO2: [xxx@zoo2:~]$ cat /var/zookeeper⦠ZooKeeper instance is not currently serving reques... RAPIDS ML Runtimes are now available for Open GPU Data Science, Admins can now update the configuration of Cloudera Machine Learning Workspaces on Azure, Cloudera Machine Learning now conducts Validation Checks while provisioning a new Workspace, Applied ML Prototypes in Cloudera Machine Learning can now pull from repositories stored in Azure Repos, ML Runtimes in Cloudera Machine Learning now support Add Ons such as Spark. Some details about my scenario: 1. To do maintenance job, I shut down zk01 and replace it with a new node, which is still called zk01. Steps to reproduce the behavior. By clicking “Sign up for GitHub”, you agree to our terms of service and you have a 3 instance ensemble and 2 instances are down. @Ekshunya-India: Hello Team, I am completely new to zookeeper. 2888- port for ZooKeeper to connect to other ZooKeeper peers to coordinate 4.3. and 2 are not responding showing below line, ZooKeeper instance is not currently serving requests, Zookeeper version: 3.4.6-4--1, built on 02/11/2016 06:47 GMT, I tried to restart for all active node of zk server, I have noticed this instance are kept on swapping with other passive nodes which are throwing an. However, I got error message "This ZooKeeper instance is not currently serving requests" when I ran "echo stat | nc zk01 2181". Zookeeper quorum is down and Zookeeper status reports "This ZooKeeper instance is not currently serving requests" May 3, 2018 ⢠Generic - Issue Resolution Information It is because the first machine is waiting for another member of ⦠Setup the dd-agent repo as explained in the readme. but I don't know which ones to look at. ansible-playbook -l beta playbook.yml echo stats | nc beta 2181 This ZooKeeper instance is not currently serving requests Repeat this until server 5 (epsilon). Escape character is '^]'. Solution: Restart your cluster (node per node), starting from node 1 (as stated in zoo.conf) we tried above command for all 5 zk servers only 3 got responded. I didn't notice that library/zookeeper and zookeeper are the same. Please clarify me, Find answers, ask questions, and share your expertise. Is this normal behavior, does ZK server will active only 3 servers at a time and 2 will be passive mode? Following is a partial screenshot from https://hub.docker.com/_/zookeeper/. This ZooKeeper instance is not currently serving requests. I am trying to stand up a simple quorum and configure kafka and zookeeper to handle large to very large sized payloads. and 2 are not responding showing below line. if __name__ == '__main__': import json check, instances = ZookeeperCheck.from_yaml('/home/vagrant/src/dd-agent/conf.d/zk.yaml.example') for instance in instances: check.check(instance⦠This ZooKeeper instance is not currently serving requests When one of your zookeeper nodes is sending you this message, that means that your Zookeeper cluster hasn’t started in the right order. [root@master bin]# This ZooKeeper instance is not currently serving requestsUnable to read additional data from server sessionid 0x0, likely server has closed socket, closing socket connection and attempting reconnect。 enixon. This ZooKeeper instance is not currently serving requests Wrap Up. Hi all, My ZooKeeper ensemble contains 3 servers, unfortunately somehow servers ids have been messed up. Use the Linux command echo srvr | nc localhost 2181 for the role of the tested node, whether itâs a leader or a follower node. Zookeeper fonctionne en fournissant un espace mémoire partagé par toutes les instances dâun même ensemble de serveurs Zookeeper. Raspberry Pi is pretty cheap in case you wanna try it out yourself) 2. I ran docker-compose up -d with almost the same docker-compose.yml as yours: But mostly, one of 3 zk nodes doesn't serve on srvr command via netcat. "ZooKeeper CLI Client\nType \'?\' at the prompt to get started." I have a zookeeper cluster with 3 nodes: zk01, zk02 and zk03. [mike_w_wong@slave1 ~]$ sudo echo 'stat'| nc slave1.c.my-project-1519895027175.internal 2181 This ZooKeeper instance is not currently serving requests [mike_w_wong@slave2 ~]$ sudo echo 'stat'| nc slave2.c.my-project-1519895027175.internal 2181 This ZooKeeper instance is not currently serving requests; Checking the zoo.cfg now Connection closed by foreign host. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. We have 5 Zookeepers in our cluster, however, ZooKeeper instance is not currently serving requests. When we restart a zookeeper, it doesn't successfully join the cluster and start serving clients. This could be because: 1. org.apache.zookeeper.server.command.AbstractFourLetterCommand ; Modifier and Type Constant Field Value; public static final String: ZK_NOT_SERVING "This ZooKeeper instance is not currently serving requests" This cannot be set through the zookeeper ⦠ZooKeeper instance is not currently serving requests. Ports: 4.1. ... not that it currently has that capability. zookeeper集群启动失败这里不介绍安装步骤，下面是验证服务是否启动时的结果，主要异常是This ZooKeeper instance is not currently serving requests[root@localhost bin]# telnet 127.0.0.1 2181Trying 127.0.0.1...Connected to 127.0.0.1.Escape cha You signed in with another tab or window. echo "srvr stat" |nc xxxxxxxxx 2181. we tried above command for all 5 zk servers only 3 got responded. privacy statement. [mike_w_wong@slave1 ~]$ sudo echo 'stat'| nc slave1.c.my-project-1519895027175.internal 2181 This ZooKeeper instance is not currently serving requests [mike_w_wong@slave2 ~]$ sudo echo 'stat'| nc slave2.c.my-project-1519895027175.internal 2181 This ZooKeeper instance is not currently serving requests; Checking the zoo.cfg now Closing it because the issue seems to be inactive for quite some time now. 02:52 AM, We have 5 Zookeepers in our cluster, however, ZooKeeper instance is not currently serving requests. stat This ZooKeeper instance is not currently serving requests Connection closed by foreign host. Do you think ⦠Un ensemble Zookeeper est capable de se remettre de la perte de ces membres tant que le quorum peut-être atteint. to your account. Cet espace mémoire est hiérarchique, à la manière dâun système de fichier composé de répertoires et de fichiers à la différence que, dans le cas de Zookeeper, on ne parle pas de répertoires et de fichiers mais de nÅuds. I'm facing a problem when zookeeper is reconfiguring a cluster. I also can't ping between the 3 servers. We see the zookeeper services starts successfully, but it stays ideal and throws the message: "This ZooKeeper instance is not currently serving requests" The Zookeeper cluster size is 5. ZooKeeper logs are available in the following directory: Whether I run it on my macos or in ubuntu16, same error for my case :(. Created E.g. 1. Starting beta ZooKeeper server 2 and check with netcat.
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