Return-Path: X-Original-To: apmail-kafka-dev-archive@www.apache.org Delivered-To: apmail-kafka-dev-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 7888D189D2 for ; Thu, 14 Jan 2016 17:53:41 +0000 (UTC) Received: (qmail 16335 invoked by uid 500); 14 Jan 2016 17:53:40 -0000 Delivered-To: apmail-kafka-dev-archive@kafka.apache.org Received: (qmail 16219 invoked by uid 500); 14 Jan 2016 17:53:40 -0000 Mailing-List: contact dev-help@kafka.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@kafka.apache.org Delivered-To: mailing list dev@kafka.apache.org Received: (qmail 16172 invoked by uid 99); 14 Jan 2016 17:53:40 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 14 Jan 2016 17:53:40 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 757362C1F60 for ; Thu, 14 Jan 2016 17:53:40 +0000 (UTC) Date: Thu, 14 Jan 2016 17:53:40 +0000 (UTC) From: "Mohit Anchlia (JIRA)" To: dev@kafka.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (KAFKA-3102) Kafka server unable to connect to zookeeper MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/KAFKA-3102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15098512#comment-15098512 ] Mohit Anchlia commented on KAFKA-3102: -------------------------------------- I enabled debug and still not much info: [2016-01-14 12:52:47,541] DEBUG sessionid:0x1524142e5c20000 type:closeSession cxid:0x1 zxid:0x2 txntype:-11 reqpath:n/a (org.apache.zookeeper.server.FinalRequestProcessor) [2016-01-14 12:52:47,543] INFO Closed socket connection for client /0:0:0:0:0:0:0:1:52904 which had sessionid 0x1524142e5c20000 (org.apache.zookeeper.server.NIOServerCnxn) [2016-01-14 12:52:47,543] DEBUG Reading reply sessionid:0x1524142e5c20000, packet:: clientPath:null serverPath:null finished:false header:: 1,-11 replyHeader:: 1,2,0 request:: null response:: null (org.apache.zookeeper.ClientCnxn) [2016-01-14 12:52:47,543] DEBUG Disconnecting client for session: 0x1524142e5c20000 (org.apache.zookeeper.ClientCnxn) [2016-01-14 12:52:47,544] INFO Session: 0x1524142e5c20000 closed (org.apache.zookeeper.ZooKeeper) [2016-01-14 12:52:47,544] DEBUG Closing ZkClient...done (org.I0Itec.zkclient.ZkClient) [2016-01-14 12:52:47,544] DEBUG ignoring event '{None | null}' since shutdown triggered (org.I0Itec.zkclient.ZkClient) [2016-01-14 12:52:47,544] DEBUG Leaving process event (org.I0Itec.zkclient.ZkClient) [2016-01-14 12:52:47,544] DEBUG Received event: WatchedEvent state:SyncConnected type:None path:null (org.I0Itec.zkclient.ZkClient) [2016-01-14 12:52:47,544] DEBUG ignoring event '{None | null}' since shutdown triggered (org.I0Itec.zkclient.ZkClient) [2016-01-14 12:52:47,544] DEBUG Leaving process event (org.I0Itec.zkclient.ZkClient) [2016-01-14 12:52:47,544] INFO EventThread shut down (org.apache.zookeeper.ClientCnxn) [2016-01-14 12:52:47,545] FATAL Fatal error during KafkaServer startup. Prepare to shutdown (kafka.server.KafkaServer) org.I0Itec.zkclient.exception.ZkTimeoutException: Unable to connect to zookeeper server within timeout: 6000 at org.I0Itec.zkclient.ZkClient.connect(ZkClient.java:1223) > Kafka server unable to connect to zookeeper > ------------------------------------------- > > Key: KAFKA-3102 > URL: https://issues.apache.org/jira/browse/KAFKA-3102 > Project: Kafka > Issue Type: Bug > Components: security > Environment: RHEL 6 > Reporter: Mohit Anchlia > > Server disconnects from the zookeeper with the following log, and logs are not indicative of any problem. It works without the security setup however. > I followed the security configuration steps from this site: http://docs.confluent.io/2.0.0/kafka/sasl.html > In here find the list of principals, logs and Jaas file: > 1) Jaas file > KafkaServer { > com.sun.security.auth.module.Krb5LoginModule required > useKeyTab=true > storeKey=true > keyTab="/mnt/kafka/kafka/kafka.keytab" > principal="kafka/10.24.251.175@EXAMPLE.COM"; > }; > Client { > com.sun.security.auth.module.Krb5LoginModule required > useKeyTab=true > storeKey=true > keyTab="/mnt/kafka/kafka/kafka.keytab" > principal="kafka/10.24.251.175@EXAMPLE.COM"; > }; > 2) Principles from krb admin > kadmin.local: list_principals > K/M@EXAMPLE.COM > kadmin/admin@EXAMPLE.COM > kadmin/changepw@EXAMPLE.COM > kadmin/ip-10-24-251-175.us-west-2.compute.internal@EXAMPLE.COM > kafka/10.24.251.175@EXAMPLE.COM > krbtgt/EXAMPLE.COM@EXAMPLE.COM > [2016-01-13 16:26:00,551] INFO starting (kafka.server.KafkaServer) > [2016-01-13 16:26:00,557] INFO Connecting to zookeeper on localhost:2181 (kafka.server.KafkaServer) > [2016-01-13 16:27:30,718] FATAL Fatal error during KafkaServer startup. Prepare to shutdown (kafka.server.KafkaServer) > org.I0Itec.zkclient.exception.ZkTimeoutException: Unable to connect to zookeeper server within timeout: 6000 > at org.I0Itec.zkclient.ZkClient.connect(ZkClient.java:1223) > at org.I0Itec.zkclient.ZkClient.(ZkClient.java:155) > at org.I0Itec.zkclient.ZkClient.(ZkClient.java:129) > at kafka.utils.ZkUtils$.createZkClientAndConnection(ZkUtils.scala:89) > at kafka.utils.ZkUtils$.apply(ZkUtils.scala:71) > at kafka.server.KafkaServer.initZk(KafkaServer.scala:278) > at kafka.server.KafkaServer.startup(KafkaServer.scala:168) > at kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:37) > at kafka.Kafka$.main(Kafka.scala:67) > at kafka.Kafka.main(Kafka.scala) > [2016-01-13 16:27:30,721] INFO shutting down (kafka.server.KafkaServer) > [2016-01-13 16:27:30,727] INFO shut down completed (kafka.server.KafkaServer) > [2016-01-13 16:27:30,728] FATAL Fatal error during KafkaServerStartable startup. Prepare to shutdown (kafka.server.KafkaServerStartable) > org.I0Itec.zkclient.exception.ZkTimeoutException: Unable to connect to zookeeper server within timeout: 6000 > at org.I0Itec.zkclient.ZkClient.connect(ZkClient.java:1223) > at org.I0Itec.zkclient.ZkClient.(ZkClient.java:155) > at org.I0Itec.zkclient.ZkClient.(ZkClient.java:129) > at kafka.utils.ZkUtils$.createZkClientAndConnection(ZkUtils.scala:89) > at kafka.utils.ZkUtils$.apply(ZkUtils.scala:71) > at kafka.server.KafkaServer.initZk(KafkaServer.scala:278) > at kafka.server.KafkaServer.startup(KafkaServer.scala:168) > at kafka.server.KafkaServerStartable.startup(KafkaServerStartable.scala:37) > at kafka.Kafka$.main(Kafka.scala:67) > at kafka.Kafka.main(Kafka.scala) > [2016-01-13 16:27:30,729] INFO shutting down (kafka.server.KafkaServer) > "server.log" 156L, 6404C -- This message was sent by Atlassian JIRA (v6.3.4#6332)