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Posted to issues@zookeeper.apache.org by "Johan Forssell (Jira)" <ji...@apache.org> on 2021/03/09 09:07:00 UTC

[jira] [Comment Edited] (ZOOKEEPER-4238) NullPointerException in ContainerManager is still a thing

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-4238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17297952#comment-17297952 ] 

Johan Forssell edited comment on ZOOKEEPER-4238 at 3/9/21, 9:06 AM:
--------------------------------------------------------------------

Starting the app with Docker run does NOT trigger this error, as starting it with Docker Compose


{noformat}
#!/bin/sh
docker run \
  --name COMPANY-zookeeper \
  --restart unless-stopped \
  -e ZOO_PORT:"2181" \
  -e ZOO_SERVERS:"server.1=zookeeper:2888:3888" \
  -p 2181:2181 \
  --network COMPANY \
  --hostname zookeeper \
  --volume ~/dev/vx-docker-repo/.env/zookeeper_data:/var/lib/zookeeper/data  \
  --volume ~/dev/vx-docker-repo/.env/zookeeper_txn_logs:/var/lib/zookeeper/log  \
  zookeeper
{noformat}



was (Author: johanforssell):
Starting the app with Docker run does NOT trigger this error, as starting it with Docker Compose


{noformat}
#!/bin/sh
docker run \
  --name vxboss-zookeeper \
  --restart unless-stopped \
  -e ZOO_PORT:"2181" \
  -e ZOO_SERVERS:"server.1=zookeeper:2888:3888" \
  -p 2181:2181 \
  --network vxboss \
  --hostname vxboss \
  --volume ~/dev/vx-docker-repo/.env/zookeeper_data:/var/lib/zookeeper/data  \
  --volume ~/dev/vx-docker-repo/.env/zookeeper_txn_logs:/var/lib/zookeeper/log  \
  zookeeper
{noformat}


> NullPointerException in ContainerManager is still a thing
> ---------------------------------------------------------
>
>                 Key: ZOOKEEPER-4238
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4238
>             Project: ZooKeeper
>          Issue Type: Bug
>    Affects Versions: 3.5.9, 3.6.2
>         Environment: - Macbook Pro M1 2020
> - [Docker Desktop preview 3.1.0|https://docs.docker.com/docker-for-mac/apple-m1/] (2021-02-11)
> - Docker image *zookeeper:3.6.2* (LATEST) on *OS/ARCH: linux/arm64/v8*
> I'm starting the instance with 
> {{> docker-compose up zookeeper}}
> {noformat}
> version: '3.5'
> services:
>   zookeeper:
>     image: zookeeper
>     container_name: COMPANY-zookeeper
>     restart: unless-stopped
>     hostname: zookeeper
>     ports:
>       - "2181:2181"
>     environment:
>       ZOO_PORT: 2181
>       ZOO_SERVERS: server.1=zookeeper:2888:3888
>     volumes:
>       - ../.env/zookeeper_data:/var/lib/zookeeper/data
>       - ../.env/zookeeper_txn_logs:/var/lib/zookeeper/log
>     networks:
>       - COMPANY
> {noformat}
>            Reporter: Johan Forssell
>            Priority: Blocker
>         Attachments: excerpt-from-log.txt
>
>
> I'm running Zookeeper from the latest docker image. Also tried 3.5.9.
> After 1 minute I´m getting the same error as in ZOOKEEPER-2464: NPE in {{ContainerManager.getCandidates(ContainerManager.java:161)}}
> {noformat}
> ...
> COMPANY-zookeeper | 2021-03-09 07:57:21,320 [myid:1] - INFO  [main:Server@399] - Started @445ms
> COMPANY-zookeeper | 2021-03-09 07:57:21,320 [myid:1] - INFO  [main:JettyAdminServer@182] - Started AdminServer on address 0.0.0.0, port 8080 and command URL /commands
> COMPANY-zookeeper | 2021-03-09 07:57:21,321 [myid:1] - INFO  [main:ContainerManager@83] - Using checkIntervalMs=60000 maxPerMinute=10000 maxNeverUsedIntervalMs=0
> COMPANY-zookeeper | 2021-03-09 07:57:21,322 [myid:1] - INFO  [main:ZKAuditProvider@42] - ZooKeeper audit is disabled.
> COMPANY-zookeeper | 2021-03-09 07:58:21,331 [myid:1] - ERROR [ContainerManagerTask:ContainerManager$1@102] - Error checking containers
> COMPANY-zookeeper | java.lang.NullPointerException
> COMPANY-zookeeper | 	at org.apache.zookeeper.server.ContainerManager.getCandidates(ContainerManager.java:161)
> COMPANY-zookeeper | 	at org.apache.zookeeper.server.ContainerManager.checkContainers(ContainerManager.java:128)
> COMPANY-zookeeper | 	at org.apache.zookeeper.server.ContainerManager$1.run(ContainerManager.java:96)
> COMPANY-zookeeper | 	at java.base/java.util.TimerThread.mainLoop(Unknown Source)
> COMPANY-zookeeper | 	at java.base/java.util.TimerThread.run(Unknown Source)
> COMPANY-zookeeper | 2021-03-09 07:59:21,326 [myid:1] - ERROR [ContainerManagerTask:ContainerManager$1@102] - Error checking containers
> COMPANY-zookeeper | java.lang.NullPointerException
> COMPANY-zookeeper | 	at org.apache.zookeeper.server.ContainerManager.getCandidates(ContainerManager.java:161)
> COMPANY-zookeeper | 	at org.apache.zookeeper.server.ContainerManager.checkContainers(ContainerManager.java:128)
> COMPANY-zookeeper | 	at org.apache.zookeeper.server.ContainerManager$1.run(ContainerManager.java:96)
> COMPANY-zookeeper | 	at java.base/java.util.TimerThread.mainLoop(Unknown Source)
> COMPANY-zookeeper | 	at java.base/java.util.TimerThread.run(Unknown Source)
> COMPANY-zookeeper | 2021-03-09 08:00:21,325 [myid:1] - ERROR [ContainerManagerTask:ContainerManager$1@102] - Error checking containers
> COMPANY-zookeeper | java.lang.NullPointerException
> COMPANY-zookeeper | 	at org.apache.zookeeper.server.ContainerManager.getCandidates(ContainerManager.java:161)
> COMPANY-zookeeper | 	at org.apache.zookeeper.server.ContainerManager.checkContainers(ContainerManager.java:128)
> COMPANY-zookeeper | 	at org.apache.zookeeper.server.ContainerManager$1.run(ContainerManager.java:96)
> COMPANY-zookeeper | 	at java.base/java.util.TimerThread.mainLoop(Unknown Source)
> COMPANY-zookeeper | 	at java.base/java.util.TimerThread.run(Unknown Source)
> COMPANY-zookeeper | 2021-03-09 08:01:21,322 [myid:1] - ERROR [ContainerManagerTask:ContainerManager$1@102] - Error checking containers
> ...
> {noformat}
>  
>  



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