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From "Shaofeng SHI (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (KYLIN-3782) ZookeeperDistributedLock can't acquir lock on windows because wrong Path
Date Mon, 25 Feb 2019 14:52:00 GMT

     [ https://issues.apache.org/jira/browse/KYLIN-3782?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Shaofeng SHI resolved KYLIN-3782.
---------------------------------
    Resolution: Fixed

> ZookeeperDistributedLock can't acquir lock on windows because wrong Path
> ------------------------------------------------------------------------
>
>                 Key: KYLIN-3782
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3782
>             Project: Kylin
>          Issue Type: Bug
>          Components: Storage - HBase
>    Affects Versions: v2.6.0
>            Reporter: hailin.huang
>            Assignee: hailin.huang
>            Priority: Major
>             Fix For: v2.6.1
>
>
> In my windows env, when I run kylin, Kylin service can't start. In class ZookeeperDistributedLock,
I found  kylin use File(path).getCanonicalPath() to norm windows path, however this will get
a path like ' C:\kylin\kylin_metadata1\job_engine\global_job_engine_lock', for zookeeper,Path
must start with / character.
> {color:red}return new File(path).toURI().getPath(){color}  might be better!!!
> Below is stackTrace:
> Caused by: java.lang.IllegalStateException: Error while 832820@UC-20180829ZLJB trying
to lock C:\kylin\kylin_metadata1\job_engine\global_job_engine_lock
> 	at org.apache.kylin.storage.hbase.util.ZookeeperDistributedLock.lock(ZookeeperDistributedLock.java:153)
> 	at org.apache.kylin.storage.hbase.util.ZookeeperDistributedLock.lock(ZookeeperDistributedLock.java:170)
> 	at org.apache.kylin.storage.hbase.util.ZookeeperDistributedLock.lockJobEngine(ZookeeperDistributedLock.java:318)
> 	at org.apache.kylin.storage.hbase.util.ZookeeperJobLock.lockJobEngine(ZookeeperJobLock.java:81)
> 	at org.apache.kylin.job.impl.threadpool.DefaultScheduler.init(DefaultScheduler.java:152)
> 	at org.apache.kylin.rest.service.JobService.afterPropertiesSet(JobService.java:126)
> 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687)
> 	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624)
> 	... 60 more
> caused by: java.lang.IllegalArgumentException: Path must start with / character
> 	at org.apache.curator.utils.PathUtils.validatePath(PathUtils.java:54)
> 	at org.apache.curator.utils.PathUtils.validatePath(PathUtils.java:37)
> 	at org.apache.curator.utils.ZKPaths.fixForNamespace(ZKPaths.java:63)
> 	at org.apache.curator.framework.imps.NamespaceImpl.fixForNamespace(NamespaceImpl.java:82)
> 	at org.apache.curator.framework.imps.CuratorFrameworkImpl.fixForNamespace(CuratorFrameworkImpl.java:579)
> 	at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:434)
> 	at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:44)
> 	at org.apache.kylin.storage.hbase.util.ZookeeperDistributedLock.lock(ZookeeperDistributedLock.java:149)



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