[KYLIN-3734] UT Failed:Invalid path string "/kylin/../examples/test_metadata/job_engine/global_job_engine_lock"

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: v2.6.0
• Component/s: Tools, Build and Test
• Assignee: Chao Long
• Reporter: Chao Long
• Created: 20/Dec/18 12:35
• Updated: 12/Jan/19 06:41
• Resolved: 23/Dec/18 01:56

Description

After merge pr of issue KYLIN-1819, I get a UT error about ZookeeperDistributedLock.

Error message:
Caused by: java.lang.IllegalStateException: Error while [e-mail] trying to lock /kylin/../examples/test_metadata/job_engine/global_job_engine_lock
at org.apache.kylin.storage.hbase.util.ZookeeperDistributedLock.lock(ZookeeperDistributedLock.java:151)
at org.apache.kylin.storage.hbase.util.ZookeeperDistributedLock.lock(ZookeeperDistributedLock.java:168)
at org.apache.kylin.storage.hbase.util.ZookeeperDistributedLock.lockJobEngine(ZookeeperDistributedLock.java:308)
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)
... 70 more
Caused by: java.lang.IllegalArgumentException: Invalid path string "/kylin/../examples/test_metadata/job_engine/global_job_engine_lock" caused by relative paths not allowed @8
at org.apache.curator.utils.PathUtils.validatePath(PathUtils.java:102)
at org.apache.curator.utils.PathUtils.validatePath(PathUtils.java:37)
at org.apache.curator.utils.ZKPaths.fixForNamespace(ZKPaths.java:105)
at org.apache.curator.framework.imps.NamespaceImpl.fixForNamespace(NamespaceImpl.java:104)
at org.apache.curator.framework.imps.CuratorFrameworkImpl.fixForNamespace(CuratorFrameworkImpl.java:599)
at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:465)
at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:44)
at org.apache.kylin.storage.hbase.util.ZookeeperDistributedLock.lock(ZookeeperDistributedLock.java:147)
... 77 more
It throw this exception before, but because the scheduler is running in a new thread, the exception thrown by the thread will be ignored.