zhaogang created CURATOR-165:
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Summary: LeaderLatch.checkLeadership(LeaderLatch.java:478) will
throw a exception, then no leader will be elected.
Key: CURATOR-165
URL: https://issues.apache.org/jira/browse/CURATOR-165
Project: Apache Curator
Issue Type: Bug
Components: Recipes
Affects Versions: 2.5.0
Reporter: zhaogang
Priority: Critical
We use curator for leader election within our 2 clients, sometimes none of the
2 clients was a leader.
We checked the log and found this caused by a exception which was being throwed
in method LeaderLatch.checkLeadership(), after throwing this exception the
curator won't do the leader election. Here is error log:
ERROR org.apache.curator.framework.imps.CuratorFrameworkImpl - Background
exception was not retry-able or retry gave up
INFO | jvm 1 | 2014/11/12 00:36:52 | java.lang.IllegalArgumentException:
Path must start with / character
INFO | jvm 1 | 2014/11/12 00:36:52 | at
org.apache.curator.utils.PathUtils.validatePath(PathUtils.java:53)
INFO | jvm 1 | 2014/11/12 00:36:52 | at
org.apache.curator.utils.ZKPaths.getNodeFromPath(ZKPaths.java:56)
INFO | jvm 1 | 2014/11/12 00:36:52 | at
org.apache.curator.framework.recipes.leader.LeaderLatch.checkLeadership(LeaderLatch.java:478)
INFO | jvm 1 | 2014/11/12 00:36:52 | at
org.apache.curator.framework.recipes.leader.LeaderLatch.access$500(LeaderLatch.java:60)
INFO | jvm 1 | 2014/11/12 00:36:52 | at
org.apache.curator.framework.recipes.leader.LeaderLatch$6.processResult(LeaderLatch.java:536)
INFO | jvm 1 | 2014/11/12 00:36:52 | at
org.apache.curator.framework.imps.CuratorFrameworkImpl.sendToBackgroundCallback(CuratorFrameworkImpl.java:730)
INFO | jvm 1 | 2014/11/12 00:36:52 | at
org.apache.curator.framework.imps.CuratorFrameworkImpl.processBackgroundOperation(CuratorFrameworkImpl.java:516)
INFO | jvm 1 | 2014/11/12 00:36:52 | at
org.apache.curator.framework.imps.GetChildrenBuilderImpl$2.processResult(GetChildrenBuilderImpl.java:166)
INFO | jvm 1 | 2014/11/12 00:36:52 | at
org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:590)
INFO | jvm 1 | 2014/11/12 00:36:52 | at
org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)
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