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https://issues.apache.org/jira/browse/DRILL-3171?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15007691#comment-15007691
]
ASF GitHub Bot commented on DRILL-3171:
---------------------------------------
Github user sudheeshkatkam commented on a diff in the pull request:
https://github.com/apache/drill/pull/260#discussion_r45006882
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/store/sys/zk/ZkAbstractStore.java
---
@@ -23,30 +23,35 @@
import java.util.Iterator;
import java.util.List;
import java.util.Map.Entry;
+import java.util.concurrent.TimeUnit;
import org.apache.curator.framework.CuratorFramework;
+import org.apache.curator.framework.api.ACLBackgroundPathAndBytesable;
import org.apache.curator.framework.recipes.cache.ChildData;
import org.apache.curator.framework.recipes.cache.PathChildrenCache;
import
org.apache.curator.framework.recipes.cache.PathChildrenCache.StartMode;
-import org.apache.drill.exec.rpc.data.DataTunnel;
+import org.apache.curator.framework.recipes.locks.InterProcessLock;
import org.apache.drill.exec.store.sys.PStoreConfig;
import org.apache.zookeeper.CreateMode;
import com.google.common.base.Preconditions;
import com.google.common.collect.Lists;
+import org.apache.zookeeper.KeeperException;
/**
* This is the abstract class that is shared by ZkPStore (Persistent
store) and ZkEStore (Ephemeral Store)
* @param <V>
*/
public abstract class ZkAbstractStore<V> implements AutoCloseable {
- static final org.slf4j.Logger logger =
org.slf4j.LoggerFactory.getLogger(ZkAbstractStore.class);
+ private static final org.slf4j.Logger logger =
org.slf4j.LoggerFactory.getLogger(ZkAbstractStore.class);
- protected CuratorFramework framework;
- protected PStoreConfig<V> config;
+ protected static final long LOCK_TIMEOUT_MILLIS = 3000;
--- End diff --
unused.
> Storage Plugins : Two processes tried to update the storage plugin at the
> same time
> -----------------------------------------------------------------------------------
>
> Key: DRILL-3171
> URL: https://issues.apache.org/jira/browse/DRILL-3171
> Project: Apache Drill
> Issue Type: Bug
> Components: Storage - Information Schema
> Affects Versions: 1.0.0
> Reporter: Rahul Challapalli
> Assignee: Deneche A. Hakim
> Labels: test
> Fix For: Future
>
>
> Commit Id# : bd8ac4fca03ad5043bca27fbc7e0dec5a35ac474
> We have seen this issue happen with the below steps
> 1. Clear out the zookeeper
> 2. Update the storage plugin using the rest API on one of the node
> 3. Submit 10 queries concurrently
> With randomized foreman node selection, the node executing the query might
> not have the updated storage plugins info. This could be causing the issue.
> - Rahul
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