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HBASE-6018 hbck fails with a RejectedExecutionException when >50 regions present 

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1339876 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jonathan Hsieh 2012-05-17 21:53:12 +00:00
parent 3949d1edb1
commit f460eaadb8
2 changed files with 24 additions and 3 deletions
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6
src/main/java/org/apache/hadoop/hbase/util/HBaseFsck.java
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@ -33,7 +33,7 @@ import java.util.SortedSet;
import java.util.TreeMap;
import java.util.TreeSet;
import java.util.concurrent.ConcurrentSkipListMap;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
@ -222,9 +222,9 @@ public class HBaseFsck {
this.conf = conf;
int numThreads = conf.getInt("hbasefsck.numthreads", MAX_NUM_THREADS);
executor = new ThreadPoolExecutor(1, numThreads,
executor = new ThreadPoolExecutor(numThreads, numThreads,
THREADS_KEEP_ALIVE_SECONDS, TimeUnit.SECONDS,
new SynchronousQueue<Runnable>());
new LinkedBlockingQueue<Runnable>());
executor.allowCoreThreadTimeOut(true);
}

21
src/test/java/org/apache/hadoop/hbase/util/TestHBaseFsck.java
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@ -360,6 +360,27 @@ public class TestHBaseFsck {
}
}
/**
* Test thread pooling in the case where there are more regions than threads
*/
@Test
public void testHbckThreadpooling() throws Exception {
String table = "tableDupeStartKey";
try {
// Create table with 4 regions
setupTable(table);
// limit number of threads to 1.
Configuration newconf = new Configuration(conf);
newconf.setInt("hbasefsck.numthreads", 1);
assertNoErrors(doFsck(newconf, false));
// We should pass without triggering a RejectedExecutionException
} finally {
deleteTable(table);
}
}
/**
* This create and fixes a bad table with regions that have a duplicate
* start key