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HBASE-8935 IntegrationTestBigLinkedList fails under load on 0.94 due to some scan issues - add logging 

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1503524 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
sershe 2013-07-15 23:53:03 +00:00
parent 8eb2f3709a
commit a96d77ffd5
3 changed files with 12 additions and 1 deletions
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10
hbase-it/src/test/java/org/apache/hadoop/hbase/test/IntegrationTestBigLinkedList.java
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@ -51,9 +51,11 @@ import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.client.ScannerCallable;
import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
import org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil;
import org.apache.hadoop.hbase.mapreduce.TableMapper;
import org.apache.hadoop.hbase.mapreduce.TableRecordReaderImpl;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.io.BytesWritable;
import org.apache.hadoop.io.NullWritable;
@ -624,6 +626,8 @@ public class IntegrationTestBigLinkedList extends Configured implements Tool {
job.setNumReduceTasks(numReducers);
job.setJarByClass(getClass());
setJobScannerConf(job);
Scan scan = new Scan();
scan.addColumn(FAMILY_NAME, COLUMN_PREV);
scan.setCaching(10000);
@ -1065,4 +1069,10 @@ public class IntegrationTestBigLinkedList extends Configured implements Tool {
job.getConfiguration().setInt(GENERATOR_WRAP_KEY, wrapMuplitplier.intValue());
}
}
private static void setJobScannerConf(Job job) {
// Make sure scanners log something useful to make debugging possible.
job.getConfiguration().setBoolean(ScannerCallable.LOG_SCANNER_ACTIVITY, true);
job.getConfiguration().setInt(TableRecordReaderImpl.LOG_PER_ROW_COUNT, 100000);
}
}

2
hbase-server/src/main/java/org/apache/hadoop/hbase/mapreduce/TableRecordReaderImpl.java
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@ -52,7 +52,7 @@ public class TableRecordReaderImpl {
public static final String LOG_PER_ROW_COUNT
= "hbase.mapreduce.log.scanner.rowcount";
static final Log LOG = LogFactory.getLog(TableRecordReader.class);
static final Log LOG = LogFactory.getLog(TableRecordReaderImpl.class);
// HBASE_COUNTER_GROUP_NAME is the name of mapreduce counter group for HBase
private static final String HBASE_COUNTER_GROUP_NAME =

1
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java
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@ -3016,6 +3016,7 @@ public class HRegionServer implements ClientProtos.ClientService.BlockingInterfa
if (request.hasScannerId()) {
rsh = scanners.get(scannerName);
if (rsh == null) {
LOG.info("Client tried to access missing scanner " + scannerName);
throw new UnknownScannerException(
"Name: " + scannerName + ", already closed?");
}