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19 package org.apache.hadoop.hbase.tool;
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21 import org.apache.commons.logging.Log;
22 import org.apache.commons.logging.LogFactory;
23 import org.apache.hadoop.hbase.HConstants;
24 import org.apache.hadoop.hbase.client.Mutation;
25 import org.apache.hadoop.hbase.coprocessor.BaseRegionObserver;
26 import org.apache.hadoop.hbase.coprocessor.ObserverContext;
27 import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment;
28 import org.apache.hadoop.hbase.regionserver.MiniBatchOperationInProgress;
29 import org.apache.hadoop.hbase.regionserver.OperationStatus;
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31 import java.io.IOException;
32 import java.util.concurrent.atomic.AtomicLong;
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56 public class WriteSinkCoprocessor extends BaseRegionObserver {
57 private static final Log LOG = LogFactory.getLog(WriteSinkCoprocessor.class);
58 private final AtomicLong ops = new AtomicLong();
59 private String regionName;
60
61 @Override
62 public void preOpen(ObserverContext<RegionCoprocessorEnvironment> e) throws IOException {
63 regionName = e.getEnvironment().getRegion().getRegionInfo().getRegionNameAsString();
64 }
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66
67 @Override
68 public void preBatchMutate(final ObserverContext<RegionCoprocessorEnvironment> c,
69 final MiniBatchOperationInProgress<Mutation> miniBatchOp)
70 throws IOException {
71 if (ops.incrementAndGet() % 20000 == 0) {
72 LOG.info("Wrote " + ops.get() + " times in region " + regionName);
73 }
74
75 for (int i = 0; i < miniBatchOp.size(); i++) {
76 miniBatchOp.setOperationStatus(i,
77 new OperationStatus(HConstants.OperationStatusCode.SUCCESS));
78 }
79 c.bypass();
80 }
81 }