HBASE-25717 RegionServer aborted with due to ClassCastException (#3108)
Signed-off-by: stack <stack@apache.org> Signed-off-by: Viraj Jasani <vjasani@apache.org>
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@ -20,10 +20,10 @@
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package org.apache.hadoop.hbase.coprocessor;
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import java.io.IOException;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Optional;
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import java.util.Set;
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import java.util.concurrent.ConcurrentHashMap;
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import org.apache.commons.lang3.StringUtils;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.hbase.Cell;
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@ -58,7 +58,7 @@ public class MetaTableMetrics implements RegionCoprocessor {
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private MetricRegistry registry;
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private LossyCounting<String> clientMetricsLossyCounting, regionMetricsLossyCounting;
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private boolean active = false;
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private Set<String> metrics = new HashSet<>();
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private Set<String> metrics = ConcurrentHashMap.newKeySet();
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enum MetaTableOps {
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GET, PUT, DELETE,
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