Github user adityakishore commented on a diff in the pull request: https://github.com/apache/drill/pull/443#discussion_r65254026 --- Diff: contrib/storage-hbase/src/main/java/org/apache/drill/exec/store/hbase/HBaseStoragePlugin.java --- @@ -21,34 +21,36 @@ import java.util.Set; import org.apache.calcite.schema.SchemaPlus; - import org.apache.drill.common.JSONOptions; import org.apache.drill.exec.ops.OptimizerRulesContext; import org.apache.drill.exec.server.DrillbitContext; import org.apache.drill.exec.store.AbstractStoragePlugin; import org.apache.drill.exec.store.SchemaConfig; import org.apache.drill.exec.store.StoragePluginOptimizerRule; +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.hbase.client.Connection; import com.fasterxml.jackson.core.type.TypeReference; import com.fasterxml.jackson.databind.ObjectMapper; import com.google.common.collect.ImmutableSet; public class HBaseStoragePlugin extends AbstractStoragePlugin { - static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(HBaseStoragePlugin.class); + private static final HBaseConnectionManager hbaseConnectionManager = HBaseConnectionManager.INSTANCE; --- End diff -- The HBaseConnectionManager is static, and is essentially a connection pool which maintains one HBase connection per storage plugin instance as you recommend.
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