Github user poornachandra commented on a diff in the pull request:
https://github.com/apache/incubator-tephra/pull/31#discussion_r99750227
--- Diff:
tephra-hbase-compat-1.1-base/src/main/java/org/apache/tephra/hbase/txprune/InvalidListPruningDebug.java
---
@@ -0,0 +1,191 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package org.apache.tephra.hbase.txprune;
+
+import com.google.common.collect.MinMaxPriorityQueue;
+import com.google.gson.Gson;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hbase.TableName;
+import org.apache.hadoop.hbase.client.Connection;
+import org.apache.hadoop.hbase.client.ConnectionFactory;
+import org.apache.hadoop.hbase.client.Table;
+import org.apache.hadoop.hbase.util.Bytes;
+import org.apache.tephra.TxConstants;
+import org.apache.tephra.txprune.RegionPruneInfo;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.Comparator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Queue;
+import javax.annotation.Nullable;
+
+/**
+ * Invalid List Pruning Debug Tool.
+ */
+public class InvalidListPruningDebug {
+ private static final Logger LOG =
LoggerFactory.getLogger(InvalidListPruningDebug.class);
+ private static final Gson GSON = new Gson();
+ private DataJanitorState dataJanitorState;
+
+ /**
+ * Initialize the Invalid List Debug Tool.
+ * @param conf {@link Configuration}
+ * @throws IOException
+ */
+ public void initialize(final Configuration conf) throws IOException {
+ LOG.info("InvalidListPruningDebugMain : initialize method called");
--- End diff --
This can be changed to debug log
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