/** * Print the assignment plan to the system output stream * * @param plan */ public static void printAssignmentPlan(FavoredNodesPlan plan) { if (plan == null) return; LOG.info("========== Start to print the assignment plan ================"); // sort the map based on region info Map<HRegionInfo, List<ServerName>> assignmentMap = new TreeMap<HRegionInfo, List<ServerName>>(plan.getAssignmentMap()); for (Map.Entry<HRegionInfo, List<ServerName>> entry : assignmentMap.entrySet()) { String serverList = FavoredNodeAssignmentHelper.getFavoredNodesAsString(entry.getValue()); String regionName = entry.getKey().getRegionNameAsString(); LOG.info("Region: " + regionName); LOG.info("Its favored nodes: " + serverList); } LOG.info("========== Finish to print the assignment plan ================"); }