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From ble...@apache.org
Subject [5/8] cassandra git commit: Merge branch cassandra-2.1 into cassandra-2.2
Date Fri, 28 Aug 2015 14:16:16 GMT
http://git-wip-us.apache.org/repos/asf/cassandra/blob/5fb4e58b/src/java/org/apache/cassandra/tools/NodeTool.java
----------------------------------------------------------------------
diff --cc src/java/org/apache/cassandra/tools/NodeTool.java
index 10c0915,8e88f45..3cb51e2
--- a/src/java/org/apache/cassandra/tools/NodeTool.java
+++ b/src/java/org/apache/cassandra/tools/NodeTool.java
@@@ -336,26 -381,2319 +336,26 @@@ public class NodeToo
          }
      }
  
-     public static Map<String, SetHostStat> getOwnershipByDc(NodeProbe probe, boolean resolveIp,
-                                                              Map<String, String> tokenToEndpoint,
-                                                              Map<InetAddress, Float> ownerships)
 -    @Command(name = "info", description = "Print node information (uptime, load, ...)")
 -    public static class Info extends NodeToolCmd
 -    {
 -        @Option(name = {"-T", "--tokens"}, description = "Display all tokens")
 -        private boolean tokens = false;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            boolean gossipInitialized = probe.isInitialized();
 -
 -            System.out.printf("%-23s: %s%n", "ID", probe.getLocalHostId());
 -            System.out.printf("%-23s: %s%n", "Gossip active", gossipInitialized);
 -            System.out.printf("%-23s: %s%n", "Thrift active", probe.isThriftServerRunning());
 -            System.out.printf("%-23s: %s%n", "Native Transport active", probe.isNativeTransportRunning());
 -            System.out.printf("%-23s: %s%n", "Load", probe.getLoadString());
 -            if (gossipInitialized)
 -                System.out.printf("%-23s: %s%n", "Generation No", probe.getCurrentGenerationNumber());
 -            else
 -                System.out.printf("%-23s: %s%n", "Generation No", 0);
 -
 -            // Uptime
 -            long secondsUp = probe.getUptime() / 1000;
 -            System.out.printf("%-23s: %d%n", "Uptime (seconds)", secondsUp);
 -
 -            // Memory usage
 -            MemoryUsage heapUsage = probe.getHeapMemoryUsage();
 -            double memUsed = (double) heapUsage.getUsed() / (1024 * 1024);
 -            double memMax = (double) heapUsage.getMax() / (1024 * 1024);
 -            System.out.printf("%-23s: %.2f / %.2f%n", "Heap Memory (MB)", memUsed, memMax);
 -            try
 -            {
 -                System.out.printf("%-23s: %.2f%n", "Off Heap Memory (MB)", getOffHeapMemoryUsed(probe));
 -            }
 -            catch (RuntimeException e)
 -            {
 -                // offheap-metrics introduced in 2.1.3 - older versions do not have the appropriate mbeans
 -                if (!(e.getCause() instanceof InstanceNotFoundException))
 -                    throw e;
 -            }
 -
 -            // Data Center/Rack
 -            System.out.printf("%-23s: %s%n", "Data Center", probe.getDataCenter());
 -            System.out.printf("%-23s: %s%n", "Rack", probe.getRack());
 -
 -            // Exceptions
 -            System.out.printf("%-23s: %s%n", "Exceptions", probe.getStorageMetric("Exceptions"));
 -
 -            CacheServiceMBean cacheService = probe.getCacheServiceMBean();
 -
 -            // Key Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
 -            System.out.printf("%-23s: entries %d, size %s, capacity %s, %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
 -                    "Key Cache",
 -                    probe.getCacheMetric("KeyCache", "Entries"),
 -                    FileUtils.stringifyFileSize((long) probe.getCacheMetric("KeyCache", "Size")),
 -                    FileUtils.stringifyFileSize((long) probe.getCacheMetric("KeyCache", "Capacity")),
 -                    probe.getCacheMetric("KeyCache", "Hits"),
 -                    probe.getCacheMetric("KeyCache", "Requests"),
 -                    probe.getCacheMetric("KeyCache", "HitRate"),
 -                    cacheService.getKeyCacheSavePeriodInSeconds());
 -
 -            // Row Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
 -            System.out.printf("%-23s: entries %d, size %s, capacity %s, %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
 -                    "Row Cache",
 -                    probe.getCacheMetric("RowCache", "Entries"),
 -                    FileUtils.stringifyFileSize((long) probe.getCacheMetric("RowCache", "Size")),
 -                    FileUtils.stringifyFileSize((long) probe.getCacheMetric("RowCache", "Capacity")),
 -                    probe.getCacheMetric("RowCache", "Hits"),
 -                    probe.getCacheMetric("RowCache", "Requests"),
 -                    probe.getCacheMetric("RowCache", "HitRate"),
 -                    cacheService.getRowCacheSavePeriodInSeconds());
 -
 -            // Counter Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
 -            System.out.printf("%-23s: entries %d, size %s, capacity %s, %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
 -                    "Counter Cache",
 -                    probe.getCacheMetric("CounterCache", "Entries"),
 -                    FileUtils.stringifyFileSize((long) probe.getCacheMetric("CounterCache", "Size")),
 -                    FileUtils.stringifyFileSize((long) probe.getCacheMetric("CounterCache", "Capacity")),
 -                    probe.getCacheMetric("CounterCache", "Hits"),
 -                    probe.getCacheMetric("CounterCache", "Requests"),
 -                    probe.getCacheMetric("CounterCache", "HitRate"),
 -                    cacheService.getCounterCacheSavePeriodInSeconds());
 -
 -            // check if node is already joined, before getting tokens, since it throws exception if not.
 -            if (probe.isJoined())
 -            {
 -                // Tokens
 -                List<String> tokens = probe.getTokens();
 -                if (tokens.size() == 1 || this.tokens)
 -                    for (String token : tokens)
 -                        System.out.printf("%-23s: %s%n", "Token", token);
 -                else
 -                    System.out.printf("%-23s: (invoke with -T/--tokens to see all %d tokens)%n", "Token",
 -                                      tokens.size());
 -            }
 -            else
 -            {
 -                System.out.printf("%-23s: (node is not joined to the cluster)%n", "Token");
 -            }
 -        }
 -
 -        /**
 -         * Returns the total off heap memory used in MB.
 -         * @return the total off heap memory used in MB.
 -         */
 -        private static double getOffHeapMemoryUsed(NodeProbe probe)
 -        {
 -            long offHeapMemUsedInBytes = 0;
 -            // get a list of column family stores
 -            Iterator<Map.Entry<String, ColumnFamilyStoreMBean>> cfamilies = probe.getColumnFamilyStoreMBeanProxies();
 -
 -            while (cfamilies.hasNext())
 -            {
 -                Entry<String, ColumnFamilyStoreMBean> entry = cfamilies.next();
 -                String keyspaceName = entry.getKey();
 -                String cfName = entry.getValue().getColumnFamilyName();
 -
 -                offHeapMemUsedInBytes += (Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "MemtableOffHeapSize");
 -                offHeapMemUsedInBytes += (Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "BloomFilterOffHeapMemoryUsed");
 -                offHeapMemUsedInBytes += (Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "IndexSummaryOffHeapMemoryUsed");
 -                offHeapMemUsedInBytes += (Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "CompressionMetadataOffHeapMemoryUsed");
 -            }
 -
 -            return offHeapMemUsedInBytes / (1024d * 1024);
 -        }
 -    }
 -
 -    @Command(name = "ring", description = "Print information about the token ring")
 -    public static class Ring extends NodeToolCmd
 -    {
 -        @Arguments(description = "Specify a keyspace for accurate ownership information (topology awareness)")
 -        private String keyspace = null;
 -
 -        @Option(title = "resolve_ip", name = {"-r", "--resolve-ip"}, description = "Show node domain names instead of IPs")
 -        private boolean resolveIp = false;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            Map<String, String> tokensToEndpoints = probe.getTokenToEndpointMap();
 -            LinkedHashMultimap<String, String> endpointsToTokens = LinkedHashMultimap.create();
 -            boolean haveVnodes = false;
 -            for (Map.Entry<String, String> entry : tokensToEndpoints.entrySet())
 -            {
 -                haveVnodes |= endpointsToTokens.containsKey(entry.getValue());
 -                endpointsToTokens.put(entry.getValue(), entry.getKey());
 -            }
 -
 -            int maxAddressLength = Collections.max(endpointsToTokens.keys(), new Comparator<String>()
 -            {
 -                @Override
 -                public int compare(String first, String second)
 -                {
 -                    return ((Integer) first.length()).compareTo(second.length());
 -                }
 -            }).length();
 -
 -            String formatPlaceholder = "%%-%ds  %%-12s%%-7s%%-8s%%-16s%%-20s%%-44s%%n";
 -            String format = format(formatPlaceholder, maxAddressLength);
 -
 -            StringBuffer errors = new StringBuffer();
 -            boolean showEffectiveOwnership = true;
 -            // Calculate per-token ownership of the ring
 -            Map<InetAddress, Float> ownerships;
 -            try
 -            {
 -                ownerships = probe.effectiveOwnership(keyspace);
 -            } 
 -            catch (IllegalStateException ex)
 -            {
 -                ownerships = probe.getOwnership();
 -                errors.append("Note: " + ex.getMessage() + "%n");
 -                showEffectiveOwnership = false;
 -            } 
 -            catch (IllegalArgumentException ex)
 -            {
 -                System.out.printf("%nError: " + ex.getMessage() + "%n");
 -                return;
 -            }
 -
 -            
 -            System.out.println();
 -            for (Entry<String, SetHostStat> entry : getOwnershipByDc(probe, resolveIp, tokensToEndpoints, ownerships).entrySet())
 -                printDc(probe, format, entry.getKey(), endpointsToTokens, entry.getValue(),showEffectiveOwnership);
 -
 -            if (haveVnodes)
 -            {
 -                System.out.println("  Warning: \"nodetool ring\" is used to output all the tokens of a node.");
 -                System.out.println("  To view status related info of a node use \"nodetool status\" instead.\n");
 -            }
 -
 -            System.out.printf("%n  " + errors.toString());
 -        }
 -
 -        private void printDc(NodeProbe probe, String format,
 -                             String dc,
 -                             LinkedHashMultimap<String, String> endpointsToTokens,
 -                             SetHostStat hoststats,boolean showEffectiveOwnership)
 -        {
 -            Collection<String> liveNodes = probe.getLiveNodes();
 -            Collection<String> deadNodes = probe.getUnreachableNodes();
 -            Collection<String> joiningNodes = probe.getJoiningNodes();
 -            Collection<String> leavingNodes = probe.getLeavingNodes();
 -            Collection<String> movingNodes = probe.getMovingNodes();
 -            Map<String, String> loadMap = probe.getLoadMap();
 -
 -            System.out.println("Datacenter: " + dc);
 -            System.out.println("==========");
 -
 -            // get the total amount of replicas for this dc and the last token in this dc's ring
 -            List<String> tokens = new ArrayList<>();
 -            String lastToken = "";
 -
 -            for (HostStat stat : hoststats)
 -            {
 -                tokens.addAll(endpointsToTokens.get(stat.endpoint.getHostAddress()));
 -                lastToken = tokens.get(tokens.size() - 1);
 -            }
 -
 -            System.out.printf(format, "Address", "Rack", "Status", "State", "Load", "Owns", "Token");
 -
 -            if (hoststats.size() > 1)
 -                System.out.printf(format, "", "", "", "", "", "", lastToken);
 -            else
 -                System.out.println();
 -
 -            for (HostStat stat : hoststats)
 -            {
 -                String endpoint = stat.endpoint.getHostAddress();
 -                String rack;
 -                try
 -                {
 -                    rack = probe.getEndpointSnitchInfoProxy().getRack(endpoint);
 -                }
 -                catch (UnknownHostException e)
 -                {
 -                    rack = "Unknown";
 -                }
 -
 -                String status = liveNodes.contains(endpoint)
 -                        ? "Up"
 -                        : deadNodes.contains(endpoint)
 -                                ? "Down"
 -                                : "?";
 -
 -                String state = "Normal";
 -
 -                if (joiningNodes.contains(endpoint))
 -                    state = "Joining";
 -                else if (leavingNodes.contains(endpoint))
 -                    state = "Leaving";
 -                else if (movingNodes.contains(endpoint))
 -                    state = "Moving";
 -
 -                String load = loadMap.containsKey(endpoint)
 -                        ? loadMap.get(endpoint)
 -                        : "?";
 -                String owns = stat.owns != null && showEffectiveOwnership? new DecimalFormat("##0.00%").format(stat.owns) : "?";
 -                System.out.printf(format, stat.ipOrDns(), rack, status, state, load, owns, stat.token);
 -            }
 -            System.out.println();
 -        }
 -    }
 -
 -    @Command(name = "netstats", description = "Print network information on provided host (connecting node by default)")
 -    public static class NetStats extends NodeToolCmd
 -    {
 -        @Option(title = "human_readable",
 -                name = {"-H", "--human-readable"},
 -                description = "Display bytes in human readable form, i.e. KB, MB, GB, TB")
 -        private boolean humanReadable = false;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            System.out.printf("Mode: %s%n", probe.getOperationMode());
 -            Set<StreamState> statuses = probe.getStreamStatus();
 -            if (statuses.isEmpty())
 -                System.out.println("Not sending any streams.");
 -            for (StreamState status : statuses)
 -            {
 -                System.out.printf("%s %s%n", status.description, status.planId.toString());
 -                for (SessionInfo info : status.sessions)
 -                {
 -                    System.out.printf("    %s", info.peer.toString());
 -                    // print private IP when it is used
 -                    if (!info.peer.equals(info.connecting))
 -                    {
 -                        System.out.printf(" (using %s)", info.connecting.toString());
 -                    }
 -                    System.out.printf("%n");
 -                    if (!info.receivingSummaries.isEmpty())
 -                    {
 -                        if (humanReadable)
 -                            System.out.printf("        Receiving %d files, %s total. Already received %d files, %s total%n", info.getTotalFilesToReceive(), FileUtils.stringifyFileSize(info.getTotalSizeToReceive()), info.getTotalFilesReceived(), FileUtils.stringifyFileSize(info.getTotalSizeReceived()));
 -                        else
 -                            System.out.printf("        Receiving %d files, %d bytes total. Already received %d files, %d bytes total%n", info.getTotalFilesToReceive(), info.getTotalSizeToReceive(), info.getTotalFilesReceived(), info.getTotalSizeReceived());
 -                        for (ProgressInfo progress : info.getReceivingFiles())
 -                        {
 -                            System.out.printf("            %s%n", progress.toString());
 -                        }
 -                    }
 -                    if (!info.sendingSummaries.isEmpty())
 -                    {
 -                        if (humanReadable)
 -                            System.out.printf("        Sending %d files, %s total. Already sent %d files, %s total%n", info.getTotalFilesToSend(), FileUtils.stringifyFileSize(info.getTotalSizeToSend()), info.getTotalFilesSent(), FileUtils.stringifyFileSize(info.getTotalSizeSent()));
 -                        else
 -                            System.out.printf("        Sending %d files, %d bytes total. Already sent %d files, %d bytes total%n", info.getTotalFilesToSend(), info.getTotalSizeToSend(), info.getTotalFilesSent(), info.getTotalSizeSent());
 -                        for (ProgressInfo progress : info.getSendingFiles())
 -                        {
 -                            System.out.printf("            %s%n", progress.toString());
 -                        }
 -                    }
 -                }
 -            }
 -
 -            if (!probe.isStarting())
 -            {
 -                System.out.printf("Read Repair Statistics:%nAttempted: %d%nMismatch (Blocking): %d%nMismatch (Background): %d%n", probe.getReadRepairAttempted(), probe.getReadRepairRepairedBlocking(), probe.getReadRepairRepairedBackground());
 -
 -                MessagingServiceMBean ms = probe.msProxy;
 -                System.out.printf("%-25s", "Pool Name");
 -                System.out.printf("%10s", "Active");
 -                System.out.printf("%10s", "Pending");
 -                System.out.printf("%15s%n", "Completed");
 -
 -                int pending;
 -                long completed;
 -
 -                pending = 0;
 -                for (int n : ms.getCommandPendingTasks().values())
 -                    pending += n;
 -                completed = 0;
 -                for (long n : ms.getCommandCompletedTasks().values())
 -                    completed += n;
 -                System.out.printf("%-25s%10s%10s%15s%n", "Commands", "n/a", pending, completed);
 -
 -                pending = 0;
 -                for (int n : ms.getResponsePendingTasks().values())
 -                    pending += n;
 -                completed = 0;
 -                for (long n : ms.getResponseCompletedTasks().values())
 -                    completed += n;
 -                System.out.printf("%-25s%10s%10s%15s%n", "Responses", "n/a", pending, completed);
 -            }
 -        }
 -    }
 -
 -    @Command(name = "cfstats", description = "Print statistics on column families")
 -    public static class CfStats extends NodeToolCmd
++    public static SortedMap<String, SetHostStat> getOwnershipByDc(NodeProbe probe, boolean resolveIp,
++                                                                  Map<String, String> tokenToEndpoint,
++                                                                  Map<InetAddress, Float> ownerships)
      {
-         Map<String, SetHostStat> ownershipByDc = Maps.newLinkedHashMap();
 -        @Arguments(usage = "[<keyspace.cfname>...]", description = "List of column families (or keyspace) names")
 -        private List<String> cfnames = new ArrayList<>();
 -
 -        @Option(name = "-i", description = "Ignore the list of column families and display the remaining cfs")
 -        private boolean ignore = false;
 -
 -        @Option(title = "human_readable",
 -                name = {"-H", "--human-readable"},
 -                description = "Display bytes in human readable form, i.e. KB, MB, GB, TB")
 -        private boolean humanReadable = false;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            OptionFilter filter = new OptionFilter(ignore, cfnames);
 -            Map<String, List<ColumnFamilyStoreMBean>> cfstoreMap = new HashMap<>();
 -
 -            // get a list of column family stores
 -            Iterator<Map.Entry<String, ColumnFamilyStoreMBean>> cfamilies = probe.getColumnFamilyStoreMBeanProxies();
 -
 -            while (cfamilies.hasNext())
 -            {
 -                Map.Entry<String, ColumnFamilyStoreMBean> entry = cfamilies.next();
 -                String keyspaceName = entry.getKey();
 -                ColumnFamilyStoreMBean cfsProxy = entry.getValue();
 -
 -                if (!cfstoreMap.containsKey(keyspaceName) && filter.isColumnFamilyIncluded(entry.getKey(), cfsProxy.getColumnFamilyName()))
 -                {
 -                    List<ColumnFamilyStoreMBean> columnFamilies = new ArrayList<>();
 -                    columnFamilies.add(cfsProxy);
 -                    cfstoreMap.put(keyspaceName, columnFamilies);
 -                } else if (filter.isColumnFamilyIncluded(entry.getKey(), cfsProxy.getColumnFamilyName()))
 -                {
 -                    cfstoreMap.get(keyspaceName).add(cfsProxy);
 -                }
 -            }
 -
 -            // make sure all specified kss and cfs exist
 -            filter.verifyKeyspaces(probe.getKeyspaces());
 -            filter.verifyColumnFamilies();
 -
 -            // print out the table statistics
 -            for (Map.Entry<String, List<ColumnFamilyStoreMBean>> entry : cfstoreMap.entrySet())
 -            {
 -                String keyspaceName = entry.getKey();
 -                List<ColumnFamilyStoreMBean> columnFamilies = entry.getValue();
 -                long keyspaceReadCount = 0;
 -                long keyspaceWriteCount = 0;
 -                int keyspacePendingFlushes = 0;
 -                double keyspaceTotalReadTime = 0.0f;
 -                double keyspaceTotalWriteTime = 0.0f;
 -
 -                System.out.println("Keyspace: " + keyspaceName);
 -                for (ColumnFamilyStoreMBean cfstore : columnFamilies)
 -                {
 -                    String cfName = cfstore.getColumnFamilyName();
 -                    long writeCount = ((JmxReporter.TimerMBean) probe.getColumnFamilyMetric(keyspaceName, cfName, "WriteLatency")).getCount();
 -                    long readCount = ((JmxReporter.TimerMBean) probe.getColumnFamilyMetric(keyspaceName, cfName, "ReadLatency")).getCount();
 -
 -                    if (readCount > 0)
 -                    {
 -                        keyspaceReadCount += readCount;
 -                        keyspaceTotalReadTime += (long) probe.getColumnFamilyMetric(keyspaceName, cfName, "ReadTotalLatency");
 -                    }
 -                    if (writeCount > 0)
 -                    {
 -                        keyspaceWriteCount += writeCount;
 -                        keyspaceTotalWriteTime += (long) probe.getColumnFamilyMetric(keyspaceName, cfName, "WriteTotalLatency");
 -                    }
 -                    keyspacePendingFlushes += (long) probe.getColumnFamilyMetric(keyspaceName, cfName, "PendingFlushes");
 -                }
 -
 -                double keyspaceReadLatency = keyspaceReadCount > 0
 -                                             ? keyspaceTotalReadTime / keyspaceReadCount / 1000
 -                                             : Double.NaN;
 -                double keyspaceWriteLatency = keyspaceWriteCount > 0
 -                                              ? keyspaceTotalWriteTime / keyspaceWriteCount / 1000
 -                                              : Double.NaN;
 -
 -                System.out.println("\tRead Count: " + keyspaceReadCount);
 -                System.out.println("\tRead Latency: " + String.format("%s", keyspaceReadLatency) + " ms.");
 -                System.out.println("\tWrite Count: " + keyspaceWriteCount);
 -                System.out.println("\tWrite Latency: " + String.format("%s", keyspaceWriteLatency) + " ms.");
 -                System.out.println("\tPending Flushes: " + keyspacePendingFlushes);
 -
 -                // print out column family statistics for this keyspace
 -                for (ColumnFamilyStoreMBean cfstore : columnFamilies)
 -                {
 -                    String cfName = cfstore.getColumnFamilyName();
 -                    if (cfName.contains("."))
 -                        System.out.println("\t\tTable (index): " + cfName);
 -                    else
 -                        System.out.println("\t\tTable: " + cfName);
 -
 -                    System.out.println("\t\tSSTable count: " + probe.getColumnFamilyMetric(keyspaceName, cfName, "LiveSSTableCount"));
 -
 -                    int[] leveledSStables = cfstore.getSSTableCountPerLevel();
 -                    if (leveledSStables != null)
 -                    {
 -                        System.out.print("\t\tSSTables in each level: [");
 -                        for (int level = 0; level < leveledSStables.length; level++)
 -                        {
 -                            int count = leveledSStables[level];
 -                            System.out.print(count);
 -                            long maxCount = 4L; // for L0
 -                            if (level > 0)
 -                                maxCount = (long) Math.pow(10, level);
 -                            //  show max threshold for level when exceeded
 -                            if (count > maxCount)
 -                                System.out.print("/" + maxCount);
 -
 -                            if (level < leveledSStables.length - 1)
 -                                System.out.print(", ");
 -                            else
 -                                System.out.println("]");
 -                        }
 -                    }
 -
 -                    Long memtableOffHeapSize = null;
 -                    Long bloomFilterOffHeapSize = null;
 -                    Long indexSummaryOffHeapSize = null;
 -                    Long compressionMetadataOffHeapSize = null;
 -
 -                    Long offHeapSize = null;
 -
 -                    try
 -                    {
 -                        memtableOffHeapSize = (Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "MemtableOffHeapSize");
 -                        bloomFilterOffHeapSize = (Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "BloomFilterOffHeapMemoryUsed");
 -                        indexSummaryOffHeapSize = (Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "IndexSummaryOffHeapMemoryUsed");
 -                        compressionMetadataOffHeapSize = (Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "CompressionMetadataOffHeapMemoryUsed");
 -
 -                        offHeapSize = memtableOffHeapSize + bloomFilterOffHeapSize + indexSummaryOffHeapSize + compressionMetadataOffHeapSize;
 -                    }
 -                    catch (RuntimeException e)
 -                    {
 -                        // offheap-metrics introduced in 2.1.3 - older versions do not have the appropriate mbeans
 -                        if (!(e.getCause() instanceof InstanceNotFoundException))
 -                            throw e;
 -                    }
 -
 -                    System.out.println("\t\tSpace used (live): " + format((Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "LiveDiskSpaceUsed"), humanReadable));
 -                    System.out.println("\t\tSpace used (total): " + format((Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "TotalDiskSpaceUsed"), humanReadable));
 -                    System.out.println("\t\tSpace used by snapshots (total): " + format((Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "SnapshotsSize"), humanReadable));
 -                    if (offHeapSize != null)
 -                        System.out.println("\t\tOff heap memory used (total): " + format(offHeapSize, humanReadable));
 -                    System.out.println("\t\tSSTable Compression Ratio: " + probe.getColumnFamilyMetric(keyspaceName, cfName, "CompressionRatio"));
 -                    System.out.println("\t\tNumber of keys (estimate): " + probe.getColumnFamilyMetric(keyspaceName, cfName, "EstimatedRowCount"));
 -                    System.out.println("\t\tMemtable cell count: " + probe.getColumnFamilyMetric(keyspaceName, cfName, "MemtableColumnsCount"));
 -                    System.out.println("\t\tMemtable data size: " + format((Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "MemtableLiveDataSize"), humanReadable));
 -                    if (memtableOffHeapSize != null)
 -                        System.out.println("\t\tMemtable off heap memory used: " + format(memtableOffHeapSize, humanReadable));
 -                    System.out.println("\t\tMemtable switch count: " + probe.getColumnFamilyMetric(keyspaceName, cfName, "MemtableSwitchCount"));
 -                    System.out.println("\t\tLocal read count: " + ((JmxReporter.TimerMBean) probe.getColumnFamilyMetric(keyspaceName, cfName, "ReadLatency")).getCount());
 -                    double localReadLatency = ((JmxReporter.TimerMBean) probe.getColumnFamilyMetric(keyspaceName, cfName, "ReadLatency")).getMean() / 1000;
 -                    double localRLatency = localReadLatency > 0 ? localReadLatency : Double.NaN;
 -                    System.out.printf("\t\tLocal read latency: %01.3f ms%n", localRLatency);
 -                    System.out.println("\t\tLocal write count: " + ((JmxReporter.TimerMBean) probe.getColumnFamilyMetric(keyspaceName, cfName, "WriteLatency")).getCount());
 -                    double localWriteLatency = ((JmxReporter.TimerMBean) probe.getColumnFamilyMetric(keyspaceName, cfName, "WriteLatency")).getMean() / 1000;
 -                    double localWLatency = localWriteLatency > 0 ? localWriteLatency : Double.NaN;
 -                    System.out.printf("\t\tLocal write latency: %01.3f ms%n", localWLatency);
 -                    System.out.println("\t\tPending flushes: " + probe.getColumnFamilyMetric(keyspaceName, cfName, "PendingFlushes"));
 -                    System.out.println("\t\tBloom filter false positives: " + probe.getColumnFamilyMetric(keyspaceName, cfName, "BloomFilterFalsePositives"));
 -                    System.out.printf("\t\tBloom filter false ratio: %s%n", String.format("%01.5f", probe.getColumnFamilyMetric(keyspaceName, cfName, "RecentBloomFilterFalseRatio")));
 -                    System.out.println("\t\tBloom filter space used: " + format((Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "BloomFilterDiskSpaceUsed"), humanReadable));
 -                    if (bloomFilterOffHeapSize != null)
 -                        System.out.println("\t\tBloom filter off heap memory used: " + format(bloomFilterOffHeapSize, humanReadable));
 -                    if (indexSummaryOffHeapSize != null)
 -                        System.out.println("\t\tIndex summary off heap memory used: " + format(indexSummaryOffHeapSize, humanReadable));
 -                    if (compressionMetadataOffHeapSize != null)
 -                        System.out.println("\t\tCompression metadata off heap memory used: " + format(compressionMetadataOffHeapSize, humanReadable));
 -
 -                    System.out.println("\t\tCompacted partition minimum bytes: " + format((Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "MinRowSize"), humanReadable));
 -                    System.out.println("\t\tCompacted partition maximum bytes: " + format((Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "MaxRowSize"), humanReadable));
 -                    System.out.println("\t\tCompacted partition mean bytes: " + format((Long) probe.getColumnFamilyMetric(keyspaceName, cfName, "MeanRowSize"), humanReadable));
 -                    JmxReporter.HistogramMBean histogram = (JmxReporter.HistogramMBean) probe.getColumnFamilyMetric(keyspaceName, cfName, "LiveScannedHistogram");
 -                    System.out.println("\t\tAverage live cells per slice (last five minutes): " + histogram.getMean());
 -                    System.out.println("\t\tMaximum live cells per slice (last five minutes): " + histogram.getMax());
 -                    histogram = (JmxReporter.HistogramMBean) probe.getColumnFamilyMetric(keyspaceName, cfName, "TombstoneScannedHistogram");
 -                    System.out.println("\t\tAverage tombstones per slice (last five minutes): " + histogram.getMean());
 -                    System.out.println("\t\tMaximum tombstones per slice (last five minutes): " + histogram.getMax());
 -
 -                    System.out.println("");
 -                }
 -                System.out.println("----------------");
 -            }
 -        }
 -
 -        private String format(long bytes, boolean humanReadable) {
 -            return humanReadable ? FileUtils.stringifyFileSize(bytes) : Long.toString(bytes);
 -        }
 -
 -        /**
 -         * Used for filtering keyspaces and columnfamilies to be displayed using the cfstats command.
 -         */
 -        private static class OptionFilter
++        SortedMap<String, SetHostStat> ownershipByDc = Maps.newTreeMap();
 +        EndpointSnitchInfoMBean epSnitchInfo = probe.getEndpointSnitchInfoProxy();
 +        try
          {
 -            private Map<String, List<String>> filter = new HashMap<>();
 -            private Map<String, List<String>> verifier = new HashMap<>();
 -            private List<String> filterList = new ArrayList<>();
 -            private boolean ignoreMode;
 -
 -            public OptionFilter(boolean ignoreMode, List<String> filterList)
 -            {
 -                this.filterList.addAll(filterList);
 -                this.ignoreMode = ignoreMode;
 -
 -                for (String s : filterList)
 -                {
 -                    String[] keyValues = s.split("\\.", 2);
 -
 -                    // build the map that stores the ks' and cfs to use
 -                    if (!filter.containsKey(keyValues[0]))
 -                    {
 -                        filter.put(keyValues[0], new ArrayList<String>());
 -                        verifier.put(keyValues[0], new ArrayList<String>());
 -
 -                        if (keyValues.length == 2)
 -                        {
 -                            filter.get(keyValues[0]).add(keyValues[1]);
 -                            verifier.get(keyValues[0]).add(keyValues[1]);
 -                        }
 -                    } else
 -                    {
 -                        if (keyValues.length == 2)
 -                        {
 -                            filter.get(keyValues[0]).add(keyValues[1]);
 -                            verifier.get(keyValues[0]).add(keyValues[1]);
 -                        }
 -                    }
 -                }
 -            }
 -
 -            public boolean isColumnFamilyIncluded(String keyspace, String columnFamily)
 -            {
 -                // supplying empty params list is treated as wanting to display all kss & cfs
 -                if (filterList.isEmpty())
 -                    return !ignoreMode;
 -
 -                List<String> cfs = filter.get(keyspace);
 -
 -                // no such keyspace is in the map
 -                if (cfs == null)
 -                    return ignoreMode;
 -                    // only a keyspace with no cfs was supplied
 -                    // so ignore or include (based on the flag) every column family in specified keyspace
 -                else if (cfs.size() == 0)
 -                    return !ignoreMode;
 -
 -                // keyspace exists, and it contains specific cfs
 -                verifier.get(keyspace).remove(columnFamily);
 -                return ignoreMode ^ cfs.contains(columnFamily);
 -            }
 -
 -            public void verifyKeyspaces(List<String> keyspaces)
 -            {
 -                for (String ks : verifier.keySet())
 -                    if (!keyspaces.contains(ks))
 -                        throw new IllegalArgumentException("Unknown keyspace: " + ks);
 -            }
 -
 -            public void verifyColumnFamilies()
 +            for (Entry<String, String> tokenAndEndPoint : tokenToEndpoint.entrySet())
              {
 -                for (String ks : filter.keySet())
 -                    if (verifier.get(ks).size() > 0)
 -                        throw new IllegalArgumentException("Unknown column families: " + verifier.get(ks).toString() + " in keyspace: " + ks);
 +                String dc = epSnitchInfo.getDatacenter(tokenAndEndPoint.getValue());
 +                if (!ownershipByDc.containsKey(dc))
 +                    ownershipByDc.put(dc, new SetHostStat(resolveIp));
 +                ownershipByDc.get(dc).add(tokenAndEndPoint.getKey(), tokenAndEndPoint.getValue(), ownerships);
              }
          }
 -    }
 -
 -    @Command(name = "toppartitions", description = "Sample and print the most active partitions for a given column family")
 -    public static class TopPartitions extends NodeToolCmd
 -    {
 -        @Arguments(usage = "<keyspace> <cfname> <duration>", description = "The keyspace, column family name, and duration in milliseconds")
 -        private List<String> args = new ArrayList<>();
 -        @Option(name = "-s", description = "Capacity of stream summary, closer to the actual cardinality of partitions will yield more accurate results (Default: 256)")
 -        private int size = 256;
 -        @Option(name = "-k", description = "Number of the top partitions to list (Default: 10)")
 -        private int topCount = 10;
 -        @Option(name = "-a", description = "Comma separated list of samplers to use (Default: all)")
 -        private String samplers = join(Sampler.values(), ',');
 -        @Override
 -        public void execute(NodeProbe probe)
 +        catch (UnknownHostException e)
          {
 -            checkArgument(args.size() == 3, "toppartitions requires keyspace, column family name, and duration");
 -            checkArgument(topCount < size, "TopK count (-k) option must be smaller then the summary capacity (-s)");
 -            String keyspace = args.get(0);
 -            String cfname = args.get(1);
 -            Integer duration = Integer.parseInt(args.get(2));
 -            // generate the list of samplers
 -            List<Sampler> targets = Lists.newArrayList();
 -            for (String s : samplers.split(","))
 -            {
 -                try
 -                {
 -                    targets.add(Sampler.valueOf(s.toUpperCase()));
 -                } catch (Exception e)
 -                {
 -                    throw new IllegalArgumentException(s + " is not a valid sampler, choose one of: " + join(Sampler.values(), ", "));
 -                }
 -            }
 -
 -            Map<Sampler, CompositeData> results;
 -            try
 -            {
 -                results = probe.getPartitionSample(keyspace, cfname, size, duration, topCount, targets);
 -            } catch (OpenDataException e)
 -            {
 -                throw new RuntimeException(e);
 -            }
 -            boolean first = true;
 -            for(Entry<Sampler, CompositeData> result : results.entrySet())
 -            {
 -                CompositeData sampling = result.getValue();
 -                // weird casting for http://bugs.sun.com/view_bug.do?bug_id=6548436
 -                List<CompositeData> topk = (List<CompositeData>) (Object) Lists.newArrayList(((TabularDataSupport) sampling.get("partitions")).values());
 -                Collections.sort(topk, new Ordering<CompositeData>()
 -                {
 -                    public int compare(CompositeData left, CompositeData right)
 -                    {
 -                        return Long.compare((long) right.get("count"), (long) left.get("count"));
 -                    }
 -                });
 -                if(!first)
 -                    System.out.println();
 -                System.out.println(result.getKey().toString()+ " Sampler:");
 -                System.out.printf("  Cardinality: ~%d (%d capacity)%n", (long) sampling.get("cardinality"), size);
 -                System.out.printf("  Top %d partitions:%n", topCount);
 -                if (topk.size() == 0)
 -                {
 -                    System.out.println("\tNothing recorded during sampling period...");
 -                } else
 -                {
 -                    int offset = 0;
 -                    for (CompositeData entry : topk)
 -                        offset = Math.max(offset, entry.get("string").toString().length());
 -                    System.out.printf("\t%-" + offset + "s%10s%10s%n", "Partition", "Count", "+/-");
 -                    for (CompositeData entry : topk)
 -                        System.out.printf("\t%-" + offset + "s%10d%10d%n", entry.get("string").toString(), entry.get("count"), entry.get("error"));
 -                }
 -                first = false;
 -            }
 +            throw new RuntimeException(e);
          }
 +        return ownershipByDc;
      }
 -
 -    @Command(name = "cfhistograms", description = "Print statistic histograms for a given column family")
 -    public static class CfHistograms extends NodeToolCmd
 -    {
 -        @Arguments(usage = "<keyspace> <cfname>", description = "The keyspace and column family name")
 -        private List<String> args = new ArrayList<>();
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            checkArgument(args.size() == 2, "cfhistograms requires ks and cf args");
 -
 -            String keyspace = args.get(0);
 -            String cfname = args.get(1);
 -
 -            ColumnFamilyStoreMBean store = probe.getCfsProxy(keyspace, cfname);
 -
 -            long[] estimatedRowSizeHistogram = store.getEstimatedRowSizeHistogram();
 -            long[] estimatedColumnCountHistogram = store.getEstimatedColumnCountHistogram();
 -
 -            if (ArrayUtils.isEmpty(estimatedRowSizeHistogram) || ArrayUtils.isEmpty(estimatedColumnCountHistogram))
 -            {
 -                System.err.println("No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles");
 -            }
 -
 -            // calculate percentile of row size and column count
 -            String[] percentiles = new String[]{"50%", "75%", "95%", "98%", "99%", "Min", "Max"};
 -            double[] readLatency = probe.metricPercentilesAsArray(store.getRecentReadLatencyHistogramMicros());
 -            double[] writeLatency = probe.metricPercentilesAsArray(store.getRecentWriteLatencyHistogramMicros());
 -            double[] estimatedRowSizePercentiles = probe.metricPercentilesAsArray(estimatedRowSizeHistogram);
 -            double[] estimatedColumnCountPercentiles = probe.metricPercentilesAsArray(estimatedColumnCountHistogram);
 -            double[] sstablesPerRead = probe.metricPercentilesAsArray(store.getRecentSSTablesPerReadHistogram());
 -
 -            System.out.println(format("%s/%s histograms", keyspace, cfname));
 -            System.out.println(format("%-10s%10s%18s%18s%18s%18s",
 -                    "Percentile", "SSTables", "Write Latency", "Read Latency", "Partition Size", "Cell Count"));
 -            System.out.println(format("%-10s%10s%18s%18s%18s%18s",
 -                    "", "", "(micros)", "(micros)", "(bytes)", ""));
 -
 -            for (int i = 0; i < percentiles.length; i++)
 -            {
 -                System.out.println(format("%-10s%10.2f%18.2f%18.2f%18.0f%18.0f",
 -                        percentiles[i],
 -                        sstablesPerRead[i],
 -                        writeLatency[i],
 -                        readLatency[i],
 -                        estimatedRowSizePercentiles[i],
 -                        estimatedColumnCountPercentiles[i]));
 -            }
 -            System.out.println();
 -        }
 -    }
 -
 -    @Command(name = "cleanup", description = "Triggers the immediate cleanup of keys no longer belonging to a node. By default, clean all keyspaces")
 -    public static class Cleanup extends NodeToolCmd
 -    {
 -        @Arguments(usage = "[<keyspace> <cfnames>...]", description = "The keyspace followed by one or many column families")
 -        private List<String> args = new ArrayList<>();
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            List<String> keyspaces = parseOptionalKeyspace(args, probe);
 -            String[] cfnames = parseOptionalColumnFamilies(args);
 -
 -            for (String keyspace : keyspaces)
 -            {
 -                if (Keyspace.SYSTEM_KS.equals(keyspace))
 -                    continue;
 -
 -                try
 -                {
 -                    probe.forceKeyspaceCleanup(System.out, keyspace, cfnames);
 -                } catch (Exception e)
 -                {
 -                    throw new RuntimeException("Error occurred during cleanup", e);
 -                }
 -            }
 -        }
 -    }
 -
 -    @Command(name = "clearsnapshot", description = "Remove the snapshot with the given name from the given keyspaces. If no snapshotName is specified we will remove all snapshots")
 -    public static class ClearSnapshot extends NodeToolCmd
 -    {
 -        @Arguments(usage = "[<keyspaces>...] ", description = "Remove snapshots from the given keyspaces")
 -        private List<String> keyspaces = new ArrayList<>();
 -
 -        @Option(title = "snapshot_name", name = "-t", description = "Remove the snapshot with a given name")
 -        private String snapshotName = EMPTY;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            StringBuilder sb = new StringBuilder();
 -
 -            sb.append("Requested clearing snapshot(s) for ");
 -
 -            if (keyspaces.isEmpty())
 -                sb.append("[all keyspaces]");
 -            else
 -                sb.append("[").append(join(keyspaces, ", ")).append("]");
 -
 -            if (!snapshotName.isEmpty())
 -                sb.append(" with snapshot name [").append(snapshotName).append("]");
 -
 -            System.out.println(sb.toString());
 -
 -            try
 -            {
 -                probe.clearSnapshot(snapshotName, toArray(keyspaces, String.class));
 -            } catch (IOException e)
 -            {
 -                throw new RuntimeException("Error during clearing snapshots", e);
 -            }
 -        }
 -    }
 -
 -    @Command(name = "compact", description = "Force a (major) compaction on one or more column families")
 -    public static class Compact extends NodeToolCmd
 -    {
 -        @Arguments(usage = "[<keyspace> <cfnames>...]", description = "The keyspace followed by one or many column families")
 -        private List<String> args = new ArrayList<>();
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            List<String> keyspaces = parseOptionalKeyspace(args, probe);
 -            String[] cfnames = parseOptionalColumnFamilies(args);
 -
 -            for (String keyspace : keyspaces)
 -            {
 -                try
 -                {
 -                    probe.forceKeyspaceCompaction(keyspace, cfnames);
 -                } catch (Exception e)
 -                {
 -                    throw new RuntimeException("Error occurred during compaction", e);
 -                }
 -            }
 -        }
 -    }
 -
 -    @Command(name = "flush", description = "Flush one or more column families")
 -    public static class Flush extends NodeToolCmd
 -    {
 -        @Arguments(usage = "[<keyspace> <cfnames>...]", description = "The keyspace followed by one or many column families")
 -        private List<String> args = new ArrayList<>();
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            List<String> keyspaces = parseOptionalKeyspace(args, probe);
 -            String[] cfnames = parseOptionalColumnFamilies(args);
 -
 -            for (String keyspace : keyspaces)
 -            {
 -                try
 -                {
 -                    probe.forceKeyspaceFlush(keyspace, cfnames);
 -                } catch (Exception e)
 -                {
 -                    throw new RuntimeException("Error occurred during flushing", e);
 -                }
 -            }
 -        }
 -    }
 -
 -    @Command(name = "scrub", description = "Scrub (rebuild sstables for) one or more column families")
 -    public static class Scrub extends NodeToolCmd
 -    {
 -        @Arguments(usage = "[<keyspace> <cfnames>...]", description = "The keyspace followed by one or many column families")
 -        private List<String> args = new ArrayList<>();
 -
 -        @Option(title = "disable_snapshot",
 -                name = {"-ns", "--no-snapshot"},
 -                description = "Scrubbed CFs will be snapshotted first, if disableSnapshot is false. (default false)")
 -        private boolean disableSnapshot = false;
 -
 -        @Option(title = "skip_corrupted",
 -                name = {"-s", "--skip-corrupted"},
 -                description = "Skip corrupted partitions even when scrubbing counter tables. (default false)")
 -        private boolean skipCorrupted = false;
 -
 -        @Option(title = "no_validate",
 -                name = {"-n", "--no-validate"},
 -                description = "Do not validate columns using column validator")
 -        private boolean noValidation = false;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            List<String> keyspaces = parseOptionalKeyspace(args, probe);
 -            String[] cfnames = parseOptionalColumnFamilies(args);
 -
 -            for (String keyspace : keyspaces)
 -            {
 -                try
 -                {
 -                    probe.scrub(System.out, disableSnapshot, skipCorrupted, !noValidation, keyspace, cfnames);
 -                } catch (Exception e)
 -                {
 -                    throw new RuntimeException("Error occurred during flushing", e);
 -                }
 -            }
 -        }
 -    }
 -
 -    @Command(name = "disableautocompaction", description = "Disable autocompaction for the given keyspace and column family")
 -    public static class DisableAutoCompaction extends NodeToolCmd
 -    {
 -        @Arguments(usage = "[<keyspace> <cfnames>...]", description = "The keyspace followed by one or many column families")
 -        private List<String> args = new ArrayList<>();
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            List<String> keyspaces = parseOptionalKeyspace(args, probe);
 -            String[] cfnames = parseOptionalColumnFamilies(args);
 -
 -            for (String keyspace : keyspaces)
 -            {
 -                try
 -                {
 -                    probe.disableAutoCompaction(keyspace, cfnames);
 -                } catch (IOException e)
 -                {
 -                    throw new RuntimeException("Error occurred during disabling auto-compaction", e);
 -                }
 -            }
 -        }
 -    }
 -
 -    @Command(name = "enableautocompaction", description = "Enable autocompaction for the given keyspace and column family")
 -    public static class EnableAutoCompaction extends NodeToolCmd
 -    {
 -        @Arguments(usage = "[<keyspace> <cfnames>...]", description = "The keyspace followed by one or many column families")
 -        private List<String> args = new ArrayList<>();
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            List<String> keyspaces = parseOptionalKeyspace(args, probe);
 -            String[] cfnames = parseOptionalColumnFamilies(args);
 -
 -            for (String keyspace : keyspaces)
 -            {
 -                try
 -                {
 -                    probe.enableAutoCompaction(keyspace, cfnames);
 -                } catch (IOException e)
 -                {
 -                    throw new RuntimeException("Error occurred during enabling auto-compaction", e);
 -                }
 -            }
 -        }
 -    }
 -
 -    @Command(name = "upgradesstables", description = "Rewrite sstables (for the requested column families) that are not on the current version (thus upgrading them to said current version)")
 -    public static class UpgradeSSTable extends NodeToolCmd
 -    {
 -        @Arguments(usage = "[<keyspace> <cfnames>...]", description = "The keyspace followed by one or many column families")
 -        private List<String> args = new ArrayList<>();
 -
 -        @Option(title = "include_all", name = {"-a", "--include-all-sstables"}, description = "Use -a to include all sstables, even those already on the current version")
 -        private boolean includeAll = false;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            List<String> keyspaces = parseOptionalKeyspace(args, probe);
 -            String[] cfnames = parseOptionalColumnFamilies(args);
 -
 -            for (String keyspace : keyspaces)
 -            {
 -                try
 -                {
 -                    probe.upgradeSSTables(System.out, keyspace, !includeAll, cfnames);
 -                } catch (Exception e)
 -                {
 -                    throw new RuntimeException("Error occurred during enabling auto-compaction", e);
 -                }
 -            }
 -        }
 -    }
 -
 -    @Command(name = "compactionstats", description = "Print statistics on compactions")
 -    public static class CompactionStats extends NodeToolCmd
 -    {
 -        @Option(title = "human_readable",
 -                name = {"-H", "--human-readable"},
 -                description = "Display bytes in human readable form, i.e. KB, MB, GB, TB")
 -        private boolean humanReadable = false;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            int compactionThroughput = probe.getCompactionThroughput();
 -            CompactionManagerMBean cm = probe.getCompactionManagerProxy();
 -            System.out.println("pending tasks: " + probe.getCompactionMetric("PendingTasks"));
 -            long remainingBytes = 0;
 -            List<Map<String, String>> compactions = cm.getCompactions();
 -            if (!compactions.isEmpty())
 -            {
 -                List<String[]> lines = new ArrayList<>();
 -                int[] columnSizes = new int[] { 0, 0, 0, 0, 0, 0, 0 };
 -
 -                addLine(lines, columnSizes, "compaction type", "keyspace", "table", "completed", "total", "unit", "progress");
 -                for (Map<String, String> c : compactions)
 -                {
 -                    long total = Long.parseLong(c.get("total"));
 -                    long completed = Long.parseLong(c.get("completed"));
 -                    String taskType = c.get("taskType");
 -                    String keyspace = c.get("keyspace");
 -                    String columnFamily = c.get("columnfamily");
 -                    String completedStr = humanReadable ? FileUtils.stringifyFileSize(completed) : Long.toString(completed);
 -                    String totalStr = humanReadable ? FileUtils.stringifyFileSize(total) : Long.toString(total);
 -                    String unit = c.get("unit");
 -                    String percentComplete = total == 0 ? "n/a" : new DecimalFormat("0.00").format((double) completed / total * 100) + "%";
 -                    addLine(lines, columnSizes, taskType, keyspace, columnFamily, completedStr, totalStr, unit, percentComplete);
 -                    if (taskType.equals(OperationType.COMPACTION.toString()))
 -                        remainingBytes += total - completed;
 -                }
 -
 -                StringBuilder buffer = new StringBuilder();
 -                for (int columnSize : columnSizes) {
 -                    buffer.append("%");
 -                    buffer.append(columnSize + 3);
 -                    buffer.append("s");
 -                }
 -                buffer.append("%n");
 -                String format = buffer.toString();
 -
 -                for (String[] line : lines)
 -                {
 -                    System.out.printf(format, line[0], line[1], line[2], line[3], line[4], line[5], line[6]);
 -                }
 -
 -                String remainingTime = "n/a";
 -                if (compactionThroughput != 0)
 -                {
 -                    long remainingTimeInSecs = remainingBytes / (1024L * 1024L * compactionThroughput);
 -                    remainingTime = format("%dh%02dm%02ds", remainingTimeInSecs / 3600, (remainingTimeInSecs % 3600) / 60, (remainingTimeInSecs % 60));
 -                }
 -                System.out.printf("%25s%10s%n", "Active compaction remaining time : ", remainingTime);
 -            }
 -        }
 -
 -        private void addLine(List<String[]> lines, int[] columnSizes, String... columns) {
 -            lines.add(columns);
 -            for (int i = 0; i < columns.length; i++) {
 -                columnSizes[i] = Math.max(columnSizes[i], columns[i].length());
 -            }
 -        }
 -    }
 -
 -    @Command(name = "compactionhistory", description = "Print history of compaction")
 -    public static class CompactionHistory extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            System.out.println("Compaction History: ");
 -
 -            TabularData tabularData = probe.getCompactionHistory();
 -            if (tabularData.isEmpty())
 -            {
 -                System.out.printf("There is no compaction history");
 -                return;
 -            }
 -
 -            String format = "%-41s%-19s%-29s%-26s%-15s%-15s%s%n";
 -            List<String> indexNames = tabularData.getTabularType().getIndexNames();
 -            System.out.printf(format, toArray(indexNames, Object.class));
 -
 -            Set<?> values = tabularData.keySet();
 -            for (Object eachValue : values)
 -            {
 -                List<?> value = (List<?>) eachValue;
 -                System.out.printf(format, toArray(value, Object.class));
 -            }
 -        }
 -    }
 -
 -    @Command(name = "decommission", description = "Decommission the *node I am connecting to*")
 -    public static class Decommission extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            try
 -            {
 -                probe.decommission();
 -            } catch (InterruptedException e)
 -            {
 -                throw new RuntimeException("Error decommissioning node", e);
 -            }
 -        }
 -    }
 -
 -    @Command(name = "describecluster", description = "Print the name, snitch, partitioner and schema version of a cluster")
 -    public static class DescribeCluster extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            // display cluster name, snitch and partitioner
 -            System.out.println("Cluster Information:");
 -            System.out.println("\tName: " + probe.getClusterName());
 -            System.out.println("\tSnitch: " + probe.getEndpointSnitchInfoProxy().getSnitchName());
 -            System.out.println("\tPartitioner: " + probe.getPartitioner());
 -
 -            // display schema version for each node
 -            System.out.println("\tSchema versions:");
 -            Map<String, List<String>> schemaVersions = probe.getSpProxy().getSchemaVersions();
 -            for (String version : schemaVersions.keySet())
 -            {
 -                System.out.println(format("\t\t%s: %s%n", version, schemaVersions.get(version)));
 -            }
 -        }
 -    }
 -
 -    @Command(name = "disablebinary", description = "Disable native transport (binary protocol)")
 -    public static class DisableBinary extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            probe.stopNativeTransport();
 -        }
 -    }
 -
 -    @Command(name = "enablebinary", description = "Reenable native transport (binary protocol)")
 -    public static class EnableBinary extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            probe.startNativeTransport();
 -        }
 -    }
 -
 -    @Command(name = "enablegossip", description = "Reenable gossip")
 -    public static class EnableGossip extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            probe.startGossiping();
 -        }
 -    }
 -
 -    @Command(name = "disablegossip", description = "Disable gossip (effectively marking the node down)")
 -    public static class DisableGossip extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            probe.stopGossiping();
 -        }
 -    }
 -
 -    @Command(name = "enablehandoff", description = "Reenable the future hints storing on the current node")
 -    public static class EnableHandoff extends NodeToolCmd
 -    {
 -        @Arguments(usage = "<dc-name>,<dc-name>", description = "Enable hinted handoff only for these DCs")
 -        private List<String> args = new ArrayList<>();
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            checkArgument(args.size() <= 1, "enablehandoff does not accept two args");
 -            if(args.size() == 1)
 -                probe.enableHintedHandoff(args.get(0));
 -            else
 -                probe.enableHintedHandoff();
 -        }
 -    }
 -
 -    @Command(name = "enablethrift", description = "Reenable thrift server")
 -    public static class EnableThrift extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            probe.startThriftServer();
 -        }
 -    }
 -
 -    @Command(name = "getcompactionthreshold", description = "Print min and max compaction thresholds for a given column family")
 -    public static class GetCompactionThreshold extends NodeToolCmd
 -    {
 -        @Arguments(usage = "<keyspace> <cfname>", description = "The keyspace with a column family")
 -        private List<String> args = new ArrayList<>();
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            checkArgument(args.size() == 2, "getcompactionthreshold requires ks and cf args");
 -            String ks = args.get(0);
 -            String cf = args.get(1);
 -
 -            ColumnFamilyStoreMBean cfsProxy = probe.getCfsProxy(ks, cf);
 -            System.out.println("Current compaction thresholds for " + ks + "/" + cf + ": \n" +
 -                    " min = " + cfsProxy.getMinimumCompactionThreshold() + ", " +
 -                    " max = " + cfsProxy.getMaximumCompactionThreshold());
 -        }
 -    }
 -
 -    @Command(name = "getcompactionthroughput", description = "Print the MB/s throughput cap for compaction in the system")
 -    public static class GetCompactionThroughput extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            System.out.println("Current compaction throughput: " + probe.getCompactionThroughput() + " MB/s");
 -        }
 -    }
 -
 -    @Command(name = "getstreamthroughput", description = "Print the Mb/s throughput cap for streaming in the system")
 -    public static class GetStreamThroughput extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            System.out.println("Current stream throughput: " + probe.getStreamThroughput() + " Mb/s");
 -        }
 -    }
 -
 -    @Command(name = "getendpoints", description = "Print the end points that owns the key")
 -    public static class GetEndpoints extends NodeToolCmd
 -    {
 -        @Arguments(usage = "<keyspace> <cfname> <key>", description = "The keyspace, the column family, and the partition key for which we need to find the endpoint")
 -        private List<String> args = new ArrayList<>();
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            checkArgument(args.size() == 3, "getendpoints requires ks, cf and key args");
 -            String ks = args.get(0);
 -            String cf = args.get(1);
 -            String key = args.get(2);
 -
 -            List<InetAddress> endpoints = probe.getEndpoints(ks, cf, key);
 -            for (InetAddress endpoint : endpoints)
 -            {
 -                System.out.println(endpoint.getHostAddress());
 -            }
 -        }
 -    }
 -
 -    @Command(name = "getsstables", description = "Print the sstable filenames that own the key")
 -    public static class GetSSTables extends NodeToolCmd
 -    {
 -        @Arguments(usage = "<keyspace> <cfname> <key>", description = "The keyspace, the column family, and the key")
 -        private List<String> args = new ArrayList<>();
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            checkArgument(args.size() == 3, "getsstables requires ks, cf and key args");
 -            String ks = args.get(0);
 -            String cf = args.get(1);
 -            String key = args.get(2);
 -
 -            List<String> sstables = probe.getSSTables(ks, cf, key);
 -            for (String sstable : sstables)
 -            {
 -                System.out.println(sstable);
 -            }
 -        }
 -    }
 -
 -    @Command(name = "gossipinfo", description = "Shows the gossip information for the cluster")
 -    public static class GossipInfo extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            System.out.println(probe.getGossipInfo());
 -        }
 -    }
 -
 -    @Command(name = "invalidatekeycache", description = "Invalidate the key cache")
 -    public static class InvalidateKeyCache extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            probe.invalidateKeyCache();
 -        }
 -    }
 -
 -    @Command(name = "invalidaterowcache", description = "Invalidate the row cache")
 -    public static class InvalidateRowCache extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            probe.invalidateRowCache();
 -        }
 -    }
 -
 -    @Command(name = "invalidatecountercache", description = "Invalidate the counter cache")
 -    public static class InvalidateCounterCache extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            probe.invalidateCounterCache();
 -        }
 -    }
 -
 -    @Command(name = "join", description = "Join the ring")
 -    public static class Join extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            checkState(!probe.isJoined(), "This node has already joined the ring.");
 -
 -            try
 -            {
 -                probe.joinRing();
 -            } catch (IOException e)
 -            {
 -                throw new RuntimeException("Error during joining the ring", e);
 -            }
 -        }
 -    }
 -
 -    @Command(name = "move", description = "Move node on the token ring to a new token")
 -    public static class Move extends NodeToolCmd
 -    {
 -        @Arguments(usage = "<new token>", description = "The new token.", required = true)
 -        private String newToken = EMPTY;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            try
 -            {
 -                probe.move(newToken);
 -            } catch (IOException e)
 -            {
 -                throw new RuntimeException("Error during moving node", e);
 -            }
 -        }
 -    }
 -
 -
 -
 -    @Command(name = "pausehandoff", description = "Pause hints delivery process")
 -    public static class PauseHandoff extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            probe.pauseHintsDelivery();
 -        }
 -    }
 -
 -    @Command(name = "resumehandoff", description = "Resume hints delivery process")
 -    public static class ResumeHandoff extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            probe.resumeHintsDelivery();
 -        }
 -    }
 -
 -
 -    @Command(name = "proxyhistograms", description = "Print statistic histograms for network operations")
 -    public static class ProxyHistograms extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            StorageProxyMBean sp = probe.getSpProxy();
 -            String[] percentiles = new String[]{"50%", "75%", "95%", "98%", "99%", "Min", "Max"};
 -            double[] readLatency = probe.metricPercentilesAsArray(sp.getRecentReadLatencyHistogramMicros());
 -            double[] writeLatency = probe.metricPercentilesAsArray(sp.getRecentWriteLatencyHistogramMicros());
 -            double[] rangeLatency = probe.metricPercentilesAsArray(sp.getRecentRangeLatencyHistogramMicros());
 -
 -            System.out.println("proxy histograms");
 -            System.out.println(format("%-10s%18s%18s%18s",
 -                    "Percentile", "Read Latency", "Write Latency", "Range Latency"));
 -            System.out.println(format("%-10s%18s%18s%18s",
 -                    "", "(micros)", "(micros)", "(micros)"));
 -            for (int i = 0; i < percentiles.length; i++)
 -            {
 -                System.out.println(format("%-10s%18.2f%18.2f%18.2f",
 -                        percentiles[i],
 -                        readLatency[i],
 -                        writeLatency[i],
 -                        rangeLatency[i]));
 -            }
 -            System.out.println();
 -        }
 -    }
 -
 -    @Command(name = "rebuild", description = "Rebuild data by streaming from other nodes (similarly to bootstrap)")
 -    public static class Rebuild extends NodeToolCmd
 -    {
 -        @Arguments(usage = "<src-dc-name>", description = "Name of DC from which to select sources for streaming. By default, pick any DC")
 -        private String sourceDataCenterName = null;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            probe.rebuild(sourceDataCenterName);
 -        }
 -    }
 -
 -    @Command(name = "refresh", description = "Load newly placed SSTables to the system without restart")
 -    public static class Refresh extends NodeToolCmd
 -    {
 -        @Arguments(usage = "<keyspace> <cfname>", description = "The keyspace and column family name")
 -        private List<String> args = new ArrayList<>();
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            checkArgument(args.size() == 2, "refresh requires ks and cf args");
 -            probe.loadNewSSTables(args.get(0), args.get(1));
 -        }
 -    }
 -
 -    @Deprecated
 -    @Command(name = "removetoken", description = "DEPRECATED (see removenode)", hidden = true)
 -    public static class RemoveToken extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            System.err.println("Warn: removetoken is deprecated, please use removenode instead");
 -        }
 -    }
 -
 -    @Command(name = "removenode", description = "Show status of current node removal, force completion of pending removal or remove provided ID")
 -    public static class RemoveNode extends NodeToolCmd
 -    {
 -        @Arguments(title = "remove_operation", usage = "<status>|<force>|<ID>", description = "Show status of current node removal, force completion of pending removal, or remove provided ID", required = true)
 -        private String removeOperation = EMPTY;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            switch (removeOperation)
 -            {
 -                case "status":
 -                    System.out.println("RemovalStatus: " + probe.getRemovalStatus());
 -                    break;
 -                case "force":
 -                    System.out.println("RemovalStatus: " + probe.getRemovalStatus());
 -                    probe.forceRemoveCompletion();
 -                    break;
 -                default:
 -                    probe.removeNode(removeOperation);
 -                    break;
 -            }
 -        }
 -    }
 -
 -    @Command(name = "repair", description = "Repair one or more column families")
 -    public static class Repair extends NodeToolCmd
 -    {
 -        @Arguments(usage = "[<keyspace> <cfnames>...]", description = "The keyspace followed by one or many column families")
 -        private List<String> args = new ArrayList<>();
 -
 -        @Option(title = "parallel", name = {"-par", "--parallel"}, description = "Use -par to carry out a parallel repair")
 -        private boolean parallel = false;
 -
 -        @Option(title = "dc parallel", name = {"-dcpar", "--dc-parallel"}, description = "Use -dcpar to repair data centers in parallel.")
 -        private boolean dcParallel = false;
 -
 -        @Option(title = "local_dc", name = {"-local", "--in-local-dc"}, description = "Use -local to only repair against nodes in the same datacenter")
 -        private boolean localDC = false;
 -
 -        @Option(title = "specific_dc", name = {"-dc", "--in-dc"}, description = "Use -dc to repair specific datacenters")
 -        private List<String> specificDataCenters = new ArrayList<>();
 -
 -        @Option(title = "specific_host", name = {"-hosts", "--in-hosts"}, description = "Use -hosts to repair specific hosts")
 -        private List<String> specificHosts = new ArrayList<>();
 -
 -        @Option(title = "start_token", name = {"-st", "--start-token"}, description = "Use -st to specify a token at which the repair range starts")
 -        private String startToken = EMPTY;
 -
 -        @Option(title = "end_token", name = {"-et", "--end-token"}, description = "Use -et to specify a token at which repair range ends")
 -        private String endToken = EMPTY;
 -
 -        @Option(title = "primary_range", name = {"-pr", "--partitioner-range"}, description = "Use -pr to repair only the first range returned by the partitioner")
 -        private boolean primaryRange = false;
 -
 -        @Option(title = "incremental_repair", name = {"-inc", "--incremental"}, description = "Use -inc to use the new incremental repair")
 -        private boolean incrementalRepair = false;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            List<String> keyspaces = parseOptionalKeyspace(args, probe);
 -            String[] cfnames = parseOptionalColumnFamilies(args);
 -
 -            if (primaryRange && (!specificDataCenters.isEmpty() || !specificHosts.isEmpty()))
 -                throw new RuntimeException("Primary range repair should be performed on all nodes in the cluster.");
 -
 -            for (String keyspace : keyspaces)
 -            {
 -                try
 -                {
 -                    RepairParallelism parallelismDegree = RepairParallelism.SEQUENTIAL;
 -                    if (parallel)
 -                        parallelismDegree = RepairParallelism.PARALLEL;
 -                    else if (dcParallel)
 -                        parallelismDegree = RepairParallelism.DATACENTER_AWARE;
 -
 -                    Collection<String> dataCenters = null;
 -                    Collection<String> hosts = null;
 -                    if (!specificDataCenters.isEmpty())
 -                        dataCenters = newArrayList(specificDataCenters);
 -                    else if (localDC)
 -                        dataCenters = newArrayList(probe.getDataCenter());
 -                    else if(!specificHosts.isEmpty())
 -                        hosts = newArrayList(specificHosts);
 -                    if (!startToken.isEmpty() || !endToken.isEmpty())
 -                        probe.forceRepairRangeAsync(System.out, keyspace, parallelismDegree, dataCenters,hosts, startToken, endToken, !incrementalRepair);
 -                    else
 -                        probe.forceRepairAsync(System.out, keyspace, parallelismDegree, dataCenters, hosts, primaryRange, !incrementalRepair, cfnames);
 -                } catch (Exception e)
 -                {
 -                    throw new RuntimeException("Error occurred during repair", e);
 -                }
 -            }
 -        }
 -    }
 -
 -    @Command(name = "setcachecapacity", description = "Set global key, row, and counter cache capacities (in MB units)")
 -    public static class SetCacheCapacity extends NodeToolCmd
 -    {
 -        @Arguments(title = "<key-cache-capacity> <row-cache-capacity> <counter-cache-capacity>",
 -                   usage = "<key-cache-capacity> <row-cache-capacity> <counter-cache-capacity>",
 -                   description = "Key cache, row cache, and counter cache (in MB)",
 -                   required = true)
 -        private List<Integer> args = new ArrayList<>();
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            checkArgument(args.size() == 3, "setcachecapacity requires key-cache-capacity, row-cache-capacity, and counter-cache-capacity args.");
 -            probe.setCacheCapacities(args.get(0), args.get(1), args.get(2));
 -        }
 -    }
 -
 -    @Command(name = "setcompactionthreshold", description = "Set min and max compaction thresholds for a given column family")
 -    public static class SetCompactionThreshold extends NodeToolCmd
 -    {
 -        @Arguments(title = "<keyspace> <cfname> <minthreshold> <maxthreshold>", usage = "<keyspace> <cfname> <minthreshold> <maxthreshold>", description = "The keyspace, the column family, min and max threshold", required = true)
 -        private List<String> args = new ArrayList<>();
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            checkArgument(args.size() == 4, "setcompactionthreshold requires ks, cf, min, and max threshold args.");
 -
 -            int minthreshold = parseInt(args.get(2));
 -            int maxthreshold = parseInt(args.get(3));
 -            checkArgument(minthreshold >= 0 && maxthreshold >= 0, "Thresholds must be positive integers");
 -            checkArgument(minthreshold <= maxthreshold, "Min threshold cannot be greater than max.");
 -            checkArgument(minthreshold >= 2 || maxthreshold == 0, "Min threshold must be at least 2");
 -
 -            probe.setCompactionThreshold(args.get(0), args.get(1), minthreshold, maxthreshold);
 -        }
 -    }
 -
 -    @Command(name = "setcompactionthroughput", description = "Set the MB/s throughput cap for compaction in the system, or 0 to disable throttling")
 -    public static class SetCompactionThroughput extends NodeToolCmd
 -    {
 -        @Arguments(title = "compaction_throughput", usage = "<value_in_mb>", description = "Value in MB, 0 to disable throttling", required = true)
 -        private Integer compactionThroughput = null;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            probe.setCompactionThroughput(compactionThroughput);
 -        }
 -    }
 -
 -    @Command(name = "sethintedhandoffthrottlekb", description =  "Set hinted handoff throttle in kb per second, per delivery thread.")
 -    public static class SetHintedHandoffThrottleInKB extends NodeToolCmd
 -    {
 -        @Arguments(title = "throttle_in_kb", usage = "<value_in_kb_per_sec>", description = "Value in KB per second", required = true)
 -        private Integer throttleInKB = null;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            probe.setHintedHandoffThrottleInKB(throttleInKB);
 -        }
 -    }
 -
 -    @Command(name = "setstreamthroughput", description = "Set the Mb/s throughput cap for streaming in the system, or 0 to disable throttling")
 -    public static class SetStreamThroughput extends NodeToolCmd
 -    {
 -        @Arguments(title = "stream_throughput", usage = "<value_in_mb>", description = "Value in Mb, 0 to disable throttling", required = true)
 -        private Integer streamThroughput = null;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            probe.setStreamThroughput(streamThroughput);
 -        }
 -    }
 -
 -    @Command(name = "settraceprobability", description = "Sets the probability for tracing any given request to value. 0 disables, 1 enables for all requests, 0 is the default")
 -    public static class SetTraceProbability extends NodeToolCmd
 -    {
 -        @Arguments(title = "trace_probability", usage = "<value>", description = "Trace probability between 0 and 1 (ex: 0.2)", required = true)
 -        private Double traceProbability = null;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            checkArgument(traceProbability >= 0 && traceProbability <= 1, "Trace probability must be between 0 and 1");
 -            probe.setTraceProbability(traceProbability);
 -        }
 -    }
 -
 -    @Command(name = "snapshot", description = "Take a snapshot of specified keyspaces or a snapshot of the specified column family")
 -    public static class Snapshot extends NodeToolCmd
 -    {
 -        @Arguments(usage = "[<keyspaces...>]", description = "List of keyspaces. By default, all keyspaces")
 -        private List<String> keyspaces = new ArrayList<>();
 -
 -        @Option(title = "cfname", name = {"-cf", "--column-family"}, description = "The column family name (you must specify one and only one keyspace for using this option)")
 -        private String columnFamily = null;
 -
 -        @Option(title = "tag", name = {"-t", "--tag"}, description = "The name of the snapshot")
 -        private String snapshotName = Long.toString(System.currentTimeMillis());
 -
 -        @Option(title = "kclist", name = { "-kc", "--kc-list" }, description = "The list of Keyspace.Column family to take snapshot.(you must not specify only keyspace)")
 -        private String kcList = null;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            try
 -            {
 -                StringBuilder sb = new StringBuilder();
 -
 -                sb.append("Requested creating snapshot(s) for ");
 -
 -                // Create a separate path for kclist to avoid breaking of already existing scripts
 -                if (null != kcList && !kcList.isEmpty())
 -                {
 -                    kcList = kcList.replace(" ", "");
 -                    if (keyspaces.isEmpty() && null == columnFamily)
 -                        sb.append("[").append(kcList).append("]");
 -                    else
 -                    {
 -                        throw new IOException(
 -                                "When specifying the Keyspace columfamily list for a snapshot, you should not specify columnfamily");
 -                    }
 -                    if (!snapshotName.isEmpty())
 -                        sb.append(" with snapshot name [").append(snapshotName).append("]");
 -                    System.out.println(sb.toString());
 -                    probe.takeMultipleColumnFamilySnapshot(snapshotName, kcList.split(","));
 -                    System.out.println("Snapshot directory: " + snapshotName);
 -                }
 -                else
 -                {
 -                    if (keyspaces.isEmpty())
 -                        sb.append("[all keyspaces]");
 -                    else
 -                        sb.append("[").append(join(keyspaces, ", ")).append("]");
 -
 -                    if (!snapshotName.isEmpty())
 -                        sb.append(" with snapshot name [").append(snapshotName).append("]");
 -
 -                    System.out.println(sb.toString());
 -
 -                    probe.takeSnapshot(snapshotName, columnFamily, toArray(keyspaces, String.class));
 -                    System.out.println("Snapshot directory: " + snapshotName);
 -                }
 -            }
 -            catch (IOException e)
 -            {
 -                throw new RuntimeException("Error during taking a snapshot", e);
 -            }
 -        }
 -    }
 -
 -    @Command(name = "listsnapshots", description = "Lists all the snapshots along with the size on disk and true size.")
 -    public static class ListSnapshots extends NodeToolCmd
 -    {
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            try
 -            {
 -                System.out.println("Snapshot Details: ");
 -
 -                final Map<String,TabularData> snapshotDetails = probe.getSnapshotDetails();
 -                if (snapshotDetails.isEmpty())
 -                {
 -                    System.out.printf("There are no snapshots");
 -                    return;
 -                }
 -
 -                final long trueSnapshotsSize = probe.trueSnapshotsSize();
 -                final String format = "%-20s%-29s%-29s%-19s%-19s%n";
 -                // display column names only once
 -                final List<String> indexNames = snapshotDetails.entrySet().iterator().next().getValue().getTabularType().getIndexNames();
 -                System.out.printf(format, (Object[]) indexNames.toArray(new String[indexNames.size()]));
 -
 -                for (final Map.Entry<String, TabularData> snapshotDetail : snapshotDetails.entrySet())
 -                {
 -                    Set<?> values = snapshotDetail.getValue().keySet();
 -                    for (Object eachValue : values)
 -                    {
 -                        final List<?> value = (List<?>) eachValue;
 -                        System.out.printf(format, value.toArray(new Object[value.size()]));
 -                    }
 -                }
 -
 -                System.out.println("\nTotal TrueDiskSpaceUsed: " + FileUtils.stringifyFileSize(trueSnapshotsSize) + "\n");
 -            }
 -            catch (Exception e)
 -            {
 -                throw new RuntimeException("Error during list snapshot", e);
 -            }
 -        }
 -    }
 -
 -    @Command(name = "status", description = "Print cluster information (state, load, IDs, ...)")
 -    public static class Status extends NodeToolCmd
 -    {
 -        @Arguments(usage = "[<keyspace>]", description = "The keyspace name")
 -        private String keyspace = null;
 -
 -        @Option(title = "resolve_ip", name = {"-r", "--resolve-ip"}, description = "Show node domain names instead of IPs")
 -        private boolean resolveIp = false;
 -
 -        private boolean hasEffectiveOwns = false;
 -        private boolean isTokenPerNode = true;
 -        private int maxAddressLength = 0;
 -        private String format = null;
 -        private Collection<String> joiningNodes, leavingNodes, movingNodes, liveNodes, unreachableNodes;
 -        private Map<String, String> loadMap, hostIDMap, tokensToEndpoints;
 -        private EndpointSnitchInfoMBean epSnitchInfo;
 -
 -        @Override
 -        public void execute(NodeProbe probe)
 -        {
 -            joiningNodes = probe.getJoiningNodes();
 -            leavingNodes = probe.getLeavingNodes();
 -            movingNodes = probe.getMovingNodes();
 -            loadMap = probe.getLoadMap();
 -            tokensToEndpoints = probe.getTokenToEndpointMap();
 -            liveNodes = probe.getLiveNodes();
 -            unreachableNodes = probe.getUnreachableNodes();
 -            hostIDMap = probe.getHostIdMap();
 -            epSnitchInfo = probe.getEndpointSnitchInfoProxy();
 -            
 -            StringBuffer errors = new StringBuffer();
 -
 -            Map<InetAddress, Float> ownerships = null;
 -            try
 -            {
 -                ownerships = probe.effectiveOwnership(keyspace);
 -                hasEffectiveOwns = true;
 -            } catch (IllegalStateException e)
 -            {
 -                ownerships = probe.getOwnership();
 -                errors.append("Note: " + e.getMessage() + "%n");
 -            }
 -            catch (IllegalArgumentException ex)
 -            {
 -                System.out.printf("%nError: " + ex.getMessage() + "%n");
 -                System.exit(1);
 -            }
 -
 -            SortedMap<String, SetHostStat> dcs = getOwnershipByDc(probe, resolveIp, tokensToEndpoints, ownerships);
 -
 -            // More tokens than nodes (aka vnodes)?
 -            if (dcs.values().size() < tokensToEndpoints.keySet().size())
 -                isTokenPerNode = false;
 -
 -            findMaxAddressLength(dcs);
 -
 -            // Datacenters
 -            for (Map.Entry<String, SetHostStat> dc : dcs.entrySet())
 -            {
 -                String dcHeader = String.format("Datacenter: %s%n", dc.getKey());
 -                System.out.printf(dcHeader);
 -                for (int i = 0; i < (dcHeader.length() - 1); i++) System.out.print('=');
 -                System.out.println();
 -
 -                // Legend
 -                System.out.println("Status=Up/Down");
 -                System.out.println("|/ State=Normal/Leaving/Joining/Moving");
 -
 -                printNodesHeader(hasEffectiveOwns, isTokenPerNode);
 -
 -                ArrayListMultimap<InetAddress, HostStat> hostToTokens = ArrayListMultimap.

<TRUNCATED>

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