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The Apache Cassandra Project develops a highly scalable second-generation distributed database, bringing together Dynamo's fully distributed design and Bigtable's ColumnFamily-based data model.
/*
* 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.cassandra.tools.nodetool;
import io.airlift.airline.Command;
import io.airlift.airline.Option;
import java.io.PrintStream;
import java.util.Set;
import com.google.common.annotations.VisibleForTesting;
import org.apache.cassandra.io.util.FileUtils;
import org.apache.cassandra.net.MessagingServiceMBean;
import org.apache.cassandra.streaming.ProgressInfo;
import org.apache.cassandra.streaming.SessionInfo;
import org.apache.cassandra.streaming.StreamState;
import org.apache.cassandra.tools.NodeProbe;
import org.apache.cassandra.tools.NodeTool.NodeToolCmd;
@Command(name = "netstats", description = "Print network information on provided host (connecting node by default)")
public class NetStats extends NodeToolCmd
{
@Option(title = "human_readable",
name = {"-H", "--human-readable"},
description = "Display bytes in human readable form, i.e. KiB, MiB, GiB, TiB")
private boolean humanReadable = false;
@Override
public void execute(NodeProbe probe)
{
PrintStream out = probe.output().out;
out.printf("Mode: %s%n", probe.getOperationMode());
Set statuses = probe.getStreamStatus();
if (statuses.isEmpty())
out.println("Not sending any streams.");
for (StreamState status : statuses)
{
out.printf("%s %s%n", status.streamOperation.getDescription(), status.planId.toString());
for (SessionInfo info : status.sessions)
{
out.printf(" %s", info.peer.toString(printPort));
// print private IP when it is used
if (!info.peer.equals(info.connecting))
{
out.printf(" (using %s)", info.connecting.toString(printPort));
}
out.printf("%n");
if (!info.receivingSummaries.isEmpty())
{
printReceivingSummaries(out, info, humanReadable);
}
if (!info.sendingSummaries.isEmpty())
{
printSendingSummaries(out, info, humanReadable);
}
}
}
if (!probe.isStarting())
{
out.printf("Read Repair Statistics:%nAttempted: %d%nMismatch (Blocking): %d%nMismatch (Background): %d%n", probe.getReadRepairAttempted(), probe.getReadRepairRepairedBlocking(), probe.getReadRepairRepairedBackground());
MessagingServiceMBean ms = probe.getMessagingServiceProxy();
out.printf("%-25s", "Pool Name");
out.printf("%10s", "Active");
out.printf("%10s", "Pending");
out.printf("%15s", "Completed");
out.printf("%10s%n", "Dropped");
int pending;
long completed;
long dropped;
pending = 0;
for (int n : ms.getLargeMessagePendingTasksWithPort().values())
pending += n;
completed = 0;
for (long n : ms.getLargeMessageCompletedTasksWithPort().values())
completed += n;
dropped = 0;
for (long n : ms.getLargeMessageDroppedTasksWithPort().values())
dropped += n;
out.printf("%-25s%10s%10s%15s%10s%n", "Large messages", "n/a", pending, completed, dropped);
pending = 0;
for (int n : ms.getSmallMessagePendingTasksWithPort().values())
pending += n;
completed = 0;
for (long n : ms.getSmallMessageCompletedTasksWithPort().values())
completed += n;
dropped = 0;
for (long n : ms.getSmallMessageDroppedTasksWithPort().values())
dropped += n;
out.printf("%-25s%10s%10s%15s%10s%n", "Small messages", "n/a", pending, completed, dropped);
pending = 0;
for (int n : ms.getGossipMessagePendingTasksWithPort().values())
pending += n;
completed = 0;
for (long n : ms.getGossipMessageCompletedTasksWithPort().values())
completed += n;
dropped = 0;
for (long n : ms.getGossipMessageDroppedTasksWithPort().values())
dropped += n;
out.printf("%-25s%10s%10s%15s%10s%n", "Gossip messages", "n/a", pending, completed, dropped);
}
}
@VisibleForTesting
public void printReceivingSummaries(PrintStream out, SessionInfo info, boolean printHumanReadable)
{
long totalFilesToReceive = info.getTotalFilesToReceive();
long totalBytesToReceive = info.getTotalSizeToReceive();
long totalFilesReceived = info.getTotalFilesReceived();
long totalSizeReceived = info.getTotalSizeReceived();
double percentageFilesReceived = ((double) totalFilesReceived / totalFilesToReceive) * 100;
double percentageSizesReceived = ((double) totalSizeReceived / totalBytesToReceive) * 100;
out.printf(" Receiving %d files, %s total. Already received %d files (%.2f%%), %s total (%.2f%%)%n",
totalFilesToReceive,
printHumanReadable ? FileUtils.stringifyFileSize(totalBytesToReceive) : Long.toString(totalBytesToReceive) + " bytes",
totalFilesReceived,
percentageFilesReceived,
printHumanReadable ? FileUtils.stringifyFileSize(totalSizeReceived) : Long.toString(totalSizeReceived) + " bytes",
percentageSizesReceived);
for (ProgressInfo progress : info.getReceivingFiles())
{
out.printf(" %s%n", progress.toString(printPort));
}
}
@VisibleForTesting
public void printSendingSummaries(PrintStream out, SessionInfo info, boolean printHumanReadable)
{
long totalFilesToSend = info.getTotalFilesToSend();
long totalSizeToSend = info.getTotalSizeToSend();
long totalFilesSent = info.getTotalFilesSent();
long totalSizeSent = info.getTotalSizeSent();
double percentageFilesSent = ((double) totalFilesSent / totalFilesToSend) * 100;
double percentageSizeSent = ((double) totalSizeSent / totalSizeToSend) * 100;
out.printf(" Sending %d files, %s total. Already sent %d files (%.2f%%), %s total (%.2f%%)%n",
totalFilesToSend,
printHumanReadable ? FileUtils.stringifyFileSize(totalSizeToSend) : Long.toString(totalSizeToSend) + " bytes",
totalFilesSent,
percentageFilesSent,
printHumanReadable ? FileUtils.stringifyFileSize(totalSizeSent) : Long.toString(totalSizeSent) + " bytes",
percentageSizeSent);
for (ProgressInfo progress : info.getSendingFiles())
{
out.printf(" %s%n", progress.toString(printPort));
}
}
}