Example usage for org.apache.cassandra.tools.nodetool SetHostStat size

Introduction

In this page you can find the example usage for org.apache.cassandra.tools.nodetool SetHostStat size.

Prototype

public int size() 

Source Link

Usage

From source file:com.wenyu.clustertools.Ring.java

License:Apache License

private void printDc(ClusterToolNodeProbe 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);
        }/*from   w  ww .  ja  v a  2 s . c o m*/

        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();
    }

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