Example usage for org.apache.cassandra.db ColumnFamilyStoreMBean estimateKeys

Introduction

In this page you can find the example usage for org.apache.cassandra.db ColumnFamilyStoreMBean estimateKeys.

Prototype

public long estimateKeys();

Source Link

Usage

From source file:edu.tsinghua.software.cassandra.tools.ClusterManager.java

License:Apache License

public int getEstimateRowNumber(String keyspace, String columnFamily) {
    int number = -1;
    ArrayList<KsStats> ksStatsList = printColumnFamilyStats();

    for (KsStats ksStats : ksStatsList) {
        if (keyspace.equals(ksStats.getKsName())) {
            List<ColumnFamilyStoreMBean> columnFamilies = ksStats.getColumnFamilies();
            for (ColumnFamilyStoreMBean cfstore : columnFamilies) {
                if (columnFamily.endsWith(cfstore.getColumnFamilyName())) {
                    number = (int) cfstore.estimateKeys();
                }// w w w.  j a v a 2s .c o  m
            }
        }
    }
    return number;
}

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From source file:org.wso2.carbon.cassandra.cluster.mgt.query.ClusterMBeanServiceHandler.java

License:Open Source License

private ColumnFamilyInformation getColumnFamilyStats(ColumnFamilyStoreMBean cfsProxy) {
    ColumnFamilyInformation columnFamilyInformation = new ColumnFamilyInformation();
    columnFamilyInformation.setColumnFamilyName(cfsProxy.getColumnFamilyName());
    columnFamilyInformation.setSSTableCount(cfsProxy.getLiveSSTableCount());
    columnFamilyInformation.setLiveDiskSpaceUsed(cfsProxy.getLiveDiskSpaceUsed());
    columnFamilyInformation.setTotalDiskSpaceUsed(cfsProxy.getTotalDiskSpaceUsed());
    columnFamilyInformation.setNumberOfKeys(cfsProxy.estimateKeys());
    columnFamilyInformation.setMemtableSwitchCount(cfsProxy.getMemtableSwitchCount());
    columnFamilyInformation.setReadCount(cfsProxy.getReadCount());
    columnFamilyInformation.setReadLatency(cfsProxy.getRecentReadLatencyMicros());
    columnFamilyInformation.setWriteCount(cfsProxy.getWriteCount());
    columnFamilyInformation.setWriteLatency(cfsProxy.getRecentWriteLatencyMicros());
    columnFamilyInformation.setPendingTasks(cfsProxy.getPendingTasks());
    columnFamilyInformation.setBloomFilterFalsePostives(cfsProxy.getBloomFilterFalsePositives());
    columnFamilyInformation.setBloomFilterFalseRatio(cfsProxy.getRecentBloomFilterFalseRatio());
    columnFamilyInformation.setBloomFilterSpaceUsed(cfsProxy.getBloomFilterDiskSpaceUsed());
    columnFamilyInformation.setCompactedRowMinimumSize(cfsProxy.getMinRowSize());
    columnFamilyInformation.setCompactedRowMeanSize(cfsProxy.getMaxRowSize());
    columnFamilyInformation.setCompactedRowMeanSize(cfsProxy.getMeanRowSize());
    return columnFamilyInformation;
}

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