Package org.apache.cassandra.db

Examples of org.apache.cassandra.db.ColumnFamilyStoreMBean

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        outs.println("RemovalStatus: " + probe.getRemovalStatus());
    }

    private void printCfHistograms(String keySpace, String columnFamily, PrintStream output)
    {
        ColumnFamilyStoreMBean store = this.probe.getCfsProxy(keySpace, columnFamily);

        // default is 90 offsets
        long[] offsets = new EstimatedHistogram().getBucketOffsets();

        long[] rrlh = store.getRecentReadLatencyHistogramMicros();
        long[] rwlh = store.getRecentWriteLatencyHistogramMicros();
        long[] sprh = store.getRecentSSTablesPerReadHistogram();
        long[] ersh = store.getEstimatedRowSizeHistogram();
        long[] ecch = store.getEstimatedColumnCountHistogram();

        output.println(String.format("%s/%s histograms", keySpace, columnFamily));

        output.println(String.format("%-10s%10s%18s%18s%18s%18s",
                                     "Offset", "SSTables", "Write Latency", "Read Latency", "Row Size", "Column Count"));
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     *
     * @param outs the stream to write to
     */
    public void getCompactionThreshold(PrintStream outs, String ks, String cf)
    {
        ColumnFamilyStoreMBean cfsProxy = getCfsProxy(ks, cf);
        outs.println("Current compaction thresholds for " + ks + "/" + cf + ": \n" +
                     " min = " + cfsProxy.getMinimumCompactionThreshold() + ", " +
                     " max = " + cfsProxy.getMaximumCompactionThreshold());
    }
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     * @param minimumCompactionThreshold minimum compaction threshold
     * @param maximumCompactionThreshold maximum compaction threshold
     */
    public void setCompactionThreshold(String ks, String cf, int minimumCompactionThreshold, int maximumCompactionThreshold)
    {
        ColumnFamilyStoreMBean cfsProxy = getCfsProxy(ks, cf);
        cfsProxy.setMinimumCompactionThreshold(minimumCompactionThreshold);
        cfsProxy.setMaximumCompactionThreshold(maximumCompactionThreshold);
    }
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        }
    }
   
    public ColumnFamilyStoreMBean getCfsProxy(String ks, String cf)
    {
        ColumnFamilyStoreMBean cfsProxy = null;
        try
        {
            cfsProxy = JMX.newMBeanProxy(mbeanServerConn,
                    new ObjectName("org.apache.cassandra.db:type=ColumnFamilies,keyspace="+ks+",columnfamily="+cf),
                    ColumnFamilyStoreMBean.class);
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    public Entry<String, ColumnFamilyStoreMBean> next()
    {
        ObjectName objectName = resIter.next();
        String tableName = objectName.getKeyProperty("keyspace");
        ColumnFamilyStoreMBean cfsProxy = JMX.newMBeanProxy(mbeanServerConn, objectName, ColumnFamilyStoreMBean.class);
        return new AbstractMap.SimpleImmutableEntry<String, ColumnFamilyStoreMBean>(tableName, cfsProxy);
    }
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            // get a list of column family stores
            query = new ObjectName("org.apache.cassandra.db:type=ColumnFamilyStores,*");
            Set<ObjectName> result = mbeanServerConn.queryNames(query, null);
            for (ObjectName objectName: result) {
                String tableName = objectName.getKeyProperty("name");
                ColumnFamilyStoreMBean cfsProxy = JMX.newMBeanProxy(
                        mbeanServerConn, objectName, ColumnFamilyStoreMBean.class);
               
                if (!cfstoreMap.containsKey(tableName)) {
                    List <ColumnFamilyStoreMBean> columnFamilies = new ArrayList<ColumnFamilyStoreMBean>();
                    columnFamilies.add(cfsProxy);
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    }

    private void describeColumnFamily(KsDef ks_def, CfDef cf_def, NodeProbe probe) throws TException
    {
        // fetching bean for current column family store
        ColumnFamilyStoreMBean cfMBean = (probe == null) ? null : probe.getCfsProxy(ks_def.getName(), cf_def.getName());

        boolean isSuper = cf_def.column_type.equals("Super");
        sessionState.out.printf("    ColumnFamily: %s%s%n", cf_def.name, isSuper ? " (Super)" : "");

        if (cf_def.comment != null && !cf_def.comment.isEmpty())
            sessionState.out.printf("    \"%s\"%n", cf_def.comment);

        if (cf_def.key_validation_class != null)
            sessionState.out.printf("      Key Validation Class: %s%n", cf_def.key_validation_class);

        if (cf_def.default_validation_class != null)
            sessionState.out.printf("      Default column value validator: %s%n", cf_def.default_validation_class);

        sessionState.out.printf("      Columns sorted by: %s%s%n", cf_def.comparator_type, cf_def.column_type.equals("Super") ? "/" + cf_def.subcomparator_type : "");
        sessionState.out.printf("      GC grace seconds: %s%n", cf_def.gc_grace_seconds);
        sessionState.out.printf("      Compaction min/max thresholds: %s/%s%n", cf_def.min_compaction_threshold, cf_def.max_compaction_threshold);
        sessionState.out.printf("      Read repair chance: %s%n", cf_def.read_repair_chance);
        sessionState.out.printf("      DC Local Read repair chance: %s%n", cf_def.dclocal_read_repair_chance);
        sessionState.out.printf("      Replicate on write: %s%n", cf_def.replicate_on_write);
        sessionState.out.printf("      Caching: %s%n", cf_def.caching);
        sessionState.out.printf("      Bloom Filter FP chance: %s%n", cf_def.isSetBloom_filter_fp_chance() ? cf_def.bloom_filter_fp_chance : "default");

        // if we have connection to the cfMBean established
        if (cfMBean != null)
            sessionState.out.printf("      Built indexes: %s%n", cfMBean.getBuiltIndexes());

        if (cf_def.getColumn_metadataSize() != 0)
        {
            String leftSpace = "      ";
            String columnLeftSpace = leftSpace + "    ";
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        while (cfamilies.hasNext())
        {
            Entry<String, ColumnFamilyStoreMBean> entry = cfamilies.next();
            String tableName = entry.getKey();
            ColumnFamilyStoreMBean cfsProxy = entry.getValue();

            if (!cfstoreMap.containsKey(tableName))
            {
                List<ColumnFamilyStoreMBean> columnFamilies = new ArrayList<ColumnFamilyStoreMBean>();
                columnFamilies.add(cfsProxy);
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        outs.println("RemovalStatus: " + probe.getRemovalStatus());
    }

    private void printCfHistograms(String keySpace, String columnFamily, PrintStream output)
    {
        ColumnFamilyStoreMBean store = this.probe.getCfsProxy(keySpace, columnFamily);

        // default is 90 offsets
        long[] offsets = new EstimatedHistogram().getBucketOffsets();

        long[] rrlh = store.getRecentReadLatencyHistogramMicros();
        long[] rwlh = store.getRecentWriteLatencyHistogramMicros();
        long[] sprh = store.getRecentSSTablesPerReadHistogram();
        long[] ersh = store.getEstimatedRowSizeHistogram();
        long[] ecch = store.getEstimatedColumnCountHistogram();

        output.println(String.format("%s/%s histograms", keySpace, columnFamily));

        output.println(String.format("%-10s%10s%18s%18s%18s%18s",
                                     "Offset", "SSTables", "Write Latency", "Read Latency", "Row Size", "Column Count"));
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     *
     * @param outs the stream to write to
     */
    public void getCompactionThreshold(PrintStream outs, String ks, String cf)
    {
        ColumnFamilyStoreMBean cfsProxy = getCfsProxy(ks, cf);
        outs.println("Current compaction thresholds for " + ks + "/" + cf + ": \n" +
                     " min = " + cfsProxy.getMinimumCompactionThreshold() + ", " +
                     " max = " + cfsProxy.getMaximumCompactionThreshold());
    }
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