Package org.apache.cassandra.service

Examples of org.apache.cassandra.service.CacheServiceMBean

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        outs.printf("%-17s: %s%n", "Rack", probe.getRack());

        // Exceptions
        outs.printf("%-17s: %s%n", "Exceptions", probe.getExceptionCount());

        CacheServiceMBean cacheService = probe.getCacheServiceMBean();

        // Key Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Key Cache",
                    cacheService.getKeyCacheSize(),
                    cacheService.getKeyCacheCapacityInBytes(),
                    cacheService.getKeyCacheHits(),
                    cacheService.getKeyCacheRequests(),
                    cacheService.getKeyCacheRecentHitRate(),
                    cacheService.getKeyCacheSavePeriodInSeconds());

        // Row Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Row Cache",
                    cacheService.getRowCacheSize(),
                    cacheService.getRowCacheCapacityInBytes(),
                    cacheService.getRowCacheHits(),
                    cacheService.getRowCacheRequests(),
                    cacheService.getRowCacheRecentHitRate(),
                    cacheService.getRowCacheSavePeriodInSeconds());

        if (toks.size() > 1 && cmd.hasOption(TOKENS_OPT.left))
        {
            for (String tok : toks)
                outs.printf("%-17s: %s%n", "Token", tok);
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    public void setCacheCapacities(String tableName, String cfName, int keyCacheCapacity, int rowCacheCapacity)
    {
        try
        {
            String keyCachePath = "org.apache.cassandra.db:type=Caches";
            CacheServiceMBean cacheMBean = JMX.newMBeanProxy(mbeanServerConn, new ObjectName(keyCachePath), CacheServiceMBean.class);
            cacheMBean.setKeyCacheCapacityInMB(keyCacheCapacity);
            cacheMBean.setRowCacheCapacityInMB(rowCacheCapacity);
        }
        catch (MalformedObjectNameException e)
        {
            throw new RuntimeException(e);
        }
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        outs.printf("%-17s: %s%n", "Rack", probe.getRack());

        // Exceptions
        outs.printf("%-17s: %s%n", "Exceptions", probe.getExceptionCount());

        CacheServiceMBean cacheService = probe.getCacheServiceMBean();

        // Key Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Key Cache",
                    cacheService.getKeyCacheSize(),
                    cacheService.getKeyCacheCapacityInBytes(),
                    cacheService.getKeyCacheHits(),
                    cacheService.getKeyCacheRequests(),
                    cacheService.getKeyCacheRecentHitRate(),
                    cacheService.getKeyCacheSavePeriodInSeconds());

        // Row Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Row Cache",
                    cacheService.getRowCacheSize(),
                    cacheService.getRowCacheCapacityInBytes(),
                    cacheService.getRowCacheHits(),
                    cacheService.getRowCacheRequests(),
                    cacheService.getRowCacheRecentHitRate(),
                    cacheService.getRowCacheSavePeriodInSeconds());
    }
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        outs.printf("%-17s: %s%n", "Rack", probe.getRack());

        // Exceptions
        outs.printf("%-17s: %s%n", "Exceptions", probe.getExceptionCount());

        CacheServiceMBean cacheService = probe.getCacheServiceMBean();

        // Key Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Key Cache",
                    cacheService.getKeyCacheSize(),
                    cacheService.getKeyCacheCapacityInBytes(),
                    cacheService.getKeyCacheHits(),
                    cacheService.getKeyCacheRequests(),
                    cacheService.getKeyCacheRecentHitRate(),
                    cacheService.getKeyCacheSavePeriodInSeconds());

        // Row Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Row Cache",
                    cacheService.getRowCacheSize(),
                    cacheService.getRowCacheCapacityInBytes(),
                    cacheService.getRowCacheHits(),
                    cacheService.getRowCacheRequests(),
                    cacheService.getRowCacheRecentHitRate(),
                    cacheService.getRowCacheSavePeriodInSeconds());
    }
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        outs.printf("%-17s: %s%n", "Rack", probe.getRack());

        // Exceptions
        outs.printf("%-17s: %s%n", "Exceptions", probe.getExceptionCount());

        CacheServiceMBean cacheService = probe.getCacheServiceMBean();

        // Key Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Key Cache",
                    cacheService.getKeyCacheSize(),
                    cacheService.getKeyCacheCapacityInBytes(),
                    cacheService.getKeyCacheHits(),
                    cacheService.getKeyCacheRequests(),
                    cacheService.getKeyCacheRecentHitRate(),
                    cacheService.getKeyCacheSavePeriodInSeconds());

        // Row Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Row Cache",
                    cacheService.getRowCacheSize(),
                    cacheService.getRowCacheCapacityInBytes(),
                    cacheService.getRowCacheHits(),
                    cacheService.getRowCacheRequests(),
                    cacheService.getRowCacheRecentHitRate(),
                    cacheService.getRowCacheSavePeriodInSeconds());

        if (toks.size() > 1 && cmd.hasOption(TOKENS_OPT.left))
        {
            for (String tok : toks)
                outs.printf("%-17s: %s%n", "Token", tok);
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        outs.printf("%-17s: %s%n", "Rack", probe.getRack());

        // Exceptions
        outs.printf("%-17s: %s%n", "Exceptions", probe.getExceptionCount());

        CacheServiceMBean cacheService = probe.getCacheServiceMBean();

        // Key Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Key Cache",
                    cacheService.getKeyCacheSize(),
                    cacheService.getKeyCacheCapacityInBytes(),
                    cacheService.getKeyCacheHits(),
                    cacheService.getKeyCacheRequests(),
                    cacheService.getKeyCacheRecentHitRate(),
                    cacheService.getKeyCacheSavePeriodInSeconds());

        // Row Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Row Cache",
                    cacheService.getRowCacheSize(),
                    cacheService.getRowCacheCapacityInBytes(),
                    cacheService.getRowCacheHits(),
                    cacheService.getRowCacheRequests(),
                    cacheService.getRowCacheRecentHitRate(),
                    cacheService.getRowCacheSavePeriodInSeconds());

        if (toks.size() > 1 && cmd.hasOption(TOKENS_OPT.left))
        {
            for (String tok : toks)
                outs.printf("%-17s: %s%n", "Token", tok);
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        outs.printf("%-17s: %s%n", "Rack", probe.getRack());

        // Exceptions
        outs.printf("%-17s: %s%n", "Exceptions", probe.getExceptionCount());

        CacheServiceMBean cacheService = probe.getCacheServiceMBean();

        // Key Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Key Cache",
                    cacheService.getKeyCacheSize(),
                    cacheService.getKeyCacheCapacityInBytes(),
                    cacheService.getKeyCacheHits(),
                    cacheService.getKeyCacheRequests(),
                    cacheService.getKeyCacheRecentHitRate(),
                    cacheService.getKeyCacheSavePeriodInSeconds());

        // Row Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Row Cache",
                    cacheService.getRowCacheSize(),
                    cacheService.getRowCacheCapacityInBytes(),
                    cacheService.getRowCacheHits(),
                    cacheService.getRowCacheRequests(),
                    cacheService.getRowCacheRecentHitRate(),
                    cacheService.getRowCacheSavePeriodInSeconds());

        if (toks.size() > 1 && cmd.hasOption(TOKENS_OPT.left))
        {
            for (String tok : toks)
                outs.printf("%-17s: %s%n", "Token", tok);
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        outs.printf("%-17s: %s%n", "Rack", probe.getRack());

        // Exceptions
        outs.printf("%-17s: %s%n", "Exceptions", probe.getExceptionCount());

        CacheServiceMBean cacheService = probe.getCacheServiceMBean();

        // Key Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Key Cache",
                    cacheService.getKeyCacheSize(),
                    cacheService.getKeyCacheCapacityInBytes(),
                    cacheService.getKeyCacheHits(),
                    cacheService.getKeyCacheRequests(),
                    cacheService.getKeyCacheRecentHitRate(),
                    cacheService.getKeyCacheSavePeriodInSeconds());

        // Row Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Row Cache",
                    cacheService.getRowCacheSize(),
                    cacheService.getRowCacheCapacityInBytes(),
                    cacheService.getRowCacheHits(),
                    cacheService.getRowCacheRequests(),
                    cacheService.getRowCacheRecentHitRate(),
                    cacheService.getRowCacheSavePeriodInSeconds());

        if (toks.size() > 1 && cmd.hasOption(TOKENS_OPT.left))
        {
            for (String tok : toks)
                outs.printf("%-17s: %s%n", "Token", tok);
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        outs.printf("%-17s: %s%n", "Rack", probe.getRack());

        // Exceptions
        outs.printf("%-17s: %s%n", "Exceptions", probe.getExceptionCount());

        CacheServiceMBean cacheService = probe.getCacheServiceMBean();

        // Key Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Key Cache",
                    cacheService.getKeyCacheSize(),
                    cacheService.getKeyCacheCapacityInBytes(),
                    cacheService.getKeyCacheHits(),
                    cacheService.getKeyCacheRequests(),
                    cacheService.getKeyCacheRecentHitRate(),
                    cacheService.getKeyCacheSavePeriodInSeconds());

        // Row Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Row Cache",
                    cacheService.getRowCacheSize(),
                    cacheService.getRowCacheCapacityInBytes(),
                    cacheService.getRowCacheHits(),
                    cacheService.getRowCacheRequests(),
                    cacheService.getRowCacheRecentHitRate(),
                    cacheService.getRowCacheSavePeriodInSeconds());

        if (toks.size() > 1 && cmd.hasOption(TOKENS_OPT.left))
        {
            for (String tok : toks)
                outs.printf("%-17s: %s%n", "Token", tok);
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        outs.printf("%-17s: %s%n", "Rack", probe.getRack());

        // Exceptions
        outs.printf("%-17s: %s%n", "Exceptions", probe.getExceptionCount());

        CacheServiceMBean cacheService = probe.getCacheServiceMBean();

        // Key Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Key Cache",
                    cacheService.getKeyCacheSize(),
                    cacheService.getKeyCacheCapacityInBytes(),
                    cacheService.getKeyCacheHits(),
                    cacheService.getKeyCacheRequests(),
                    cacheService.getKeyCacheRecentHitRate(),
                    cacheService.getKeyCacheSavePeriodInSeconds());

        // Row Cache: Hits, Requests, RecentHitRate, SavePeriodInSeconds
        outs.printf("%-17s: size %d (bytes), capacity %d (bytes), %d hits, %d requests, %.3f recent hit rate, %d save period in seconds%n",
                    "Row Cache",
                    cacheService.getRowCacheSize(),
                    cacheService.getRowCacheCapacityInBytes(),
                    cacheService.getRowCacheHits(),
                    cacheService.getRowCacheRequests(),
                    cacheService.getRowCacheRecentHitRate(),
                    cacheService.getRowCacheSavePeriodInSeconds());

        if (toks.size() > 1 && cmd.hasOption(TOKENS_OPT.left))
        {
            for (String tok : toks)
                outs.printf("%-17s: %s%n", "Token", tok);
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Related Classes of org.apache.cassandra.service.CacheServiceMBean

  • org.apache.cassandra.tools.NodeCmd
  • org.apache.cassandra.tools.NodeProbe
  • org.apache.cassandra.tools.NodeTool$Info
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