Example usage for io.netty.buffer PooledByteBufAllocator metric

Introduction

In this page you can find the example usage for io.netty.buffer PooledByteBufAllocator metric.

Prototype

PooledByteBufAllocatorMetric metric

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Usage

From source file:org.apache.spark.network.util.NettyMemoryMetrics.java

License:Apache License

private void registerMetrics(PooledByteBufAllocator allocator) {
    PooledByteBufAllocatorMetric pooledAllocatorMetric = allocator.metric();

    // Register general metrics.
    allMetrics.put(MetricRegistry.name(metricPrefix, "usedHeapMemory"),
            (Gauge<Long>) () -> pooledAllocatorMetric.usedHeapMemory());
    allMetrics.put(MetricRegistry.name(metricPrefix, "usedDirectMemory"),
            (Gauge<Long>) () -> pooledAllocatorMetric.usedDirectMemory());

    if (verboseMetricsEnabled) {
        int directArenaIndex = 0;
        for (PoolArenaMetric metric : pooledAllocatorMetric.directArenas()) {
            registerArenaMetric(metric, "directArena" + directArenaIndex);
            directArenaIndex++;//  w w  w  .  j a  va 2 s  .  c o m
        }

        int heapArenaIndex = 0;
        for (PoolArenaMetric metric : pooledAllocatorMetric.heapArenas()) {
            registerArenaMetric(metric, "heapArena" + heapArenaIndex);
            heapArenaIndex++;
        }
    }
}

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