本文整理汇总了Java中org.apache.cassandra.db.ColumnFamilyStoreMBean.getEstimatedColumnCountHistogram方法的典型用法代码示例。如果您正苦于以下问题：Java ColumnFamilyStoreMBean.getEstimatedColumnCountHistogram方法的具体用法？Java ColumnFamilyStoreMBean.getEstimatedColumnCountHistogram怎么用？Java ColumnFamilyStoreMBean.getEstimatedColumnCountHistogram使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.cassandra.db.ColumnFamilyStoreMBean的用法示例。
在下文中一共展示了ColumnFamilyStoreMBean.getEstimatedColumnCountHistogram方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: printCfHistograms
import org.apache.cassandra.db.ColumnFamilyStoreMBean; //导入方法依赖的package包/类
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", "Partition Size", "Cell Count"));
output.println(String.format("%-10s%10s%18s%18s%18s%18s",
"", "", "(micros)", "(micros)", "(bytes)", ""));
for (int i = 0; i < offsets.length; i++)
{
output.println(String.format("%-10d%10s%18s%18s%18s%18s",
offsets[i],
(i < sprh.length ? sprh[i] : "0"),
(i < rwlh.length ? rwlh[i] : "0"),
(i < rrlh.length ? rrlh[i] : "0"),
(i < ersh.length ? ersh[i] : "0"),
(i < ecch.length ? ecch[i] : "0")));
}
}
示例2: printCfHistograms
import org.apache.cassandra.db.ColumnFamilyStoreMBean; //导入方法依赖的package包/类
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"));
for (int i = 0; i < offsets.length; i++)
{
output.println(String.format("%-10d%10s%18s%18s%18s%18s",
offsets[i],
(i < sprh.length ? sprh[i] : "0"),
(i < rwlh.length ? rwlh[i] : "0"),
(i < rrlh.length ? rrlh[i] : "0"),
(i < ersh.length ? ersh[i] : "0"),
(i < ecch.length ? ecch[i] : "0")));
}
}
示例3: printCfHistograms
import org.apache.cassandra.db.ColumnFamilyStoreMBean; //导入方法依赖的package包/类
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"));
for (int i = 0; i < offsets.length; i++)
{
output.println(String.format("%-10d%10s%18s%18s%18s%18s",
offsets[i],
(i < sprh.length ? sprh[i] : ""),
(i < rwlh.length ? rrlh[i] : ""),
(i < rrlh.length ? rwlh[i] : ""),
(i < ersh.length ? ersh[i] : ""),
(i < ecch.length ? ecch[i] : "")));
}
}
示例4: execute
import org.apache.cassandra.db.ColumnFamilyStoreMBean; //导入方法依赖的package包/类
@Override
public void execute(NodeProbe probe)
{
checkArgument(args.size() == 2, "cfhistograms requires ks and cf args");
String keyspace = args.get(0);
String cfname = args.get(1);
ColumnFamilyStoreMBean store = probe.getCfsProxy(keyspace, cfname);
long[] estimatedRowSizeHistogram = store.getEstimatedRowSizeHistogram();
long[] estimatedColumnCountHistogram = store.getEstimatedColumnCountHistogram();
if (ArrayUtils.isEmpty(estimatedRowSizeHistogram) || ArrayUtils.isEmpty(estimatedColumnCountHistogram))
{
System.err.println("No SSTables exists, unable to calculate 'Partition Size' and 'Cell Count' percentiles");
}
// calculate percentile of row size and column count
String[] percentiles = new String[]{"50%", "75%", "95%", "98%", "99%", "Min", "Max"};
double[] readLatency = probe.metricPercentilesAsArray(store.getRecentReadLatencyHistogramMicros());
double[] writeLatency = probe.metricPercentilesAsArray(store.getRecentWriteLatencyHistogramMicros());
double[] estimatedRowSizePercentiles = probe.metricPercentilesAsArray(estimatedRowSizeHistogram);
double[] estimatedColumnCountPercentiles = probe.metricPercentilesAsArray(estimatedColumnCountHistogram);
double[] sstablesPerRead = probe.metricPercentilesAsArray(store.getRecentSSTablesPerReadHistogram());
System.out.println(format("%s/%s histograms", keyspace, cfname));
System.out.println(format("%-10s%10s%18s%18s%18s%18s",
"Percentile", "SSTables", "Write Latency", "Read Latency", "Partition Size", "Cell Count"));
System.out.println(format("%-10s%10s%18s%18s%18s%18s",
"", "", "(micros)", "(micros)", "(bytes)", ""));
for (int i = 0; i < percentiles.length; i++)
{
System.out.println(format("%-10s%10.2f%18.2f%18.2f%18.0f%18.0f",
percentiles[i],
sstablesPerRead[i],
writeLatency[i],
readLatency[i],
estimatedRowSizePercentiles[i],
estimatedColumnCountPercentiles[i]));
}
System.out.println();
}