本文整理汇总了Java中org.apache.hadoop.mapreduce.Counter.increment方法的典型用法代码示例。如果您正苦于以下问题:Java Counter.increment方法的具体用法?Java Counter.increment怎么用?Java Counter.increment使用的例子?那么, 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.hadoop.mapreduce.Counter
的用法示例。
在下文中一共展示了Counter.increment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: updateCounters
import org.apache.hadoop.mapreduce.Counter; //导入方法依赖的package包/类
protected static void updateCounters(ScanMetrics scanMetrics, long numScannerRestarts,
Method getCounter, TaskAttemptContext context, long numStale) {
// we can get access to counters only if hbase uses new mapreduce APIs
if (getCounter == null) {
return;
}
try {
for (Map.Entry<String, Long> entry:scanMetrics.getMetricsMap().entrySet()) {
Counter ct = (Counter)getCounter.invoke(context,
HBASE_COUNTER_GROUP_NAME, entry.getKey());
ct.increment(entry.getValue());
}
((Counter) getCounter.invoke(context, HBASE_COUNTER_GROUP_NAME,
"NUM_SCANNER_RESTARTS")).increment(numScannerRestarts);
((Counter) getCounter.invoke(context, HBASE_COUNTER_GROUP_NAME,
"NUM_SCAN_RESULTS_STALE")).increment(numStale);
} catch (Exception e) {
LOG.debug("can't update counter." + StringUtils.stringifyException(e));
}
}
示例2: incrAllCounters
import org.apache.hadoop.mapreduce.Counter; //导入方法依赖的package包/类
@Override
public void incrAllCounters(CounterGroupBase<T> rightGroup) {
try {
for (Counter right : rightGroup) {
Counter left = findCounter(right.getName(), right.getDisplayName());
left.increment(right.getValue());
}
} catch (LimitExceededException e) {
counters.clear();
throw e;
}
}
示例3: map
import org.apache.hadoop.mapreduce.Counter; //导入方法依赖的package包/类
@Override
protected void map(ImmutableBytesWritable key, Result value, Context context)
throws IOException, InterruptedException {
byte[] row = value.getRow();
Counter c = getCounter(row);
c.increment(1);
}
示例4: parseEscapedCompactString
import org.apache.hadoop.mapreduce.Counter; //导入方法依赖的package包/类
/**
* Parse a pre 0.21 counters string into a counter object.
* @param <C> type of the counter
* @param <G> type of the counter group
* @param <T> type of the counters object
* @param compactString to parse
* @param counters an empty counters object to hold the result
* @return the counters object holding the result
* @throws ParseException
*/
@SuppressWarnings("deprecation")
public static <C extends Counter, G extends CounterGroupBase<C>,
T extends AbstractCounters<C, G>>
T parseEscapedCompactString(String compactString, T counters)
throws ParseException {
IntWritable index = new IntWritable(0);
// Get the group to work on
String groupString =
getBlock(compactString, GROUP_OPEN, GROUP_CLOSE, index);
while (groupString != null) {
IntWritable groupIndex = new IntWritable(0);
// Get the actual name
String groupName =
StringInterner.weakIntern(getBlock(groupString, UNIT_OPEN, UNIT_CLOSE, groupIndex));
groupName = StringInterner.weakIntern(unescape(groupName));
// Get the display name
String groupDisplayName =
StringInterner.weakIntern(getBlock(groupString, UNIT_OPEN, UNIT_CLOSE, groupIndex));
groupDisplayName = StringInterner.weakIntern(unescape(groupDisplayName));
// Get the counters
G group = counters.getGroup(groupName);
group.setDisplayName(groupDisplayName);
String counterString =
getBlock(groupString, COUNTER_OPEN, COUNTER_CLOSE, groupIndex);
while (counterString != null) {
IntWritable counterIndex = new IntWritable(0);
// Get the actual name
String counterName =
StringInterner.weakIntern(getBlock(counterString, UNIT_OPEN, UNIT_CLOSE, counterIndex));
counterName = StringInterner.weakIntern(unescape(counterName));
// Get the display name
String counterDisplayName =
StringInterner.weakIntern(getBlock(counterString, UNIT_OPEN, UNIT_CLOSE, counterIndex));
counterDisplayName = StringInterner.weakIntern(unescape(counterDisplayName));
// Get the value
long value =
Long.parseLong(getBlock(counterString, UNIT_OPEN, UNIT_CLOSE,
counterIndex));
// Add the counter
Counter counter = group.findCounter(counterName);
counter.setDisplayName(counterDisplayName);
counter.increment(value);
// Get the next counter
counterString =
getBlock(groupString, COUNTER_OPEN, COUNTER_CLOSE, groupIndex);
}
groupString = getBlock(compactString, GROUP_OPEN, GROUP_CLOSE, index);
}
return counters;
}