Huaxiang Sun created HBASE-26108:
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Summary: add option to disable scanMetrics in
TableSnapshotInputFormat
Key: HBASE-26108
URL: https://issues.apache.org/jira/browse/HBASE-26108
Project: HBase
Issue Type: Improvement
Affects Versions: 2.3.5
Reporter: Huaxiang Sun
Assignee: Huaxiang Sun
When running spark job with TableSnapshotInputFormat, we found that scan is
very slower. We found that scanMetrics is hardcoded as enabled, spark's
newAPIHadoopRDD uses DummyReporter in hadoop, which causes the following
exception and 80% cpu time is spent on this exception handling.
Need to provide an option to disable scanMetrics.
[email protected]/java.lang.Throwable.fillInStackTrace(Native Method)
[email protected]/java.lang.Throwable.fillInStackTrace(Throwable.java:787) =>
holding Monitor(java.util.MissingResourceException@258206255})
[email protected]/java.lang.Throwable.<init>(Throwable.java:292)
[email protected]/java.lang.Exception.<init>(Exception.java:84)
[email protected]/java.lang.RuntimeException.<init>(RuntimeException.java:80)
[email protected]/java.util.MissingResourceException.<init>(MissingResourceException.java:85)
[email protected]/java.util.ResourceBundle.throwMissingResourceException(ResourceBundle.java:2055)
[email protected]/java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1689)
[email protected]/java.util.ResourceBundle.getBundleImpl(ResourceBundle.java:1593)
[email protected]/java.util.ResourceBundle.getBundle(ResourceBundle.java:1284)
app//org.apache.hadoop.mapreduce.util.ResourceBundles.getBundle(ResourceBundles.java:37)
app//org.apache.hadoop.mapreduce.util.ResourceBundles.getValue(ResourceBundles.java:56)
=> holding Monitor(java.lang.Class@545605549})
app//org.apache.hadoop.mapreduce.util.ResourceBundles.getCounterGroupName(ResourceBundles.java:77)
app//org.apache.hadoop.mapreduce.counters.CounterGroupFactory.newGroup(CounterGroupFactory.java:94)
app//org.apache.hadoop.mapreduce.counters.AbstractCounters.getGroup(AbstractCounters.java:227)
app//org.apache.hadoop.mapreduce.counters.AbstractCounters.findCounter(AbstractCounters.java:154)
app//org.apache.hadoop.mapreduce.task.TaskAttemptContextImpl$DummyReporter.getCounter(TaskAttemptContextImpl.java:110)
app//org.apache.hadoop.mapreduce.task.TaskAttemptContextImpl.getCounter(TaskAttemptContextImpl.java:76)
org.apache.hadoop.hbase.mapreduce.TableRecordReaderImpl.updateCounters(TableRecordReaderImpl.java:311)
org.apache.hadoop.hbase.mapreduce.TableSnapshotInputFormat$TableSnapshotRegionRecordReader.nextKeyValue(TableSnapshotInputFormat.java:167)
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