Kuhu Shukla created MAPREDUCE-6473:
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Summary: Job submission can take a long time during Cluster
initialization
Key: MAPREDUCE-6473
URL: https://issues.apache.org/jira/browse/MAPREDUCE-6473
Project: Hadoop Map/Reduce
Issue Type: Improvement
Reporter: Kuhu Shukla
Assignee: Kuhu Shukla
During initialization in Cluster.java, the framework provider classes are
loaded inside a sync block which can considerably increase job submission time
when the number of submissions are high. The motive is to reduce time spent in
this sync block safely to improve performance.
{noformat}
synchronized (frameworkLoader) {
for (ClientProtocolProvider provider : frameworkLoader) {
LOG.debug("Trying ClientProtocolProvider : "
+ provider.getClass().getName());
{noformat}
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