Ted Yu created HBASE-17064:
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Summary: Add TaskMonitor#getTasks() variant which accepts type
selection
Key: HBASE-17064
URL: https://issues.apache.org/jira/browse/HBASE-17064
Project: HBase
Issue Type: Improvement
Reporter: Ted Yu
Priority: Minor
In TaskMonitorTmpl.jamon :
{code}
List<? extends MonitoredTask> tasks = taskMonitor.getTasks();
Iterator<? extends MonitoredTask> iter = tasks.iterator();
// apply requested filter
while (iter.hasNext()) {
MonitoredTask t = iter.next();
if (filter.equals("general")) {
if (t instanceof MonitoredRPCHandler)
iter.remove();
{code}
This means when user refreshes rs-status page, regardless of the type of
filter, we always traverse and clone MonitoredTask's.
getTasks() is synchronized :
{code}
public synchronized List<MonitoredTask> getTasks() {
{code}
A variant of getTasks() can be added which takes the type of filter so that
unnecessary cloning is avoided.
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