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Always close transport to prevent resource leak #46

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Always close transport to prevent resource leak #46

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5 changes: 5 additions & 0 deletions core/src/main/java/com/uber/m3/tally/ScopeBuilder.java
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Original file line number Diff line number Diff line change
Expand Up @@ -153,6 +153,11 @@ public Scope reportEvery(Duration interval) {
public Scope reportEvery(Duration interval,
Thread.UncaughtExceptionHandler uncaughtExceptionHandler) {
if (interval.compareTo(Duration.ZERO) <= 0) {
if (reporter != null) {
// The underlying transport in the reporter may have been opened at this point, so make sure to close
// that to not leak resources.
reporter.close();
}
throw new IllegalArgumentException("Reporting interval must be a positive Duration");
}

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3 changes: 3 additions & 0 deletions m3/src/main/java/com/uber/m3/tally/m3/M3Reporter.java
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Expand Up @@ -153,6 +153,9 @@ private M3Reporter(Builder builder) {

addAndRunProcessor(builder.metricTagSet);
} catch (TTransportException | SocketException e) {
if (transport != null) {
transport.close();
}
throw new RuntimeException("Exception creating M3Reporter", e);
}
}
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