dcapwell commented on a change in pull request #470: CASSANDRA-15630 fix
testSerializeError
URL: https://github.com/apache/cassandra/pull/470#discussion_r393923231
##########
File path: test/unit/org/apache/cassandra/net/ConnectionUtils.java
##########
@@ -240,6 +247,27 @@ private void doCheck(FailCheck testAndFailCheck)
}
}
+ private static void longCheck(Runnable assertion, long timeout, TimeUnit
timeUnit)
+ {
+ long start = System.currentTimeMillis();
+ for (;;)
+ {
+ try
+ {
+ assertion.run();
+ return;
+ }
+ catch (AssertionError e)
+ {
+ long elapsedMs = System.currentTimeMillis() - start;
+ if (elapsedMs > timeUnit.toMillis(timeout))
+ throw e;
+ else
+ Uninterruptibles.sleepUninterruptibly(5,
TimeUnit.MILLISECONDS);
Review comment:
may want to take a look at the `org.apache.cassandra.utils.Retry` class. I
created it recently since I didn't find common utils for retries.
```
long maxDurationNanos = timeUnit.toMillis(timeout);
long startNanos = System.nanoTime();
Retry.retryWithBackoffBlocking(Integer.MAX_VALUE, () -> assertion.run(),
(cause) -> {
if (!(cause instanceOf AssertionError)
return false;
return (System.nanoTime() - startNanos) <= maxDurationNanos;
});
```
the main differences are:
1) retry doesn't block thread, only result (if you ask for blocking)
2) default to exponential backoff
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