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fix a rare race condition in treeaction timeout detection #38

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merged 3 commits into from
Jan 26, 2021
Merged

fix a rare race condition in treeaction timeout detection #38

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3173bfb
fix a rare race condition in treeaction timeout detection
Jan 22, 2021
5ac3a39
WORK: adjust for Retry exhausted scenario
Jan 26, 2021
db140f4
WORK: update the comment
Jan 26, 2021
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47 changes: 30 additions & 17 deletions Forge.TreeWalker/src/TreeWalkerSession.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -795,25 +795,21 @@ internal async Task PerformActionTypeBehavior(TreeNode treeNode, string treeNode
return;
}

break;
// Retries are exhausted. Throw ActionTimeoutException with executeAction exception as innerException.
throw new ActionTimeoutException(
string.Format(
"Action did not complete successfully with retry attempts exhausted. TreeNodeKey: {0}, TreeActionKey: {1}, ActionName: {2}, RetryCount: {3}, RetryPolicy: {4}",
treeNodeKey,
treeActionKey,
treeAction.Action,
retryCount,
retryPolicyType),
innerException);
}

// Break out early if we would hit timeout before next retry.
if (actionTimeout != -1 && stopwatch.ElapsedMilliseconds + waitTime.TotalMilliseconds >= actionTimeout)
{
// If the timeout is hit and the ContinuationOnTimeout flag is set, commit a new ActionResponse.
// with the status set to TimeoutOnAction and return.
if (treeAction.ContinuationOnTimeout)
{
ActionResponse timeoutResponse = new ActionResponse
{
Status = "TimeoutOnAction"
};

await this.CommitActionResponse(treeActionKey, timeoutResponse).ConfigureAwait(false);
return;
}

break;
}

Expand All @@ -823,15 +819,32 @@ internal async Task PerformActionTypeBehavior(TreeNode treeNode, string treeNode
maxRetryCount--;
}

// Retries are exhausted. Throw ActionTimeoutException with executeAction exception as innerException.
if (actionTimeout != -1 && stopwatch.ElapsedMilliseconds + waitTime.TotalMilliseconds >= actionTimeout)
{
// If the timeout is hit and the ContinuationOnTimeout flag is set, commit a new ActionResponse.
// with the status set to TimeoutOnAction and return.
if (treeAction.ContinuationOnTimeout)
{
ActionResponse timeoutResponse = new ActionResponse
{
Status = "TimeoutOnAction"
};

await this.CommitActionResponse(treeActionKey, timeoutResponse).ConfigureAwait(false);
return;
}
}

// Action timeout is reached. Throw ActionTimeoutException with executeAction exception as innerException.
throw new ActionTimeoutException(
string.Format(
"Action did not complete successfully. TreeNodeKey: {0}, TreeActionKey: {1}, ActionName: {2}, RetryCount: {3}, RetryPolicy: {4}",
"Action did not complete successfully with timeout reached. TreeNodeKey: {0}, TreeActionKey: {1}, ActionName: {2}, RetryCount: {3}, RetryPolicy: {4}, Timeout: {5}",
treeNodeKey,
treeActionKey,
treeAction.Action,
retryCount,
retryPolicyType),
retryPolicyType,
actionTimeout),
innerException);
}

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