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add upper bound to time spent in fetchLedgerPage

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This commit is contained in:
CJ Cobb
2021-10-05 18:53:53 -04:00
parent 8e15adcd74
commit 8966178702
1 changed files with 7 additions and 6 deletions
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13
src/backend/BackendInterface.cpp
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@@ -196,6 +196,7 @@ BackendInterface::fetchLedgerPage(
uint32_t adjustedLimit = std::max(limitHint, std::max(limit, (uint32_t)4));
LedgerPage page;
page.cursor = cursor;
long totalTime = 0;
do
{
adjustedLimit = adjustedLimit >= 8192 ? 8192 : adjustedLimit * 2;
@@ -207,18 +208,18 @@ BackendInterface::fetchLedgerPage(
page.cursor ? ripple::strHex(*page.cursor) : "";
std::string partialCursorStr =
partial.cursor ? ripple::strHex(*partial.cursor) : "";
auto thisTime =
std::chrono::duration_cast<std::chrono::milliseconds>(end - start)
.count();
BOOST_LOG_TRIVIAL(debug)
<< __func__ << " " << std::to_string(ledgerSequence) << " "
<< std::to_string(adjustedLimit) << " " << pageCursorStr << " - "
<< partialCursorStr << " - time = "
<< std::to_string(
std::chrono::duration_cast<std::chrono::milliseconds>(
end - start)
.count());
<< partialCursorStr << " - time = " << std::to_string(thisTime);
totalTime += thisTime;
page.objects.insert(
page.objects.end(), partial.objects.begin(), partial.objects.end());
page.cursor = partial.cursor;
} while (page.objects.size() < limit && page.cursor);
} while (page.objects.size() < limit && page.cursor && totalTime < 5000);
if (incomplete)
{
auto rng = fetchLedgerRange();