Github user benqiu2016 commented on a diff in the pull request:
https://github.com/apache/nifi-minifi-cpp/pull/74#discussion_r109758846
--- Diff: libminifi/src/provenance/ProvenanceRepository.cpp ---
@@ -36,6 +36,7 @@ void ProvenanceRepository::run() {
uint64_t curTime = getTimeMillis();
uint64_t size = repoSize();
if (size >= purgeThreshold) {
+ std::lock_guard<std::mutex> lock(mutex_);
--- End diff --
yes, levelDB is thread save, but when we purge the record in
provenanceRepository task, i do not want to ProvenanceReportTask to pick the
record and ship to NiFi.
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