Github user benqiu2016 commented on a diff in the pull request:
https://github.com/apache/nifi-minifi-cpp/pull/62#discussion_r104320291
--- Diff: libminifi/src/Repository.cpp ---
@@ -0,0 +1,140 @@
+/**
+ * @file Repository.cpp
+ * Repository implemenatation
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <cstdint>
+#include <vector>
+#include <arpa/inet.h>
+#include "io/DataStream.h"
+#include "io/Serializable.h"
+#include "Relationship.h"
+#include "Logger.h"
+#include "FlowController.h"
+#include "Repository.h"
+#include "Provenance.h"
+#include "FlowFileRepository.h"
+
+const char *Repository::RepositoryTypeStr[MAX_REPO_TYPE] = {"Provenace
Repository", "FlowFile Repository"};
+uint64_t Repository::_repoSize[MAX_REPO_TYPE] = {0, 0};
+
+void Repository::start() {
+ if (!_enable)
+ return;
+ if (this->_purgePeriod <= 0)
+ return;
+ if (_running)
+ return;
+ _running = true;
+ logger_->log_info("%s Repository Monitor Thread Start",
RepositoryTypeStr[_type]);
+ _thread = new std::thread(run, this);
+ _thread->detach();
+}
+
+void Repository::stop() {
+ if (!_running)
+ return;
+ _running = false;
+ logger_->log_info("%s Repository Monitor Thread Stop",
RepositoryTypeStr[_type]);
+}
+
+void Repository::run(Repository *repo) {
+ // threshold for purge
+ uint64_t purgeThreshold = repo->_maxPartitionBytes * 3 / 4;
+ while (repo->_running) {
+ std::this_thread::sleep_for(
+ std::chrono::milliseconds(repo->_purgePeriod));
+ uint64_t curTime = getTimeMillis();
+ uint64_t size = repo->repoSize();
+ if (size >= purgeThreshold) {
+ std::vector<std::string> purgeList;
+ leveldb::Iterator* it = repo->_db->NewIterator(
+ leveldb::ReadOptions());
+ if (repo->_type == PROVENANCE)
+ {
+ for (it->SeekToFirst(); it->Valid();
it->Next()) {
+ ProvenanceEventRecord eventRead;
+ std::string key = it->key().ToString();
+ if (eventRead.DeSerialize((uint8_t *)
it->value().data(),
+ (int) it->value().size())) {
+ if ((curTime -
eventRead.getEventTime())
+ >
repo->_maxPartitionMillis)
+
purgeList.push_back(key);
+ } else {
+ repo->logger_->log_debug(
+ "NiFi %s retrieve event
%s fail",
+
RepositoryTypeStr[repo->_type],
+ key.c_str());
+ purgeList.push_back(key);
+ }
+ }
+ }
+ if (repo->_type == FLOWFILE)
+ {
+ for (it->SeekToFirst(); it->Valid();
it->Next()) {
+ FlowFileEventRecord eventRead;
+ std::string key = it->key().ToString();
+ if (eventRead.DeSerialize((uint8_t *)
it->value().data(),
+ (int) it->value().size())) {
+ if ((curTime -
eventRead.getEventTime())
+ >
repo->_maxPartitionMillis)
+
purgeList.push_back(key);
+ } else {
+ repo->logger_->log_debug(
+ "NiFi %s retrieve event
%s fail",
+
RepositoryTypeStr[repo->_type],
+ key.c_str());
+ purgeList.push_back(key);
+ }
+ }
+ }
+ delete it;
+ std::vector<std::string>::iterator itPurge;
+ for (itPurge = purgeList.begin(); itPurge !=
purgeList.end();
--- End diff --
will do.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
