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// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "model-owner.h"
#include <vespa/vespalib/util/exceptions.h>
#include <vespa/config/common/exceptions.h>
#include <string>
#include <chrono>
#include <vespa/log/log.h>
LOG_SETUP(".sentinel.model-owner");
using namespace std::chrono_literals;
namespace config::sentinel {
std::optional<ModelConfig> ModelOwner::getModelConfig() {
checkForUpdates();
if (_modelConfig) {
return ModelConfig(*_modelConfig);
} else {
return {};
}
}
ModelOwner::ModelOwner(const std::string &configId)
: _configId(configId)
{}
ModelOwner::~ModelOwner() = default;
void
ModelOwner::start(std::chrono::milliseconds timeout) {
try {
_modelHandle =_subscriber.subscribe<ModelConfig>(_configId, timeout);
} catch (ConfigTimeoutException & ex) {
LOG(warning, "Timeout getting model config: %s [skipping connectivity checks]", ex.getMessage().c_str());
} catch (InvalidConfigException& ex) {
LOG(warning, "Invalid model config: %s [skipping connectivity checks]", ex.getMessage().c_str());
} catch (ConfigRuntimeException& ex) {
LOG(warning, "Runtime exception getting model config: %s [skipping connectivity checks]", ex.getMessage().c_str());
}
}
void
ModelOwner::checkForUpdates() {
if (! _modelHandle) {
start(5ms);
}
if (_modelHandle && _subscriber.nextGenerationNow()) {
if (auto newModel = _modelHandle->getConfig()) {
LOG(config, "Sentinel got model info [version %s] for %zd hosts [config generation %" PRId64 "]",
newModel->vespaVersion.c_str(), newModel->hosts.size(), _subscriber.getGeneration());
_modelConfig = std::move(newModel);
}
}
}
}
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