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// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "config-owner.h"
#include <vespa/vespalib/util/exceptions.h>
#include <vespa/config/common/exceptions.h>
#include <string>
#include <vespa/log/log.h>
LOG_SETUP(".config-owner");
namespace config::sentinel {
ConfigOwner::ConfigOwner() : _subscriber() {}
ConfigOwner::~ConfigOwner() = default;
void
ConfigOwner::subscribe(const std::string & configId, std::chrono::milliseconds timeout) {
_sentinelHandle = _subscriber.subscribe<SentinelConfig>(configId, timeout);
}
void
ConfigOwner::doConfigure()
{
_currConfig = _sentinelHandle->getConfig();
LOG_ASSERT(_currConfig);
_currGeneration = _subscriber.getGeneration();
const SentinelConfig& config(*_currConfig);
const auto & app = config.application;
LOG(config, "Sentinel got %zd service elements [tenant(%s), application(%s), instance(%s)] for config generation %" PRId64,
config.service.size(), app.tenant.c_str(), app.name.c_str(), app.instance.c_str(), _currGeneration);
}
// Return true if there was a config generation change
bool
ConfigOwner::checkForConfigUpdate() {
if (_subscriber.nextGenerationNow()) {
doConfigure();
return true;
}
return false;
}
std::unique_ptr<ModelConfig>
ConfigOwner::fetchModelConfig(std::chrono::milliseconds timeout)
{
std::unique_ptr<ModelConfig> modelConfig;
ConfigSubscriber tempSubscriber;
try {
ConfigHandle<ModelConfig>::UP modelHandle =
tempSubscriber.subscribe<ModelConfig>("admin/model", timeout);
if (tempSubscriber.nextGenerationNow()) {
modelConfig = modelHandle->getConfig();
LOG(config, "Sentinel got model info [version %s] for %zd hosts [config generation %" PRId64 "]",
modelConfig->vespaVersion.c_str(), modelConfig->hosts.size(),
tempSubscriber.getGeneration());
}
} 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());
}
return modelConfig;
}
}
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