tyler.durden
/
icinga2
mirror of https://github.com/Icinga/icinga2.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #7936 from Icinga/bugfix/config-sync-failed-reload-7742 

ApiListener::ConfigUpdateHandler(): make the whole process mutually exclusive
This commit is contained in:
Alexander Aleksandrovič Klimov 2020-04-07 15:55:14 +02:00 committed by GitHub
parent 4464e4990e 38f3108c1a
commit 2e22ceb23e
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 17 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
lib/remote/apilistener-filesync.cpp
View File

@ -10,9 +10,11 @@
#include "base/convert.hpp"
#include "base/application.hpp"
#include "base/exception.hpp"
#include "base/shared.hpp"
#include "base/utility.hpp"
#include <fstream>
#include <iomanip>
#include <thread>
using namespace icinga;
@ -310,10 +312,16 @@ Value ApiListener::ConfigUpdateHandler(const MessageOrigin::Ptr& origin, const D
return Empty;
}
std::thread([origin, params]() { HandleConfigUpdate(origin, params); }).detach();
return Empty;
}
void ApiListener::HandleConfigUpdate(const MessageOrigin::Ptr& origin, const Dictionary::Ptr& params)
{
/* Only one transaction is allowed, concurrent message handlers need to wait.
* This affects two parent endpoints sending the config in the same moment.
*/
boost::mutex::scoped_lock lock(m_ConfigSyncStageLock);
auto lock (Shared<boost::mutex::scoped_lock>::Make(m_ConfigSyncStageLock));
String apiZonesStageDir = GetApiZonesStageDir();
String fromEndpointName = origin->FromClient->GetEndpoint()->GetName();
@ -521,14 +529,12 @@ Value ApiListener::ConfigUpdateHandler(const MessageOrigin::Ptr& origin, const D
Log(LogInformation, "ApiListener")
<< "Received configuration updates (" << count << ") from endpoint '" << fromEndpointName
<< "' are different to production, triggering validation and reload.";
AsyncTryActivateZonesStage(relativePaths);
AsyncTryActivateZonesStage(relativePaths, lock);
} else {
Log(LogInformation, "ApiListener")
<< "Received configuration updates (" << count << ") from endpoint '" << fromEndpointName
<< "' are equal to production, skipping validation and reload.";
}
return Empty;
}
/**
@ -612,7 +618,7 @@ void ApiListener::TryActivateZonesStageCallback(const ProcessResult& pr,
*
* @param relativePaths Required for later file operations in the callback. Provides the zone name plus path in a list.
*/
void ApiListener::AsyncTryActivateZonesStage(const std::vector<String>& relativePaths)
void ApiListener::AsyncTryActivateZonesStage(const std::vector<String>& relativePaths, const Shared<boost::mutex::scoped_lock>::Ptr& lock)
{
VERIFY(Application::GetArgC() >= 1);
@ -638,7 +644,10 @@ void ApiListener::AsyncTryActivateZonesStage(const std::vector<String>& relative
Process::Ptr process = new Process(Process::PrepareCommand(args));
process->SetTimeout(Application::GetReloadTimeout());
process->Run(std::bind(&TryActivateZonesStageCallback, _1, relativePaths));
process->Run([relativePaths, lock](const ProcessResult& pr) {
TryActivateZonesStageCallback(pr, relativePaths);
});
}
/**

3
lib/remote/apilistener.hpp
View File

@ -85,6 +85,7 @@ public:
/* filesync */
static Value ConfigUpdateHandler(const MessageOrigin::Ptr& origin, const Dictionary::Ptr& params);
static void HandleConfigUpdate(const MessageOrigin::Ptr& origin, const Dictionary::Ptr& params);
/* configsync */
static void ConfigUpdateObjectHandler(const ConfigObject::Ptr& object, const Value& cookie);
@ -199,7 +200,7 @@ private:
static void TryActivateZonesStageCallback(const ProcessResult& pr,
const std::vector<String>& relativePaths);
static void AsyncTryActivateZonesStage(const std::vector<String>& relativePaths);
static void AsyncTryActivateZonesStage(const std::vector<String>& relativePaths, const Shared<boost::mutex::scoped_lock>::Ptr& lock);
static String GetChecksum(const String& content);
static bool CheckConfigChange(const ConfigDirInformation& oldConfig, const ConfigDirInformation& newConfig);