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FOGL-6891: Handle storage service restart #893

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FOGL-6891: Handle storage service restart #893

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ddb7974
FOGL-6891: Initial version
AmandeepArora Sep 21, 2022
b4f4365
Further changes
AmandeepArora Sep 23, 2022
ae8fcec
FOGL-6891: Further progress
AmandeepArora Sep 29, 2022
fc0baea
Storage service can restart multiple times
AmandeepArora Sep 30, 2022
2b6ea0c
Restart storage service quickly, if it is unresponsive
AmandeepArora Oct 3, 2022
5a2f035
South service can resume storage operations across storage service re…
AmandeepArora Oct 7, 2022
8d6be4c
Further changes
AmandeepArora Oct 10, 2022
8df4dd6
Notification service working fine across storage service restart
AmandeepArora Nov 3, 2022
d6a2626
Code to help debugging
AmandeepArora Dec 2, 2022
6e51806
Merge remote-tracking branch 'origin/develop' into FOGL-6891
AmandeepArora Dec 2, 2022
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4 changes: 4 additions & 0 deletions C/common/include/storage_client.h
100644 → 100755
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,7 @@ class StorageClient {
public:
StorageClient(HttpClient *client);
StorageClient(const std::string& hostname, const unsigned short port);
StorageClient(const std::string& hostname, const unsigned short port, std::map<std::thread::id, std::atomic<int>>*);
~StorageClient();
ResultSet *queryTable(const std::string& schema, const std::string& tablename, const Query& query);
ResultSet *queryTable(const std::string& tablename, const Query& query);
Expand Down Expand Up @@ -78,6 +79,8 @@ class StorageClient {

void registerManagement(ManagementClient *mgmnt) { m_management = mgmnt; };
bool createSchema(const std::string&);
std::map<std::thread::id, std::atomic<int>>* getSeqNumMap() { return &m_seqnum_map; }
std::ostringstream& getUrlBase() { return m_urlbase; }

private:
void handleUnexpectedResponse(const char *operation,
Expand All @@ -91,6 +94,7 @@ class StorageClient {
HttpClient *getHttpClient(void);
bool openStream();
bool streamReadings(const std::vector<Reading *> & readings);
void handle_storage_service_restart();

std::ostringstream m_urlbase;
std::string m_host;
Expand Down
2 changes: 1 addition & 1 deletion C/common/logger.cpp
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Expand Up @@ -19,7 +19,7 @@
using namespace std;

// uncomment line below to get uSec level timestamps
// #define ADD_USEC_TS
#define ADD_USEC_TS
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Probably best not to checkin with this uncommented


inline long getCurrTimeUsec()
{
Expand Down
10 changes: 8 additions & 2 deletions C/common/management_client.cpp
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Expand Up @@ -74,12 +74,15 @@ HttpClient *ManagementClient::getHttpClient() {

std::thread::id thread_id = std::this_thread::get_id();

// m_logger->info("ManagementClient: Checking for HttpClient object: m_urlbase=%s", m_urlbase.str().c_str());

m_mtx_client_map.lock();
item = m_client_map.find(thread_id);

if (item == m_client_map.end() ) {

// Adding a new HttpClient
m_logger->info("ManagementClient: Instantiating a new HttpClient object: m_urlbase=%s", m_urlbase.str().c_str());
client = new HttpClient(m_urlbase.str());
m_client_map[thread_id] = client;
}
Expand All @@ -106,6 +109,8 @@ string payload;
try {
service.asJSON(payload);

m_logger->info("ManagementClient::registerService: POST to /fledge/service: payload=%s", payload.c_str());

auto res = this->getHttpClient()->request("POST", "/fledge/service", payload);
Document doc;
string response = res->content.string();
Expand Down Expand Up @@ -856,7 +861,7 @@ std::vector<AssetTrackingTuple*>& ManagementClient::getAssetTrackingTuples(const
return (*vec);
}
} catch (const SimpleWeb::system_error &e) {
m_logger->error("Fetch/parse of asset tracking tuples for service %s failed: %s.", serviceName.c_str(), e.what());
m_logger->error("%s: Fetch/parse of asset tracking tuples for service %s failed: %s.", __FUNCTION__, serviceName.c_str(), e.what());
//throw;
}
catch (...) {
Expand Down Expand Up @@ -1485,7 +1490,8 @@ AssetTrackingTuple* ManagementClient::getAssetTrackingTuple(const std::string& s
return tuple;
}
} catch (const SimpleWeb::system_error &e) {
m_logger->error("Fetch/parse of asset tracking tuples for service %s failed: %s.",
m_logger->error("%s: Fetch/parse of asset tracking tuples for service %s failed: %s.",
__FUNCTION__,
serviceName.c_str(),
e.what());
} catch (...) {
Expand Down
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