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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/searchcore/fdispatch/program/fdispatch.h>
#include <vespa/searchcore/fdispatch/common/perftask.h>
#include <vespa/vespalib/net/state_server.h>
#include <vespa/vespalib/net/simple_health_producer.h>
#include <vespa/vespalib/net/simple_metrics_producer.h>
#include <vespa/searchlib/expression/forcelink.hpp>
#include <vespa/searchlib/aggregation/forcelink.hpp>
#include <vespa/vespalib/util/signalhandler.h>
#include <vespa/fastos/app.h>
#include <thread>
#include <getopt.h>
#include <vespa/log/log.h>
LOG_SETUP("fdispatch");
using fdispatch::Fdispatch;
using vespa::config::search::core::FdispatchrcConfig;
using namespace std::literals;
extern char FastS_VersionTag[];
class FastS_FDispatchApp : public FastOS_Application
{
private:
FastS_FDispatchApp(const FastS_FDispatchApp &);
FastS_FDispatchApp& operator=(const FastS_FDispatchApp &);
protected:
vespalib::string _configId;
bool CheckShutdownFlags () const {
return (vespalib::SignalHandler::INT.check() || vespalib::SignalHandler::TERM.check());
}
void Usage();
bool GetOptions(int *exitCode);
public:
int Main() override;
FastS_FDispatchApp();
~FastS_FDispatchApp();
};
FastS_FDispatchApp::FastS_FDispatchApp()
{
}
/**
* Main program for a dispatcher node.
*/
int
FastS_FDispatchApp::Main()
{
int exitCode;
forcelink_searchlib_expression();
forcelink_searchlib_aggregation();
if (!GetOptions(&exitCode)) {
EV_STOPPING("fdispatch", (exitCode == 0) ? "clean shutdown" : "error");
return exitCode;
}
exitCode = 0;
EV_STARTED("fdispatch");
vespalib::SignalHandler::INT.hook();
vespalib::SignalHandler::TERM.hook();
vespalib::SignalHandler::PIPE.ignore();
std::unique_ptr<Fdispatch> myfdispatch;
try {
myfdispatch.reset(new Fdispatch(_configId));
} catch (std::exception &ex) {
LOG(error, "getting config: %s", (const char *) ex.what());
exitCode = 1;
EV_STOPPING("fdispatch", "error getting config");
return exitCode;
}
try {
if (!myfdispatch->Init()) {
throw std::runtime_error("myfdispatch->Init(" + _configId + ") failed");
}
if (myfdispatch->Failed()) {
throw std::runtime_error("myfdispatch->Failed()");
}
{ // main loop scope
vespalib::SimpleHealthProducer health;
vespalib::SimpleMetricsProducer metrics;
vespalib::StateServer stateServer(myfdispatch->getHealthPort(), health, metrics, myfdispatch->getComponentConfig());
FastS_PerfTask perfTask(*myfdispatch, 300.0);
while (!CheckShutdownFlags()) {
if (myfdispatch->Failed()) {
throw std::runtime_error("myfdispatch->Failed()");
}
std::this_thread::sleep_for(100ms);
if (!myfdispatch->CheckTempFail())
break;
}
} // main loop scope
if (myfdispatch->Failed()) {
throw std::runtime_error("myfdispatch->Failed()");
}
} catch (std::runtime_error &e) {
LOG(warning, "got std::runtime_error during init: %s", e.what());
exitCode = 1;
} catch (std::exception &e) {
LOG(error, "got exception during init: %s", e.what());
exitCode = 1;
} catch (...) {
LOG(error, "got exception during init");
exitCode = 1;
}
LOG(debug, "Deleting fdispatch");
myfdispatch.reset();
LOG(debug, "COMPLETION: Exiting");
EV_STOPPING("fdispatch", (exitCode == 0) ? "clean shutdown" : "error");
return exitCode;
}
bool
FastS_FDispatchApp::GetOptions(int *exitCode)
{
int errflg = 0;
int c;
const char *optArgument;
int longopt_index; /* Shows which long option was used */
static struct option longopts[] = {
{ "config-id", 1, NULL, 0 },
{ NULL, 0, NULL, 0 }
};
enum longopts_enum {
LONGOPT_CONFIGID
};
int optIndex = 1; // Start with argument 1
while ((c = GetOptLong("c:", optArgument, optIndex, longopts, &longopt_index)) != -1) {
switch (c) {
case 0:
switch (longopt_index) {
case LONGOPT_CONFIGID:
break;
default:
if (optArgument != NULL) {
LOG(info, "longopt %s with arg %s", longopts[longopt_index].name, optArgument);
} else {
LOG(info, "longopt %s", longopts[longopt_index].name);
}
break;
}
break;
case 'c':
_configId = optArgument;
break;
case '?':
default:
errflg++;
}
}
if (errflg) {
Usage();
*exitCode = 1;
return false;
}
return true;
}
void
FastS_FDispatchApp::Usage()
{
printf("FAST Search - fdispatch %s\n", FastS_VersionTag);
printf("\n"
"USAGE:\n"
"\n"
"fdispatch [-C fsroot] [-c rcFile] [-P preHttPort] [-V] [-w FFF]\n"
"\n"
" -C fsroot Fast Search's root directory\n"
" (default /usr/fastsearch/fastserver4)\n"
" -c rcFile fdispatchrc file (default FASTSEARCHROOT/etc/fdispatchrc)\n"
" -P preHttPort pre-allocated socket number for http service\n"
" -V show version and exit\n"
" -w FFF hex value (max 32 bit) for the Verbose mask\n"
"\n");
}
FastS_FDispatchApp::~FastS_FDispatchApp()
{
}
int
main(int argc, char **argv)
{
FastS_FDispatchApp app;
int retval;
// Maybe this should be handeled by FastOS
setlocale(LC_ALL, "C");
retval = app.Entry(argc, argv);
return retval;
}
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