foreign_storage::ForeignTableRefreshScheduler Class Reference

#include <ForeignTableRefresh.h>

Static Public Member Functions
static void	start (std::atomic< bool > &is_program_running)
static void	stop ()
static void	setWaitDuration (int64_t duration_in_seconds)
static bool	isRunning ()
static bool	hasRefreshedTable ()
static void	resetHasRefreshedTable ()

Static Private Attributes
static bool	is_scheduler_running_ {false}
static std::chrono::seconds	thread_wait_duration_ {60}
static std::thread	scheduler_thread_
static std::atomic< bool >	has_refreshed_table_ {false}

Detailed Description

Definition at line 28 of file ForeignTableRefresh.h.

Member Function Documentation

bool foreign_storage::ForeignTableRefreshScheduler::hasRefreshedTable ( )

static

Definition at line 92 of file ForeignTableRefresh.cpp.

References has_refreshed_table_.

                                                     {
  return has_refreshed_table_;
}

bool foreign_storage::ForeignTableRefreshScheduler::isRunning ( )

static

Definition at line 88 of file ForeignTableRefresh.cpp.

References is_scheduler_running_.

                                             {
  return is_scheduler_running_;
}

void foreign_storage::ForeignTableRefreshScheduler::resetHasRefreshedTable ( )

static

Definition at line 96 of file ForeignTableRefresh.cpp.

References has_refreshed_table_.

                                                          {
  has_refreshed_table_ = false;
}

void foreign_storage::ForeignTableRefreshScheduler::setWaitDuration ( int64_t  duration_in_seconds )

static

Definition at line 84 of file ForeignTableRefresh.cpp.

References thread_wait_duration_.

                                                                              {
  thread_wait_duration_ = std::chrono::seconds{duration_in_seconds};
}

void foreign_storage::ForeignTableRefreshScheduler::start ( std::atomic< bool > &  is_program_running )

static

Definition at line 53 of file ForeignTableRefresh.cpp.

References logger::ERROR, has_refreshed_table_, Catalog_Namespace::SysCatalog::instance(), is_scheduler_running_, LOG, foreign_storage::refresh_foreign_table(), scheduler_thread_, run_benchmark_import::tables, and thread_wait_duration_.

Referenced by startMapdServer().

                                                                            {
  if (!is_scheduler_running_) {
    scheduler_thread_ = std::thread([&is_program_running]() {
      while (is_program_running) {
        auto& sys_catalog = Catalog_Namespace::SysCatalog::instance();
        for (const auto& catalog : sys_catalog.getCatalogsForAllDbs()) {
          auto tables = catalog->getAllForeignTablesForRefresh();
          for (auto table : tables) {
            try {
              refresh_foreign_table(*catalog, table->tableName, false);
            } catch (std::runtime_error& e) {
              LOG(ERROR) << "Scheduled refresh for table \"" << table->tableName
                         << "\" resulted in an error. " << e.what();
            }
            has_refreshed_table_ = true;
          }
        }
        std::this_thread::sleep_for(thread_wait_duration_);
      }
    });
    is_scheduler_running_ = true;
  }
}

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void foreign_storage::ForeignTableRefreshScheduler::stop ( )

static

Definition at line 77 of file ForeignTableRefresh.cpp.

References is_scheduler_running_, and scheduler_thread_.

Referenced by startMapdServer().

                                        {
  if (is_scheduler_running_) {
    scheduler_thread_.join();
    is_scheduler_running_ = false;
  }
}

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Member Data Documentation

std::atomic< bool > foreign_storage::ForeignTableRefreshScheduler::has_refreshed_table_ {false}

staticprivate

Definition at line 43 of file ForeignTableRefresh.h.

Referenced by hasRefreshedTable(), resetHasRefreshedTable(), and start().

bool foreign_storage::ForeignTableRefreshScheduler::is_scheduler_running_ {false}

staticprivate

Definition at line 40 of file ForeignTableRefresh.h.

Referenced by isRunning(), start(), and stop().

std::thread foreign_storage::ForeignTableRefreshScheduler::scheduler_thread_

staticprivate

Definition at line 42 of file ForeignTableRefresh.h.

Referenced by start(), and stop().

std::chrono::seconds foreign_storage::ForeignTableRefreshScheduler::thread_wait_duration_ {60}

staticprivate

Definition at line 41 of file ForeignTableRefresh.h.

Referenced by setWaitDuration(), and start().

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The documentation for this class was generated from the following files:

• /home/jenkins-slave/workspace/core-os-doxygen/DataMgr/ForeignStorage/ForeignTableRefresh.h
• /home/jenkins-slave/workspace/core-os-doxygen/DataMgr/ForeignStorage/ForeignTableRefresh.cpp