Github user zuyu commented on a diff in the pull request:
https://github.com/apache/incubator-quickstep/pull/14#discussion_r66716082
--- Diff: query_execution/Foreman.cpp ---
@@ -22,355 +22,189 @@
#include <utility>
#include <vector>
-#include "catalog/CatalogDatabase.hpp"
-#include "catalog/CatalogRelation.hpp"
-#include "catalog/CatalogTypedefs.hpp"
-#include "catalog/PartitionScheme.hpp"
-#include "query_execution/QueryContext.hpp"
-#include "query_execution/QueryExecutionMessages.pb.h"
+#include "query_execution/AdmitRequestMessage.hpp"
#include "query_execution/QueryExecutionTypedefs.hpp"
#include "query_execution/QueryExecutionUtil.hpp"
#include "query_execution/WorkerDirectory.hpp"
#include "query_execution/WorkerMessage.hpp"
-#include "relational_operators/RebuildWorkOrder.hpp"
-#include "relational_operators/RelationalOperator.hpp"
-#include "relational_operators/WorkOrder.hpp"
-#include "storage/InsertDestination.hpp"
-#include "storage/StorageBlock.hpp"
-#include "storage/StorageBlockInfo.hpp"
#include "threading/ThreadUtil.hpp"
+#include "utility/EqualsAnyConstant.hpp"
#include "utility/Macros.hpp"
+#include "gflags/gflags.h"
#include "glog/logging.h"
#include "tmb/message_bus.h"
#include "tmb/tagged_message.h"
using std::move;
-using std::pair;
using std::size_t;
+using std::unique_ptr;
using std::vector;
namespace quickstep {
-void Foreman::initialize() {
+DEFINE_uint64(min_load_per_worker, 2, "The minimum load defined as the
number "
--- End diff --
If you are curious about the distributed query execution, check out this
branch:
https://github.com/apache/incubator-quickstep/tree/distributed-exe-gen-test/query_execution.
In short, after moving the `gflag` variable to `ForemanLite`,
`ForemanDistributed`, a derived class of `ForemanLite`, could use this
variable. We use the term `Worker`, which consists of `Shiftboss`,
`StorageManager`, and a thread pool, running as an independent `OS` process
that executes `WorkOrder`s from `ForemanDistributed`. `Shiftboss` is a final
derived class of `Thread`.
The load of `Worker` is controlled by `ForemanDistributed`, so it is
perfect to set in `ForemanLite`.
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