run final index creation in parallel

[nominatim.git] / nominatim / tools / database_import.py

diff --git a/nominatim/tools/database_import.py b/nominatim/tools/database_import.py
index eda010138d691038e1fcc325aebb9f4f643e1cdd..f6ebe90d0983588ccc101988f5085d6692f405a0 100644 (file)
--- a/nominatim/tools/database_import.py
+++ b/nominatim/tools/database_import.py
@@ -82,7 +82,7 @@ def setup_database_skeleton(dsn: str, rouser: Optional[str] = None) -> None:
                          POSTGIS_REQUIRED_VERSION)
 
 
-def import_osm_data(osm_files: Union[str, Sequence[str]],
+def import_osm_data(osm_files: Union[Path, Sequence[Path]],
                     options: MutableMapping[str, Any],
                     drop: bool = False, ignore_errors: bool = False) -> None:
     """ Import the given OSM files. 'options' contains the list of
@@ -95,7 +95,7 @@ def import_osm_data(osm_files: Union[str, Sequence[str]],
     if not options['flatnode_file'] and options['osm2pgsql_cache'] == 0:
         # Make some educated guesses about cache size based on the size
         # of the import file and the available memory.
-        mem = psutil.virtual_memory() # type: ignore[no-untyped-call]
+        mem = psutil.virtual_memory()
         fsize = 0
         if isinstance(osm_files, list):
             for fname in osm_files:
@@ -225,7 +225,8 @@ def load_data(dsn: str, threads: int) -> None:
             cur.execute('ANALYSE')
 
 
-def create_search_indices(conn: Connection, config: Configuration, drop: bool = False) -> None:
+def create_search_indices(conn: Connection, config: Configuration,
+                          drop: bool = False, threads: int = 1) -> None:
     """ Create tables that have explicit partitioning.
     """
 
@@ -243,4 +244,5 @@ def create_search_indices(conn: Connection, config: Configuration, drop: bool =
 
     sql = SQLPreprocessor(conn, config)
 
-    sql.run_sql_file(conn, 'indices.sql', drop=drop)
+    sql.run_parallel_sql_file(config.get_libpq_dsn(),
+                              'indices.sql', min(8, threads), drop=drop)