Merge pull request #2476 from lonvia/harmonize-configuration-file-settings

[nominatim.git] / nominatim / clicmd / index.py

diff --git a/nominatim/clicmd/index.py b/nominatim/clicmd/index.py
index 96a69396e42027afcc54be56793c6a3aaf7b2725..c38dfb1c6114090ed9310d8d6a3d138179396c3b 100644 (file)
--- a/nominatim/clicmd/index.py
+++ b/nominatim/clicmd/index.py
@@ -1,28 +1,25 @@
 """
 Implementation of the 'index' subcommand.
 """
-import os
+import psutil
 
-from ..db import status
-from ..db.connection import connect
+from nominatim.db import status
+from nominatim.db.connection import connect
 
 # Do not repeat documentation of subcommand classes.
 # pylint: disable=C0111
 # Using non-top-level imports to avoid eventually unused imports.
 # pylint: disable=E0012,C0415
 
-def _num_system_cpus():
-    try:
-        cpus = len(os.sched_getaffinity(0))
-    except NotImplementedError:
-        cpus = None
-
-    return cpus or os.cpu_count()
-
 
 class UpdateIndex:
     """\
     Reindex all new and modified data.
+
+    Indexing is the process of computing the address and search terms for
+    the places in the database. Every time data is added or changed, indexing
+    needs to be run. Imports and replication updates automatically take care
+    of indexing. For other cases, this function allows to run indexing manually.
     """
 
     @staticmethod
@@ -40,9 +37,12 @@ class UpdateIndex:
     @staticmethod
     def run(args):
         from ..indexer.indexer import Indexer
+        from ..tokenizer import factory as tokenizer_factory
+
+        tokenizer = tokenizer_factory.get_tokenizer_for_db(args.config)
 
-        indexer = Indexer(args.config.get_libpq_dsn(),
-                          args.threads or _num_system_cpus() or 1)
+        indexer = Indexer(args.config.get_libpq_dsn(), tokenizer,
+                          args.threads or psutil.cpu_count() or 1)
 
         if not args.no_boundaries:
             indexer.index_boundaries(args.minrank, args.maxrank)