src/nominatim_db/clicmd/admin.py

   1 # SPDX-License-Identifier: GPL-3.0-or-later
   2 #
   3 # This file is part of Nominatim. (https://nominatim.org)
   4 #
   5 # Copyright (C) 2024 by the Nominatim developer community.
   6 # For a full list of authors see the git log.
   7 """
   8 Implementation of the 'admin' subcommand.
   9 """
  10 import logging
  11 import argparse
  12 import random
  13
  14 from nominatim_core.errors import UsageError
  15 from nominatim_core.db.connection import connect
  16 from .args import NominatimArgs
  17
  18 # Do not repeat documentation of subcommand classes.
  19 # pylint: disable=C0111
  20 # Using non-top-level imports to avoid eventually unused imports.
  21 # pylint: disable=E0012,C0415
  22
  23 LOG = logging.getLogger()
  24
  25
  26 class AdminFuncs:
  27     """\
  28     Analyse and maintain the database.
  29     """
  30
  31     def add_args(self, parser: argparse.ArgumentParser) -> None:
  32         group = parser.add_argument_group('Admin tasks')
  33         objs = group.add_mutually_exclusive_group(required=True)
  34         objs.add_argument('--warm', action='store_true',
  35                           help='Warm database caches for search and reverse queries')
  36         objs.add_argument('--check-database', action='store_true',
  37                           help='Check that the database is complete and operational')
  38         objs.add_argument('--migrate', action='store_true',
  39                           help='Migrate the database to a new software version')
  40         objs.add_argument('--analyse-indexing', action='store_true',
  41                           help='Print performance analysis of the indexing process')
  42         objs.add_argument('--collect-os-info', action="store_true",
  43                           help="Generate a report about the host system information")
  44         objs.add_argument('--clean-deleted', action='store', metavar='AGE',
  45                           help='Clean up deleted relations')
  46         group = parser.add_argument_group('Arguments for cache warming')
  47         group.add_argument('--search-only', action='store_const', dest='target',
  48                            const='search',
  49                            help="Only pre-warm tables for search queries")
  50         group.add_argument('--reverse-only', action='store_const', dest='target',
  51                            const='reverse',
  52                            help="Only pre-warm tables for reverse queries")
  53         group = parser.add_argument_group('Arguments for index anaysis')
  54         mgroup = group.add_mutually_exclusive_group()
  55         mgroup.add_argument('--osm-id', type=str,
  56                             help='Analyse indexing of the given OSM object')
  57         mgroup.add_argument('--place-id', type=int,
  58                             help='Analyse indexing of the given Nominatim object')
  59
  60
  61     def run(self, args: NominatimArgs) -> int:
  62         # pylint: disable=too-many-return-statements
  63         if args.warm:
  64             return self._warm(args)
  65
  66         if args.check_database:
  67             LOG.warning('Checking database')
  68             from ..tools import check_database
  69             return check_database.check_database(args.config)
  70
  71         if args.analyse_indexing:
  72             LOG.warning('Analysing performance of indexing function')
  73             from ..tools import admin
  74             admin.analyse_indexing(args.config, osm_id=args.osm_id, place_id=args.place_id)
  75             return 0
  76
  77         if args.migrate:
  78             LOG.warning('Checking for necessary database migrations')
  79             from ..tools import migration
  80             return migration.migrate(args.config, args)
  81
  82         if args.collect_os_info:
  83             LOG.warning("Reporting System Information")
  84             from ..tools import collect_os_info
  85             collect_os_info.report_system_information(args.config)
  86             return 0
  87
  88         if args.clean_deleted:
  89             LOG.warning('Cleaning up deleted relations')
  90             from ..tools import admin
  91             admin.clean_deleted_relations(args.config, age=args.clean_deleted)
  92             return 0
  93
  94         return 1
  95
  96
  97     def _warm(self, args: NominatimArgs) -> int:
  98         try:
  99             import nominatim_api as napi
 100         except ModuleNotFoundError as exp:
 101             raise UsageError("Warming requires nominatim API. "
 102                              "Install with 'pip install nominatim-api'.") from exp
 103         LOG.warning('Warming database caches')
 104
 105         api = napi.NominatimAPI(args.project_dir)
 106
 107         try:
 108             if args.target != 'search':
 109                 for _ in range(1000):
 110                     api.reverse((random.uniform(-90, 90), random.uniform(-180, 180)),
 111                                 address_details=True)
 112
 113             if args.target != 'reverse':
 114                 from ..tokenizer import factory as tokenizer_factory
 115
 116                 tokenizer = tokenizer_factory.get_tokenizer_for_db(args.config)
 117                 with connect(args.config.get_libpq_dsn()) as conn:
 118                     if conn.table_exists('search_name'):
 119                         words = tokenizer.most_frequent_words(conn, 1000)
 120                     else:
 121                         words = []
 122
 123                 for word in words:
 124                     api.search(word)
 125         finally:
 126             api.close()
 127
 128         return 0