nominatim/index.c

   1 /*
   2  * triggers indexing (reparenting etc.) through setting resetting indexed_status: update placex/osmline set indexed_status = 0 where indexed_status > 0
   3  * triggers placex_update and osmline_update
   4 */
   5
   6 #include <stdio.h>
   7 #include <unistd.h>
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include <assert.h>
  11 #include <pthread.h>
  12 #include <time.h>
  13 #include <stdint.h>
  14
  15 #include <libpq-fe.h>
  16
  17 #include "nominatim.h"
  18 #include "index.h"
  19 #include "export.h"
  20 #include "postgresql.h"
  21
  22 extern int verbose;
  23
  24 void run_indexing(int rank, int interpolation, PGconn *conn, int num_threads,
  25 struct index_thread_data * thread_data, const char *structuredoutputfile)
  26 {
  27     int tuples, count, sleepcount;
  28     pthread_mutex_t count_mutex = PTHREAD_MUTEX_INITIALIZER;
  29
  30     time_t rankStartTime;
  31     int rankTotalTuples;
  32     int rankCountTuples;
  33     float rankPerSecond;
  34
  35     PGresult * resSectors;
  36     PGresult * resPlaces;
  37     PGresult * resNULL;
  38
  39     int i;
  40     int iSector;
  41     int iResult;
  42
  43     const char *paramValues[2];
  44     int         paramLengths[2];
  45     int         paramFormats[2];
  46     uint32_t    paramRank;
  47     uint32_t    paramSector;
  48     uint32_t    sector;
  49
  50     xmlTextWriterPtr writer;
  51     pthread_mutex_t writer_mutex = PTHREAD_MUTEX_INITIALIZER;
  52
  53     // Create the output file
  54     writer = NULL;
  55     if (structuredoutputfile)
  56     {
  57         writer = nominatim_exportXMLStart(structuredoutputfile);
  58     }
  59
  60     if (interpolation)
  61     {
  62         fprintf(stderr, "Starting interpolation lines (location_property_osmline)\n");
  63     }
  64     else
  65     {
  66         fprintf(stderr, "Starting rank %d\n", rank);
  67     }
  68
  69     rankCountTuples = 0;
  70     rankPerSecond = 0;
  71
  72     paramRank = PGint32(rank);
  73     paramValues[0] = (char *)&paramRank;
  74     paramLengths[0] = sizeof(paramRank);
  75     paramFormats[0] = 1;
  76
  77     if (interpolation)
  78     {
  79         resSectors = PQexecPrepared(conn, "index_sectors_osmline", 0, NULL, 0, NULL, 1);
  80     }
  81     else
  82     {
  83         resSectors = PQexecPrepared(conn, "index_sectors", 1, paramValues, paramLengths, paramFormats, 1);
  84     }
  85     if (PQresultStatus(resSectors) != PGRES_TUPLES_OK)
  86     {
  87         fprintf(stderr, "index_sectors: SELECT failed: %s", PQerrorMessage(conn));
  88         PQclear(resSectors);
  89         exit(EXIT_FAILURE);
  90     }
  91     if (PQftype(resSectors, 0) != PG_OID_INT4)
  92     {
  93         fprintf(stderr, "Sector value has unexpected type\n");
  94         PQclear(resSectors);
  95         exit(EXIT_FAILURE);
  96     }
  97     if (PQftype(resSectors, 1) != PG_OID_INT8)
  98     {
  99         fprintf(stderr, "Sector value has unexpected type\n");
 100         PQclear(resSectors);
 101         exit(EXIT_FAILURE);
 102     }
 103
 104     rankTotalTuples = 0;
 105     for (iSector = 0; iSector < PQntuples(resSectors); iSector++)
 106     {
 107         rankTotalTuples += PGint64(*((uint64_t *)PQgetvalue(resSectors, iSector, 1)));
 108     }
 109
 110     rankStartTime = time(0);
 111     for (iSector = 0; iSector <= PQntuples(resSectors); iSector++)
 112     {
 113         if (iSector > 0)
 114         {
 115             resPlaces = PQgetResult(conn);
 116             if (PQresultStatus(resPlaces) != PGRES_TUPLES_OK)
 117             {
 118                 fprintf(stderr, "index_sector_places: SELECT failed: %s", PQerrorMessage(conn));
 119                 PQclear(resPlaces);
 120                 exit(EXIT_FAILURE);
 121             }
 122             if (PQftype(resPlaces, 0) != PG_OID_INT8)
 123             {
 124                 fprintf(stderr, "Place_id value has unexpected type\n");
 125                 PQclear(resPlaces);
 126                 exit(EXIT_FAILURE);
 127             }
 128             resNULL = PQgetResult(conn);
 129             if (resNULL != NULL)
 130             {
 131                 fprintf(stderr, "Unexpected non-null response\n");
 132                 exit(EXIT_FAILURE);
 133             }
 134         }
 135
 136         if (iSector < PQntuples(resSectors))
 137         {
 138             sector = PGint32(*((uint32_t *)PQgetvalue(resSectors, iSector, 0)));
 139 //                fprintf(stderr, "\n Starting sector %d size %ld\n", sector, PGint64(*((uint64_t *)PQgetvalue(resSectors, iSector, 1))));
 140
 141             // Get all the place_id's for this sector
 142             paramRank = PGint32(rank);
 143             paramSector = PGint32(sector);
 144             if (rankTotalTuples-rankCountTuples < num_threads*1000)
 145             {
 146                 // no sectors
 147                 if (interpolation)
 148                 {
 149                     iResult = PQsendQueryPrepared(conn, "index_nosector_places_osmline", 0, NULL, 0, NULL, 1);
 150                 }
 151                 else
 152                 {
 153                     paramValues[0] = (char *)&paramRank;
 154                     paramLengths[0] = sizeof(paramRank);
 155                     paramFormats[0] = 1;
 156                     iResult = PQsendQueryPrepared(conn, "index_nosector_places", 1, paramValues, paramLengths, paramFormats, 1);
 157                 }
 158             }
 159             else
 160             {
 161                 if (interpolation)
 162                 {
 163                     iResult = PQsendQueryPrepared(conn, "index_sector_places_osmline", 1, paramValues, paramLengths, paramFormats, 1);
 164                     paramValues[0] = (char *)&paramSector;
 165                     paramLengths[0] = sizeof(paramSector);
 166                     paramFormats[0] = 1;
 167                 }
 168                 else
 169                 {
 170                     paramValues[0] = (char *)&paramRank;
 171                     paramLengths[0] = sizeof(paramRank);
 172                     paramFormats[0] = 1;
 173                     paramValues[1] = (char *)&paramSector;
 174                     paramLengths[1] = sizeof(paramSector);
 175                     paramFormats[1] = 1;
 176                     iResult = PQsendQueryPrepared(conn, "index_sector_places", 2, paramValues, paramLengths, paramFormats, 1);
 177                 }
 178             }
 179             if (!iResult)
 180             {
 181                 fprintf(stderr, "index_sector_places: SELECT failed: %s", PQerrorMessage(conn));
 182                 PQclear(resPlaces);
 183                 exit(EXIT_FAILURE);
 184             }
 185         }
 186         if (iSector > 0)
 187         {
 188             count = 0;
 189             rankPerSecond = 0;
 190             tuples = PQntuples(resPlaces);
 191
 192             if (tuples > 0)
 193             {
 194                 // Spawn threads
 195                 for (i = 0; i < num_threads; i++)
 196                 {
 197                     thread_data[i].res = resPlaces;
 198                     thread_data[i].tuples = tuples;
 199                     thread_data[i].count = &count;
 200                     thread_data[i].count_mutex = &count_mutex;
 201                     thread_data[i].writer = writer;
 202                     thread_data[i].writer_mutex = &writer_mutex;
 203                     if (interpolation)
 204                     {
 205                         thread_data[i].table = 0;  // use interpolations table
 206                     }
 207                     else
 208                     {
 209                         thread_data[i].table = 1;  // use placex table
 210                     }
 211                     pthread_create(&thread_data[i].thread, NULL, &nominatim_indexThread, (void *)&thread_data[i]);
 212                 }
 213
 214                 // Monitor threads to give user feedback
 215                 sleepcount = 0;
 216                 while (count < tuples)
 217                 {
 218                     usleep(1000);
 219
 220                     // Aim for one update per second
 221                     if (sleepcount++ > 500)
 222                     {
 223                         rankPerSecond = ((float)rankCountTuples + (float)count) / MAX(difftime(time(0), rankStartTime),1);
 224                         if(interpolation)
 225                         {
 226                             fprintf(stderr, "  Done %i in %i @ %f per second - Interpolation lines ETA (seconds): %f\n", (rankCountTuples + count), (int)(difftime(time(0), rankStartTime)), rankPerSecond, ((float)(rankTotalTuples - (rankCountTuples + count)))/rankPerSecond);
 227                         }
 228                         else
 229                         {
 230                             fprintf(stderr, "  Done %i in %i @ %f per second - Rank %i ETA (seconds): %f\n", (rankCountTuples + count), (int)(difftime(time(0), rankStartTime)), rankPerSecond, rank, ((float)(rankTotalTuples - (rankCountTuples + count)))/rankPerSecond);
 231                         }
 232
 233                         sleepcount = 0;
 234                     }
 235                 }
 236
 237                 // Wait for everything to finish
 238                 for (i = 0; i < num_threads; i++)
 239                 {
 240                     pthread_join(thread_data[i].thread, NULL);
 241                 }
 242
 243                 rankCountTuples += tuples;
 244             }
 245
 246             // Finished sector
 247             rankPerSecond = (float)rankCountTuples / MAX(difftime(time(0), rankStartTime),1);
 248             fprintf(stderr, "  Done %i in %i @ %f per second - ETA (seconds): %f\n", rankCountTuples, (int)(difftime(time(0), rankStartTime)), rankPerSecond, ((float)(rankTotalTuples - rankCountTuples))/rankPerSecond);
 249
 250             PQclear(resPlaces);
 251         }
 252         if (rankTotalTuples-rankCountTuples < num_threads*20 && iSector < PQntuples(resSectors))
 253         {
 254             iSector = PQntuples(resSectors) - 1;
 255         }
 256     }
 257     // Finished rank
 258     fprintf(stderr, "\r  Done %i in %i @ %f per second - FINISHED\n\n", rankCountTuples, (int)(difftime(time(0), rankStartTime)), rankPerSecond);
 259
 260     PQclear(resSectors);
 261 }
 262
 263 void nominatim_index(int rank_min, int rank_max, int num_threads, const char *conninfo, const char *structuredoutputfile)
 264 {
 265     struct index_thread_data * thread_data;
 266
 267     PGconn *conn;
 268     PGresult * res;
 269
 270     int rank;
 271
 272     int i;
 273
 274     xmlTextWriterPtr writer;
 275     pthread_mutex_t writer_mutex = PTHREAD_MUTEX_INITIALIZER;
 276
 277     Oid pg_prepare_params[2];
 278
 279     conn = PQconnectdb(conninfo);
 280     if (PQstatus(conn) != CONNECTION_OK)
 281     {
 282         fprintf(stderr, "Connection to database failed: %s\n", PQerrorMessage(conn));
 283         exit(EXIT_FAILURE);
 284     }
 285
 286     pg_prepare_params[0] = PG_OID_INT4;
 287     res = PQprepare(conn, "index_sectors",
 288                     "select geometry_sector,count(*) from placex where rank_search = $1 and indexed_status > 0 group by geometry_sector order by geometry_sector",
 289                     1, pg_prepare_params);
 290     if (PQresultStatus(res) != PGRES_COMMAND_OK)
 291     {
 292         fprintf(stderr, "Failed preparing index_sectors: %s\n", PQerrorMessage(conn));
 293         exit(EXIT_FAILURE);
 294     }
 295     PQclear(res);
 296
 297     res = PQprepare(conn, "index_sectors_osmline",
 298                     "select geometry_sector,count(*) from location_property_osmline where indexed_status > 0 group by geometry_sector order by geometry_sector",
 299                     0, NULL);
 300     if (PQresultStatus(res) != PGRES_COMMAND_OK)
 301     {
 302         fprintf(stderr, "Failed preparing index_sectors: %s\n", PQerrorMessage(conn));
 303         exit(EXIT_FAILURE);
 304     }
 305     PQclear(res);
 306
 307     pg_prepare_params[0] = PG_OID_INT4;
 308     res = PQprepare(conn, "index_nosectors",
 309                     "select 0::integer,count(*) from placex where rank_search = $1 and indexed_status > 0",
 310                     1, pg_prepare_params);
 311     if (PQresultStatus(res) != PGRES_COMMAND_OK)
 312     {
 313         fprintf(stderr, "Failed preparing index_sectors: %s\n", PQerrorMessage(conn));
 314         exit(EXIT_FAILURE);
 315     }
 316     PQclear(res);
 317
 318     pg_prepare_params[0] = PG_OID_INT4;
 319     pg_prepare_params[1] = PG_OID_INT4;
 320     res = PQprepare(conn, "index_sector_places",
 321                     "select place_id from placex where rank_search = $1 and geometry_sector = $2 and indexed_status > 0",
 322                     2, pg_prepare_params);
 323     if (PQresultStatus(res) != PGRES_COMMAND_OK)
 324     {
 325         fprintf(stderr, "Failed preparing index_sector_places: %s\n", PQerrorMessage(conn));
 326         exit(EXIT_FAILURE);
 327     }
 328     PQclear(res);
 329
 330     pg_prepare_params[0] = PG_OID_INT4;
 331     res = PQprepare(conn, "index_nosector_places",
 332                     "select place_id from placex where rank_search = $1 and indexed_status > 0 order by geometry_sector",
 333                     1, pg_prepare_params);
 334     if (PQresultStatus(res) != PGRES_COMMAND_OK)
 335     {
 336         fprintf(stderr, "Failed preparing index_nosector_places: %s\n", PQerrorMessage(conn));
 337         exit(EXIT_FAILURE);
 338     }
 339     PQclear(res);
 340
 341     pg_prepare_params[0] = PG_OID_INT4;
 342     res = PQprepare(conn, "index_sector_places_osmline",
 343                     "select place_id from location_property_osmline where geometry_sector = $1 and indexed_status > 0",
 344                     1, pg_prepare_params);
 345     if (PQresultStatus(res) != PGRES_COMMAND_OK)
 346     {
 347         fprintf(stderr, "Failed preparing index_sector_places: %s\n", PQerrorMessage(conn));
 348         exit(EXIT_FAILURE);
 349     }
 350     PQclear(res);
 351
 352     res = PQprepare(conn, "index_nosector_places_osmline",
 353                     "select place_id from location_property_osmline where indexed_status > 0 order by geometry_sector",
 354                     0, NULL);
 355     if (PQresultStatus(res) != PGRES_COMMAND_OK)
 356     {
 357         fprintf(stderr, "Failed preparing index_nosector_places: %s\n", PQerrorMessage(conn));
 358         exit(EXIT_FAILURE);
 359     }
 360     PQclear(res);
 361
 362     // Build the data for each thread
 363     thread_data = (struct index_thread_data *)malloc(sizeof(struct index_thread_data)*num_threads);
 364     for (i = 0; i < num_threads; i++)
 365     {
 366         thread_data[i].conn = PQconnectdb(conninfo);
 367         if (PQstatus(thread_data[i].conn) != CONNECTION_OK)
 368         {
 369             fprintf(stderr, "Connection to database failed: %s\n", PQerrorMessage(thread_data[i].conn));
 370             exit(EXIT_FAILURE);
 371         }
 372
 373         pg_prepare_params[0] = PG_OID_INT8;
 374         res = PQprepare(thread_data[i].conn, "index_placex",
 375                         "update placex set indexed_status = 0 where place_id = $1",
 376                         1, pg_prepare_params);
 377         if (PQresultStatus(res) != PGRES_COMMAND_OK)
 378         {
 379             fprintf(stderr, "Failed preparing index_placex: %s\n", PQerrorMessage(conn));
 380             exit(EXIT_FAILURE);
 381         }
 382         PQclear(res);
 383
 384         pg_prepare_params[0] = PG_OID_INT8;
 385         res = PQprepare(thread_data[i].conn, "index_osmline",
 386                         "update location_property_osmline set indexed_status = 0 where place_id = $1",
 387                         1, pg_prepare_params);
 388         if (PQresultStatus(res) != PGRES_COMMAND_OK)
 389         {
 390             fprintf(stderr, "Failed preparing index_osmline: %s\n", PQerrorMessage(conn));
 391             exit(EXIT_FAILURE);
 392         }
 393         PQclear(res);
 394
 395         /*res = PQexec(thread_data[i].conn, "set enable_seqscan = false");
 396         if (PQresultStatus(res) != PGRES_COMMAND_OK)
 397         {
 398             fprintf(stderr, "Failed disabling sequential scan: %s\n", PQerrorMessage(conn));
 399             exit(EXIT_FAILURE);
 400         }
 401         PQclear(res);*/
 402
 403         nominatim_exportCreatePreparedQueries(thread_data[i].conn);
 404     }
 405
 406
 407     fprintf(stderr, "Starting indexing rank (%i to %i) using %i threads\n", rank_min, rank_max, num_threads);
 408
 409     for (rank = rank_min; rank <= rank_max; rank++)
 410     {
 411         // OSMLINE: do reindexing (=> reparenting) for interpolation lines at rank 30, but before all other objects of rank 30
 412         // reason: houses (rank 30) depend on the updated interpolation line, when reparenting (see placex_update in functions.sql)
 413         if (rank == 30)
 414         {
 415             run_indexing(rank, 1, conn, num_threads, thread_data, structuredoutputfile);
 416         }
 417         run_indexing(rank, 0, conn, num_threads, thread_data, structuredoutputfile);
 418     }
 419         // Close all connections
 420         for (i = 0; i < num_threads; i++)
 421         {
 422                 PQfinish(thread_data[i].conn);
 423         }
 424         PQfinish(conn);
 425 }
 426
 427 void *nominatim_indexThread(void * thread_data_in)
 428 {
 429     struct index_thread_data * thread_data = (struct index_thread_data * )thread_data_in;
 430     struct export_data  querySet;
 431
 432     PGresult   *res;
 433
 434     const char  *paramValues[1];
 435     int         paramLengths[1];
 436     int         paramFormats[1];
 437     uint64_t    paramPlaceID;
 438     uint64_t    place_id;
 439     time_t      updateStartTime;
 440     uint        table;
 441
 442     table = (uint)(thread_data->table);
 443
 444     while (1)
 445     {
 446         pthread_mutex_lock( thread_data->count_mutex );
 447         if (*(thread_data->count) >= thread_data->tuples)
 448         {
 449             pthread_mutex_unlock( thread_data->count_mutex );
 450             break;
 451         }
 452
 453         place_id = PGint64(*((uint64_t *)PQgetvalue(thread_data->res, *thread_data->count, 0)));
 454         (*thread_data->count)++;
 455
 456         pthread_mutex_unlock( thread_data->count_mutex );
 457
 458         if (verbose) fprintf(stderr, "  Processing place_id %ld\n", place_id);
 459
 460         updateStartTime = time(0);
 461         int done = 0;
 462
 463         if (thread_data->writer)
 464         {
 465              nominatim_exportPlaceQueries(place_id, thread_data->conn, &querySet);
 466         }
 467
 468         while(!done)
 469         {
 470             paramPlaceID = PGint64(place_id);
 471             paramValues[0] = (char *)&paramPlaceID;
 472             paramLengths[0] = sizeof(paramPlaceID);
 473             paramFormats[0] = 1;
 474             if (table == 1) // table=1 for placex
 475             {
 476                 res = PQexecPrepared(thread_data->conn, "index_placex", 1, paramValues, paramLengths, paramFormats, 1);
 477             }
 478             else // table=0 for osmline
 479             {
 480                 res = PQexecPrepared(thread_data->conn, "index_osmline", 1, paramValues, paramLengths, paramFormats, 1);
 481             }
 482             if (PQresultStatus(res) == PGRES_COMMAND_OK)
 483                 done = 1;
 484             else
 485             {
 486                 if (!strncmp(PQerrorMessage(thread_data->conn), "ERROR:  deadlock detected", 25))
 487                 {
 488                     if (table == 1)
 489                     {
 490                         fprintf(stderr, "index_placex: UPDATE failed - deadlock, retrying (%ld)\n", place_id);
 491                     }
 492                     else
 493                     {
 494                         fprintf(stderr, "index_osmline: UPDATE failed - deadlock, retrying (%ld)\n", place_id);
 495                     }
 496                     PQclear(res);
 497                     sleep(rand() % 10);
 498                 }
 499                 else
 500                 {
 501                     if (table == 1)
 502                     {
 503                         fprintf(stderr, "index_placex: UPDATE failed: %s", PQerrorMessage(thread_data->conn));
 504                     }
 505                     else
 506                     {
 507                         fprintf(stderr, "index_osmline: UPDATE failed: %s", PQerrorMessage(thread_data->conn));
 508                     }
 509                     PQclear(res);
 510                     exit(EXIT_FAILURE);
 511                 }
 512             }
 513         }
 514         PQclear(res);
 515         if (difftime(time(0), updateStartTime) > 1) fprintf(stderr, "  Slow place_id %ld\n", place_id);
 516
 517         if (thread_data->writer)
 518         {
 519             nominatim_exportPlace(place_id, thread_data->conn, thread_data->writer, thread_data->writer_mutex, &querySet);
 520             nominatim_exportFreeQueries(&querySet);
 521         }
 522     }
 523
 524     return NULL;
 525 }