mirror of
https://github.com/openstreetmap/mod_tile.git
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1b4c56d8ed
In addition to Render and RenderPrio, add another priority level of RenderLow. The idea is that if you rerender all tiles by touching planet-import-complete and thereby likely overloading the server's rendering capacity you want to prioritize rerendering of tiles that were explicitly marked dirty due to data changes over rerendering due to planet-import-complete updates. This is achieved by splitting rendering requests by if they are "old", or "very old". As the tile expiry sets back the modification date many years, mod_tile splits rendering requests based on how old the tiles are. If they are no more than a certain threshold (currently set to one year) old, they are rendered with lower priority.
133 lines
3.7 KiB
C
133 lines
3.7 KiB
C
#ifndef MODTILE_H
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#define MODTILE_H
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#include "store.h"
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/*Size of the delaypool hashtable*/
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#define DELAY_HASHTABLE_SIZE 100057
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#define DELAY_HASHTABLE_WHITELIST_SIZE 13
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/*Number of tiles in the bucket */
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#define AVAILABLE_TILE_BUCKET_SIZE 5000
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/*Number of render request in the bucket */
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#define AVAILABLE_RENDER_BUCKET_SIZE 65
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/*Number of microseconds per render request. Currently set at no more than 1 render request per 5 seconds on average */
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#define RENDER_TOPUP_RATE 5000000l
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/*Number of microseconds per render request. Currently set at no more than 1 request per second on average */
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#define TILE_TOPUP_RATE 1000000l
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#define INILINE_MAX 256
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#define MAX_ZOOM_SERVER 30
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#define FRESH 1
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#define OLD 2
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#define FRESH_RENDER 3
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#define OLD_RENDER 4
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#define VERYOLD_RENDER 5
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#define VERYOLD 6
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/* Number of microseconds to camp out on the mutex */
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#define CAMPOUT 10
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/* Maximum number of times we camp out before giving up */
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#define MAXCAMP 10
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#define DEFAULT_ATTRIBUTION "©<a href=\"http://www.openstreetmap.org/\">OpenStreetMap</a> and <a href=\"http://wiki.openstreetmap.org/wiki/Contributors\">contributors</a>, <a href=\"http://opendatacommons.org/licenses/odbl/\">(ODbL)</a>"
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typedef struct delaypool_entry {
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struct in6_addr ip_addr;
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int available_tiles;
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int available_render_req;
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} delaypool_entry;
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typedef struct delaypool {
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delaypool_entry users[DELAY_HASHTABLE_SIZE];
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in_addr_t whitelist[DELAY_HASHTABLE_WHITELIST_SIZE];
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apr_time_t last_tile_fillup;
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apr_time_t last_render_fillup;
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int locked;
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} delaypool;
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typedef struct stats_data {
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apr_uint64_t noResp200;
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apr_uint64_t noResp304;
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apr_uint64_t noResp404;
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apr_uint64_t noResp503;
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apr_uint64_t noResp5XX;
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apr_uint64_t noRespOther;
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apr_uint64_t noFreshCache;
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apr_uint64_t noFreshRender;
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apr_uint64_t noOldCache;
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apr_uint64_t noOldRender;
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apr_uint64_t noVeryOldCache;
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apr_uint64_t noVeryOldRender;
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apr_uint64_t noRespZoom[MAX_ZOOM_SERVER + 1];
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apr_uint64_t totalBufferRetrievalTime;
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apr_uint64_t noTotalBufferRetrieval;
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apr_uint64_t zoomBufferRetrievalTime[MAX_ZOOM_SERVER + 1];
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apr_uint64_t noZoomBufferRetrieval[MAX_ZOOM_SERVER + 1];
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apr_uint64_t *noResp200Layer;
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apr_uint64_t *noResp404Layer;
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} stats_data;
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typedef struct {
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const char * store;
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char xmlname[XMLCONFIG_MAX];
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char baseuri[PATH_MAX];
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char fileExtension[PATH_MAX];
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char mimeType[PATH_MAX];
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const char * description;
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const char * attribution;
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const char * cors;
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char **hostnames;
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int noHostnames;
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int minzoom;
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int maxzoom;
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int aspect_x;
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int aspect_y;
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} tile_config_rec;
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typedef struct {
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apr_array_header_t *configs;
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int request_timeout;
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int request_timeout_priority;
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int max_load_old;
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int max_load_missing;
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apr_time_t veryold_threshold;
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int cache_duration_dirty;
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int cache_duration_max;
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int cache_duration_minimum;
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int cache_duration_low_zoom;
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int cache_level_low_zoom;
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int cache_duration_medium_zoom;
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int cache_level_medium_zoom;
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double cache_duration_last_modified_factor;
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char renderd_socket_name[PATH_MAX];
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int renderd_socket_port;
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char tile_dir[PATH_MAX];
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char cache_extended_hostname[PATH_MAX];
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int cache_extended_duration;
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int mincachetime[MAX_ZOOM_SERVER + 1];
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int enableGlobalStats;
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int enableTileThrottling;
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int enableTileThrottlingXForward;
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int delaypoolTileSize;
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long delaypoolTileRate;
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int delaypoolRenderSize;
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long delaypoolRenderRate;
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int bulkMode;
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} tile_server_conf;
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typedef struct tile_request_data {
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struct protocol * cmd;
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struct storage_backend * store;
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int layerNumber;
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} tile_request_data;
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enum tileState { tileMissing, tileOld, tileVeryOld, tileCurrent };
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#endif
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