mirror of
https://github.com/openstreetmap/mod_tile.git
synced 2025-08-01 07:43:30 +00:00
dd57fa7ea3
sets the new MaxLoadMissing to 50 and MaxLoadOld to 16. With the prevalence of multi core servers today, the previous default thresholds of 10 and 5 were becoming to lower than the average CPU count. Furthermore, load is not an ideal measure, as it includes I/O load and much of the I/O load might well come from serving rather than rendering. Especially if the database is on a separate SSD. Lastly, using the thresholds in mod_tile isn't super helpful, as due to hysteresis of rendering queues stop submitting tiles at a time of high load is not particularly helpful without stopping rendering from the queue.
90 lines
3.0 KiB
C
90 lines
3.0 KiB
C
#ifndef RENDER_CONFIG_H
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#define RENDER_CONFIG_H
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#define MAX_ZOOM 20
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// MAX_SIZE is the biggest file which we will return to the user
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#define MAX_SIZE (1 * 1024 * 1024)
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// With directory hashing enabled we rewrite the path so that tiles are really stored here instead
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#define DIRECTORY_HASH
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#define HASH_PATH "/var/lib/mod_tile"
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// TILE_PATH is where Openlayers with try to fetch the "z/x/y.png" tiles from
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// this is now only used if DIRECTORY_HASH is undefined
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//#define TILE_PATH "/var/www/html/osm_tiles2"
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// MAX_LOAD_OLD: if tile is out of date, don't re-render it if past this load threshold (users gets old tile)
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// (This is the default value. Can be overwritten in Apache config with ModTileMaxLoadOld.)
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#define MAX_LOAD_OLD 16
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// MAX_LOAD_MISSING: if tile is missing, don't render it if past this load threshold (user gets 404 error)
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// (This is the default value. Can be overwritten in Apache config with ModTileMaxLoadMissing.)
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#define MAX_LOAD_MISSING 50
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// MAX_LOAD_ANY: give up serving any data if beyond this load (user gets 404 error)
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#define MAX_LOAD_ANY 100
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//VERYOLD_THRESHOLD: defines how old a tile needs to be (in microseconds) to get rendering priority rather than renderingLow priority
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//1000000*3600*24*365 = 31536000000000
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#define VERYOLD_THRESHOLD 31536000000000
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// Location of osm.xml file
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#define RENDERD_CONFIG "/etc/renderd.conf"
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// The XML configuration used if one is not provided
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#define XMLCONFIG_DEFAULT "default"
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// Maximum number of configurations that mod tile will allow
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#define XMLCONFIGS_MAX 10
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// Mapnik input plugins (will need to adjust for 32 bit libs)
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#define MAPNIK_PLUGINS "/usr/local/lib64/mapnik/input"
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// Default directory to search for fonts. Recursion can be enabled if desired.
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#define FONT_DIR "/usr/local/lib64/mapnik/fonts"
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#define FONT_RECURSE 0
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// Typical interval between planet imports, used as basis for tile expiry times
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#define PLANET_INTERVAL (7 * 24 * 60 * 60)
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// Planet import should touch this file when complete
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#define PLANET_TIMESTAMP "/planet-import-complete"
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// Timeout before giving for a tile to be rendered
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// (This is the default value. Can be overwritten in Apache config with ModTileRequestTimeout.)
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#define REQUEST_TIMEOUT (3)
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#define FD_INVALID (-1)
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#define MIN(x,y) ((x)<(y)?(x):(y))
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#define MAX(x,y) ((x)>(y)?(x):(y))
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#define MAX_CONNECTIONS (2048)
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// default for number of rendering threads
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#define NUM_THREADS (4)
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// Use this to enable meta-tiles which will render NxN tiles at once
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// Note: This should be a power of 2 (2, 4, 8, 16 ...)
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#define METATILE (8)
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//#undef METATILE
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//Fallback to standard tiles if meta tile doesn't exist
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//Legacy - not needed on new installs
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//#undef METATILEFALLBACK
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// Metatiles are much larger in size so we don't need big queues to handle large areas
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#ifdef METATILE
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#define QUEUE_MAX (64)
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#define REQ_LIMIT (32)
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#define DIRTY_LIMIT (1000)
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#else
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#define QUEUE_MAX (1024)
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#define REQ_LIMIT (512)
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#define DIRTY_LIMIT (10000)
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#define HASHIDX_SIZE 22123
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#endif
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// Penalty for client making an invalid request (in seconds)
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#define CLIENT_PENALTY (3)
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#endif
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