HAProxy Enterprise Documentation 2.5r1

show map

Use show map to list map files defined in the configuration.

Description

Use the show map command to list map files or to display the contents of a particular map file. The contents of the map may be different from what's on disk if you've used the Runtime API to add or delete entries in memory.

For each map file, the show map command shows the following map file version information:

  • curr_ver indicates the currently active version number of the map file.

  • next_ver indicates the version number of the temporary version (in-progress transaction) of the map file.

  • entry_cnt indicates the number of entries in the temporary transaction version of the map file.

Examples

In the example below, we use show map with no arguments to list the map files registered with the load balancer. The output shows the path to the map files and their numeric IDs:

$ echo "show map" | \
   sudo socat stdio unix-connect:/var/run/hapee-2.5/hapee-lb.sock
# id (file) description
0 (/etc/hapee-2.5/routes.map) pattern loaded from file '/etc/hapee-2.5/routes.map' used by map at file '/etc/hapee-2.5/hapee-lb.cfg' line 61. curr_ver=0 next_ver=2 entry_cnt=2

In this case, there is one map file defined at /etc/hapee-2.5/routes.map and its ID is 0.

  1. Display the contents of the /etc/hapee-2.5/routes.map map file by passing its path to show map:

    $ echo "show map /etc/hapee-2.5/routes.map" | \
   sudo socat stdio unix-connect:/var/run/hapee-2.5/hapee-lb.sock
    0x563bbeeee160 /cart/ cart_api
0x563bbeeee1a0 /reviews/ reviews_api
0x563bbeeee200 /products/ products_api
0x563bbeeee280 /login/ login_api
0x563bbeeee300 /chat/ chat_servers

    You can also pass it the map's ID prefixed with a hash sign:

    $ echo "show map #0" | \
   sudo socat stdio unix-connect:/var/run/hapee-2.5/hapee-lb.sock
    0x563bbeeee160 /cart/ cart_api
0x563bbeeee1a0 /reviews/ reviews_api
0x563bbeeee200 /products/ products_api
0x563bbeeee280 /login/ login_api
0x563bbeeee300 /chat/ chat_servers

You can also show the uncommitted changes in the uncommitted version of a map file:

$ echo "show map @3 #2" | \
   sudo socat stdio unix-connect:/var/run/hapee-2.5/hapee-lb.sock

See also

Next up

show peers