/config/memcache endpoint
#54
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shlomi-noach
approved these changes
Sep 10, 2017
| @@ -101,6 +101,8 @@ Notes: | |||
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| - `/help`: show all supported request paths | |||
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| - `/config/memcache`: show the [memcache](memcache.md) configuration used, so freno clients can use it to implement more efficient read strategies. | |||
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| "MemcacheServers": [], | ||
| "MemcachePath": "freno", | ||
| } | ||
| ``` |
| } | ||
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| w.Header().Set("Content-Type", "application/json") | ||
| json.NewEncoder(w).Encode(memcacheConfig) |
go/config/config.go
Outdated
| @@ -119,5 +119,8 @@ func (settings *ConfigurationSettings) postReadAdjustments() error { | |||
| if err := settings.Stores.postReadAdjustments(); err != nil { | |||
| return err | |||
| } | |||
| if settings.MemcachePath == "" { | |||
| settings.MemcachePath = "freno" | |||
| } | |||
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Freno clients can use Freno's memcache configuration at runtime to implement smarter strategies to access replication delay. This PR extends freno's HTTP API to provide the
GET /config/memcacheservice, which returns the json representation of the memcache configuration in use:{ "MemcacheServers": [ "memcache.server.one:11211", "memcache.server.two:11211", "memcache.server.three:11211" ], "MemcachePath": "freno-production", }If freno is not configured to publish metrics to memcache, the following defaults will be returned:
{ "MemcacheServers": [], "MemcachePath": "freno", }