4.6 KiB
Global Memcache Configuration
This document describes the configuration options available for the
global swift memcache configuration which usually lives under
/etc/swift/memcache.conf. Documentation for other swift configuration
options can be found at index.
An example memcache.conf configuration can be found at etc/memcache.conf-sample in the source code repository.
There is only 1 configuration section available:
[memcache] <memcache_conf_memcache_section>
[memcache]
| Option | Default | Description |
|---|---|---|
memcache_servers |
127.0.0.1:11211 |
Comma separated list of memcached servers ip:port or [ipv6addr]:port |
memcache_max_connections |
2 |
Max number of connections to each memcached server per worker |
| connect_timeout | 0.3 | Timeout for connection |
| pool_timeout | 1.0 | Timeout for pooled connection |
tries |
3 |
Number of servers to retry on failures getting a pooled connection |
| io_timeout | 2.0 | Timeout for read and writes |
error_suppression_interval |
60.0 |
How long without an error before a server's error count is reset. This will also be how long before a server is reenabled after suppression is triggered. Set to 0 to disable error-limiting. |
error_suppression_limit |
10 |
How many errors can accumulate before a server is temporarily ignored |
item_size_warning_threshold |
-1 |
If an item size ever gets above item_size_warning_threshold then a warning will be logged. This can be used to alert when memcache item sizes are getting to their limit. It's an absolute size in bytes. Setting the value to 0 will warn on every memcache set. A value of -1 disables the warning |
tls_enabled tls_cafile tls_certfile tls_keyfile |
False |
(Optional) Global toggle for TLS usage when comunicating with the caching servers (Optional) Path to a file of concatenated CA certificates in PEM format necessary to establish the caching server's authenticity. If tls_enabled is False, this option is ignored. (Optional) Path to a single file in PEM format containing the client's certificate as well as any number of CA certificates needed to establish the certificate's authenticity. This file is only required when client side authentication is necessary. If tls_enabled is False, this option is ignored (Optional) Path to a single file containing the client's private key in. Otherwhise the private key will be taken from the file specified in tls_certfile. If tls_enabled is False, this option is ignored |