c184f464f7
Daniel Stenberg
2025-09-11
Subject
CURLOPT_MAXLIFETIME_CONN: make default 24 hours
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docs/libcurl/opts/CURLOPT_MAXLIFETIME_CONN.md+8 -6
| @@ -35,16 +35,18 @@ connection to have to be considered for reuse for this request. | |
| libcurl features a connection cache that holds previously used connections. | |
| When a new request is to be done, libcurl considers any connection that | |
| - | matches for reuse. The CURLOPT_MAXLIFETIME_CONN(3) limit prevents |
| - | libcurl from trying too old connections for reuse. This can be used for |
| - | client-side load balancing. If a connection is found in the cache that is |
| - | older than this set *maxlifetime*, it is instead marked for closure. |
| + | matches for reuse. The CURLOPT_MAXLIFETIME_CONN(3) limit prevents libcurl from |
| + | trying too old connections for reuse. This can be used for client-side load |
| + | balancing. If a connection is found in the cache that is older than this set |
| + | *maxlifetime*, it is instead marked for closure. |
| - | If set to 0, this behavior is disabled: all connections are eligible for reuse. |
| + | If set to 0, this behavior is disabled: all connections are eligible for |
| + | reuse. |
| # DEFAULT | |
| - | 0 seconds (i.e., disabled) |
| + | 24 hours (since 8.17.0). Before that, the default was 0 seconds (i.e., |
| + | disabled) |
| # %PROTOCOLS% | |
lib/url.c+1 -1
| @@ -488,7 +488,7 @@ CURLcode Curl_init_userdefined(struct Curl_easy *data) | |
| set->upkeep_interval_ms = CURL_UPKEEP_INTERVAL_DEFAULT; | |
| set->maxconnects = DEFAULT_CONNCACHE_SIZE; /* for easy handles */ | |
| set->conn_max_idle_ms = 118 * 1000; | |
| - | set->conn_max_age_ms = 0; |
| + | set->conn_max_age_ms = 24 * 3600 * 1000; |
| set->http09_allowed = FALSE; | |
| set->httpwant = CURL_HTTP_VERSION_NONE | |
| ; | |
lib/urldata.h+2 -2
| @@ -1390,9 +1390,9 @@ struct UserDefined { | |
| void *progress_client; /* pointer to pass to the progress callback */ | |
| void *ioctl_client; /* pointer to pass to the ioctl callback */ | |
| timediff_t conn_max_idle_ms; /* max idle time to allow a connection that | |
| - | is to be reused */ |
| + | is to be reused */ |
| timediff_t conn_max_age_ms; /* max time since creation to allow a | |
| - | connection that is to be reused */ |
| + | connection that is to be reused */ |
| curl_off_t filesize; /* size of file to upload, -1 means unknown */ | |
| long low_speed_limit; /* bytes/second */ | |
| long low_speed_time; /* number of seconds */ | |