X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=libmemcached%2Fmemcached_connect.c;h=0d61f847bab0996e2de08a41ba333b47851b720c;hb=7b548d21a8eafec0b830ad1bd6429cecd4eaeba8;hp=8e0e4208e864f11556ed8aaa9927aa8b15400c11;hpb=ea717ffe5f03f7241038553e475addb9926d62fe;p=awesomized%2Flibmemcached diff --git a/libmemcached/memcached_connect.c b/libmemcached/memcached_connect.c index 8e0e4208..0d61f847 100644 --- a/libmemcached/memcached_connect.c +++ b/libmemcached/memcached_connect.c @@ -121,7 +121,7 @@ static memcached_return set_socket_options(memcached_server_st *ptr) } /* For the moment, not getting a nonblocking mode will not be fatal */ - if (ptr->root->flags & MEM_NO_BLOCK) + if ((ptr->root->flags & MEM_NO_BLOCK) || ptr->root->connect_timeout) { int flags; @@ -185,15 +185,6 @@ static memcached_return network_connect(memcached_server_st *ptr) { struct addrinfo *use; - if (ptr->root->server_failure_limit != 0) - { - if (ptr->server_failure_counter >= ptr->root->server_failure_limit) - { - memcached_server_remove(ptr); - return MEMCACHED_FAILURE; - } - } - if (!ptr->sockaddr_inited || (!(ptr->root->flags & MEM_USE_CACHE_LOOKUPS))) { @@ -227,7 +218,7 @@ static memcached_return network_connect(memcached_server_st *ptr) (void)set_socket_options(ptr); - int flags; + int flags= 0; if (ptr->root->connect_timeout) { flags= fcntl(ptr->fd, F_GETFL, 0); @@ -243,7 +234,9 @@ static memcached_return network_connect(memcached_server_st *ptr) if (errno == EINPROGRESS || /* nonblocking mode - first return, */ errno == EALREADY) /* nonblocking mode - subsequent returns */ { - struct pollfd fds[1] = { [0].fd = ptr->fd, [0].events = POLLOUT }; + struct pollfd fds[1]; + fds[0].fd = ptr->fd; + fds[0].events = POLLOUT; int error= poll(fds, 1, ptr->root->connect_timeout); if (error != 1 || fds[0].revents & POLLERR) @@ -251,9 +244,9 @@ static memcached_return network_connect(memcached_server_st *ptr) if (fds[0].revents & POLLERR) { int err; - int len = sizeof (err); + socklen_t len = sizeof (err); (void)getsockopt(ptr->fd, SOL_SOCKET, SO_ERROR, &err, &len); - ptr->cached_errno= errno; + ptr->cached_errno= (err == 0) ? errno : err; } (void)close(ptr->fd); @@ -275,7 +268,7 @@ static memcached_return network_connect(memcached_server_st *ptr) if (ptr->fd != -1) { /* restore flags */ - if (ptr->root->connect_timeout && (flags & O_NONBLOCK) == 0) + if (ptr->root->connect_timeout && (ptr->root->flags & MEM_NO_BLOCK) == 0) (void)fcntl(ptr->fd, F_SETFL, flags & ~O_NONBLOCK); WATCHPOINT_ASSERT(ptr->cursor_active == 0); @@ -297,6 +290,8 @@ static memcached_return network_connect(memcached_server_st *ptr) ptr->next_retry= next_time.tv_sec + ptr->root->retry_timeout; } ptr->server_failure_counter+= 1; + if (ptr->cached_errno == 0) + return MEMCACHED_TIMEOUT; return MEMCACHED_ERRNO; /* The last error should be from connect() */ } @@ -310,14 +305,30 @@ memcached_return memcached_connect(memcached_server_st *ptr) memcached_return rc= MEMCACHED_NO_SERVERS; LIBMEMCACHED_MEMCACHED_CONNECT_START(); - if (ptr->root->retry_timeout) + /* both retry_timeout and server_failure_limit must be set in order to delay retrying a server on error. */ + WATCHPOINT_ASSERT(ptr->root); + if (ptr->root->retry_timeout && ptr->root->server_failure_limit) { struct timeval next_time; gettimeofday(&next_time, NULL); + + /* if we've had too many consecutive errors on this server, mark it dead. */ + if (ptr->server_failure_counter > ptr->root->server_failure_limit) + { + ptr->next_retry= next_time.tv_sec + ptr->root->retry_timeout; + ptr->server_failure_counter= 0; + } + if (next_time.tv_sec < ptr->next_retry) - return MEMCACHED_TIMEOUT; + { + if (memcached_behavior_get(ptr->root, MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS)) + run_distribution(ptr->root); + + return MEMCACHED_SERVER_MARKED_DEAD; + } } + /* We need to clean up the multi startup piece */ switch (ptr->type) {