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HAProxy used to deduce port used for health checks when parsing configuration at startup time. Because of this way of working, it makes it complicated to change the port at run time. The current patch changes this behavior and makes HAProxy to choose the port used for health checking when preparing the check task itself. A new type of error is introduced and reported when no port can be found. There won't be any impact on performance, since the process to find out the port value is made of a few 'if' statements. This patch also introduces a new check state CHK_ST_PORT_MISS: this flag is used to report an error in the case when HAProxy needs to establish a TCP connection to a server, to perform a health check but no TCP ports can be found for it. And last, it also introduces a new stream termination condition: SF_ERR_CHK_PORT. Purpose of this flag is to report an error in the event when HAProxy has to run a health check but no port can be found to perform it.
62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
/*
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include/proto/checks.h
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Functions prototypes for the checks.
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Copyright (C) 2000-2009 Willy Tarreau - w@1wt.eu
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation, version 2.1
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exclusively.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _PROTO_CHECKS_H
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#define _PROTO_CHECKS_H
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#include <types/task.h>
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#include <common/config.h>
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const char *get_check_status_description(short check_status);
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const char *get_check_status_info(short check_status);
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int start_checks();
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void __health_adjust(struct server *s, short status);
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int trigger_resolution(struct server *s);
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extern struct data_cb check_conn_cb;
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/* Use this one only. This inline version only ensures that we don't
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* call the function when the observe mode is disabled.
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*/
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static inline void health_adjust(struct server *s, short status)
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{
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/* return now if observing nor health check is not enabled */
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if (!s->observe || !s->check.task)
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return;
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return __health_adjust(s, status);
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}
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const char *init_check(struct check *check, int type);
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void free_check(struct check *check);
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void send_email_alert(struct server *s, int priority, const char *format, ...)
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__attribute__ ((format(printf, 3, 4)));
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int srv_check_healthcheck_port(struct check *chk);
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#endif /* _PROTO_CHECKS_H */
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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