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haproxy/include/proto/dumpstats.h

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[MEDIUM] moved stats and buffer generic functions to new files Neither the primitives used to write data to a buffer, nor the stats dump functions are HTTP-specific anymore. Move them to dedicated files
2007-10-17 15:06:05 +00:00
/*
include/proto/dumpstats.h
This file contains definitions of some primitives to dedicated to
statistics output.
[MEDIUM] modularize the global "stats" keyword configuration parser The "stats" keyword already relied on an external parser, let's make use of the new keyword registration mechanism.
2008-07-09 18:12:41 +00:00
Copyright (C) 2000-2008 Willy Tarreau - w@1wt.eu
[MAJOR] make unix sockets work again with stats The unix protocol handler had not been updated during the last stream_sock changes. This has been done now. There is still a lot of duplicated code between session.c and proto_uxst.c due to the way the session is handled. Session.c relies on the existence of a frontend while it does not exist here. It is easier to see the difference between the stats part (placed in dumpstats.c) and the unix-stream part (in proto_uxst.c). The hijacking function still needs to be dynamically set into the response buffer, and some cleanup is still required, then all those changes should be forward-ported to the HTTP part. Adding support for new keywords should not cause trouble now.
2008-12-07 15:06:43 +00:00
[MEDIUM] moved stats and buffer generic functions to new files Neither the primitives used to write data to a buffer, nor the stats dump functions are HTTP-specific anymore. Move them to dedicated files
2007-10-17 15:06:05 +00:00
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation, version 2.1
exclusively.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _PROTO_DUMPSTATS_H
#define _PROTO_DUMPSTATS_H
#include <common/config.h>
#include <types/buffers.h>
#include <types/session.h>
[MEDIUM] fix stats socket limitation to 16 kB Due to the way the stats socket work, it was not possible to maintain the information related to the command entered, so after filling a whole buffer, the request was lost and it was considered that there was nothing to write anymore. The major reason was that some flags were passed directly during the first call to stats_dump_raw() instead of being stored persistently in the session. To definitely fix this problem, flags were added to the stats member of the session structure. A second problem appeared. When the stats were produced, a first call to client_retnclose() was performed, then one or multiple subsequent calls to buffer_write_chunks() were done. But once the stats buffer was full and a reschedule operated, the buffer was flushed, the write flag cleared from the buffer and nothing was done to re-arm it. For this reason, a check was added in the proto_uxst_stats() function in order to re-call the client FSM when data were added by stats_dump_raw(). Finally, the whole unix stats dump FSM was rewritten to avoid all the magics it depended on. It is now simpler and looks more like the HTTP one.
2008-03-17 20:38:24 +00:00
/* Flags for session->data_ctx.stats.flags */
#define STAT_FMT_CSV 0x00000001 /* dump the stats in CSV format instead of HTML */
#define STAT_SHOW_STAT 0x00000002 /* dump the stats part */
#define STAT_SHOW_INFO 0x00000004 /* dump the info part */
#define STAT_HIDE_DOWN 0x00000008 /* hide 'down' servers in the stats page */
#define STAT_NO_REFRESH 0x00000010 /* do not automatically refresh the stats page */
#define STAT_BOUND 0x00800000 /* bound statistics to selected proxies/types/services */
[MEDIUM] implement the CSV output for the statistics It is now possible to get CSV ouput from the statistics by simply appending ";csv" to the HTTP request sent to get the stats. The fields keep the same ordering as in the HTML page, and a field "pxname" has been prepended at the beginning of the line.
2007-10-17 16:44:57 +00:00
[MAJOR] proto_uxst rework -> SNMP support Currently there is a ~16KB limit for a data size passed via unix socket. It is caused by a trivial bug ttat is going to fixed soon, however in most cases there is no need to dump a full stats. This patch makes possible to select a scope of dumped data by extending current "show stat" to "show stat [<iid> <type> <sid>]": - iid is a proxy id, -1 to dump all proxies - type selects type of dumpable objects: 1 for frontend, 2 for backend, 4 for server, -1 for all types. Values can be ORed, for example: 1+2=3 -> frontend+backend. 1+2+4=7 -> frontend+backend+server. - sid is a service id, -1 to dump everything from the selected proxy. To do this I implemented a new session flag (SN_STAT_BOUND), added three variables in data_ctx.stats (iid, type, sid), modified dumpstats.c and completely revorked the process_uxst_stats: now it waits for a "\n" terminated string, splits args and uses them. BTW: It should be quite easy to add new commands, for example to enable/disable servers, the only problem I can see is a not very lucky config name (*stats* socket). :| During the work I also fixed two bug: - s->flags were not initialized for proto_uxst - missing comma if throttling not enabled (caused by a stupid change in "Implement persistent id for proxies and servers") Other changes: - No more magic type valuse, use STATS_TYPE_FE/STATS_TYPE_BE/STATS_TYPE_SV - Don't memset full s->data_ctx (it was clearing s->data_ctx.stats.{iid/type/sid}, instead initialize stats.sv & stats.sv_st (stats.px and stats.px_st were already initialized) With all that changes it was extremely easy to write a short perl plugin for a perl-enabled net-snmp (also included in this patch). 29385 is my PEN (Private Enterprise Number) and I'm willing to donate the SNMPv2-SMI::enterprises.29385.106.* OIDs for HAProxy if there is nothing assigned already.
2008-03-02 01:42:14 +00:00
#define STATS_TYPE_FE 0
#define STATS_TYPE_BE 1
#define STATS_TYPE_SV 2
[MAJOR] make unix sockets work again with stats The unix protocol handler had not been updated during the last stream_sock changes. This has been done now. There is still a lot of duplicated code between session.c and proto_uxst.c due to the way the session is handled. Session.c relies on the existence of a frontend while it does not exist here. It is easier to see the difference between the stats part (placed in dumpstats.c) and the unix-stream part (in proto_uxst.c). The hijacking function still needs to be dynamically set into the response buffer, and some cleanup is still required, then all those changes should be forward-ported to the HTTP part. Adding support for new keywords should not cause trouble now.
2008-12-07 15:06:43 +00:00
#define STATS_ST_INIT 0
#define STATS_ST_REQ 1
#define STATS_ST_REP 2
#define STATS_ST_CLOSE 3
[MEDIUM] fix stats socket limitation to 16 kB Due to the way the stats socket work, it was not possible to maintain the information related to the command entered, so after filling a whole buffer, the request was lost and it was considered that there was nothing to write anymore. The major reason was that some flags were passed directly during the first call to stats_dump_raw() instead of being stored persistently in the session. To definitely fix this problem, flags were added to the stats member of the session structure. A second problem appeared. When the stats were produced, a first call to client_retnclose() was performed, then one or multiple subsequent calls to buffer_write_chunks() were done. But once the stats buffer was full and a reschedule operated, the buffer was flushed, the write flag cleared from the buffer and nothing was done to re-arm it. For this reason, a check was added in the proto_uxst_stats() function in order to re-call the client FSM when data were added by stats_dump_raw(). Finally, the whole unix stats dump FSM was rewritten to avoid all the magics it depended on. It is now simpler and looks more like the HTTP one.
2008-03-17 20:38:24 +00:00
int stats_dump_raw(struct session *s, struct uri_auth *uri);
[MEDIUM] reference the current hijack function in the buffer itself Instead of calling a hard-coded function to produce data, let's reference this function into the buffer and call it from there when BF_HIJACK is set. This goes in the direction of more generic session management code.
2008-12-07 17:03:29 +00:00
void stats_dump_raw_to_buffer(struct session *s, struct buffer *req);
[MEDIUM] fix stats socket limitation to 16 kB Due to the way the stats socket work, it was not possible to maintain the information related to the command entered, so after filling a whole buffer, the request was lost and it was considered that there was nothing to write anymore. The major reason was that some flags were passed directly during the first call to stats_dump_raw() instead of being stored persistently in the session. To definitely fix this problem, flags were added to the stats member of the session structure. A second problem appeared. When the stats were produced, a first call to client_retnclose() was performed, then one or multiple subsequent calls to buffer_write_chunks() were done. But once the stats buffer was full and a reschedule operated, the buffer was flushed, the write flag cleared from the buffer and nothing was done to re-arm it. For this reason, a check was added in the proto_uxst_stats() function in order to re-call the client FSM when data were added by stats_dump_raw(). Finally, the whole unix stats dump FSM was rewritten to avoid all the magics it depended on. It is now simpler and looks more like the HTTP one.
2008-03-17 20:38:24 +00:00
int stats_dump_http(struct session *s, struct uri_auth *uri);
int stats_dump_proxy(struct session *s, struct proxy *px, struct uri_auth *uri);
[MEDIUM] moved stats and buffer generic functions to new files Neither the primitives used to write data to a buffer, nor the stats dump functions are HTTP-specific anymore. Move them to dedicated files
2007-10-17 15:06:05 +00:00
#endif /* _PROTO_DUMPSTATS_H */
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* End:
*/