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admin.c
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admin.c
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/*
* PgBouncer - Lightweight connection pooler for PostgreSQL.
*
* Copyright (c) 2007-2009 Marko Kreen, Skype Technologies OÜ
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* Admin console commands.
*/
#include "bouncer.h"
#include <usual/regex.h>
#include <usual/netdb.h>
#include <usual/endian.h>
#include <usual/safeio.h>
#include <usual/slab.h>
#include <usual/strpool.h>
/* regex elements */
#define WS0 "[ \t\n\r]*"
#define WS1 "[ \t\n\r]+"
#define WORD "(\"([^\"]+|\"\")*\"|[0-9a-z_]+)"
#define STRING "('([^']|'')*')"
/* possible max + 1 */
#define MAX_GROUPS 10
/* group numbers */
#define CMD_NAME 1
#define CMD_ARG 4
#define SET_KEY 1
#define SET_VAL 4
typedef bool (*cmd_func_t)(PgSocket *admin, const char *arg);
struct cmd_lookup {
const char *word;
cmd_func_t func;
};
/* CMD [arg]; */
static const char cmd_normal_rx[] =
"^" WS0 WORD "(" WS1 WORD ")?" WS0 "(;" WS0 ")?$";
/* SET with simple value */
static const char cmd_set_word_rx[] =
"^" WS0 "set" WS1 WORD WS0 "(=|to)" WS0 WORD WS0 "(;" WS0 ")?$";
/* SET with quoted value */
static const char cmd_set_str_rx[] =
"^" WS0 "set" WS1 WORD WS0 "(=|to)" WS0 STRING WS0 "(;" WS0 ")?$";
/* compiled regexes */
static regex_t rc_cmd;
static regex_t rc_set_word;
static regex_t rc_set_str;
static PgPool *admin_pool;
/* only valid during processing */
static const char *current_query;
void admin_cleanup(void)
{
regfree(&rc_cmd);
regfree(&rc_set_str);
regfree(&rc_set_word);
admin_pool = NULL;
}
static bool syntax_error(PgSocket *admin)
{
return admin_error(admin, "invalid command '%s', use SHOW HELP;",
current_query ? current_query : "<no query>");
}
static bool exec_cmd(struct cmd_lookup *lookup, PgSocket *admin,
const char *cmd, const char *arg)
{
for (; lookup->word; lookup++) {
if (strcasecmp(lookup->word, cmd) == 0)
return lookup->func(admin, arg);
}
return syntax_error(admin);
}
bool admin_error(PgSocket *admin, const char *fmt, ...)
{
char str[1024];
va_list ap;
bool res = true;
va_start(ap, fmt);
vsnprintf(str, sizeof(str), fmt, ap);
va_end(ap);
log_error("%s", str);
if (admin)
res = send_pooler_error(admin, true, NULL, false, str);
return res;
}
static int count_paused_databases(void)
{
struct List *item;
PgDatabase *db;
int cnt = 0;
statlist_for_each(item, &database_list) {
db = container_of(item, PgDatabase, head);
cnt += db->db_paused;
}
return cnt;
}
static int count_db_active(PgDatabase *db)
{
struct List *item;
PgPool *pool;
int cnt = 0;
statlist_for_each(item, &pool_list) {
pool = container_of(item, PgPool, head);
if (pool->db != db)
continue;
cnt += pool_server_count(pool);
}
return cnt;
}
bool admin_flush(PgSocket *admin, PktBuf *buf, const char *desc)
{
pktbuf_write_CommandComplete(buf, desc);
pktbuf_write_ReadyForQuery(buf);
return pktbuf_send_queued(buf, admin);
}
bool admin_ready(PgSocket *admin, const char *desc)
{
PktBuf buf;
uint8_t tmp[512];
pktbuf_static(&buf, tmp, sizeof(tmp));
pktbuf_write_CommandComplete(&buf, desc);
pktbuf_write_ReadyForQuery(&buf);
return pktbuf_send_immediate(&buf, admin);
}
/*
* some silly clients start actively messing with server parameters
* without checking if that's necessary. Fake some env for them.
*/
struct FakeParam {
const char *name;
const char *value;
};
static const struct FakeParam fake_param_list[] = {
{ "client_encoding", "UTF-8" },
{ "default_transaction_isolation", "read committed" },
{ "standard_conforming_strings", "on" },
{ "datestyle", "ISO" },
{ "timezone", "GMT" },
{ NULL },
};
/* fake result send, returns if handled */
static bool fake_show(PgSocket *admin, const char *name)
{
PktBuf *buf;
const struct FakeParam *p;
bool got = false;
for (p = fake_param_list; p->name; p++) {
if (strcasecmp(name, p->name) == 0) {
got = true;
break;
}
}
if (got) {
buf = pktbuf_dynamic(256);
if (buf) {
pktbuf_write_RowDescription(buf, "s", p->name);
pktbuf_write_DataRow(buf, "s", p->value);
admin_flush(admin, buf, "SHOW");
} else {
admin_error(admin, "no mem");
}
}
return got;
}
static bool fake_set(PgSocket *admin, const char *key, const char *val)
{
PktBuf *buf;
const struct FakeParam *p;
bool got = false;
for (p = fake_param_list; p->name; p++) {
if (strcasecmp(key, p->name) == 0) {
got = true;
break;
}
}
if (got) {
buf = pktbuf_dynamic(256);
if (buf) {
pktbuf_write_Notice(buf, "SET ignored");
admin_flush(admin, buf, "SET");
} else {
admin_error(admin, "no mem");
}
}
return got;
}
/* Command: SET key = val; */
static bool admin_set(PgSocket *admin, const char *key, const char *val)
{
char tmp[512];
bool ok;
if (fake_set(admin, key, val))
return true;
if (admin->admin_user) {
ok = set_config_param(key, val);
if (ok) {
PktBuf *buf = pktbuf_dynamic(256);
if (!buf) {
return admin_error(admin, "no mem");
}
if (strstr(key, "_tls_") != NULL) {
if (!sbuf_tls_setup())
pktbuf_write_Notice(buf, "TLS settings could not be applied, still using old configuration");
}
snprintf(tmp, sizeof(tmp), "SET %s=%s", key, val);
return admin_flush(admin, buf, tmp);
} else {
return admin_error(admin, "SET failed");
}
} else {
return admin_error(admin, "admin access needed");
}
}
/* send a row with sendmsg, optionally attaching a fd */
static bool send_one_fd(PgSocket *admin,
int fd, const char *task,
const char *user, const char *db,
const char *addr, int port,
uint64_t ckey, int link,
const char *client_enc,
const char *std_strings,
const char *datestyle,
const char *timezone,
const char *password,
const uint8_t *scram_client_key,
int scram_client_key_len,
const uint8_t *scram_server_key,
int scram_server_key_len)
{
struct msghdr msg;
struct cmsghdr *cmsg;
struct iovec iovec;
ssize_t res;
uint8_t cntbuf[CMSG_SPACE(sizeof(int))];
struct PktBuf *pkt = pktbuf_temp();
pktbuf_write_DataRow(pkt, "issssiqisssssbb",
fd, task, user, db, addr, port, ckey, link,
client_enc, std_strings, datestyle, timezone,
password,
scram_client_key_len, scram_client_key,
scram_server_key_len, scram_server_key);
if (pkt->failed)
return false;
iovec.iov_base = pkt->buf;
iovec.iov_len = pktbuf_written(pkt);
/* sending fds */
memset(&msg, 0, sizeof(msg));
msg.msg_iov = &iovec;
msg.msg_iovlen = 1;
/* attach a fd */
if (pga_is_unix(&admin->remote_addr) && admin->own_user && !admin->sbuf.tls) {
msg.msg_control = cntbuf;
msg.msg_controllen = sizeof(cntbuf);
cmsg = CMSG_FIRSTHDR(&msg);
cmsg->cmsg_level = SOL_SOCKET;
cmsg->cmsg_type = SCM_RIGHTS;
cmsg->cmsg_len = CMSG_LEN(sizeof(int));
memcpy(CMSG_DATA(cmsg), &fd, sizeof(int));
msg.msg_controllen = cmsg->cmsg_len;
}
slog_debug(admin, "sending socket list: fd=%d, len=%d",
fd, (int)msg.msg_controllen);
if (msg.msg_controllen) {
res = safe_sendmsg(sbuf_socket(&admin->sbuf), &msg, 0);
} else {
res = sbuf_op_send(&admin->sbuf, pkt->buf, pktbuf_written(pkt));
}
if (res < 0) {
log_error("send_one_fd: sendmsg error: %s", strerror(errno));
return false;
} else if ((size_t)res != iovec.iov_len) {
log_error("send_one_fd: partial sendmsg");
return false;
}
return true;
}
/* send a row with sendmsg, optionally attaching a fd */
static bool show_one_fd(PgSocket *admin, PgSocket *sk)
{
PgAddr *addr = &sk->remote_addr;
struct MBuf tmp;
VarCache *v = &sk->vars;
uint64_t ckey;
const struct PStr *client_encoding = v->var_list[VClientEncoding];
const struct PStr *std_strings = v->var_list[VStdStr];
const struct PStr *datestyle = v->var_list[VDateStyle];
const struct PStr *timezone = v->var_list[VTimeZone];
char addrbuf[PGADDR_BUF];
const char *password = NULL;
bool send_scram_keys = false;
/* Skip TLS sockets */
if (sk->sbuf.tls || (sk->link && sk->link->sbuf.tls))
return true;
mbuf_init_fixed_reader(&tmp, sk->cancel_key, 8);
if (!mbuf_get_uint64be(&tmp, &ckey))
return false;
if (sk->pool && sk->pool->db->auth_user_credentials && sk->login_user_credentials && !find_global_user(sk->login_user_credentials->name))
password = sk->login_user_credentials->passwd;
/* PAM requires passwords as well since they are not stored externally */
if (cf_auth_type == AUTH_TYPE_PAM && !find_global_user(sk->login_user_credentials->name))
password = sk->login_user_credentials->passwd;
if (sk->pool && sk->pool->user_credentials && sk->pool->user_credentials->has_scram_keys)
send_scram_keys = true;
return send_one_fd(admin, sbuf_socket(&sk->sbuf),
is_server_socket(sk) ? "server" : "client",
sk->login_user_credentials ? sk->login_user_credentials->name : NULL,
sk->pool ? sk->pool->db->name : NULL,
pga_ntop(addr, addrbuf, sizeof(addrbuf)),
pga_port(addr),
ckey,
sk->link ? sbuf_socket(&sk->link->sbuf) : 0,
client_encoding ? client_encoding->str : NULL,
std_strings ? std_strings->str : NULL,
datestyle ? datestyle->str : NULL,
timezone ? timezone->str : NULL,
password,
send_scram_keys ? sk->pool->user_credentials->scram_ClientKey : NULL,
send_scram_keys ? (int) sizeof(sk->pool->user_credentials->scram_ClientKey) : -1,
send_scram_keys ? sk->pool->user_credentials->scram_ServerKey : NULL,
send_scram_keys ? (int) sizeof(sk->pool->user_credentials->scram_ServerKey) : -1);
}
static bool show_pooler_cb(void *arg, int fd, const PgAddr *a)
{
char buf[PGADDR_BUF];
return send_one_fd(arg, fd, "pooler", NULL, NULL,
pga_ntop(a, buf, sizeof(buf)), pga_port(a), 0, 0,
NULL, NULL, NULL, NULL, NULL, NULL, -1, NULL, -1);
}
/* send a row with sendmsg, optionally attaching a fd */
static bool show_pooler_fds(PgSocket *admin)
{
return for_each_pooler_fd(show_pooler_cb, admin);
}
static bool show_fds_from_list(PgSocket *admin, struct StatList *list)
{
struct List *item;
PgSocket *sk;
bool res = true;
statlist_for_each(item, list) {
sk = container_of(item, PgSocket, head);
res = show_one_fd(admin, sk);
if (!res)
break;
}
return res;
}
/*
* Command: SHOW FDS
*
* If privileged connection, send also actual fds
*/
static bool admin_show_fds(PgSocket *admin, const char *arg)
{
struct List *item;
PgPool *pool;
bool res;
/*
* Dangerous to show to everybody:
* - can lock pooler as code flips async option
* - show cancel keys for all users
* - shows passwords (md5) for dynamic users
*/
if (!admin->admin_user)
return admin_error(admin, "admin access needed");
/*
* It's very hard to send it reliably over in async manner,
* so turn async off for this resultset.
*/
socket_set_nonblocking(sbuf_socket(&admin->sbuf), 0);
/*
* send resultset
*/
SEND_RowDescription(res, admin, "issssiqisssssbb",
"fd", "task",
"user", "database",
"addr", "port",
"cancel", "link",
"client_encoding", "std_strings",
"datestyle", "timezone", "password",
"scram_client_key", "scram_server_key");
if (res)
res = show_pooler_fds(admin);
if (res)
res = show_fds_from_list(admin, &login_client_list);
statlist_for_each(item, &pool_list) {
pool = container_of(item, PgPool, head);
if (pool->db->admin)
continue;
res = res && show_fds_from_list(admin, &pool->active_client_list);
res = res && show_fds_from_list(admin, &pool->waiting_client_list);
res = res && show_fds_from_list(admin, &pool->active_server_list);
res = res && show_fds_from_list(admin, &pool->idle_server_list);
res = res && show_fds_from_list(admin, &pool->used_server_list);
res = res && show_fds_from_list(admin, &pool->tested_server_list);
res = res && show_fds_from_list(admin, &pool->new_server_list);
if (!res)
break;
}
if (res)
res = admin_ready(admin, "SHOW");
/* turn async back on */
socket_set_nonblocking(sbuf_socket(&admin->sbuf), 1);
return res;
}
/* Command: SHOW DATABASES */
static bool admin_show_databases(PgSocket *admin, const char *arg)
{
PgDatabase *db;
struct List *item;
const char *f_user;
PktBuf *buf;
struct CfValue cv;
struct CfValue load_balance_hosts_lookup;
const char *pool_mode_str;
usec_t server_lifetime_secs;
const char *load_balance_hosts_str;
cv.extra = pool_mode_map;
load_balance_hosts_lookup.extra = load_balance_hosts_map;
buf = pktbuf_dynamic(256);
if (!buf) {
admin_error(admin, "no mem");
return true;
}
pktbuf_write_RowDescription(buf, "ssissiiiissiiiiii",
"name", "host", "port",
"database", "force_user", "pool_size", "min_pool_size", "reserve_pool",
"server_lifetime", "pool_mode", "load_balance_hosts", "max_connections",
"current_connections", "max_client_connections", "current_client_connections",
"paused", "disabled");
statlist_for_each(item, &database_list) {
db = container_of(item, PgDatabase, head);
server_lifetime_secs = (db->server_lifetime > 0 ? db->server_lifetime : cf_server_lifetime) / USEC;
f_user = db->forced_user_credentials ? db->forced_user_credentials->name : NULL;
pool_mode_str = NULL;
load_balance_hosts_str = NULL;
cv.value_p = &db->pool_mode;
load_balance_hosts_lookup.value_p = &db->load_balance_hosts;
if (db->pool_mode != POOL_INHERIT)
pool_mode_str = cf_get_lookup(&cv);
if (db->host && strchr(db->host, ','))
load_balance_hosts_str = cf_get_lookup(&load_balance_hosts_lookup);
pktbuf_write_DataRow(buf, "ssissiiiissiiiiii",
db->name, db->host, db->port,
db->dbname, f_user,
db->pool_size >= 0 ? db->pool_size : cf_default_pool_size,
db->min_pool_size >= 0 ? db->min_pool_size : cf_min_pool_size,
db->res_pool_size >= 0 ? db->res_pool_size : cf_res_pool_size,
server_lifetime_secs,
pool_mode_str,
load_balance_hosts_str,
database_max_connections(db),
db->connection_count,
database_max_client_connections(db),
db->client_connection_count,
db->db_paused,
db->db_disabled);
}
admin_flush(admin, buf, "SHOW");
return true;
}
/* Command: SHOW PEERS */
static bool admin_show_peers(PgSocket *admin, const char *arg)
{
PgDatabase *peer;
struct List *item;
PktBuf *buf;
buf = pktbuf_dynamic(256);
if (!buf) {
admin_error(admin, "no mem");
return true;
}
pktbuf_write_RowDescription(buf, "isii",
"peer_id", "host", "port", "pool_size");
statlist_for_each(item, &peer_list) {
peer = container_of(item, PgDatabase, head);
pktbuf_write_DataRow(buf, "isii",
peer->peer_id, peer->host, peer->port,
peer->pool_size >= 0 ? peer->pool_size : cf_default_pool_size);
}
admin_flush(admin, buf, "SHOW");
return true;
}
/* Command: SHOW LISTS */
static bool admin_show_lists(PgSocket *admin, const char *arg)
{
PktBuf *buf = pktbuf_dynamic(256);
if (!buf) {
admin_error(admin, "no mem");
return true;
}
pktbuf_write_RowDescription(buf, "si", "list", "items");
#define SENDLIST(name, size) pktbuf_write_DataRow(buf, "si", (name), (size))
SENDLIST("databases", statlist_count(&database_list));
SENDLIST("users", statlist_count(&user_list));
SENDLIST("peers", statlist_count(&peer_list));
SENDLIST("pools", statlist_count(&pool_list));
SENDLIST("peer_pools", statlist_count(&peer_pool_list));
SENDLIST("free_clients", slab_free_count(client_cache));
SENDLIST("used_clients", slab_active_count(client_cache));
SENDLIST("login_clients", statlist_count(&login_client_list));
SENDLIST("free_servers", slab_free_count(server_cache));
SENDLIST("used_servers", slab_active_count(server_cache));
{
int names, zones, qry, pend;
adns_info(adns, &names, &zones, &qry, &pend);
SENDLIST("dns_names", names);
SENDLIST("dns_zones", zones);
SENDLIST("dns_queries", qry);
SENDLIST("dns_pending", pend);
}
admin_flush(admin, buf, "SHOW");
return true;
}
/* Command: SHOW USERS */
static bool admin_show_users(PgSocket *admin, const char *arg)
{
struct List *item;
PktBuf *buf = pktbuf_dynamic(256);
struct CfValue cv;
char pool_size_str[12] = "";
const char *pool_mode_str;
if (!buf) {
admin_error(admin, "no mem");
return true;
}
cv.extra = pool_mode_map;
pktbuf_write_RowDescription(
buf, "sssiiii", "name", "pool_size", "pool_mode", "max_user_connections", "current_connections",
"max_user_client_connections", "current_client_connections");
statlist_for_each(item, &user_list) {
PgGlobalUser *user = container_of(item, PgGlobalUser, head);
if (user->pool_size >= 0)
snprintf(pool_size_str, sizeof(pool_size_str), "%9d", user->pool_size);
pool_mode_str = NULL;
cv.value_p = &user->pool_mode;
if (user->pool_mode != POOL_INHERIT)
pool_mode_str = cf_get_lookup(&cv);
pktbuf_write_DataRow(buf, "sssiiii", user->credentials.name,
pool_size_str,
pool_mode_str,
user_max_connections(user),
user->connection_count,
user_client_max_connections(user),
user->client_connection_count
);
}
admin_flush(admin, buf, "SHOW");
return true;
}
#define SKF_STD "ssssssisiTTiiississii"
#define SKF_DBG "ssssssisiTTiiississiiiiiiiii"
static void socket_header(PktBuf *buf, bool debug)
{
pktbuf_write_RowDescription(buf, debug ? SKF_DBG : SKF_STD,
"type", "user", "database", "replication", "state",
"addr", "port", "local_addr", "local_port",
"connect_time", "request_time",
"wait", "wait_us", "close_needed",
"ptr", "link", "remote_pid", "tls",
"application_name",
"prepared_statements", "id",
/* debug follows */
"recv_pos", "pkt_pos", "pkt_remain",
"send_pos", "send_remain",
"pkt_avail", "send_avail");
}
static void adr2txt(const PgAddr *adr, char *dst, unsigned dstlen)
{
pga_ntop(adr, dst, dstlen);
}
static void socket_row(PktBuf *buf, PgSocket *sk, const char *state, bool debug)
{
int pkt_avail = 0, send_avail = 0;
int remote_pid;
int prepared_statement_count = 0;
char ptrbuf[128], linkbuf[128];
char l_addr[PGADDR_BUF], r_addr[PGADDR_BUF];
IOBuf *io = sk->sbuf.io;
char infobuf[96] = "";
VarCache *v = &sk->vars;
const struct PStr *application_name = v->var_list[VAppName];
usec_t now = get_cached_time();
usec_t wait_time = sk->query_start ? now - sk->query_start : 0;
char *replication;
if (io) {
pkt_avail = iobuf_amount_parse(sk->sbuf.io);
send_avail = iobuf_amount_pending(sk->sbuf.io);
}
adr2txt(&sk->remote_addr, r_addr, sizeof(r_addr));
adr2txt(&sk->local_addr, l_addr, sizeof(l_addr));
snprintf(ptrbuf, sizeof(ptrbuf), "%p", sk);
if (sk->link)
snprintf(linkbuf, sizeof(linkbuf), "%p", sk->link);
else
linkbuf[0] = 0;
/* get pid over unix socket */
if (pga_is_unix(&sk->remote_addr))
remote_pid = sk->remote_addr.scred.pid;
else
remote_pid = 0;
/* if that failed, get it from cancel key */
if (is_server_socket(sk) && remote_pid == 0)
remote_pid = be32dec(sk->cancel_key);
if (sk->sbuf.tls)
tls_get_connection_info(sk->sbuf.tls, infobuf, sizeof infobuf);
if (is_server_socket(sk))
prepared_statement_count = HASH_COUNT(sk->server_prepared_statements);
else
prepared_statement_count = HASH_COUNT(sk->client_prepared_statements);
if (sk->replication == REPLICATION_NONE)
replication = "none";
else if (sk->replication == REPLICATION_LOGICAL)
replication = "logical";
else
replication = "physical";
pktbuf_write_DataRow(buf, debug ? SKF_DBG : SKF_STD,
is_server_socket(sk) ? "S" : "C",
sk->login_user_credentials ? sk->login_user_credentials->name : "(nouser)",
sk->pool && !sk->pool->db->peer_id ? sk->pool->db->name : "(nodb)",
replication,
state, r_addr, pga_port(&sk->remote_addr),
l_addr, pga_port(&sk->local_addr),
sk->connect_time,
sk->request_time,
(int)(wait_time / USEC),
(int)(wait_time % USEC),
sk->close_needed,
ptrbuf, linkbuf, remote_pid, infobuf,
application_name ? application_name->str : "",
prepared_statement_count, sk->id,
/* debug */
io ? io->recv_pos : 0,
io ? io->parse_pos : 0,
sk->sbuf.pkt_remain,
io ? io->done_pos : 0,
0,
pkt_avail, send_avail);
}
/* Helper for SHOW CLIENTS/SERVERS/SOCKETS */
static void show_socket_list(PktBuf *buf, struct StatList *list, const char *state, bool debug)
{
struct List *item;
PgSocket *sk;
statlist_for_each(item, list) {
sk = container_of(item, PgSocket, head);
socket_row(buf, sk, state, debug);
}
}
/* Command: SHOW CLIENTS */
static bool admin_show_clients(PgSocket *admin, const char *arg)
{
struct List *item;
PgPool *pool;
PktBuf *buf = pktbuf_dynamic(256);
if (!buf) {
admin_error(admin, "no mem");
return true;
}
socket_header(buf, false);
statlist_for_each(item, &pool_list) {
pool = container_of(item, PgPool, head);
show_socket_list(buf, &pool->active_client_list, "active", false);
show_socket_list(buf, &pool->waiting_client_list, "waiting", false);
show_socket_list(buf, &pool->active_cancel_req_list, "active_cancel_req", false);
show_socket_list(buf, &pool->waiting_cancel_req_list, "waiting_cancel_req", false);
}
statlist_for_each(item, &peer_pool_list) {
pool = container_of(item, PgPool, head);
show_socket_list(buf, &pool->active_cancel_req_list, "active_cancel_req", false);
show_socket_list(buf, &pool->waiting_cancel_req_list, "waiting_cancel_req", false);
}
admin_flush(admin, buf, "SHOW");
return true;
}
/* Command: SHOW SERVERS */
static bool admin_show_servers(PgSocket *admin, const char *arg)
{
struct List *item;
PgPool *pool;
PktBuf *buf;
buf = pktbuf_dynamic(256);
if (!buf) {
admin_error(admin, "no mem");
return true;
}
socket_header(buf, false);
statlist_for_each(item, &pool_list) {
pool = container_of(item, PgPool, head);
show_socket_list(buf, &pool->active_server_list, "active", false);
show_socket_list(buf, &pool->idle_server_list, "idle", false);
show_socket_list(buf, &pool->used_server_list, "used", false);
show_socket_list(buf, &pool->tested_server_list, "tested", false);
show_socket_list(buf, &pool->new_server_list, "new", false);
show_socket_list(buf, &pool->active_cancel_server_list, "active_cancel", false);
show_socket_list(buf, &pool->being_canceled_server_list, "being_canceled", false);
}
statlist_for_each(item, &peer_pool_list) {
pool = container_of(item, PgPool, head);
show_socket_list(buf, &pool->new_server_list, "new", false);
show_socket_list(buf, &pool->active_cancel_server_list, "active_cancel", false);
}
admin_flush(admin, buf, "SHOW");
return true;
}
/* Command: SHOW SOCKETS */
static bool admin_show_sockets(PgSocket *admin, const char *arg)
{
struct List *item;
PgPool *pool;
PktBuf *buf;
buf = pktbuf_dynamic(256);
if (!buf) {
admin_error(admin, "no mem");
return true;
}
socket_header(buf, true);
statlist_for_each(item, &pool_list) {
pool = container_of(item, PgPool, head);
show_socket_list(buf, &pool->active_client_list, "cl_active", true);
show_socket_list(buf, &pool->waiting_client_list, "cl_waiting", true);
show_socket_list(buf, &pool->active_server_list, "sv_active", true);
show_socket_list(buf, &pool->idle_server_list, "sv_idle", true);
show_socket_list(buf, &pool->used_server_list, "sv_used", true);
show_socket_list(buf, &pool->tested_server_list, "sv_tested", true);
show_socket_list(buf, &pool->new_server_list, "sv_login", true);
}
show_socket_list(buf, &login_client_list, "cl_login", true);
admin_flush(admin, buf, "SHOW");
return true;
}
static void show_active_socket_list(PktBuf *buf, struct StatList *list, const char *state)
{
struct List *item;
statlist_for_each(item, list) {
PgSocket *sk = container_of(item, PgSocket, head);
if (!sbuf_is_empty(&sk->sbuf))
socket_row(buf, sk, state, true);
}
}
/* Command: SHOW ACTIVE_SOCKETS */
static bool admin_show_active_sockets(PgSocket *admin, const char *arg)
{
struct List *item;
PgPool *pool;
PktBuf *buf;
buf = pktbuf_dynamic(256);
if (!buf) {
admin_error(admin, "no mem");
return true;
}
socket_header(buf, true);
statlist_for_each(item, &pool_list) {
pool = container_of(item, PgPool, head);
show_active_socket_list(buf, &pool->active_client_list, "cl_active");
show_active_socket_list(buf, &pool->waiting_client_list, "cl_waiting");
show_active_socket_list(buf, &pool->active_server_list, "sv_active");
show_active_socket_list(buf, &pool->idle_server_list, "sv_idle");
show_active_socket_list(buf, &pool->used_server_list, "sv_used");
show_active_socket_list(buf, &pool->tested_server_list, "sv_tested");
show_active_socket_list(buf, &pool->new_server_list, "sv_login");
}
show_active_socket_list(buf, &login_client_list, "cl_login");
admin_flush(admin, buf, "SHOW");
return true;
}
/* Command: SHOW POOLS */
static bool admin_show_pools(PgSocket *admin, const char *arg)
{
struct List *item;
PgPool *pool;
PktBuf *buf;
PgSocket *waiter;
usec_t now = get_cached_time();
usec_t max_wait;
struct CfValue cv;
struct CfValue load_balance_hosts_lookup;
int pool_mode;
const char *load_balance_hosts_str;
cv.extra = pool_mode_map;
cv.value_p = &pool_mode;
load_balance_hosts_lookup.extra = load_balance_hosts_map;
buf = pktbuf_dynamic(256);
if (!buf) {
admin_error(admin, "no mem");
return true;
}
pktbuf_write_RowDescription(buf, "ssiiiiiiiiiiiiiss",
"database", "user",
"cl_active", "cl_waiting",
"cl_active_cancel_req",
"cl_waiting_cancel_req",
"sv_active",
"sv_active_cancel",
"sv_being_canceled",
"sv_idle",
"sv_used", "sv_tested",
"sv_login", "maxwait",
"maxwait_us", "pool_mode",
"load_balance_hosts");
statlist_for_each(item, &pool_list) {
pool = container_of(item, PgPool, head);
waiter = first_socket(&pool->waiting_client_list);
max_wait = (waiter && waiter->query_start) ? now - waiter->query_start : 0;
pool_mode = probably_wrong_pool_pool_mode(pool);
load_balance_hosts_str = NULL;
load_balance_hosts_lookup.value_p = &pool->db->load_balance_hosts;
if (pool->db->host && strchr(pool->db->host, ','))
load_balance_hosts_str = cf_get_lookup(&load_balance_hosts_lookup);
pktbuf_write_DataRow(buf, "ssiiiiiiiiiiiiiss",
pool->db->name, pool->user_credentials->name,
statlist_count(&pool->active_client_list),
statlist_count(&pool->waiting_client_list),
statlist_count(&pool->active_cancel_req_list),
statlist_count(&pool->waiting_cancel_req_list),
statlist_count(&pool->active_server_list),
statlist_count(&pool->active_cancel_server_list),
statlist_count(&pool->being_canceled_server_list),
statlist_count(&pool->idle_server_list),
statlist_count(&pool->used_server_list),
statlist_count(&pool->tested_server_list),
statlist_count(&pool->new_server_list),
/* how long is the oldest client waited */
(int)(max_wait / USEC),
(int)(max_wait % USEC),
cf_get_lookup(&cv),
load_balance_hosts_str);
}
admin_flush(admin, buf, "SHOW");
return true;
}
/* Command: SHOW PEER_POOLS */
static bool admin_show_peer_pools(PgSocket *admin, const char *arg)
{
struct List *item;
PgPool *pool;
PktBuf *buf;
buf = pktbuf_dynamic(256);
if (!buf) {
admin_error(admin, "no mem");
return true;
}
pktbuf_write_RowDescription(buf, "iiiii",
"peer_id",
"cl_active_cancel_req",
"cl_waiting_cancel_req",
"sv_active_cancel",
"sv_login");
statlist_for_each(item, &peer_pool_list) {
pool = container_of(item, PgPool, head);
pktbuf_write_DataRow(buf, "iiiii",
pool->db->peer_id,
statlist_count(&pool->active_cancel_req_list),
statlist_count(&pool->waiting_cancel_req_list),
statlist_count(&pool->active_cancel_server_list),
statlist_count(&pool->new_server_list));
}
admin_flush(admin, buf, "SHOW");
return true;
}
static void slab_stat_cb(void *arg, const char *slab_name,
unsigned size, unsigned free,
unsigned total)
{
PktBuf *buf = arg;
unsigned alloc = total * size;
pktbuf_write_DataRow(buf, "siiii", slab_name,
size, total - free, free, alloc);
}