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common.php
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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
/**
* Common file of PgpoolAdmin
*
* PHP versions 4 and 5
*
* LICENSE: Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that the above copyright notice appear in all
* copies and that both that copyright notice and this permission
* notice appear in supporting documentation, and that the name of the
* author not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. The author makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* @author Ryuma Ando <[email protected]>
* @copyright 2003-2020 PgPool Global Development Group
* @version SVN: $Id$
*/
require_once('version.php');
require_once('libs/Smarty.class.php');
require_once('conf/pgmgt.conf.php');
require_once('bootstrap.php');
require_once('definePgpoolConfParam.php');
error_reporting(E_ALL);
session_start();
/**
* Initialize Smartry
*/
$tpl = new Smarty();
$tpl->error_reporting = E_ALL & ~E_NOTICE;
$tpl->assign('version', $version);
if (! file_exists('conf/pgmgt.conf.php')) {
include('lang/en.lang.php');
$tpl->assign('message', $message);
$tpl->display('pgmgtNotFound.tpl');
exit();
}
/**
* Check login
*/
$tpl->assign('isLogin', isset($_SESSION[SESSION_LOGIN_USER]));
$tpl->assign('isHelp', FALSE);
// If old pgmgt.conf is used, _PGPOOL2_VERSION doen't exist.
// This defined var exists from pgpoolAdmin 3.2.
if (! defined('_PGPOOL2_VERSION')) {
$versions = versions();
define('_PGPOOL2_VERSION', $versions[0]);
}
/**
* Check pgmgt.conf.php Parameter
*/
$errors = array();
if (! defined('_PGPOOL2_LANG') ||
! defined('_PGPOOL2_VERSION') ||
! defined('_PGPOOL2_CONFIG_FILE') ||
! defined('_PGPOOL2_PASSWORD_FILE') ||
! defined('_PGPOOL2_COMMAND') ||
! defined('_PGPOOL2_PCP_DIR') ||
! defined('_PGPOOL2_PCP_HOSTNAME') ||
! defined('_PGPOOL2_STATUS_REFRESH_TIME'))
{
include('lang/en.lang.php');
errorPage('e7');
}
// PostgreSQL connect timeout, default is 10
if (! defined('_PGPOOL2_PG_CONNECT_TIMEOUT')) {
define('_PGPOOL2_PG_CONNECT_TIMEOUT', 10);
}
/**
* Create message catalog list
*/
$messageList = array();
$res_dir = opendir('lang/');
while ($file_name = readdir( $res_dir )) {
if (preg_match('/.*\.lang\.php$/', $file_name)) {
if (@is_file('lang/' . $file_name)) {
include('lang/' . $file_name);
$messageList[$message['lang']] = $message['strLang'];
} else {
errorPage('e2');
}
}
}
$tpl->assign('messageList', $messageList);
/**
* Load message catalog
*/
$lang = selectLanguage(_PGPOOL2_LANG, $messageList);
include('lang/' . $lang . '.lang.php');
$tpl->assign('message', $message);
$_SESSION[SESSION_MESSAGE] = $message;
/* --------------------------------------------------------------------- */
/* function (DB) */
/* --------------------------------------------------------------------- */
/**
* Open databse connection
*/
function openDBConnection($arr)
{
$conStr = generateConstr($arr);
$conn = @pg_connect($conStr);
return $conn;
}
/**
* Close database connection
*/
function closeDBConnection($connection)
{
return pg_close($connection);
}
/**
* Execute query
*/
function execQuery($conn, $sql)
{
$rs = @pg_query($conn, $sql);
if (!pg_result_status($rs) == PGSQL_TUPLES_OK) {
return FALSE;
}
return $rs;
}
/**
* Confirmation whether node is active or is not.
*/
function NodeActive($nodeNum)
{
$params = readConfigParams();
$perNodeParams = getPerNodeHealthCheck($nodeNum);
$conn = openDBConnection(array(
'host' => $params['backend_hostname'][$nodeNum],
'port' => $params['backend_port'][$nodeNum],
'dbname' => $perNodeParams['health_check_database'],
'user' => $perNodeParams['health_check_user'],
'password' => $perNodeParams['health_check_password'],
'connect_timeout' => _PGPOOL2_PG_CONNECT_TIMEOUT,
));
if ($conn == FALSE) {
return FALSE;
} else {
closeDBConnection($conn);
return TRUE;
}
}
/**
* Confirmation whether node is act as a standby server
*/
function NodeStandby($nodeNum)
{
if (hasBackendClusteringMode()){
$params = readConfigParams(array('backend_clustering_mode'));
if ($params['backend_clustering_mode'] != 'streaming_replication') {
return -1;
}
} else {
if (isMasterSlaveMode() == FALSE || useStreaming() == FALSE) {
return -1;
}
}
$params = readConfigParams(array(
'backend_hostname', 'backend_port',
'sr_check_user','sr_check_password'
));
$conn = openDBConnection(array(
'host' => $params['backend_hostname'][$nodeNum],
'port' => $params['backend_port'][$nodeNum],
'dbname' => 'template1',
'user' => $params['sr_check_user'],
'password' => $params['sr_check_password'],
'connect_timeout' => _PGPOOL2_PG_CONNECT_TIMEOUT,
));
if ($conn == FALSE) {
return -1;
}
$result = pg_query($conn, 'SELECT pg_is_in_recovery()');
if (! pg_result_status($result) == PGSQL_TUPLES_OK) {
closeDBConnection($conn);
return -1;
}
$rr = pg_fetch_array($result);
if ($rr[0][0] == 't') {
$r = 1;
} else {
$r = 0;
}
@pg_free_result($result);
closeDBConnection($conn);
return $r;
}
/**
* Get if loginUser is super user
*/
function isSuperUser($user_name)
{
$params = readConfigParams(array('port'));
// Try to connect the backend by login user
$conn = openDBConnection(array(
'host' => PGPOOLADMIN_HOST,
'port' => $params['port'],
'dbname' => 'template1',
'user' => $_SESSION[SESSION_LOGIN_USER],
'password' => $_SESSION[SESSION_LOGIN_USER_PASSWORD],
'connect_timeout' => _PGPOOL2_PG_CONNECT_TIMEOUT,
));
// Try to connect health check user
if ($conn === FALSE) {
$params = readConfigParams(array('port', 'health_check_user', 'health_check_password'));
$conn = openDBConnection(array(
'host' => PGPOOLADMIN_HOST,
'port' => $params['port'],
'dbname' => 'template1',
'user' => $params['health_check_user'],
'password' => $params['health_check_password'],
'connect_timeout' => _PGPOOL2_PG_CONNECT_TIMEOUT,
));
}
if ($conn === FALSE) { return NULL; }
$result = pg_query($conn, "SELECT usesuper FROM pg_user WHERE usename = '{$user_name}'");
if (! pg_result_status($result) == PGSQL_TUPLES_OK) {
closeDBConnection($conn);
return NULL;
}
$rr = pg_fetch_array($result);
$rtn = (isset($rr['usesuper']) && $rr['usesuper'] == 't') ? 'yes' : 'no';
@pg_free_result($result);
closeDBConnection($conn);
$_SESSION[SESSION_IS_SUPER_USER] = $rtn;
return $rtn;
}
/**
* Create connection str for pg_connect()
*/
function generateConstr($params)
{
$arr = array();
foreach ($params as $param => $value) {
if ($value == '') { continue; }
switch ($param) {
case 'host':
case 'port':
case 'dbname':
case 'user':
case 'password':
case 'connect_timeout':
$arr[] = "{$param}='{$value}'";
}
}
$conStr = implode(' ', $arr);
return $conStr;
}
/* --------------------------------------------------------------------- */
/* function (pgpool) */
/* --------------------------------------------------------------------- */
/**
* Check if pgpool.pid exists
*/
function DoesPgpoolPidExist()
{
$params = readConfigParams(array('pid_file_name'));
$pidFile = $params['pid_file_name'];
if (file_exists($pidFile) ) {
return TRUE;
}
return FALSE;
}
/* --------------------------------------------------------------------- */
/* function (parameters) */
/* --------------------------------------------------------------------- */
/**
* Get the value of "logdir"
*/
function readLogDir()
{
$params = readConfigParams(array('logdir'));
return $params['logdir'];
}
/**
* Read parameters specified in $paramList from pgpool.conf.
* If $paramList is not specified, all item is read from pgpool.conf.
*/
function readConfigParams($paramList = array())
{
$rtn = array();
global $pgpoolConfigParam, $pgpoolConfigBackendParam,
$pgpoolConfigWdOtherParam, $pgpoolConfigHbDestinationParam,
$pgpoolConfigWdNodeParam, $pgpoolConfigWdHbNodeParam;
// Try to read pgpool.conf
$configFile = @file(_PGPOOL2_CONFIG_FILE);
if ($configFile == FALSE) {
$errTpl = new Smarty();
$errTpl->assign('message', $_SESSION[SESSION_MESSAGE]);
errorPage('e4');
}
// Defined array in definePgpoolConfParam.php
$defines_arr = $pgpoolConfigParam + $pgpoolConfigBackendParam +
$pgpoolConfigWdOtherParam + $pgpoolConfigHbDestinationParam +
$pgpoolConfigWdNodeParam + $pgpoolConfigWdHbNodeParam;
$arr = array();
// Convert lines in files to array
foreach ($configFile as $line_num => $line) {
$line = trim($line);
if (substr($line, 0, 1) == '#' || strpos($line, '=') === FALSE) {
continue;
}
list($key, $value) = explode('=', $line);
// 設定ファイルのパラメータのキー
$key = trim($key);
switch ($key) {
case 'recovery_1st_stage_command':
case 'recovery_2nd_stage_command':
$key_wo_num = $key;
break;
default:
// In case of "health_check_*0", the number is left.
$num = preg_replace('/[^0-9]/', NULL, $key);
$key_wo_num = str_replace($num, NULL, $key);
break;
}
// Ignore params not specified to read
if ($paramList && is_array($paramList) && ! in_array($key_wo_num, $paramList)) {
continue;
}
// Remove quotes and comments
$value = trimValue($value);
// Change true/false to on/off
if ($value == 'true') {
$value = 'on';
} elseif ($value == 'false') {
$value = 'off';
}
if (! isset($defines_arr[$key_wo_num])) {
continue;
// Params with multiple values
// (backend_*, other_pgpool_*, heartbeat_destination_*, heartbeat_device*)
} elseif (isset($defines_arr[$key_wo_num]['multiple']) &&
$defines_arr[$key_wo_num]['multiple'] == TRUE)
{
$rtn[$key_wo_num][$num] = $value;
} else {
// Ignore param not defined definePgpoolConfParam.php
if (preg_match('/^(health_check|connect_time).*[0-9]$/', $key)) {
// In case of "health_check_*0", the number is left.
$rtn[$key] = $value;
} else {
$rtn[$key_wo_num] = $value;
}
}
}
// Set default value if there is no line about the param
if ($paramList && is_array($paramList)) {
foreach ($paramList as $key) {
if (! isset($rtn[$key]) || $rtn[$key] == NULL) {
$default_value = $defines_arr[$key]['default'];
if (isset($defines_arr[$key]['multiple']) &&
$defines_arr[$key]['multiple'])
{
$rtn[$key][0] = $default_value;
} else {
$rtn[$key] = $default_value;
}
}
}
} elseif ($defines_arr) {
foreach ($defines_arr as $key => $param_info) {
if (! isset($rtn[$key])) {
$default_value = (isset($defines_arr[$key]['default'])) ?
$defines_arr[$key]['default'] : NULL;
if (isset($defines_arr[$key]['multiple']) &&
$defines_arr[$key]['multiple'])
{
$rtn[$key][0] = $default_value;
} else {
$rtn[$key] = $default_value;
}
}
}
}
return $rtn;
}
function trimValue($text)
{
// Remove spaces
$text = trim($text);
$rtn = '';
$in_quotes = FALSE;
for ($i = 0; $i < strlen($text); $i++) {
$c = substr($text, $i, 1);
switch ($c) {
// Ignore "'"
case "'":
if ($in_quotes) {
break 2;
} else {
$in_quotes = TRUE;
}
break;
// Ignore "#" comment
case '#':
if (! $in_quotes) {
break;
}
break;
}
$rtn .= $c;
}
$rtn = trim($rtn, "'");
return $rtn;
}
/**
* Select language registred in conf directory
*/
function selectLanguage($selectLang, $messageList)
{
if ($selectLang == NULL || $selectLang == 'auto') {
if(isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
$acceptLanguages = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
} else {
$acceptLanguages = FALSE;
}
$lang = NULL;
if ($acceptLanguages == FALSE) {
$lang = 'en';
} else {
$langList = explode(',|;', $acceptLanguages);
foreach ($langList as $acceptLanguage) {
foreach (array_keys($messageList) as $messageLanguage) {
if ($acceptLanguage == $messageLanguage ) {
$lang = $messageLanguage;
break;
}
}
if ($lang != NULL) { break; }
}
}
} else {
$lang = $selectLang;
}
$_SESSION[SESSION_LANG] = $lang;
return $lang;
}
/**
* Check if the parameter is used in the specified version
*/
function paramExists($param)
{
$add_version = $del_version = 0;
/* Add */
switch ($param) {
// params added in 4.2
case 'backend_clustering_mode':
case 'ssl_crl_file':
case 'ssl_passphrase_command':
case 'log_disconnections':
case 'logging_collector':
case 'log_directory':
case 'log_filename':
case 'log_file_mode':
case 'log_truncate_on_rotation':
case 'log_rotation_age':
case 'log_rotation_size':
case 'read_only_function_list':
case 'write_function_list':
case 'primary_routing_query_pattern_list':
case 'dml_adaptive_object_relationship_list':
case 'hostname':
case 'pgpool_port':
case 'heartbeat_hostname':
case 'heartbeat_port':
case 'cache_safe_memqcache_table_list':
case 'cache_unsafe_memqcache_table_list':
$add_version = 4.2;
break;
// params added in 4.1
case 'reserved_connections':
case 'backend_application_name':
case 'ssl_ecdh_curve':
case 'ssl_dh_params_file':
case 'statement_level_load_balance':
case 'auto_failback':
case 'auto_failback_interval':
case 'enable_consensus_with_half_votes':
case 'enable_shared_relcache':
case 'relcache_query_target':
$add_version = 4.1;
break;
// params added in 4.0
case 'allow_clear_text_frontend_auth':
case 'log_client_messages':
case 'black_query_pattern_list':
case 'disable_load_balance_on_write':
case 'failover_on_backend_error':
case 'detach_false_primary':
case 'ssl_ciphers':
case 'ssl_prefer_server_ciphers':
$add_version = 4.0;
break;
// params added in 3.7
case 'failover_when_quorum_exists':
case 'failover_require_consensus':
case 'allow_multiple_failover_requests_from_node':
case 'health_check_period0':
case 'health_check_timeout0':
case 'health_check_user0':
case 'health_check_password0':
case 'health_check_database0':
case 'health_check_max_retries0':
case 'health_check_retry_delay0':
case 'connect_timeout0':
$add_version = 3.7;
break;
// params added in 3.5
case 'if_cmd_path':
case 'health_check_database':
case 'pcp_listen_addresses':
case 'search_primary_node_timeout':
case 'serialize_accept':
case 'sr_check_database':
case 'wd_de_escalation_command':
case 'wd_ipc_socket_dir':
case 'wd_monitoring_interfaces_list':
case 'wd_priority':
$add_version = 3.5;
break;
// params added in 3.4
case 'listen_backlog_multiplier':
case 'app_name_redirect_preference_list':
case 'database_redirect_preference_list':
case 'allow_sql_comments':
case 'log_error_verbosity':
case 'client_min_messages':
case 'log_min_messages':
case 'log_line_prefix':
case 'connect_timeout':
case 'check_unlogged_table':
$add_version = 3.4;
break;
// params added in 3.3
case 'clear_memqcache_on_escalation':
case 'heartbeat_destination':
case 'heartbeat_destination_port':
case 'heartbeat_device':
case 'wd_authkey':
case 'wd_escalation_command':
case 'wd_lifecheck_method':
case 'wd_heartbeat_port':
case 'wd_heartbeat_keepalive':
case 'wd_heartbeat_deadtime':
case 'wd_lifecheck_dbname':
case 'wd_lifecheck_user':
case 'wd_lifecheck_password':
$add_version = 3.3;
break;
// params added in 3.2
case 'health_check_max_retries':
case 'health_check_retry_delay':
case 'use_watchdog':
case 'trusted_servers':
case 'delegate_IP':
case 'wd_hostname':
case 'wd_port':
case 'wd_interval':
case 'ping_path':
case 'ifconfig_path':
case 'if_up_cmd':
case 'if_down_cmd':
case 'arping_path':
case 'arping_cmd':
case 'wd_life_point':
case 'wd_lifecheck_query':
case 'memory_cache_enabled':
case 'memqcache_method':
case 'memqcache_memcached_host':
case 'memqcache_memcached_port':
case 'memqcache_total_size':
case 'memqcache_max_num_cache':
case 'memqcache_expire':
case 'memqcache_auto_cache_invalidation':
case 'memqcache_maxcache':
case 'memqcache_cache_block_size':
case 'memqcache_oiddir':
case 'white_memqcache_table_lsit':
case 'black_memqcache_table_list':
case 'relcache_size':
case 'check_temp_table':
$add_version = 3.2;
break;
// params added in 3.1
case 'follow_master_command':
case 'log_destination':
case 'syslog_facility':
case 'syslog_ident':
case 'debug_level':
case 'sr_check_period':
case 'sr_check_user':
case 'sr_check_password':
case 'health_check_password':
case 'relcache_expire':
case 'backend_flag':
$add_version = 3.1;
break;
// params added in 3.0
case 'pool_passwd':
case 'master_slave_sub_mode':
case 'delay_threshold':
case 'log_standby_delay':
case 'debug_level':
case 'failover_if_affected_tuples_mismatch':
case 'white_function_list':
case 'black_function_list':
$add_version = 3.0;
break;
// params added in 2.3
case 'fail_over_on_backend_error':
case 'log_per_node_statement':
case 'lobj_lock_table':
case 'ssl':
case 'ssl_key':
case 'ssl_cert':
case 'ssl_ca_cert':
case 'ssl_ca_cert_dir':
$add_version = 2.3;
break;
// params added in 2.2
case 'pid_file_name':
case 'client_idle_limit_in_recovery':
$add_version = 2.2;
break;
}
/* Delete */
switch ($param) {
// params deleted in 4.2
case 'replication_mode':
case 'master_slave_mode':
case 'master_slave_sub_mode':
case 'white_function_list':
case 'black_function_list':
case 'black_query_pattern_list':
case 'wd_hostname':
case 'wd_port':
case 'wd_heartbeat_port':
case 'heartbeat_destination':
case 'heartbeat_destination_port':
case 'white_memqcache_table_list':
case 'black_memqcache_table_list':
case 'other_pgpool_hostname':
case 'other_pgpool_port':
case 'other_wd_port':
$del_version = 4.2;
break;
// params deleted in 4.0
case 'fail_over_on_backend_error':
$del_version = 4.0;
break;
// params deleted in 3.7
case 'debug_level':
$del_version = 3.7;
break;
// params deleted in 3.5
case 'ifconfig_path':
$del_version = 3.5;
break;
// params deleted in 3.4
case 'print_timestamp':
case 'parallel_mode':
case 'system_db_hostname':
case 'system_db_port':
case 'system_db_dbname':
case 'system_db_schema':
case 'system_db_user':
case 'system_db_password':
$del_version = 3.4;
break;
// params deleted in 3.2
case 'enable_query_cache':
$del_version = 3.2;
break;
// params deleted in 3.0
case 'backend_socket_dir':
$del_version = 3.0;
break;
// params deleted in 2.1
case 'replication_timeout':
$del_version = 2.1;
break;
}
$rtn = TRUE;
if ($add_version && _PGPOOL2_VERSION < $add_version) {
$rtn = FALSE;
}
if ($del_version && $del_version <= _PGPOOL2_VERSION) {
$rtn = FALSE;
}
return $rtn;
}
function getPerNodeHealthCheck($nodeNum){
$rtn = array();
$params = readConfigParams();
$period = $params['health_check_period'];
if(isset($params['health_check_period' . $nodeNum])
&& $params['health_check_period' . $nodeNum] != '')
{
$period = $params['health_check_period' . $nodeNum];
}
$timeout = $params['health_check_timeout'];
if(isset($params['health_check_timeout' . $nodeNum])
&& $params['health_check_timeout' . $nodeNum] != '')
{
$timeout = $params['health_check_timeout' . $nodeNum];
}
$user = $params['health_check_user'];
if(isset($params['health_check_user' . $nodeNum])
&& $params['health_check_user' . $nodeNum] != '')
{
$user = $params['health_check_user' . $nodeNum];
}
$password = $params['health_check_password'];
if(isset($params['health_check_password' . $nodeNum])
&& $params['health_check_password' . $nodeNum] != '')
{
$password = $params['health_check_password' . $nodeNum];
}
$database = 'template1';
if(isset($params['health_check_database' . $nodeNum])
&& $params['health_check_database' . $nodeNum] != '')
{
$database = $params['health_check_database' . $nodeNum];
}else{
$database = ($params['health_check_database'] != '') ?
$params['health_check_database'] : 'template1';
}
$max_retries = $params['health_check_max_retries'];
if(isset($params['health_check_max_retries' . $nodeNum])
&& $params['health_check_max_retries' . $nodeNum] != '')
{
$max_retries = $params['health_check_max_retries' . $nodeNum];
}
$retry_delay = $params['health_check_retry_delay'];
if(isset($params['health_check_retry_delay' . $nodeNum])
&& $params['health_check_retry_delay' . $nodeNum] != '')
{
$retry_delay = $params['health_check_retry_delay' . $nodeNum];
}
$connect_timeout = $params['connect_timeout'];
if(isset($params['connect_timeout' . $nodeNum])
&& $params['connect_timeout' . $nodeNum] != '')
{
$connect_timeout = $params['connect_timeout' . $nodeNum];
}
$rtn = array(
'health_check_period' => $period,
'health_check_timeout' => $timeout,
'health_check_user' => $user,
'health_check_password' => $password,
'health_check_database' => $database,
'health_check_max_retries' => $max_retries,
'connect_timeout' => $connect_timeout,
'health_check_retry_delay' => $retry_delay
);
return $rtn;
}
/* --------------------------------------------------------------------- */
/* function (mode) */
/* --------------------------------------------------------------------- */
function versions()
{
return array('4.2', '4.1', '4.0', '3.7', '3.6', '3.5', '3.4', '3.3', '3.2', '3.1', '3.0',
'2.3', '2.2', '2.1', '2.0');
}
/**
* Whether pgpool is operating in the replication mode or not?
*/
function isReplicationMode()
{
if (hasBackendClusteringMode()){
$params = readConfigParams(array('backend_clustering_mode'));
if ($params['backend_clustering_mode'] == 'native_replication_mode'){
return TRUE;
} else {
return FALSE;
}
} else {
$params = readConfigParams(array('replication_mode'));
if (isTrue($params['replication_mode'])) {
return TRUE;
} else {
return FALSE;
}
}
}
/**
* Whether pgpool is operating in the master slave mode or not?
*/
function isMasterSlaveMode()
{
if (hasBackendClusteringMode()){
$params = readConfigParams(array('backend_clustering_mode'));
if ($params['backend_clustering_mode'] == 'streaming_replication'
|| $params['backend_clustering_mode'] == 'logical_replication'
|| $params['backend_clustering_mode'] == 'slony') {
return TRUE;
} else {
return FALSE;
}
} else {
$params = readConfigParams(array('master_slave_mode'));
if (isTrue($params['master_slave_mode'])) {
return TRUE;
} else {
return FALSE;
}
}
}
/**
* Whether pgpool is operating in the parallel mode or not?
*/
function isParallelMode()
{
$params = readConfigParams(array('parallel_mode'));
if (isTrue($params['parallel_mode'])) {
return TRUE;
} else {
return FALSE;
}
}
/**
* Whether pgpool is using stream sub mode in master slave mode or not?
*/
function useStreaming()
{
$params = readConfigParams(array('master_slave_sub_mode'));
if (isMasterSlaveMode() && $params['master_slave_sub_mode'] == 'stream') {
return TRUE;
} else {
return FALSE;
}
}
/**
* Whether pgpool uses syslog or not?
*/
function useSyslog()
{
if (!paramExists('log_destination')) { return FALSE; }
$params = readConfigParams(array('log_destination'));
if ($params['log_destination'] == 'syslog') {
return TRUE;
} else {
return FALSE;
}
}
/**
* Return if pgpool has Backend Clustering Mode
*/
function hasBackendClusteringMode()
{
return (4.2 <= _PGPOOL2_VERSION);
}
/**
* Return if pgpool has watchdog feature
*/
function hasWatchdog()
{
return (3.2 <= _PGPOOL2_VERSION);
}
/**
* Return if pgpool has memqcache
*/
function hasMemqcache()
{
return (3.2 <= _PGPOOL2_VERSION);
}
/**
* Return if pgpool has pcp_promote_node ?
*/
function hasPcpPromote()