Initial commit
This commit is contained in:
322
#pma/libraries/replication.inc.php
Normal file
322
#pma/libraries/replication.inc.php
Normal file
@ -0,0 +1,322 @@
|
||||
<?php
|
||||
/* vim: set expandtab sw=4 ts=4 sts=4: */
|
||||
/**
|
||||
* Replication helpers
|
||||
*
|
||||
* @package PhpMyAdmin
|
||||
*/
|
||||
|
||||
if (! defined('PHPMYADMIN')) {
|
||||
exit;
|
||||
}
|
||||
|
||||
/**
|
||||
* get master replication from server
|
||||
*/
|
||||
$server_master_replication = $GLOBALS['dbi']->fetchResult('SHOW MASTER STATUS');
|
||||
|
||||
/**
|
||||
* set selected master server
|
||||
*/
|
||||
if (! empty($_REQUEST['master_connection'])) {
|
||||
/**
|
||||
* check for multi-master replication functionality
|
||||
*/
|
||||
$server_slave_multi_replication = $GLOBALS['dbi']->fetchResult(
|
||||
'SHOW ALL SLAVES STATUS'
|
||||
);
|
||||
if ($server_slave_multi_replication) {
|
||||
$GLOBALS['dbi']->query(
|
||||
"SET @@default_master_connection = '"
|
||||
. $GLOBALS['dbi']->escapeString(
|
||||
$_REQUEST['master_connection']
|
||||
) . "'"
|
||||
);
|
||||
$GLOBALS['url_params']['master_connection'] = $_REQUEST['master_connection'];
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* get slave replication from server
|
||||
*/
|
||||
$server_slave_replication = $GLOBALS['dbi']->fetchResult('SHOW SLAVE STATUS');
|
||||
|
||||
/**
|
||||
* replication types
|
||||
*/
|
||||
$replication_types = array('master', 'slave');
|
||||
|
||||
|
||||
/**
|
||||
* define variables for master status
|
||||
*/
|
||||
$master_variables = array(
|
||||
'File',
|
||||
'Position',
|
||||
'Binlog_Do_DB',
|
||||
'Binlog_Ignore_DB',
|
||||
);
|
||||
|
||||
/**
|
||||
* Define variables for slave status
|
||||
*/
|
||||
$slave_variables = array(
|
||||
'Slave_IO_State',
|
||||
'Master_Host',
|
||||
'Master_User',
|
||||
'Master_Port',
|
||||
'Connect_Retry',
|
||||
'Master_Log_File',
|
||||
'Read_Master_Log_Pos',
|
||||
'Relay_Log_File',
|
||||
'Relay_Log_Pos',
|
||||
'Relay_Master_Log_File',
|
||||
'Slave_IO_Running',
|
||||
'Slave_SQL_Running',
|
||||
'Replicate_Do_DB',
|
||||
'Replicate_Ignore_DB',
|
||||
'Replicate_Do_Table',
|
||||
'Replicate_Ignore_Table',
|
||||
'Replicate_Wild_Do_Table',
|
||||
'Replicate_Wild_Ignore_Table',
|
||||
'Last_Errno',
|
||||
'Last_Error',
|
||||
'Skip_Counter',
|
||||
'Exec_Master_Log_Pos',
|
||||
'Relay_Log_Space',
|
||||
'Until_Condition',
|
||||
'Until_Log_File',
|
||||
'Until_Log_Pos',
|
||||
'Master_SSL_Allowed',
|
||||
'Master_SSL_CA_File',
|
||||
'Master_SSL_CA_Path',
|
||||
'Master_SSL_Cert',
|
||||
'Master_SSL_Cipher',
|
||||
'Master_SSL_Key',
|
||||
'Seconds_Behind_Master',
|
||||
);
|
||||
/**
|
||||
* define important variables, which need to be watched for
|
||||
* correct running of replication in slave mode
|
||||
*
|
||||
* @usedby PMA_getHtmlForReplicationStatusTable()
|
||||
*/
|
||||
// TODO change to regexp or something, to allow for negative match.
|
||||
// To e.g. highlight 'Last_Error'
|
||||
//
|
||||
$slave_variables_alerts = array(
|
||||
'Slave_IO_Running' => 'No',
|
||||
'Slave_SQL_Running' => 'No',
|
||||
);
|
||||
$slave_variables_oks = array(
|
||||
'Slave_IO_Running' => 'Yes',
|
||||
'Slave_SQL_Running' => 'Yes',
|
||||
);
|
||||
|
||||
// check which replication is available and
|
||||
// set $server_{master/slave}_status and assign values
|
||||
|
||||
// replication info is more easily passed to functions
|
||||
$GLOBALS['replication_info'] = array();
|
||||
|
||||
foreach ($replication_types as $type) {
|
||||
if (count(${"server_{$type}_replication"}) > 0) {
|
||||
$GLOBALS['replication_info'][$type]['status'] = true;
|
||||
} else {
|
||||
$GLOBALS['replication_info'][$type]['status'] = false;
|
||||
}
|
||||
if ($GLOBALS['replication_info'][$type]['status']) {
|
||||
if ($type == "master") {
|
||||
PMA_fillReplicationInfo(
|
||||
$type, 'Do_DB', $server_master_replication[0],
|
||||
'Binlog_Do_DB'
|
||||
);
|
||||
|
||||
PMA_fillReplicationInfo(
|
||||
$type, 'Ignore_DB', $server_master_replication[0],
|
||||
'Binlog_Ignore_DB'
|
||||
);
|
||||
} elseif ($type == "slave") {
|
||||
PMA_fillReplicationInfo(
|
||||
$type, 'Do_DB', $server_slave_replication[0],
|
||||
'Replicate_Do_DB'
|
||||
);
|
||||
|
||||
PMA_fillReplicationInfo(
|
||||
$type, 'Ignore_DB', $server_slave_replication[0],
|
||||
'Replicate_Ignore_DB'
|
||||
);
|
||||
|
||||
PMA_fillReplicationInfo(
|
||||
$type, 'Do_Table', $server_slave_replication[0],
|
||||
'Replicate_Do_Table'
|
||||
);
|
||||
|
||||
PMA_fillReplicationInfo(
|
||||
$type, 'Ignore_Table', $server_slave_replication[0],
|
||||
'Replicate_Ignore_Table'
|
||||
);
|
||||
|
||||
PMA_fillReplicationInfo(
|
||||
$type, 'Wild_Do_Table', $server_slave_replication[0],
|
||||
'Replicate_Wild_Do_Table'
|
||||
);
|
||||
|
||||
PMA_fillReplicationInfo(
|
||||
$type, 'Wild_Ignore_Table', $server_slave_replication[0],
|
||||
'Replicate_Wild_Ignore_Table'
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Fill global replication_info variable.
|
||||
*
|
||||
* @param string $type Type: master, slave
|
||||
* @param string $replicationInfoKey Key in replication_info variable
|
||||
* @param array $mysqlInfo MySQL data about replication
|
||||
* @param string $mysqlKey MySQL key
|
||||
*
|
||||
* @return array
|
||||
*/
|
||||
function PMA_fillReplicationInfo(
|
||||
$type, $replicationInfoKey, $mysqlInfo, $mysqlKey
|
||||
) {
|
||||
$GLOBALS['replication_info'][$type][$replicationInfoKey]
|
||||
= empty($mysqlInfo[$mysqlKey])
|
||||
? array()
|
||||
: explode(
|
||||
",",
|
||||
$mysqlInfo[$mysqlKey]
|
||||
);
|
||||
|
||||
return $GLOBALS['replication_info'][$type][$replicationInfoKey];
|
||||
}
|
||||
|
||||
/**
|
||||
* Extracts database or table name from string
|
||||
*
|
||||
* @param string $string contains "dbname.tablename"
|
||||
* @param string $what what to extract (db|table)
|
||||
*
|
||||
* @return string the extracted part
|
||||
*/
|
||||
function PMA_extractDbOrTable($string, $what = 'db')
|
||||
{
|
||||
$list = explode(".", $string);
|
||||
if ('db' == $what) {
|
||||
return $list[0];
|
||||
} else {
|
||||
return $list[1];
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Configures replication slave
|
||||
*
|
||||
* @param string $action possible values: START or STOP
|
||||
* @param string $control default: null,
|
||||
* possible values: SQL_THREAD or IO_THREAD or null.
|
||||
* If it is set to null, it controls both
|
||||
* SQL_THREAD and IO_THREAD
|
||||
* @param mixed $link mysql link
|
||||
*
|
||||
* @return mixed output of DatabaseInterface::tryQuery
|
||||
*/
|
||||
function PMA_Replication_Slave_control($action, $control = null, $link = null)
|
||||
{
|
||||
$action = mb_strtoupper($action);
|
||||
$control = mb_strtoupper($control);
|
||||
|
||||
if ($action != "START" && $action != "STOP") {
|
||||
return -1;
|
||||
}
|
||||
if ($control != "SQL_THREAD" && $control != "IO_THREAD" && $control != null) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
return $GLOBALS['dbi']->tryQuery($action . " SLAVE " . $control . ";", $link);
|
||||
}
|
||||
|
||||
/**
|
||||
* Changes master for replication slave
|
||||
*
|
||||
* @param string $user replication user on master
|
||||
* @param string $password password for the user
|
||||
* @param string $host master's hostname or IP
|
||||
* @param int $port port, where mysql is running
|
||||
* @param array $pos position of mysql replication,
|
||||
* array should contain fields File and Position
|
||||
* @param bool $stop shall we stop slave?
|
||||
* @param bool $start shall we start slave?
|
||||
* @param mixed $link mysql link
|
||||
*
|
||||
* @return string output of CHANGE MASTER mysql command
|
||||
*/
|
||||
function PMA_Replication_Slave_changeMaster($user, $password, $host, $port,
|
||||
$pos, $stop = true, $start = true, $link = null
|
||||
) {
|
||||
if ($stop) {
|
||||
PMA_Replication_Slave_control("STOP", null, $link);
|
||||
}
|
||||
|
||||
$out = $GLOBALS['dbi']->tryQuery(
|
||||
'CHANGE MASTER TO ' .
|
||||
'MASTER_HOST=\'' . $host . '\',' .
|
||||
'MASTER_PORT=' . ($port * 1) . ',' .
|
||||
'MASTER_USER=\'' . $user . '\',' .
|
||||
'MASTER_PASSWORD=\'' . $password . '\',' .
|
||||
'MASTER_LOG_FILE=\'' . $pos["File"] . '\',' .
|
||||
'MASTER_LOG_POS=' . $pos["Position"] . ';', $link
|
||||
);
|
||||
|
||||
if ($start) {
|
||||
PMA_Replication_Slave_control("START", null, $link);
|
||||
}
|
||||
|
||||
return $out;
|
||||
}
|
||||
|
||||
/**
|
||||
* This function provides connection to remote mysql server
|
||||
*
|
||||
* @param string $user mysql username
|
||||
* @param string $password password for the user
|
||||
* @param string $host mysql server's hostname or IP
|
||||
* @param int $port mysql remote port
|
||||
* @param string $socket path to unix socket
|
||||
*
|
||||
* @return mixed $link mysql link on success
|
||||
*/
|
||||
function PMA_Replication_connectToMaster(
|
||||
$user, $password, $host = null, $port = null, $socket = null
|
||||
) {
|
||||
$server = array();
|
||||
$server["host"] = PMA_sanitizeMySQLHost($host);
|
||||
$server["port"] = $port;
|
||||
$server["socket"] = $socket;
|
||||
|
||||
// 5th parameter set to true means that it's an auxiliary connection
|
||||
// and we must not go back to login page if it fails
|
||||
return $GLOBALS['dbi']->connect($user, $password, false, $server, true);
|
||||
}
|
||||
/**
|
||||
* Fetches position and file of current binary log on master
|
||||
*
|
||||
* @param mixed $link mysql link
|
||||
*
|
||||
* @return array an array containing File and Position in MySQL replication
|
||||
* on master server, useful for PMA_Replication_Slave_changeMaster
|
||||
*/
|
||||
function PMA_Replication_Slave_binLogMaster($link = null)
|
||||
{
|
||||
$data = $GLOBALS['dbi']->fetchResult('SHOW MASTER STATUS', null, null, $link);
|
||||
$output = array();
|
||||
|
||||
if (! empty($data)) {
|
||||
$output["File"] = $data[0]["File"];
|
||||
$output["Position"] = $data[0]["Position"];
|
||||
}
|
||||
return $output;
|
||||
}
|
||||
Reference in New Issue
Block a user