Failed:access denied for user ' root ' @ ' localhost ' (using Password:yes) At/usr/bin/innobackupex Lin

[Root@t1/]# Innobackupex--user=root--password/mydata/data/tmp/dir/


InnoDB Backup Utility v1.5.1-xtrabackup; Copyright 2003, 2009 Innobase Oy
and Percona LLC and/or its affiliates 2009-2013. All Rights Reserved.


This software is published under
The GNU general public LICENSE Version 2, June 1991.


Get the latest version of Percona Xtrabackup, documentation, and help:
http://www.percona.com/xb/p


160309 07:09:49 innobackupex:executing A version check against the server ...
160309 07:09:49 innobackupex:connecting to MySQL server with DSN ' dbi:mysql:;mysql_read_default_group=xtrabackup ' as ' ro OT ' (using Password:yes).
Innobackupex:got a fatal error with the following Stacktrace:at/usr/bin/innobackupex line 3011
Main::mysql_connect (' Abort_on_error ', 1) called At/usr/bin/innobackupex Line 1551
innobackupex:Error:Failed to connect to MySQL server:dbi connect ('; Mysql_read_default_group=xtrabackup ', ' Root ',...) Failed:access denied for user ' root ' @ ' localhost ' (using Password:yes) At/usr/bin/innobackupex line 2995
160309 07:09:49 innobackupex:connecting to MySQL server with DSN ' dbi:mysql:;mysql_read_default_group=xtrabackup ' as ' ro OT ' (using Password:yes).
Innobackupex:got a fatal error with the following Stacktrace:at/usr/bin/innobackupex line 3011
Main::mysql_connect (' Abort_on_error ', 1) called At/usr/bin/innobackupex Line 1570
innobackupex:Error:Failed to connect to MySQL server:dbi connect ('; Mysql_read_default_group=xtrabackup ', ' Root ',...) Failed:access denied for user ' root ' @ ' localhost ' (using Password:yes) At/usr/bin/innobackupex line 2995

[Root@t1/]# mysqladmin-uroot-p password ' jsb ' Enter password:
Mysqladmin:connect to server at ' localhost ' failed

Error: ' Access denied for user ' root ' localhost ' (using Password:yes) '

Solve:

[Root@t1/]#/etc/init.d/mysql stop
-bash:/etc/init.d/mysql:no such file or directory
[Root@t1/]#/etc/init.d/mysqld Stop
Shutting down MySQL .... success!
[Root@t1/]# mysqld_safe--user=mysql--skip-grant-tables--skip-networking &
[1] 12693
[Root@t1/]# 160309 07:11:26 mysqld_safe Logging to '/mydata/data/t1.err '.
160309 07:11:26 Mysqld_safe starting mysqld daemon with databases From/mydata/data


[root@t1/]# mysql-u root MySQL
Reading table information for completion of table and column names
You can turn off the feature to get a quicker startup with-a


Welcome to the MySQL Monitor. Commands End With; or \g.
Your MySQL Connection ID is 1
Server Version:5.6.10-log MySQL Community Server (GPL)


Copyright (c), 2013, Oracle and/or its affiliates. All rights reserved.


Oracle is a registered trademark the Oracle Corporation and/or its
Affiliates. Names may trademarks of their respective
Owners.


Type ' help, ' or ' \h ' for help. Type ' \c ' to clear the current input statement.


mysql> UPDATE user SET Password=password (' JSB ') where user= ' root ';
Query OK, 4 rows affected (0.01 sec)
Rows Matched:4 Changed:4 warnings:0


mysql> FLUSH privileges;
Query OK, 0 rows Affected (0.00 sec)


Mysql> quit
Bye

[Root@t1/]#/etc/init.d/mysqld Restart

Shutting down MySQL. 160309 07:12:49 mysqld_safe mysqld from PID File/mydata/data/t1.pid ended
success!
Starting MySQL. success!
[1]+ done Mysqld_safe--user=mysql--skip-grant-tables--skip-networking
[Root@t1/]# MYSQL-UROOT-PJSB
Warning:using a password on the command line interface can is insecure.
Welcome to the MySQL Monitor. Commands End With; or \g.
Your MySQL Connection ID is 1
Server Version:5.6.10-log MySQL Community Server (GPL)


Copyright (c), 2013, Oracle and/or its affiliates. All rights reserved.


Oracle is a registered trademark the Oracle Corporation and/or its
Affiliates. Names may trademarks of their respective
Owners.


Type ' help, ' or ' \h ' for help. Type ' \c ' to clear the current input statement.


Mysql> exit
Bye