MySQLStudy之--PerconaServer版本_MySQL
Percona 为 MySQL 数据库服务器进行了改进，在功能和性能上较 MySQL 有着很显著的提升。该版本提升了在高负载情况下的 InnoDB 的性能、为 DBA 提供一些非常有用的性能诊断工具；另外有更多的参数和命令来控制服务器行为。
2、特点 Percona Server 只包含 MySQL 的服务器版，并没有提供相应对 MySQL 的 Connector 和 GUI 工具进行改进。
Percona Server 使用了一些 google-mysql-tools, Proven Scaling, Open Query 对 MySQL 进行改造。
3、版本发布 2012年08月15日，Percona Server 5.6 Alpha 发布。
2012年08月23日，Percona Server 5.5.27-28.0 发布。
2013年04月11日，Percona Server for MySQL 5.5.30-30.2 发布
案例分析：Percona-Server 安装
下载：https://www.percona.com/downloads/Percona-Server-5.6/
一、安装Percona-Server [root@mysql2 soft]# ls -l
total 101016
-rwxr--r-- 1 oracle oinstall 1593932 Aug 11 11:19 openssl-1.0.1e-42.el6.x86_64.rpm
-rwxr--r-- 1 oracle oinstall 969444 Aug 11 10:51 openssl-libs-1.0.1e-42.el7.x86_64.rpm
-rwxr--r-- 1 oracle oinstall 70389368 Aug 11 10:30 Percona-Server-56-debuginfo-5.6.25-rel73.1.el6.x86_64.rpm
-rwxr--r-- 1 oracle oinstall 6727084 Aug 10 17:18 Percona-Server-client-56-5.6.25-rel73.1.el6.x86_64.rpm
-rwxr--r-- 1 oracle oinstall 1031588 Aug 10 17:12 Percona-Server-devel-56-5.6.25-rel73.1.el6.x86_64.rpm
-rwxr--r-- 1 oracle oinstall 20463420 Aug 10 17:20 Percona-Server-server-56-5.6.25-rel73.1.el6.x86_64.rpm
-rwxr--r-- 1 oracle oinstall 742496 Aug 11 10:08 Percona-Server-shared-56-5.6.25-rel73.1.el6.x86_64.rpm
-rwxr--r-- 1 oracle oinstall 1508480 Aug 11 10:08 Percona-Server-tokudb-56-5.6.25-rel73.1.el6.x86_64.rpm
安装顺序： 1、 Percona-Server-shared-56-5.6.25-rel73.1.el6.x86_64.rpm 2、Percona-Server-client-56-5.6.25-rel73.1.el6.x86_64.rpm 3、Percona-Server-server-56-5.6.25-rel73.1.el6.x86_64.rpm
1、安装Percona-Server-shared [root@mysql2 soft]# rpm -vih Percona-Server-shared-56-5.6.25-rel73.1.el6.x86_64.rpm
warning: Percona-Server-shared-56-5.6.25-rel73.1.el6.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID cd2efd2a: NOKEY
Preparing... ########################################### [100%]
1:Percona-Server-shared-5########################################### [100%]
2、安装Percona-Server-client
[root@mysql2 soft]# rpm -vih Percona-Server-client-56-5.6.25-rel73.1.el6.x86_64.rpm
warning: Percona-Server-client-56-5.6.25-rel73.1.el6.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID cd2efd2a: NOKEY
error: Failed dependencies:
MySQL conflicts with mysql-5.1.66-2.el6_3.x86_64 ---和原来系统安装的mysql-server冲突
卸载mysql-server： [root@mysql2 soft]# rpm -qa |grep mysql
mysql-devel-5.1.66-2.el6_3.x86_64
mysql-libs-5.1.66-2.el6_3.x86_64
mysql-5.1.66-2.el6_3.x86_64
qt-mysql-4.6.2-25.el6.x86_64
mysql-server-5.1.66-2.el6_3.x86_64
[root@mysql2 soft]# rpm -e mysql-devel-5.1.66-2.el6_3.x86_64
[root@mysql2 soft]# rpm -e mysql-server-5.1.66-2.el6_3.x86_64 --nodeps
[root@mysql2 soft]# rpm -e mysql-5.1.66-2.el6_3.x86_64
[root@mysql2 soft]# rpm -vih Percona-Server-client-56-5.6.25-rel73.1.el6.x86_64.rpm --force
warning: Percona-Server-client-56-5.6.25-rel73.1.el6.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID cd2efd2a: NOKEY
Preparing... ########################################### [100%]
1:Percona-Server-client-5########################################### [100%]
3、安装Percona-Server-server
[root@mysql2 soft]# rpm -vih Percona-Server-server-56-5.6.25-rel73.1.el6.x86_64.rpm
warning: Percona-Server-server-56-5.6.25-rel73.1.el6.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID cd2efd2a: NOKEY
Preparing... ########################################### [100%]
1:Percona-Server-server-5########################################### [100%]
/usr/bin/my_print_defaults: /usr/lib/libcrypto.so.10: no version information available (required by /usr/bin/my_print_defaults)
/usr/bin/my_print_defaults: /usr/lib/libcrypto.so.10: no version information available (required by /usr/bin/my_print_defaults)
/usr/sbin/mysqld: /usr/lib/libssl.so.10: no version information available (required by /usr/sbin/mysqld)
/usr/sbin/mysqld: /usr/lib/libcrypto.so.10: no version information available (required by /usr/sbin/mysqld)
2015-08-11 11:24:39 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2015-08-11 11:24:39 0 [Note] /usr/sbin/mysqld (mysqld 5.6.25-73.1) starting as process 7142 ...
2015-08-11 11:24:39 7142 [Note] InnoDB: Using atomics to ref count buffer pool pages
2015-08-11 11:24:39 7142 [Note] InnoDB: The InnoDB memory heap is disabled
2015-08-11 11:24:39 7142 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2015-08-11 11:24:39 7142 [Note] InnoDB: Memory barrier is not used
2015-08-11 11:24:39 7142 [Note] InnoDB: Compressed tables use zlib 1.2.3
2015-08-11 11:24:39 7142 [Note] InnoDB: Using Linux native AIO
2015-08-11 11:24:39 7142 [Note] InnoDB: Not using CPU crc32 instructions
2015-08-11 11:24:39 7142 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2015-08-11 11:24:39 7142 [Note] InnoDB: Completed initialization of buffer pool
2015-08-11 11:24:40 7142 [Note] InnoDB: The first specified data file ./ibdata1 did not exist: a new database to be created!
2015-08-11 11:24:40 7142 [Note] InnoDB: Setting file ./ibdata1 size to 12 MB
2015-08-11 11:24:40 7142 [Note] InnoDB: Database physically writes the file full: wait...
2015-08-11 11:24:40 7142 [Note] InnoDB: Setting log file ./ib_logfile101 size to 48 MB
2015-08-11 11:24:41 7142 [Note] InnoDB: Setting log file ./ib_logfile1 size to 48 MB
2015-08-11 11:24:41 7142 [Note] InnoDB: Renaming log file ./ib_logfile101 to ./ib_logfile0
2015-08-11 11:24:41 7142 [Warning] InnoDB: New log files created, LSN=45781
2015-08-11 11:24:41 7142 [Note] InnoDB: Doublewrite buffer not found: creating new
2015-08-11 11:24:41 7142 [Note] InnoDB: Doublewrite buffer created
2015-08-11 11:24:41 7142 [Note] InnoDB: 128 rollback segment(s) are active.
2015-08-11 11:24:41 7142 [Warning] InnoDB: Creating foreign key constraint system tables.
2015-08-11 11:24:41 7142 [Note] InnoDB: Foreign key constraint system tables created
2015-08-11 11:24:41 7142 [Note] InnoDB: Creating tablespace and datafile system tables.
2015-08-11 11:24:41 7142 [Note] InnoDB: Tablespace and datafile system tables created.
2015-08-11 11:24:41 7142 [Note] InnoDB: Waiting for purge to start
2015-08-11 11:24:41 7142 [Note] InnoDB: Percona XtraDB (http://www.percona.com) 5.6.25-73.1 started; log sequence number 0
2015-08-11 11:24:41 7142 [Note] RSA private key file not found: /var/lib/mysql//private_key.pem. Some authentication plugins will not work.
2015-08-11 11:24:41 7142 [Note] RSA public key file not found: /var/lib/mysql//public_key.pem. Some authentication plugins will not work.
2015-08-11 11:24:43 7142 [Note] Binlog end
2015-08-11 11:24:43 7142 [Note] InnoDB: FTS optimize thread exiting.
2015-08-11 11:24:43 7142 [Note] InnoDB: Starting shutdown...
2015-08-11 11:24:45 7142 [Note] InnoDB: Shutdown completed; log sequence number 1625977
/usr/sbin/mysqld: /usr/lib/libssl.so.10: no version information available (required by /usr/sbin/mysqld)
/usr/sbin/mysqld: /usr/lib/libcrypto.so.10: no version information available (required by /usr/sbin/mysqld)
2015-08-11 11:24:45 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2015-08-11 11:24:45 0 [Note] /usr/sbin/mysqld (mysqld 5.6.25-73.1) starting as process 7166 ...
2015-08-11 11:24:45 7166 [Note] InnoDB: Using atomics to ref count buffer pool pages
2015-08-11 11:24:45 7166 [Note] InnoDB: The InnoDB memory heap is disabled
2015-08-11 11:24:45 7166 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2015-08-11 11:24:45 7166 [Note] InnoDB: Memory barrier is not used
2015-08-11 11:24:45 7166 [Note] InnoDB: Compressed tables use zlib 1.2.3
2015-08-11 11:24:45 7166 [Note] InnoDB: Using Linux native AIO
2015-08-11 11:24:45 7166 [Note] InnoDB: Not using CPU crc32 instructions
2015-08-11 11:24:45 7166 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2015-08-11 11:24:45 7166 [Note] InnoDB: Completed initialization of buffer pool
2015-08-11 11:24:45 7166 [Note] InnoDB: Highest supported file format is Barracuda.
2015-08-11 11:24:45 7166 [Note] InnoDB: 128 rollback segment(s) are active.
2015-08-11 11:24:45 7166 [Note] InnoDB: Waiting for purge to start
2015-08-11 11:24:45 7166 [Note] InnoDB: Percona XtraDB (http://www.percona.com) 5.6.25-73.1 started; log sequence number 1625977
2015-08-11 11:24:45 7166 [Note] RSA private key file not found: /var/lib/mysql//private_key.pem. Some authentication plugins will not work.
2015-08-11 11:24:45 7166 [Note] RSA public key file not found: /var/lib/mysql//public_key.pem. Some authentication plugins will not work.
2015-08-11 11:24:45 7166 [Note] Binlog end
2015-08-11 11:24:45 7166 [Note] InnoDB: FTS optimize thread exiting.
2015-08-11 11:24:45 7166 [Note] InnoDB: Starting shutdown...
2015-08-11 11:24:47 7166 [Note] InnoDB: Shutdown completed; log sequence number 1625987
PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To do so, start the server, then issue the following commands:
/usr/bin/mysqladmin -u root password 'new-password'
/usr/bin/mysqladmin -u root -h mysql2 password 'new-password'
Alternatively you can run:
/usr/bin/mysql_secure_installation
which will also give you the option of removing the test
databases and anonymous user created by default. This is
strongly recommended for production servers.
See the manual for more instructions.
Please report any problems at
https://bugs.launchpad.net/percona-server/+filebug
The latest information about Percona Server is available on the web at
http://www.percona.com/software/percona-server
Support Percona by buying support at
http://www.percona.com/products/mysql-support
WARNING: Default config file /etc/my.cnf exists on the system
This file will be read by default by the MySQL server
If you do not want to use this, either remove it, or use the
--defaults-file argument to mysqld_safe when starting the server
Percona Server is distributed with several useful UDF (User Defined Function) from Percona Toolkit.
Run the following commands to create these functions:
mysql -e "CREATE FUNCTION fnv1a_64 RETURNS INTEGER SONAME 'libfnv1a_udf.so'"
mysql -e "CREATE FUNCTION fnv_64 RETURNS INTEGER SONAME 'libfnv_udf.so'"
mysql -e "CREATE FUNCTION murmur_hash RETURNS INTEGER SONAME 'libmurmur_udf.so'"
See http://www.percona.com/doc/percona-server/5.6/management/udf_percona_toolkit.html for more details
查询安装信息：
[root@mysql2 soft]# rpm -qa |grep -i percona
Percona-Server-server-56-5.6.25-rel73.1.el6.x86_64
Percona-Server-shared-56-5.6.25-rel73.1.el6.x86_64
Percona-Server-client-56-5.6.25-rel73.1.el6.x86_64
[root@mysql2 soft]# rpm -ql Percona-Server-server-56-5.6.25-rel73.1.el6.x86_64
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 |
|
二、配置Percona-Server
[root@mysql2 soft]# cat /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
[root@mysql2 soft]# vi /etc/my.cnf
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
explicit_defaults_for_timestamp=true
innodb_buffer_pool_size = 128M
join_buffer_size = 128M
sort_buffer_size = 2M
read_rnd_buffer_size = 2M
启动mysql服务：
[root@mysql2 soft]# service mysql start
/usr/bin/my_print_defaults: /usr/lib/libcrypto.so.10: no version information available (required by /usr/bin/my_print_defaults)
Starting MySQL (Percona Server).....[ OK ]
[root@mysql2 soft]# netstat -an |grep :3306
tcp 0 0 :::3306 :::* LISTEN
修改root密码：
[root@mysql2 soft]# mysqladmin -u root password "oracle"
mysqladmin: /usr/lib/libcrypto.so.10: no version information available (required by mysqladmin)
mysqladmin: /usr/lib/libssl.so.10: no version information available (required by mysqladmin)
Warning: Using a password on the command line interface can be insecure.
连接数据库：
[root@mysql2 soft]# mysql -u root -p
mysql: /usr/lib/libcrypto.so.10: no version information available (required by mysql)
mysql: /usr/lib/libssl.so.10: no version information available (required by mysql)
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.25-73.1 Percona Server (GPL), Release 73.1, Revision 07b797f
Copyright (c) 2009-2015 Percona LLC and/or its affiliates
Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
安装遇到的问题：
1、libssl.so.10和libcrypto.so.10 错误 [root@rh6 oracle]#rpm -vih Percona-Server-server-56-5.6.25-rel73.1.el6.x86_64.rpm
warning: Percona-Server-server-56-5.6.25-rel73.1.el6.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID cd2efd2a: NOKEY
error: Failed dependencies:
Percona-Server-client-56 is needed by Percona-Server-server-56-5.6.25-rel73.1.el6.x86_64
Percona-Server-shared-56 is needed by Percona-Server-server-56-5.6.25-rel73.1.el6.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by Percona-Server-server-56-5.6.25-rel73.1.el6.x86_64
libssl.so.10(libssl.so.10)(64bit) is needed by Percona-Server-server-56-5.6.25-rel73.1.el6.x86_64
[root@rh6 oracle]#rpm -ivh Percona-Server-client-56-5.6.25-rel73.1.el6.x86_64.rpm
warning: Percona-Server-client-56-5.6.25-rel73.1.el6.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID cd2efd2a: NOKEY
error: Failed dependencies:
Percona-Server-shared-56 is needed by Percona-Server-client-56-5.6.25-rel73.1.el6.x86_64
libcrypto.so.10(libcrypto.so.10)(64bit) is needed by Percona-Server-client-56-5.6.25-rel73.1.el6.x86_64
libssl.so.10(libssl.so.10)(64bit) is needed by Percona-Server-client-56-5.6.25-rel73.1.el6.x86_64
MySQL conflicts with mysql-5.1.66-2.el6_3.x86_64
卸载原有的mysql：
[root@rh6 oracle]#rpm -qa |grep mysql
mysql-devel-5.1.66-2.el6_3.x86_64
mysql-libs-5.1.66-2.el6_3.x86_64
mysql-5.1.66-2.el6_3.x86_64
qt-mysql-4.6.2-25.el6.x86_64
dovecot-mysql-2.0.9-5.el6.x86_64
[root@rh6 oracle]#rpm -e mysql-devel-5.1.66-2.el6_3.x86_64
[root@rh6 oracle]#rpm -e mysql-5.1.66-2.el6_3.x86_64
安装openssl：
下载openssl-1.0.1：
http://pkgs.org/centos-7/centos-x86_64/openssl-libs-1.0.1e-42.el7.x86_64.rpm/download/
[root@mysql2 soft]# rpm -ivh openssl-1.0.1e-42.el6.x86_64.rpm --force
warning: openssl-1.0.1e-42.el6.x86_64.rpm: Header V3 RSA/SHA1 Signature, key ID c105b9de: NOKEY
Preparing... ########################################### [100%]
1:openssl ########################################### [100%]
[root@mysql2 soft]# rpm -qa |grep openssl
openssl-1.0.1e-42.el6.x86_64
openssl-1.0.0-27.el6.x86_64
openssl098e-0.9.8e-17.el6_2.2.x86_64
openssl-devel-1.0.0-27.el6.x86_64
----RedHat EL6自带openssl-1.0.0版本，对于Percona-Server应该安装openssl-1.0.1的版本，安装新版本后，问题解决。
2、解决“/usr/lib/libcrypto.so.10: no version information available ” [root@mysql2 soft]# rpm -qa |grep openssl
openssl-1.0.1e-42.el6.x86_64
openssl-1.0.0-27.el6.x86_64
openssl098e-0.9.8e-17.el6_2.2.x86_64
openssl-devel-1.0.0-27.el6.x86_64
卸载openssl旧版本： [root@mysql2 soft]# rpm -e openssl-devel-1.0.0-27.el6.x86_64
[root@mysql2 soft]# rpm -e openssl-1.0.0-27.el6.x86_64 [root@mysql2 soft]# rpm -e openssl098e-0.9.8e-17.el6_2.2.x86_64
[root@mysql2 soft]# ls -l /usr/lib/libcrypto.so.10
-rwxr-xr-x 1 root root 1665328 Aug 11 10:40 /usr/lib/libcrypto.so.10
[root@mysql2 soft]# rpm -ql openssl
[root@mysql2 soft]#
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 |
|
lrwxrwxrwx 1 root root 19 Aug 11 11:21 /usr/lib64/libcrypto.so.10 -> libcrypto.so.1.0.1e
-rwxr-xr-x 1 root root 1963296 Jul 24 03:09 /usr/lib64/libcrypto.so.1.0.1e
lrwxrwxrwx. 1 root root 25 Sep 29 2013 /usr/lib64/libcrypt.so -> ../../lib64/libcrypt.so.1
lrwxrwxrwx. 1 root root 19 Sep 29 2013 /usr/lib64/libcryptui.so.0 -> libcryptui.so.0.0.0
-rwxr-xr-x 1 root root 78280 Mar 15 2010 /usr/lib64/libcryptui.so.0.0.0
[root@mysql2 soft]# ln -s /usr/lib64/libcrypto.so.1.0.1e /usr/lib/libcrypto.so.10
ln: creating symbolic link `/usr/lib/libcrypto.so.10': File exists
[root@mysql2 soft]# ln -sf /usr/lib64/libcrypto.so.1.0.1e /usr/lib/libcrypto.so.10
[root@mysql2 soft]# ls -l /usr/lib/libcrypto.so.10 lrwxrwxrwx 1 root root 30 Aug 11 11:46 /usr/lib/libcrypto.so.10 -> /usr/lib64/libcrypto.so.1.0.1e
[root@mysql2 soft]# service mysql start
Starting MySQL (Percona Server)....[ OK ]
---自此，问题解决！
3、解决“/usr/lib/libssl.so.10: no version information available” [root@mysql2 soft]# mysql -u root -p mysql: /usr/lib/libssl.so.10: no version information available (required by mysql)
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.6.25-73.1 Percona Server (GPL), Release 73.1, Revision 07b797f
Copyright (c) 2009-2015 Percona LLC and/or its affiliates
Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
建立libssl的链接：
[root@mysql2 soft]# ln -sf /usr/lib64/libssl.so.10 /usr/lib/libssl.so.10
[root@mysql2 soft]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.6.25-73.1 Percona Server (GPL), Release 73.1, Revision 07b797f
Copyright (c) 2009-2015 Percona LLC and/or its affiliates
Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
-----问题解决！
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Numpy ialah perpustakaan matematik penting dalam Python Ia menyediakan operasi tatasusunan yang cekap dan fungsi pengiraan saintifik dan digunakan secara meluas dalam analisis data, pembelajaran mesin, pembelajaran mendalam dan bidang lain. Apabila menggunakan numpy, kita selalunya perlu menyemak nombor versi numpy untuk menentukan fungsi yang disokong oleh persekitaran semasa. Artikel ini akan memperkenalkan cara menyemak versi numpy dengan cepat dan memberikan contoh kod khusus. Kaedah 1: Gunakan atribut __version__ yang disertakan dengan numpy Modul numpy disertakan dengan __.
Bagaimana untuk menyemak versi maven
Jan 17, 2024 pm 05:06 PM
Kaedah untuk menyemak versi maven: 1. Gunakan baris arahan 2. Semak pembolehubah persekitaran 3. Gunakan IDE 4. Semak fail pom.xml. Pengenalan terperinci: 1. Gunakan baris arahan, masukkan "mvn -v" atau "mvn --version" dalam baris arahan, dan kemudian tekan Enter Ini akan memaparkan maklumat versi Maven dan maklumat versi Java; variables , pada sesetengah sistem, anda boleh menyemak pembolehubah persekitaran untuk mencari maklumat versi Maven, masukkan arahan pada baris arahan, dan kemudian tekan Enter, dsb.
Tutorial mengemas kini versi curl di bawah Linux!
Mar 07, 2024 am 08:30 AM
Untuk mengemas kini versi curl di bawah Linux, anda boleh mengikuti langkah di bawah: Semak versi curl semasa: Pertama, anda perlu menentukan versi curl yang dipasang dalam sistem semasa. Buka terminal dan laksanakan arahan berikut: curl --version Perintah ini akan memaparkan maklumat versi curl semasa. Sahkan versi curl tersedia: Sebelum mengemas kini curl, anda perlu mengesahkan versi terkini yang tersedia. Anda boleh melawati tapak web rasmi curl (curl.haxx.se) atau sumber perisian yang berkaitan untuk mencari versi terkini curl. Muat turun kod sumber curl: Menggunakan curl atau penyemak imbas, muat turun fail kod sumber untuk versi curl pilihan anda (biasanya .tar.gz atau .tar.bz2
Cara menyemak versi Oracle yang dipasang dengan mudah
Mar 07, 2024 am 11:27 AM
Cara menyemak versi Oracle yang dipasang dengan mudah memerlukan contoh kod khusus Sebagai perisian yang digunakan secara meluas dalam sistem pengurusan pangkalan data peringkat perusahaan, pangkalan data Oracle mempunyai banyak versi dan kaedah pemasangan yang berbeza. Dalam kerja harian kami, kami sering perlu menyemak versi pangkalan data Oracle yang dipasang untuk operasi dan penyelenggaraan yang sepadan. Artikel ini akan memperkenalkan cara menyemak versi Oracle yang dipasang dengan mudah dan memberikan contoh kod tertentu. Kaedah 1: Melalui pertanyaan SQL dalam pangkalan data Oracle, kita boleh
Semak versi sistem pengendalian Kirin dan versi kernel
Feb 21, 2024 pm 07:04 PM
Menyemak versi sistem pengendalian Kylin dan versi kernel Dalam sistem pengendalian Kirin, mengetahui cara menyemak versi sistem dan versi kernel adalah asas untuk pengurusan dan penyelenggaraan sistem. Kaedah 1 untuk menyemak versi sistem pengendalian Kylin: Gunakan fail /etc/.kyinfo Untuk menyemak versi sistem pengendalian Kylin, anda boleh menyemak fail /etc/.kyinfo. Fail ini mengandungi maklumat versi sistem pengendalian. Jalankan arahan berikut: cat/etc/.kyinfo Perintah ini akan memaparkan maklumat versi terperinci sistem pengendalian. Kaedah 2: Gunakan fail /etc/issue Cara lain untuk menyemak versi sistem pengendalian adalah dengan melihat fail /etc/issue. Fail ini juga menyediakan maklumat versi, tetapi mungkin tidak sebaik fail .kyinfo
Langkah mudah untuk mengemas kini versi pip: selesai dalam 1 minit
Jan 27, 2024 am 09:45 AM
Selesai dalam satu minit: Cara mengemas kini versi pip, contoh kod khusus diperlukan Dengan perkembangan pesat Python, pip telah menjadi alat standard untuk pengurusan pakej Python. Walau bagaimanapun, seiring dengan berlalunya masa, versi pip sentiasa dikemas kini Untuk dapat menggunakan ciri terkini dan memperbaiki kemungkinan kelemahan keselamatan, adalah sangat penting untuk mengemas kini versi pip. Artikel ini akan menerangkan cara mengemas kini pip dengan cepat dalam satu minit dan memberikan contoh kod khusus. Pertama, kita perlu membuka tetingkap baris arahan. Dalam sistem Windows, anda boleh menggunakan
Bagaimana untuk mengetahui sama ada antara muka dp ialah 1.2 atau 1.4?
Feb 06, 2024 am 10:27 AM
Antara muka DP adalah kabel antara muka yang penting dalam komputer Apabila menggunakan komputer, ramai pengguna ingin mengetahui sama ada antara muka DP adalah 1.2 atau 1.4, mereka hanya perlu menyemaknya dalam GPU-Z. Cara menentukan sama ada antara muka dp ialah 1.2 atau 1.4: 1. Mula-mula, pilih "Lanjutan" dalam GPU-Z. 2. Lihat "Monitor1" dalam "General" di bawah "Advanced", anda boleh melihat dua item "LinkRate (semasa)" dan "Lanes (semasa)". 3. Akhir sekali, jika 8.1Gbps×4 dipaparkan, ia bermakna versi DP1.3 atau lebih tinggi, biasanya DP1.4 Jika 5.4Gbps×4, maka
750,000 pusingan pertempuran satu lawan satu antara model besar, GPT-4 memenangi kejuaraan, dan Llama 3 menduduki tempat kelima
Apr 23, 2024 pm 03:28 PM
Mengenai Llama3, keputusan ujian baharu telah dikeluarkan - komuniti penilaian model besar LMSYS mengeluarkan senarai kedudukan model besar Llama3 menduduki tempat kelima, dan terikat untuk tempat pertama dengan GPT-4 dalam kategori Bahasa Inggeris. Gambar ini berbeza daripada Penanda Aras yang lain Senarai ini berdasarkan pertempuran satu lawan satu antara model, dan penilai dari seluruh rangkaian membuat cadangan dan skor mereka sendiri. Pada akhirnya, Llama3 menduduki tempat kelima dalam senarai, diikuti oleh tiga versi GPT-4 dan Claude3 Super Cup Opus yang berbeza. Dalam senarai tunggal Inggeris, Llama3 mengatasi Claude dan terikat dengan GPT-4. Mengenai keputusan ini, ketua saintis Meta LeCun sangat gembira, tweet semula dan
