使用pt-osc进行ddl要开一个session去操作,set-vars可以在执行alter之前设定这些变量,比如默认会设置--set-vars "wait_timeout=10000,innodb_lock_wait_timeout=1,lock_wait_timeout=60"。 因为使用pt-osc之后ddl的速度会变慢,所以预计2.5h只能还不能改完,记得加大wait_timeout。 --dry-run 创建和修改新表,...
In addition, you can specify a file that contains your custom trigger function, written in Unix shell script. This can be a wrapper that executes anything you wish. If the argument to --function is a file, then it takes precedence over built-in functions, so if there is a file in the...
pt-archiver是Percona-Toolkit工具集中的一个组件,是一个主要用于对MySQL表数据进行归档和清除工具。它可以将数据归档到另一张表或者是一个文件中。pt-archiver在清除表数据的过程中并不会影响OLTP事务的查询性能。对于数据的归档,它可以归档到另一台服务器上的另一张表,也可归档到一个文件中,文件可以用LOAD DATA ...
In Python, you’ll often use parentheses. In some cases, you might have several sets of parentheses nested within a code block, which means that you might end up missing a closing parenthesis. The interactive shell can help you overcome this pitfall if you turn on theHighlight parenthesisopti...
```shell # /etc/systemd/system/rtorrent.service [Unit] Description=rTorrent System Daemon After=network.target [Service] Type=forking User=用户名 Group=用户分组名 ExecStart=/usr/bin/tmux -L rt new-session -s rt -n rt -d "/usr/bin/rtorrent -n -o import=/home/deluge/.rtorrent.rc" ...
NATPT/4/MAX_SESSION_REACH:The amount of sessions reached maximum. 日志含义 会话数量超过当前配置的最大范围(0～10001),路由器不能建立新的session。 日志参数 可能原因 会话数量超过当前配置的最大范围(0～10001),路由器不能建立新的session。 处理步骤 ...
Is rs:ClearSession=true the same as checking "Do not cache temporary copies of this report" is there a simple redirect capability in ssrs? Is there a way to bold part of a text string? Is there a way to provide the last (latest) data refresh date and time in a text box in SS...
step1a: Load Design and check // 加载设计和检查 # Read gate level netlist; See also help read* read verilog orca_routed.v.gz # Set the current design to be Top level design current design ORCAH # Check what is Current design pt_shell> current_design {"ORCA"} # what Designs are ...
shell> /usr/bin/pt-online-schema-change --alter add index `idx_app_id`(app_id) --print --set-vars lock_wait_timeout=60 --charset=utf8 --chunk-time 1 --critical-load Threads_connected:10000,Threads_running:5000 --max-load Threads_connected:10000,Threads_running:5000 --sleep=1 --re...
For switching the shell to another user, use su username or su - username. The latter with "-" gets an environment as if another user just logged in. Omitting the username defaults to root. You will be asked for the password of the user you are switching to. Know about the 128K limit...