session_tracker | Track active user sessions in redis | State Container library

by joakimk Ruby Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(2)Vulnerabilities Install Support

kandi X-RAY | session_tracker Summary

session_tracker is a Ruby library typically used in User Interface, State Container, Ruby On Rails applications. session_tracker has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Track active user sessions in redis

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Quality

Security

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Support

session_tracker has a low active ecosystem.

It has 9 star(s) with 4 fork(s). There are 2 watchers for this library.

It had no major release in the last 6 months.

session_tracker has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of session_tracker is current.

Quality

session_tracker has no bugs reported.

Security

session_tracker has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

session_tracker does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

session_tracker releases are not available. You will need to build from source code and install.

Installation instructions, examples and code snippets are available.

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session_tracker Key Features

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session_tracker Examples and Code Snippets

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Community Discussions

Trending Discussions on session_tracker

Mysql per thread memory, variables that lead to thread memory usage?

Visual Studio SSDT how do i run/execute a table that i created? It is a .sql file but not showing in SQL Server

QUESTION

Mysql per thread memory, variables that lead to thread memory usage?

Asked 2021-Jan-20 at 19:11

We recently upgraded from mysql 5.6 to mysql 8.0 on a few servers, one of the servers was fine, and has had no problems, but it has significantly less load than one of our other servers which has been running out of memory.

Our server launches, then grabs 300 connections, and keeps them open with a C3P0 pool to the mysql server.

We were running these servers on AWS on MySQL 5.6 with the same overridden parameters on 8GB of RAM, when we upgraded to MySQL 8.0.21 we started running out of RAM in about 1 day. We grew the server to 32Gb but didn't change the parameters. It's gone over 15 GB used and still going up.

We're pretty sure it's related to the per connection thread memory, but not sure why. From looking at MySQL tuner it looks like the variables that control per thread memory are:

...

ANSWER

Answered 2021-Jan-18 at 19:41

You're calculating the per-thread memory usage wrong. Those variables (and tmp_table_size which you didn't include) are not all used at the same time. Don't add them up. And even if you were to add them up, at least two might be allocated multiple times for a single query, so you can't just sum them anyway.

Basically, the memory usage calculated by MySQLTuner is totally misleading, and you shouldn't believe it. I have written about this before: What does "MySQL's maximum memory usage is dangerously high" mean by mysqltuner?

If you want to understand actual memory usage, use the PERFORMANCE_SCHEMA, or the slightly easier to read views on it, in the SYS schema.

The documentation for PS or SYS is pretty dense, so instead I'd look for better examples in blogs like this one:

https://www.percona.com/blog/2020/11/02/understanding-mysql-memory-usage-with-performance-schema/

Source https://stackoverflow.com/questions/65780309

QUESTION

Visual Studio SSDT how do i run/execute a table that i created? It is a .sql file but not showing in SQL Server

Asked 2017-Sep-06 at 08:01

I have used SSDT back in 2014, but I have forgotten most of it AND it seems a lot different now in with VS 2017 etc..

I see both (localdb)\MSSQLLocalDB and I see (localdb)\ProjectsV13 - based on what I read. I assume I should use MSSQLLOCALDB (I want create a database project and create my schema with SQL Server Object Explorer, then import the database into a VS database project)
I cannot seem to execute the table that I created (I can open up SSMS and create it, but that defeats the purpose of this sort of)
Also I want to then send /run on another database server dacpac/bacpac but seems like so many videos are outdated from 2014 using SQL Server Express etc..

Example of simple table:

...

ANSWER

Answered 2017-Sep-06 at 05:22

You can perform a schema compare between the project and the target database. You can find it in Tools > SQL Server > New schema comparison... menu.

If all you want is to deploy a single table, complete redeployment sounds like an overkill, while schema comparison looks optimal.

DACPAC is also an option, you can build your database project and the .dacpac file will be created in the /bin/(BuildConfiguration) folder, usually it's /bin/Debug. I don't think much has changed in this way of deployment.

Source https://stackoverflow.com/questions/46065386

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install session_tracker

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