Lenna  Kihn

Lenna Kihn

1665689940

Solana Geyser Plugin Implementing A Kafka Publisher

Solana AccountsDB Plugin for Kafka

Kafka publisher for use with Solana's plugin framework.

Installation

Binary releases

Find binary releases at: https://github.com/Blockdaemon/solana-accountsdb-plugin-kafka/releases

Building from source

cargo build --release
  • Linux: ./target/release/libsolana_accountsdb_plugin_kafka.so
  • macOS: ./target/release/libsolana_accountsdb_plugin_kafka.dylib

Important: Solana's plugin interface requires the build environment of the Solana validator and this plugin to be identical.

This includes the Solana version and Rust compiler version. Loading a plugin targeting wrong versions will result in memory corruption and crashes.

Config

Config is specified via the plugin's JSON config file.

Example Config

{  "libpath": "/solana/target/release/libsolana_accountsdb_plugin_kafka.so",  "kafka": {    "bootstrap.servers": "localhost:9092",    "request.required.acks": "1",    "message.timeout.ms": "30000",    "compression.type": "lz4",    "partitioner": "murmur2_random"  },  "shutdown_timeout_ms": 30000,  "update_account_topic": "solana.testnet.account_updates",  "slot_status_topic": "solana.testnet.slot_status",  "publish_all_accounts": false,  "program_ignores": [    "Sysvar1111111111111111111111111111111111111",    "Vote111111111111111111111111111111111111111"  ]}

Reference

  • libpath: Path to Kafka plugin
  • kafka: librdkafka config options. This plugin overrides the defaults as seen in the example config.
  • shutdown_timeout_ms: Time the plugin is given to flush out all messages to Kafka upon exit request.
  • update_account_topic: Topic name of account updates. Omit to disable.
  • slot_status_topic: Topic name of slot status update. Omit to disable.
  • publish_all_accounts: Publish all accounts on startup. Omit to disable.
  • program_ignores: Solana program IDs for which to ignore updates for owned accounts.

Buffering

The Kafka producer acts strictly non-blocking to allow the Solana validator to sync without much induced lag. This means incoming events from the Solana validator will get buffered and published asynchronously.

When the publishing buffer is exhausted any additional events will get dropped. This can happen when Kafka brokers are too slow or the connection to Kafka fails. Therefor it is crucial to choose a sufficiently large buffer.

The buffer size can be controlled using librdkafka config options, including:

  • queue.buffering.max.messages: Maximum number of messages allowed on the producer queue.
  • queue.buffering.max.kbytes: Maximum total message size sum allowed on the producer queue.

Download Details:

Author: Blockdaemon
Source Code: https://github.com/Blockdaemon/solana-accountsdb-plugin-kafka

License: Apache-2.0 license

#rust #kafka #solona 

What is GEEK

Buddha Community

Solana Geyser Plugin Implementing A Kafka Publisher
Aylin Hazel

Aylin Hazel

1648532804

Solana price moons past $100 as SOL bulls set their eyes on $150

#Solana price moons past $100 as #SOL bulls set their eyes on $150

#Solana price is looking promising

#Solana price has ascended into the mid $110 zone to start this week's trading session. It was mentioned in last week's neutral thesis that a breach above the triangle's C wave at $106 could be the ultimate catalyst to a 40% rally. This weekend, The bulls pushed Solana price through the trigger level, printing two bullish engulfing candles on the 9-hour chart.

#Solana price will likely continue rising as five wave impulses typically follow triangle breakouts. #Solana price has completed the first impulse into the trigger level at $106 and will need two more impulsive waves to justify the validity of the triangle consolidation.

It's also worth noting that the volume profile is increasing with large buy orders from investors, indicating strength and confidence in the current trend. Traders should consider looking for entries on smaller time frames as the price is likely to chop around the trigger zone.

Lenna  Kihn

Lenna Kihn

1665689940

Solana Geyser Plugin Implementing A Kafka Publisher

Solana AccountsDB Plugin for Kafka

Kafka publisher for use with Solana's plugin framework.

Installation

Binary releases

Find binary releases at: https://github.com/Blockdaemon/solana-accountsdb-plugin-kafka/releases

Building from source

cargo build --release
  • Linux: ./target/release/libsolana_accountsdb_plugin_kafka.so
  • macOS: ./target/release/libsolana_accountsdb_plugin_kafka.dylib

Important: Solana's plugin interface requires the build environment of the Solana validator and this plugin to be identical.

This includes the Solana version and Rust compiler version. Loading a plugin targeting wrong versions will result in memory corruption and crashes.

Config

Config is specified via the plugin's JSON config file.

Example Config

{  "libpath": "/solana/target/release/libsolana_accountsdb_plugin_kafka.so",  "kafka": {    "bootstrap.servers": "localhost:9092",    "request.required.acks": "1",    "message.timeout.ms": "30000",    "compression.type": "lz4",    "partitioner": "murmur2_random"  },  "shutdown_timeout_ms": 30000,  "update_account_topic": "solana.testnet.account_updates",  "slot_status_topic": "solana.testnet.slot_status",  "publish_all_accounts": false,  "program_ignores": [    "Sysvar1111111111111111111111111111111111111",    "Vote111111111111111111111111111111111111111"  ]}

Reference

  • libpath: Path to Kafka plugin
  • kafka: librdkafka config options. This plugin overrides the defaults as seen in the example config.
  • shutdown_timeout_ms: Time the plugin is given to flush out all messages to Kafka upon exit request.
  • update_account_topic: Topic name of account updates. Omit to disable.
  • slot_status_topic: Topic name of slot status update. Omit to disable.
  • publish_all_accounts: Publish all accounts on startup. Omit to disable.
  • program_ignores: Solana program IDs for which to ignore updates for owned accounts.

Buffering

The Kafka producer acts strictly non-blocking to allow the Solana validator to sync without much induced lag. This means incoming events from the Solana validator will get buffered and published asynchronously.

When the publishing buffer is exhausted any additional events will get dropped. This can happen when Kafka brokers are too slow or the connection to Kafka fails. Therefor it is crucial to choose a sufficiently large buffer.

The buffer size can be controlled using librdkafka config options, including:

  • queue.buffering.max.messages: Maximum number of messages allowed on the producer queue.
  • queue.buffering.max.kbytes: Maximum total message size sum allowed on the producer queue.

Download Details:

Author: Blockdaemon
Source Code: https://github.com/Blockdaemon/solana-accountsdb-plugin-kafka

License: Apache-2.0 license

#rust #kafka #solona 

How To Customize WordPress Plugins? (4 Easy Ways To Do)

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WordPress needs no introduction. It has been in the world for quite a long time. And up till now, it has given a tough fight to leading web development technology. The main reason behind its remarkable success is, it is highly customizable and also SEO-friendly. Other benefits include open-source technology, security, user-friendliness, and the thousands of free plugins it offers.

Talking of WordPress plugins, are a piece of software that enables you to add more features to the website. They are easy to integrate into your website and don’t hamper the performance of the site. WordPress, as a leading technology, has to offer many out-of-the-box plugins.

However, not always the WordPress would be able to meet your all needs. Hence you have to customize the WordPress plugin to provide you the functionality you wished. WordPress Plugins are easy to install and customize. You don’t have to build the solution from scratch and that’s one of the reasons why small and medium-sized businesses love it. It doesn’t need a hefty investment or the hiring of an in-house development team. You can use the core functionality of the plugin and expand it as your like.

In this blog, we would be talking in-depth about plugins and how to customize WordPress plugins to improve the functionality of your web applications.

What Is The Working Of The WordPress Plugins?

Developing your own plugin requires you to have some knowledge of the way they work. It ensures the better functioning of the customized plugins and avoids any mistakes that can hamper the experience on your site.

1. Hooks

Plugins operate primarily using hooks. As a hook attaches you to something, the same way a feature or functionality is hooked to your website. The piece of code interacts with the other components present on the website. There are two types of hooks: a. Action and b. Filter.

A. Action

If you want something to happen at a particular time, you need to use a WordPress “action” hook. With actions, you can add, change and improve the functionality of your plugin. It allows you to attach a new action that can be triggered by your users on the website.

There are several predefined actions available on WordPress, custom WordPress plugin development also allows you to develop your own action. This way you can make your plugin function as your want. It also allows you to set values for which the hook function. The add_ action function will then connect that function to a specific action.

B. Filters

They are the type of hooks that are accepted to a single variable or a series of variables. It sends them back after they have modified it. It allows you to change the content displayed to the user.

You can add the filter on your website with the apply_filter function, then you can define the filter under the function. To add a filter hook on the website, you have to add the $tag (the filter name) and $value (the filtered value or variable), this allows the hook to work. Also, you can add extra function values under $var.

Once you have made your filter, you can execute it with the add_filter function. This will activate your filter and would work when a specific function is triggered. You can also manipulate the variable and return it.

2. Shortcodes

Shortcodes are a good way to create and display the custom functionality of your website to visitors. They are client-side bits of code. They can be placed in the posts and pages like in the menu and widgets, etc.

There are many plugins that use shortcodes. By creating your very own shortcode, you too can customize the WordPress plugin. You can create your own shortcode with the add_shortcode function. The name of the shortcode that you use would be the first variable and the second variable would be the output of it when it is triggered. The output can be – attributes, content, and name.

3. Widgets

Other than the hooks and shortcodes, you can use the widgets to add functionality to the site. WordPress Widgets are a good way to create a widget by extending the WP_Widget class. They render a user-friendly experience, as they have an object-oriented design approach and the functions and values are stored in a single entity.

How To Customize WordPress Plugins?

There are various methods to customize the WordPress plugins. Depending on your need, and the degree of customization you wish to make in the plugin, choose the right option for you. Also, don’t forget to keep in mind that it requires a little bit of technical knowledge too. So find an expert WordPress plugin development company in case you lack the knowledge to do it by yourself.

1. Hire A Plugin Developer3
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One of the best ways to customize a WordPress plugin is by hiring a plugin developer. There are many plugin developers listed in the WordPress directory. You can contact them and collaborate with world-class WordPress developers. It is quite easy to find a WordPress plugin developer.

Since it is not much work and doesn’t pay well or for the long term a lot of developers would be unwilling to collaborate but, you will eventually find people.

2. Creating A Supporting Plugin

If you are looking for added functionality in an already existing plugin go for this option. It is a cheap way to meet your needs and creating a supporting plugin takes very little time as it has very limited needs. Furthermore, you can extend a plugin to a current feature set without altering its base code.

However, to do so, you have to hire a WordPress developer as it also requires some technical knowledge.

3. Use Custom Hooks

Use the WordPress hooks to integrate some other feature into an existing plugin. You can add an action or a filter as per your need and improve the functionality of the website.

If the plugin you want to customize has the hook, you don’t have to do much to customize it. You can write your own plugin that works with these hooks. This way you don’t have to build a WordPress plugin right from scratch. If the hook is not present in the plugin code, you can contact a WordPress developer or write the code yourself. It may take some time, but it works.

Once the hook is added, you just have to manually patch each one upon the release of the new plugin update.

4. Override Callbacks

The last way to customize WordPress plugins is by override callbacks. You can alter the core functionality of the WordPress plugin with this method. You can completely change the way it functions with your website. It is a way to completely transform the plugin. By adding your own custom callbacks, you can create the exact functionality you desire.

We suggest you go for a web developer proficient in WordPress as this requires a good amount of technical knowledge and the working of a plugin.

Read More

#customize wordpress plugins #how to customize plugins in wordpress #how to customize wordpress plugins #how to edit plugins in wordpress #how to edit wordpress plugins #wordpress plugin customization

akshay L

akshay L

1572344038

Kafka Spark Streaming | Kafka Tutorial

In this kafka spark streaming tutorial you will learn what is apache kafka, architecture of apache kafka & how to setup a kafka cluster, what is spark & it’s features, components of spark and hands on demo on integrating spark streaming with apache kafka and integrating spark flume with apache kafka.

# Kafka Spark Streaming #Kafka Tutorial #Kafka Training #Kafka Course #Intellipaat

7 Best Video Player and Gallery Plugins for WordPress Website in 2021

When you want to watch a video, then you always choose to watch videos on YouTube and go for other popular streaming websites. Although such videos provide amazing watching experience and if you want to make own website that simply allows spectators to watch videos also. At that time you can prefer WordPress, even this is not only that, businesses which mostly tend to make video content and register them on their website. Therefore, you need video player WordPress plugins that makes simpler the entire procedures of dealing with videos on your website. Along with, you get remarkable video players that make an appealing appearance on your website.

Best Video Player WordPress Plugins

WP Video Lightbox

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WP Video LightboxWordPress plugin lets users insert videos right on top of any page by implementing a lightbox intersection screen. The plugin is very convenient when you are keen to show pictures, flash, YouTube, or Vimeo videos on your website. In addition, the plugin is fully approachable, thus, all mobile users like its amazing features.

The plugin assists you by automatically appealing the thumbnail for the Video which you make use of it, although you have a great choice to utilize your thumbnails if you wish for. The plugin also offers you an ideal alternative to restrict recommended video in the last part of a YouTube video, therefore your viewers will not to be unfocused. Additionally, you can buy antivirus online using Amazon Promo Code to protect your system form virus.

Portfolio Designer

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Portfolio Designer is a complete solution for developing an astonishing portfolio, galleries, as well showcase into the WordPress website. The plugin has in-built infinite layout styles such as grid, masonry, slider, WooCommerce, and justify. Additionally, it includes 50+ awesome hover and animation effects to captivate your website visitors instantly. This plugin supports audio and video formats to create fantastic galleries hassle-free.

The plugin has unlimited colors and design options that a user can modify smoothly and introduce the portfolio presentation vividly. It has 800+ Google web fonts, fancy box integration, support unlimited custom post, and so on. A user can get all the functionalities to build an attractive portfolio in just one plugin. With the Portfolio Designer WordPress plugin, there are no restrictions to display the portfolio or galleries to any website page. The plugin is also available in the lite version at the WordPress repository.

ARVE Advanced Responsive Video Embedder

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ARVE Advanced Responsive Video Embedder a well-known and great video implanting plugin for WordPress that is absolutely free of cost. The plugin is packed with multiple amazing features to grab each particular problem you are expected to expression by displaying such videos on your website.

Most importantly, this plugin allows to create the entire videos you insert into responsive videos and this is done just because of your mobile users can take pleasure such astounding experiences with hassle-free. Other alternatives comprise WYSIWYG support, auto-start videos, tweaking URL factors if you wish for, transforming video position, and lots more.

Find more plugins here.

#best wordpress plugins #best wp video plugin #video gallery wordpress plugin #wordpress gallery plugin #wordpress video plugin