I am reading HBase docs and came across the Off-heap read path As far as I understand this Off-heap is a place in memory where Java stores bytes/objects outside the reach of the Garbage Collector. I also went to search for some libs that facilitate using the off-heap memory and found Ehcatche However, I could not find any official docs from oracle or JVM about his. So is this a standard functionality of JVM or it is some kind of a hack and if it is what are the underlying classes and techniques used to do this?
Is Off-heap memory is a Java/JVM standard?
1.7k Views Asked by Adelin At
1
There are 1 best solutions below
Related Questions in JAVA
- Can MVC.NET prevent SQL-injection at razor or controller level?
- Getting and passing MVC Model data to AngularJS controller
- Access property of an object of type [Model] in JQuery
- Entity Framework Code First with Fluent API Concurrency `DbUpdateConcurrencyException` Not Raising
- Bundling and minification issue in MVC
- ASP-MVC Code-first migrations checkbox not active
- Why does Azure CloudConfigurationManager.GetSetting return null
- Dynamic roles list in CustomAuthorize ASP MVC
- Jquery: Change contents of <select> tag dynamically
- Why web API return 404 when deploy to IIS
Related Questions in JVM
- Can MVC.NET prevent SQL-injection at razor or controller level?
- Getting and passing MVC Model data to AngularJS controller
- Access property of an object of type [Model] in JQuery
- Entity Framework Code First with Fluent API Concurrency `DbUpdateConcurrencyException` Not Raising
- Bundling and minification issue in MVC
- ASP-MVC Code-first migrations checkbox not active
- Why does Azure CloudConfigurationManager.GetSetting return null
- Dynamic roles list in CustomAuthorize ASP MVC
- Jquery: Change contents of <select> tag dynamically
- Why web API return 404 when deploy to IIS
Related Questions in OFF-HEAP
- Can MVC.NET prevent SQL-injection at razor or controller level?
- Getting and passing MVC Model data to AngularJS controller
- Access property of an object of type [Model] in JQuery
- Entity Framework Code First with Fluent API Concurrency `DbUpdateConcurrencyException` Not Raising
- Bundling and minification issue in MVC
- ASP-MVC Code-first migrations checkbox not active
- Why does Azure CloudConfigurationManager.GetSetting return null
- Dynamic roles list in CustomAuthorize ASP MVC
- Jquery: Change contents of <select> tag dynamically
- Why web API return 404 when deploy to IIS
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular # Hahtags
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
You should look for ByteBuffer
It's up to JVM implementation how it handles direct ByteBuffers, but at least OpenJDK JVM is allocating memory off-heap.
The JEP 383: Foreign-Memory Access API (Second Incubator) feature is incubating in Java 15. This feature will make accessing off-heap memory standard by providing public API.