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Questions tagged [ehcache-bigmemory]

BigMemory is an extension to the Enterprise Ehcache that allows java system to cache large amounts of data in process but free of the constraints of garbage collection.

BigMemory is an extension to the Enterprise Ehcache that allows java system to cache large amounts of data in process but free of the constraints of garbage collection.

Quote from terracotta website:

BigMemory gives Java applications instant, effortless access to a large memory footprint, free of the constraints of garbage collection.

BigMemory is pure Java and provides an in-process, off-heap cache that lets you store large amounts of data—up to a terabyte—closer to your application. This breakthrough solution improves memory utilization and application performance with both standalone and distributed caching.

61 questions
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big.matrix as data.frame in R

I've recently started using R for data analysis. Now I've got a problem in ranking a big query dataset (~1 GB in ASCII mode, over my laptop's 4GB RAM in binary mode). Using bigmemory::big.matrix for this dataset is a nice solution, but providing…
Igor Shalyminov
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Ehcache, fast restartable and overflow to disk

I am using ehcache entreprise 2.7 with big memory. I want to have a cache that overflow to the disk when full AND I want this cache to be persistent through restarts. My current configuration is that :
tibo
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Is there a BigMemory like system for .net

I have just been reading about how BigMemory allows Java systems to scale up rather than out. About BigMemory: BigMemory gives Java applications instant, effortless access to a large memory footprint, free of the constraints of garbage…
Ian Ringrose
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How to store a nested Map structure in Ehcache?

I want to store a Variable of type Map < Integer, Map < String, Map < String, Integer >>> into Ehcache. How to store this nested Map structure in Ehcache as a value?
Sibani
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RStudio crashes after installing "bigmemory" package

So i have installed the bigmemory package and it was working just fine. The next day i opened RStudio and it looks that it's trying to load the package without any command. Loading required package: bigmemory It also pops an error: R encountered…
AndreasNearchou
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EhCache cached object modification

I've to implement caching with EhCache. Basic requirement is, I have to keep that cached object for fixed interval ( for now 1 hours in code below). So, I implemented the code as below: Sample domain object: import…
Yogen Rai
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Differences between Ehcache 3 OffHeap storage and BigMemory

In Ehcache 2.X offheap storage is available using Terracotta's BigMemory commercial product. However, since Ehcache 3 it seems offheap storage is free. I wonder if BigMemory product has moved to Ehcache 3 and if they are different product, what are…
telle
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Caching large lookup table in JVM memory

We have a large dataset of historical transactions, and we have a system that is required to check new transactions against each historical transaction in this dataset. This involves running a algorithm on each historical transaction which produces…
user1232555
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Ehcache avoid storing sensitive data to disk?

We want to cache, using Ehcache, sensitive data that should never be stored to disk (data can only reside in main memory). It is the kind of data that is illegal for it to be stored on disk at all and therefore needs to be treated with a certain…
stikku
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Difference between BigMemory Go or EhCache and BigMemory Max in terms of distributed environment and replication

Can anybody help me understand the difference in ehcache or BigMemory GO and BigMemory Max in terms of support for distributed caches and replication? I see that using RMIEventListener, ehCache also supports distributed caching while BigMemory Max…
prasadsh
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Understanding ehcache and how it works with Play Framework 2.X

We added some choice Cache.getOrElse() statements in our Play 2.2.2 application to store some intermediate products of some rather CPU intensive calculations. Seemed like an easy win! Several of these are rather complex case classes and we noticed…
andrewl
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Multiple cache bag for each tenant

I am implementing second level cache in my project with hibernate + spring + terracotta and i want multiple cache bag for each tenant(organization). Like if i am logged in with 1st tenant and there is listing of department and saved in cache. When…
Prince Mahay
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Allocate a big matrix

I'm using the bigmemory package. I want to calculate w. My v length is 478000 and k length is 240500. The two matrix multiplication is w very large. I run the code by loop, but it still is running and is not finished yet and I don't know if will…
user1977435
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Does Big Memory compliments EhCache & Terracotta server?

I am using EHCache as second level cache for my application's Hibernate DAO layer. To implement distributed cache I am planning to include Terracotta Server. Recently I came to know about Terracotta's another product Big Memory. Few questions…
Himanshu Yadav
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Database query objects are not stored in cache (BigMemory Max, Oracle)

I am new to java world (spring hibernate etc). I am doing PoC for cache implementation for cluster environment. I simply want to reduce hits in database and hence want database objects to be stored in cache. I got to know from internet that I need…
snesh
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