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Questions tagged [gemfire]

Pivotal GemFire is a distributed in-memory database developed in Java that provides real-time data management for applications, consistent transactional storage across nodes, and resilient clustering.

Pivotal GemFire is a data management platform that provides real-time, consistent access to data-intensive applications throughout widely distributed cloud architectures.

GemFire pools memory, CPU, network resources, and optionally local disk across multiple processes to manage application objects and behavior. It uses dynamic replication and data partitioning techniques to implement high availability, improved performance, scalability, and fault tolerance. In addition to being a distributed data container, Pivotal GemFire is an in-memory data management system that provides reliable asynchronous event notifications and guaranteed message delivery.

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Getting Entity Framework to set LONGs to zero instead of requiring a nullable property

We have a database-first Entity Framework 6.1.3 project that is serializing to a Java-based caching product (in addition to normal SQL Server persistence). As a result, none of the domain classes in the project can have nullable LONGs. They aren't…
user6481358
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How to replicate non string data in geode with redis adaptor

In most cases, Geode allocates one partitioned region for each data structure. For example, each Sorted Set is allocated its own partitioned region, in which the key is the user data and the value is the user-provided score, and entries are…
Shivam Mitra
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Geode Authentication produces Handshake rejected by server

I've got a Geode system going with locator, server, 2 local native clients, a remote client and HTTPS REST clients. We now require to further authenticate the REST clients to include username and password checks on REST actions, which means setting…
rupweb
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SnappyData : java.lang.OutOfMemoryError: GC overhead limit exceeded

I have 1.2GB of orc data on S3 and I am trying to do the following with the same : 1) Cache the data on snappy cluster [snappydata 0.9] 2) Execute a groupby query on the cached dataset 3) Compare the performance with Spark 2.0.0 I am using a 64 GB/8…
Harsh Bafna
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Geode SecurityManager implementation

I am currently lost on the requirement to implement a SecurityManager interface in Java / Geode per Implementing Authentication. Is there standard implementation that I can point to in gemfire.properties to handle the security-username and…
rupweb
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Get geode REST API going with SSL

I've setup gemfire.properties to make the web component require SSL using ssl-enabled-components=web and setting up a keystore. The locator and server are starting ok and GFSH connects to the JMX manager. However, when I try and start the Swagger UI…
rupweb
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GemFire CacheLoader from Cassandra

In my project using GemFire with Cassandra, my CacheLoader was able to pull data from Cassandra, however, the data was not available in GemFire. After getting the data from Cassandra, the data is not being updated in GemFire. I have used code…
Vigneshwaran
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Storing Protobufs in Gemfire/Geode?

Is there a way to store Protobufs in a Gemfire cache by using some sort of pluggable serialization instead of the Gemfire provided PDX serialization? My environment uses Gemfire 8.2.5 and Spring Data Gemfire 1.9.6 I'm looking at building a WAN…
Pete
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why is there difference in statistics shown by unix and Java RunTime

I am having some memory issues with my application and need help understanding these statistics. Unix 'top' shows these stats for my process- VSZ: 37.4g RSS: 20.0g So, this means 20g is currently swapped in for the process and in use. However,…
user236215
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System.IO.FileNotFoundException with Pivotal.Gemfire.dll

I am installing a C# windows service that uses Geode onto a UAT Windows 2012 server. The referenced dll (like log4net, newtonsoft.json and QuickFix) are working except for Pivotal.Gemfire.dll When I start the service I get…
rupweb
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How to compare two tables in Cassandra

I have to compare two tables in Cassandra to get the differences. Here is the requirement. We have to perform inventory count where we’ll enter/scan each and every items in stock and after finish we’ll compare all with the master inventory table to…
Saurabh
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When should an embedded Geode/Gemfire locator be used?

The Pivotal Running Geode Locator Processes documentation states: "You can run the locator standalone or embedded within another Geode process. Running your locators standalone provides the highest reliability and availability of the locator…
wyck
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http rest api delete entries in geode region

I have setup the Geode rest API and can run get and queries, via Chrome, on a region for example: http://localhost:8080/gemfire-api/v1/items When I try and delete entries in a region according to Developing REST Applications by using the following…
rupweb
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How can I write into Geode using the Redis adapter and then read / react to events using the Geode client?

I'm trying to do the following: Put some data into geode using the redis connector React to some key create / update events using a CacheListener Read that data using the Geode client and it's entrySet method on the Region. I already had trouble…
Crystark
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GemFire : OQL problems

I want to perform this query in GemFire select a from /regionA a,/regionB b where sqrt(sqr(a.x-b.x)+sqr(a.y-b.y)) < a.d but some operators are not supported such as +, - ... is there any solution to perform such queries ?
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