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Questions tagged [gridgain]

GridGain is a High Performance In-Memory Platform that enables processing of terabytes of data, in-memory, on 1000s of computers, in less than a second. (Source GridGain.com)

GridGain In-Memory Data Fabric is Java-based middleware for in-memory processing of big data in a distributed environment. It is based on high performance in-memory data platform that integrates world’s fastest MapReduce implementation with In-Memory Data Grid technology delivering easy to use and easy to scale software. Using GridGain you can process terabytes of data, on 1000s of nodes in under a second.

GridGain typically resides between business, analytics or BI applications and long term data storage such as RDBMS (e.g. Oracle, MySQL, etc), ERP, or Hadoop HDFS, and provides in-memory data platform for high performance, low latency data processing and computations.

568 questions
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which ports should be exposed in a docker container for apache ignite?

I'm using apache ignite for in-memory cache. I want to deploy my app using docker with swarm mode. Which ports should be exposed in a container? I see in ignite docker module that these ports are exposed 11211 47100 47500 49112. But in my app log I…
jrforever
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how to improve query performance in apache ignite

I have setup an ignite cluster of two servers and one client. The cluster configuration is as follows : IgniteConfiguration icfg = new…
Aniketh Jain
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ignite query cache with value as list of objects

I am using ignite cache with key as String and value as Collection of objects (similar type) say List. Now i would like to query on the students stored in cache let's say 5 top scored students. defined the configuration as…
sridhar
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Ignite and Spring Boot

How do I use Ignite with Spring Boot? I googled it but without success. Has anyone experience with the combination of Spring Boot and Ignite? Is that the correct way to run Ignite in with Spring Boot? Apache Ignite Loading Twice with Spring-Boot?
Manuel
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How to output gridgain/ignite statistics to a file

How can i capture operation statistics such as puts/sec, gets/sec per server from ignite/gridgain. Is it possible to output them into some file so that we can analyze them later?
Rahul Diyewar
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GridGain: MapReduce with node-local data processing?

I am trying to perform some numerical computation on a large distributed data set. The algorithms fit the MapReduce model well with the additional property that output from the map step is small in size compared to the input data. Data can be…
Qwert Zuiopü
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Starting GridGain in debug mode

Need to figure out why my code is not working, need more information. Debug messages would probably help. How to start GridGain nodes in debug mode?
gridgain
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Starting a GridGain Node

When I start GridGain node, I get the following exception: Exception in thread "main" java.lang.NoClassDefFoundError: org/gridgain/grid/loaders/cmdline/GridCommandLineLoader How to fix it?
gridgain
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Apache Ignite: IGNITE_SQL_MERGE_TABLE_MAX_SIZE. Fetched result set was too large

Dear Ignite specialists, When running following SQL query, that join a few tables: SELECT COUNT(p.platformCode) FROM "platformCache".Platform p LEFT JOIN ( SELECT h1.platformCode, SUM(CASEWHEN(h1.nodeType = ?, 1, 0)) AS…
Montombe
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How to solve the problem of Ignite clients waiting continuously when executing Insert statements

Problem scenario: The Ignite server of a node. Start a standard client, create a Table, and continuously insert data into the Table using the Insert statement. At the same time as inserting data, another standard client started and deleted the…
xiaoxiaodingdong
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What is the difference between starting Ignite using run.sh script inside docker image and using Ignition.Start() method?

I know two ways to start Ignite cluster - one is running it as a docker container using run.sh script inside apacheignite/ignite image and the other is by running Ignition.Start() method inside the app, which allows us to have thick client ready to…
Isard
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PME on thick client node join in Ignite

I am using Ignite 2.9.1 and in our Ignite cluster setup we have server nodes and thick client nodes. I found that when client node join the topology, it triggers PME but surprisingly it shouldn't as per below documentation: Log snippet: To cross…
Vikas Tyagi
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Max node advisable for S3 based discovery in Ignite

In our Cluster setup, we have 5-10 server nodes and 10-200 clients nodes. We dynamically scale up or down number of clients nodes based on work payloads. As of now we are using S3 based discovery but wanted to know Ignite recommendation for dynamic…
Vikas Tyagi
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Apache Ignite : Near Cache communication with Data node

We have near caches configured with main caches (in data node). Looking at documentation it says "Near caches are fully transactional and get updated or invalidated automatically whenever the data changes on the server nodes." I am trying to…
Lokesh
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Apache Ignite Client

I wanted to understand the pro's/cons of using a client node within a cluster vs a external thin client. Ofcourse the thin client will be less chatty Vs a client node and hence less n/w interactions. Changes in the cluster topology(nodes…
Victor
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