Questions tagged [ignite]

Apache Ignite™ is a memory-centric distributed database, caching, and processing platform for transactional, analytical, and streaming workloads delivering in-memory speeds at petabyte scale. It provides high-performance, in-memory computing capabilities for large data sets.

What is Apache Ignite for?

Apache Ignite provides a framework for in-memory computing operations on large scale data sets. It supports the following features:

  • Memory-centric, strongly consistent, distributed storage
  • Distributed SQL - supports ANSI SQL in-memory and on-disk transactional database
  • Distributed Key-Value - supports in-memory and on-disk key-value transactional data grid
  • In-Memory Compute grid - supports collocated computations and executor services
  • In-Memory Service grid - supports clusters and compute contracts
  • In-Memory Streaming - supports data streaming services like Kafka
  • In-Memory File system - supports the IGFS (Ignite filesystem)

Apache Ignite architecture combines the performance and scale of in-memory computing together with the disk durability and strong consistency in one system. When native persistence is turned on, Ignite functions as a memory-centric system-of-record, where most of the processing happens in memory on cached data, but the superset of data and indexes gets persisted to disk.

When persistence is turned off, Ignite functions as a memory-only store, in which case it can be treated as a Distributed Cache, In-Memory Database (IMDB) or In-Memory Data Grid (IMDG).

Resources

2980 questions
0
votes
0 answers

What configurations are needed in Kafka-Ignite Sink Connector when connectivity is remote?

I did not find any specific documentation on Apache Ignite Sink Connector. I am using a Kafka ignite sink connector, for which I have added jars and I am able to see the connector in control center. I want to push Kafka topic data in ignite where…
0
votes
0 answers

Kafka Ignite sink connector remote node data transfer

I am trying to send data from Kafka to Ignite using Ignite Sink Connector. I have done little experiments : When I am running Kafka and Ignite on same machine locally with connector, I am able to send the data. - In this case I have provided xml…
0
votes
1 answer

Ignite server hang there when listen to remote event: EVT_NODE_LEFT

I have 2 ignite servers with following discovery spi configured TcpDiscoveryMulticastIpFinder ipFinder = new TcpDiscoveryMulticastIpFinder(); ipFinder.setAddresses(Arrays.asList("127.0.0.1:47500..47509")); discoSpi.setIpFinder(ipFinder); Both of…
Henrik
  • 123
  • 1
  • 2
  • 10
0
votes
1 answer

How to use SQL UNION with Ignite Caches

I was having a ignite cache and doing sql queries as follows. IgniteCache cache = ignite.cache(CACHE_NAME); private static final String sql = "Select timestamp from cache1 where orderId = ? and timestamp <= ? and…
sachith
  • 129
  • 2
  • 12
0
votes
0 answers

Apache ignite cluster replication to another cluster

I have a use-case where I have to replicate Apache Ignite data(persistent + non-persistent) from one cluster(hosted on AWS) to another(hosted on GCP) and eventually shut down the original cluster. I have come across GridGain. They have DataCenter…
Kshitij Bhadage
  • 410
  • 1
  • 4
  • 16
0
votes
1 answer

Ignite - explain about 31100 time server port

Can anyone please explain, why the ignite is using the 31100 port. I have got the info in web as it is a time server port. I couldn't get anything other than this info.
Praveen
  • 1
  • 1
0
votes
0 answers

Unable to find kafka-ignite connector files in ApacheIgnite 2.10.0 binary release

I have downloaded apache ignite 2.10.0 binary release. I am unable find Kafka-ignite folder which should be part of libs/optional in package which contains ignite sink connector jars and required instruction. But same is present in earlier versions.…
0
votes
0 answers

Thread stuck when accessing atomic reference or long on Apache Ignite

This is regarding a rather recent issue that we’ve been facing. We run 2 client instances and 26 apache ignite instances. All are AWS R4.2xLarge nodes. Recently we’ve been seeing this issue where when trying to fetch an atomicLong or…
Paul Jose
  • 23
  • 5
0
votes
1 answer

Ignite server is running with jmx disabled by default

When I start ignite, it shows the below logs [18:45:20,178][INFO][main][IgniteKernal] Remote Management [restart: on, REST: on, JMX (remote: off)] Here, JMX (remote: off) indicates that JMX is disabled but I am not able to figure out why JMX is…
Tarun Talreja
  • 163
  • 1
  • 12
0
votes
0 answers

Ignite Authentication - REST API ERROR in response

{"successStatus":2,"error":"The user name or password is incorrect [userName=[testuser]]","sessionToken":null,"response":null} Getting this REST API response on triggering authorization call for Ignite with following command: curl…
0
votes
1 answer

Loading CSV data containing string and numeric format to Ignite is failing

I am evaluating Ignite and trying to load CSV data to Apache Ignite. I have created a table in Ignite: jdbc:ignite:thin://127.0.0.1/> create table if not exists SAMPLE_DATA_PK(SID varchar(30),id_status varchar(50), active varchar, count_opening…
0
votes
1 answer

Storing keyStorePassword value encrypted in SSL configuration XML

Do I have a way to store keyStorePassword and trustStorePassword values encrypted in Ignite SSL configuration XML instead of plain text?
0
votes
2 answers

Apache Ignite Thin Client is not connect to AKS

I created an AKS and I deployed the Apache Ignite service on it. When I check the pods I can see they are working. Also, I can get the load balancer IP. I follow the official instructions of Apache and try to connect Ignite with ThinClient. I…
OguzKaanAkyalcin
  • 621
  • 2
  • 8
  • 25
0
votes
1 answer

Ignite Jdbc SQL COPY FROM command executing but not importing data

I have a java code that exports data from postgresql into a csv file and then uses ingnite COPY FROM to import into ignite tables. // PROCESSING THE FIRST TABLE String copySql = "copy (" + "select ..... from postgresql_table_1 " + …
obinini
  • 111
  • 8
0
votes
1 answer

Grid gain : Thin client - key value cache - CRUD operations using non-primary key column

I would like to know, is there a way to do CRUD operations using non primary key for a cache defined in grid gain using thin client API (Not by using sql query).
Sunny s
  • 3
  • 1
1 2 3
99
100