I have read in multiple locations about Ignite having potential issues with IPv6 and we have been seeing similar communication issues within our Kubernetes setup with Ignite, where the communications spi seems to randomly fail. The Ignite docs state that “Ignite tries to support IPv4 and IPv6 but this c…
Tag: ignite
Apache Ignite 2.11.0 :: Missing ignite-spring-tx-ext in maven repository
We are trying to upgrading from 2.9.1 to 2.11.0 and we have already using org.apache.ignite.transactions.spring.SpringTransactionManager which is now not available in core lib, when we checked docs https://ignite.apache.org/docs/latest/extensions-and-integrations/spring/spring-tx#maven-configuration its sugge…
Apache Ignite: What is best practice to fire/emit user defined events in Java?
I want to emit a user defined Ignite event but haven’t found any examples or implementations other than the Ignite sources, which uses non-API methods. Can someone explain how to do this? TIA Answer After re-reading the docs i found a useful hint. The brief description of recordLocal(Event evt): After b…
Adjust classpath / change spring version in azure databricks
I’m trying to use Apache Spark/Ignite integration in Azure Databricks. I install the org.apache.ignite:ignite-spark-2.4:2.9.0 maven library using the Databricks UI. And I have an error while accessing my ignite cahces: Here the AbstractApplicationContext is compiled with ReflectionUtils of different spr…
How do I make sure my apache Ignite 2.x distributed cache puts are asynchornous
Below I have a distributed cache example using apache ignite. I want to make it so when I do a cache put operation: cache.put(i, new X12File(“x12file” + i, LocalDateTime.now().toString())); that it is completely asynchronous. Meaning my put operation should be super fast, and the pushing to the re…
Apache Ignite: Caches unusable after reconnecting to Ignite servers
I am using Apache Ignite as a distributed cache and I am running into some fundamental robustness issues. If our Ignite servers reboot for any reason it seems like this breaks all of our Ignite clients, even after the Ignite servers come back online. This is the error the clients see when interacting with cac…
How to fix Ignite performance issues?
We use Ignite 2.7.6 in both server and client modes: two server and six clients. At first, each app node with client Ignite inside had 2G heap. Each Ignite server node had 24G offheap and 2G heap. With last app update we introduced new functionality which required about 2000 caches of 20 entires (user groups)…
Ignite heap not release, this is a memery leak?
I have a 20 minute pressure test during which the free JVM heap size drops from 97% to 3%. Even if I wait 5 hours, the amount of free space does not change. If I try to have a test again, the GC has too much work and causes a long JVM pause. I use 2.7 Ignite, I do not