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Questions tagged [apacheignite]

70 questions
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Ignite keeps crashing with OOM

We are running a 2-client 3-server cluster. We keep seeing OOM even as we provide more heap. Below is the heap dump snapshot, any idea why we see so many CacheEvent objects, what is really happening here? Looking at the source for…
Victor
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Ignite taking Too much time to add data to Cache

I am trying to put data in Ignite Cache and it was taking too much time and making my process much slow. I have an Ignite Cache of type IgniteCache> and adding data to cache taking too much time. I am using 4 nodes in…
Ritvik Rohatgi
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How to directly Write in List data type in Ignite Cache on getting value from key ,Cache in the type of IgniteCache>

I have my Ignite Cache in form of IgniteCache cache and I have to put value in list inside IgniteCache directly but when i am trying to put value using cache.get(key).add(value) , it not adding value to the list inside cache…
Ritvik Rohatgi
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Apache Ignite : NODE_LEFT event

I wanted to understand the how a Node left event is triggered for an Apache Ignite grid. Do nodes keep pinging each other constantly to find it if nodes are present or they ping each other only when required? If ping from client node is not…
Lokesh
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Ignite cluster size using control script

I need to get ignite cluster size(no of server nodes running) preferably using control script or ignite rest api. I am able to get baseline nodes using command below but I don't see any command or rest api to return topology snapshot. Is there a way…
curious_soul
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Apache Ignite grid gets auto activated when persistence is disabled

We are having an Apache Ignite grid where we have persistence enabled but we are facing issues with persistence as we often face grid getting hung due locking while checkpointing. We now want to move to non persistence grid but the problem is that…
Lokesh
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Apache Ignite node startup error - Joining node doesn't have stored group keys

I made some changes in my dev Ignite cluster to enable persistence. Now when I start my cluster (2 node, version 2.9.0), first one starts just fine but second one doesn't seem to be. As the first one shows in log the below error [14:18:59] Joining…
Shades88
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Return index only fields in Apache Ignite Index Query

I am trying to run Index Query on Sample code and able to fetch records. Ignite docs say it is possible to configure the value type returned in response(key, value, indexed fields) but I dont see any such fields in Index Query class.(Refer Phase4 in…
curious_soul
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Scaling Apache Ignite Grid

We having scaling Apache Ignite grid where client nodes scale up and down based on load. Data nodes are our server nodes where continuous queries run. However this leads to unclean shutdown of some client nodes as we rely on SIGTERM for Ignite node…
Lokesh
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Concurrently modified some keys

I am using Ignite 2.13.x for one of my requirement, I need to maintain cache in Ignite cluster and some of the keys value will be updates concurrently and selection also happens parallel. So here i am facing issue like, java.sql.SQLException: Failed…
Ajay
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