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Questions tagged [gelly]

Gelly is the graph processing library for the Apache Flink distributed streaming engine.

Gelly is a Graph API for Flink. It contains a set of methods and utilities which aim to simplify the development of graph analysis applications in Flink. In Gelly, graphs can be transformed and modified using high-level functions similar to the ones provided by the batch processing API. Gelly provides methods to create, transform and modify graphs, as well as a library of graph algorithms.

Learn more about Gelly here.

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use collect() and env.execute() in one flink job

I'm trying to write a computation in Flink which requires two phases. In the first phase, I create a Graph and get its vertex ids: List ids = graph.getVertexIds().collect(); In the second phase, I'd like to use these ids to run…
Fariba Hashemi
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type mismatch flink graph community

I am trying to execute a very simple code for community detection but it returns an error: import org.apache.flink.graph.library.CommunityDetection import org.apache.flink.graph._ import org.apache.flink.graph.scala.Graph import…
Dzmitry Haikov
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Flink Gelly Path/Trail Usecase

our team is new to Gelly api. We are looking to implement a simple use case that will list all paths originating from an initial vertice - for e.g. input edge csv file is 1,2\n2,3\n3,4\n1,5\n5,6 the required output will be (the full path that starts…
Phoenix
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flink - An error occurred creating the temp table

Team, I am getting the below error in flink. org.apache.flink.client.program.ProgramInvocationException: The program execution failed: Job execution failed. at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:413) …
Sajeev
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Can Gelly Library be used for graph queries in Flink similar to Graph Frame in Spark

Can Flink graph library Gelly do graph partitioning, graph pattern matching, joins, etc ..
Amr Azzam
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