Florian Hockmann
Explore posts from serversJJanusGraph
•Created by Florian Hockmann on 5/24/2023 in #questions
Plans for the Hadoop integration
Notice https://docs.janusgraph.org/advanced-topics/hadoop/ from JanusGraph documentation about JanusGraph and Hadoop integration, would like to know where we could get more information on the project plan/status. Thanks,
8 replies
JJanusGraph
•Created by Florian Hockmann on 5/24/2023 in #questions
Problem with setting up JanusGraph with Solr on k8s
Hi All,
I am trying to connect my JanusGraph instance to Solr. Both are hosted on K8s cluster.
I am using JanusGraph docker image version:1.0.0-rc2 (Looks like it is using solrJ 8.11.2)
For Solr I am using following helm charts from: https://solr.apache.org/operator/resources.html The chart version is 0.7.0 and as per release notes it is deploying Solr 8.11.0 and I am deploying Solr as SolrCloud.
I am getting following exceptions:
ERROR org.apache.tinkerpop.gremlin.server.util.ServerGremlinExecutor.<init> - Could not invoke constructor on class org.janusgraph.graphdb.management.JanusGraphManager (defined by the 'graphManager' setting) with one argument of class Settings
Caused by: java.lang.IllegalArgumentException: Could not instantiate implementation: org.janusgraph.diskstorage.solr.SolrIndex
Caused by: java.lang.reflect.InvocationTargetException
Caused by: java.lang.NoSuchMethodError: 'java.lang.Object org.noggit.ObjectBuilder.getValStrict()'
at org.apache.solr.common.util.Utils.fromJSON(Utils.java:319) ~[solr-solrj-8.11.2.jar:8.11.2 17dee71932c683e345508113523e764c3e4c80fa - mdrob - 2022-06-13 11:27:56]
at org.apache.solr.common.util.Utils.fromJSON(Utils.java:305) ~[solr-solrj-8.11.2.jar:8.11.2 17dee71932c683e345508113523e764c3e4c80fa - mdrob - 2022-06-13 11:27:56]
at org.apache.solr.common.cloud.ClusterState.load(ClusterState.java:245) ~[solr-solrj-8.11.2.jar:8.11.2 17dee71932c683e345508113523e764c3e4c80fa - mdrob - 2022-06-13 11:27:56]
at org.apache.solr.common.cloud.ZkStateReader.refreshLegacyClusterState(ZkStateReader.java:639) ~[solr-solrj-8.11.2.jar:8.11.2 17dee71932c683e345508113523e764c3e4c80fa - mdrob - 2022-06-13 11:27:56]
Logs indicate that is was able to connect to ZooKeeper.
Based on search, the error indicates a mismatch in noggit version. Looks like Solr code uses a forked version of noggit.
As per janusGraph release notes, it is tested against Solr 8.11.1
Any suggestions around how to debug or mitigate this issue?
Thanks in advance.
10 replies
AOAnswer Overflow
•Created by Florian Hockmann on 5/24/2023 in #questions
How to enable in a forum channel
I want to enable Answer Overflow on our Discord Server, but am currently failing to do so unfortunately :/ The Quick Start of the docs tells me to post
/channel-settings in the channel to enable it (after inviting the bot to the server). But how do I do that in a forum channel? I tried to create a new thread there where I just used that as the title and the first message, but nothing happened. Is there some other way to post such a command in a forum channel or is there maybe a completely different problem?6 replies