Apache atlas 2.1 configuration connection cassandra backend [help]

Question

for a future poc i need to deploy an apache atlas 2.1 stack but i can't found the parameter for the cassandra backend connection in their documentation. if anyone got a link or had already made a implementation with password authentication.

this is my current config file if it can help.

atlas.graph.storage.backend=cql
atlas.graph.storage.hostname=cassandra
atlas.graph.storage.cassandra.keyspace=JanusGraph

atlas.graph.storage.clustername=cassandra
atlas.graph.storage.port=9042

atlas.EntityAuditRepository.impl=org.apache.atlas.repository.audit.CassandraBasedAuditRepository
atlas.EntityAuditRepository.keyspace=atlas_audit
atlas.EntityAuditRepository.replicationFactor=1

atlas.graph.index.search.backend=solr
atlas.graph.index.search.solr.mode=cloud
atlas.graph.index.search.solr.zookeeper-url=zookeeper:2181
atlas.graph.index.search.solr.zookeeper-connect-timeout=60000
atlas.graph.index.search.solr.zookeeper-session-timeout=60000
atlas.graph.index.search.solr.wait-searcher=true

atlas.graph.index.search.max-result-set-size=150

atlas.notification.embedded=false
atlas.data=${sys:atlas.home}/data/kafka

atlas.notification.create.topics=true
atlas.notification.replicas=1
atlas.notification.topics=ATLAS_HOOK,ATLAS_ENTITIES
atlas.notification.log.failed.messages=true
atlas.notification.consumer.retry.interval=500
atlas.notification.hook.retry.interval=1000

atlas.enableTLS=false

atlas.authentication.method.kerberos=false
atlas.authentication.method.file=true

atlas.authentication.method.ldap.type=none

atlas.authentication.method.file.filename=${sys:atlas.home}/conf/users-credentials.properties


atlas.rest.address=http://localhost:21000

atlas.audit.hbase.tablename=apache_atlas_entity_audit
atlas.audit.zookeeper.session.timeout.ms=1000
atlas.audit.hbase.zookeeper.quorum=atlas-zookeeper:2181

atlas.server.ha.enabled=false
atlas.authorizer.impl=simple
atlas.authorizer.simple.authz.policy.file=atlas-simple-authz-policy.json
atlas.rest-csrf.enabled=true
atlas.rest-csrf.browser-useragents-regex=^Mozilla.*,^Opera.*,^Chrome.*
atlas.rest-csrf.methods-to-ignore=GET,OPTIONS,HEAD,TRACE
atlas.rest-csrf.custom-header=X-XSRF-HEADER

atlas.metric.query.cache.ttlInSecs=900

######### Gremlin Search Configuration #########

#Set to false to disable gremlin search. atlas.search.gremlin.enable=false

theexact issue is :

Caused by: com.datastax.driver.core.exceptions.AuthenticationException: Authentication error on host cassandra/172.20.180.174:9042: Host cassandra/xx.xx.xx.xx:9042 requires authentication, but no authenticator found in Cluster configuration

thanks for any help

Answer 1

You need to look into the JanusGraph documentation for that. According to it, there are two properties there: storage.username and storage.password that could be used prefixed by atlas.graph.storage.username: atlas.graph. & atlas.graph.storage.password