Could not instantiate implementation: org.janusgraph.diskstorage.es.ElasticSearchIndex

[444728248]

hello
I started hbase and didn't use es, but I made the following error

my hbase config
[root@master janusgraph]# cat conf/janusgraph-hbase.properties
storage.backend = hbase
storage.hostname = master:2181,slave2:2181,slave2:2181
cache.db-cache = true
cache.db-cache-clean-wait = 20
cache.db-cache-time = 180000
cache.db-cache-size = 0.5
gremlin.graph = org.janusgraph.core.JanusGraphFactory
storage.hbase.ext.zookeeper.znode.parent = /hbase

error
Could not instantiate implementation: org.janusgraph.diskstorage.es.ElasticSearchIndex

[pluradj]

You probably connected initially with with conf/janusgraph-hbase-es.properties. This creates a configuration in the janusgraph HBase table with Elasticsearch as the indexing backend. If you attempt to connect afterwards with conf/janusgraph-hbase.properties you would see the error you described. This is because the previous configuration is stored in the janusgraph table itself.

What you should do is either:

• drop the janusgraph table in HBase
• add a storage.hbase.table=newtablename property into your properties file, using a different value than the default (janusgraph)

If those suggestions don't help, please update this issue with more details, like the full stack trace.

[pluradj]

Also note, this issue has been discussed previously on the janusgraph-users group and also on Stack Overflow. I'd recommend searching those places for possible solutions.

[Shamsa279]

You said : drop the janusgraph table in HBase
add a storage.hbase.table=newtablename property into your properties file, using a different value than the default (janusgraph)
How can I drop the table?

[patrickboland4]

@Shamsa279 just in case you're still stuck - https://www.guru99.com/hbase-shell-general-commands.html note that you need to disable hbase tables prior to deleting them.

[iamsatyajit963]

Hi @pluradj,
if we drop the hbase janus table, then what about existing data, which are in the table?