In Janus Graph db how to get notified about new vertex/edges?

[mkj-git]

In Janus graph db, is there a way to get notified when a new vertex/edge is added/removed/updated?

One solution is this https://docs.janusgraph.org/advanced-topics/transaction-log/#log-configuration But one limitation I can see is that logIdentifier is required, can we do it without that?

[hadoopmarc]

Indeed, a logIdentifier is required, see:

janusgraph/janusgraph-core/src/main/java/org/janusgraph/graphdb/log/StandardLogProcessorFramework.java

Line 128 in 80ef1d9

Preconditions.checkArgument(StringUtils.isNotBlank(userLogName));

Another thing you could do is add creation timestamps to your graph elements and index them. That makes it possible to periodically query for the latest elements.