Home | About | Sematext search-lucene.com search-hadoop.com
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB
 Search Hadoop and all its subprojects:

Switch to Threaded View
Zookeeper >> mail # user >> Get sequence number without node creation


Copy link to this message
-
Get sequence number without node creation
Hello.

I have a feature request I'd like to discuss: How about a call that will
give next sequential node number without node creation. Main reason is
that in many cases this would allow retries without leak on reconnect, e.g.:
Now:
1) create(SEQUENTIAL) - disconnect - retry - and you've just leaked a node
Can be
2) incrementCounter() - create(name). And you can make a retry in any
place. The worst thing that can occur is that you will have a hole in
your numbering

Another cases this can help are simple counters (no need to create nodes
at all) or simply different sequential nodes naming schema.

Best regards, Vitalii Tymchyshyn
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB