Kafka, mail # dev - zkclient dies after UnknownHostException in zk reconnect - 2013-09-23, 14:02
 Search Hadoop and all its subprojects:

Switch to Plain View
Copy link to this message
zkclient dies after UnknownHostException in zk reconnect
Hi Everyone,

I've run into the following issue with the Kafka server. The zkclient lib
seems to die silently if there is an UnknownHostException(or any
IOException) while reconnecting the ZK session. I've filed a bug about this
with the zkclient lib(https://github.com/sgroschupf/zkclient/issues/23). The
ramifications for Kafka were the silent loss of all ephemeral nodes
associated with the affected process.

Has anyone faced this issue? If so, what is the recommended way of dealing
with this?

If there is no good solution available, would the community be open to a
patch that periodically verifies ZK connectivity?


Neha Narkhede 2013-09-24, 03:44
Sam Meder 2013-09-24, 04:33
Joel Koshy 2013-09-24, 07:32
Anatoly Fayngelerin 2013-09-24, 15:28
Neha Narkhede 2013-09-24, 15:34
Anatoly Fayngelerin 2013-09-24, 16:59
Neha Narkhede 2013-09-24, 17:47
Anatoly Fayngelerin 2013-09-24, 21:03
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