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Posted to dev@zookeeper.apache.org by Enrico Olivelli <eo...@gmail.com> on 2020/03/18 18:27:31 UTC

Restore ZKUtil.deleteRecursive in order to help compatibility of applications with 3.5 and 3.6

In HerdDB project (https://github.com/diennea/herddb) we are using
BookKeeper that in turn uses ZKUtil.deleteRecursive and we are not
able to switch to ZooKeeper 3.6.0

This is the error:
java.lang.NoSuchMethodError:
org.apache.zookeeper.ZKUtil.deleteRecursive(Lorg/apache/zookeeper/ZooKeeper;Ljava/lang/String;)V
Apart from a  fix BookKeeper (https://github.com/apache/bookkeeper/issues/2292),
we should take into consideration to restore that signature (adding
some dummy method that calls the new one) in order to ease adoption of
ZooKeeper 3.6.x

In fact it is very common that an application uses multiple ZooKeeper
based libraries, like HBase, BookKeeper, Pulsar, Kafka...and the user
(in this case users of HerdDB) cannot upgrade to 3.6 until every other
dependency is able to work with 3.6.0.

If the fix is easy, like in this case, it is worth to help the community.
I will send a fix.

More info in:
https://issues.apache.org/jira/browse/ZOOKEEPER-3763

Enrico