Github user hanm commented on a diff in the pull request:
https://github.com/apache/zookeeper/pull/180#discussion_r102282461
--- Diff: src/java/main/org/apache/zookeeper/server/ZooKeeperServer.java ---
@@ -303,15 +305,38 @@ public void loadData() throws IOException,
InterruptedException {
public void takeSnapshot(){
--- End diff --
Cross DC deployment is an interesting topic and ZooKeeper does not
intrinsically support it very well. Not saying that you don't need your snap
command (I understand it is a quick and dirty way to get things working for
your case), but here is some design that you might find useful for your
deployment:
https://www.usenix.org/system/files/conference/atc16/atc16_paper-lev-ari.pdf
The basic idea of this is to partition your data to have multiple ZK
ensembles (this loses global strong consistency) and then patch global
consistency at client side. The client library is open sourced somewhere.
https://issues.apache.org/jira/browse/ZOOKEEPER-892
This is an old issue that no one driving at moment but sounds a good fit
for your use case.
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