go_live - format version not supported

[#1]

I have a data flow which uses the MR Morphline JAR. The index creation seems to work fine (the MR job itself reports success), but uploading the new indices (the go_live option) throws an Exception. In the Solr logs, I get the following messages:

15:26:09	ERROR	CoreAdminHandler	ERROR executing merge:
15:26:09	ERROR	SolrCore	org.apache.lucene.index.IndexFormatTooNewException: Format version is not supported (resource: _2.nv...
15:26:09	ERROR	SolrDispatchFilter	null:org.apache.lucene.index.IndexFormatTooNewException: Format version is not supported (resource: ...

I've looked about a bit, but I can't seem to find any indication of what might cause this. Is it a problem with my collection configuration?

[#2]

Can you try using --reducers=0 and let us know if the error remains?

[#3]

Sorry Wolfgang, I tried running with --reducers=0, but the problem remains: Format version not supported. 

[#4 · Accepted solution]

Looks like your solr version might be older than what we ship with Cloudera Search. I recommend upgrading to search-1.0.0.

Wolfgang.

[#5]

Just to follow-up, this was my bad: the client had solr-mapreduce from the release yum repo (version 1.0), while the cluster was still on the beta (0.9.3). Once I downgraded my client the merge worked fine.