Shawn, the format that I am referencing is "filestream", which starts with 2 bytes carrying file size, then 4 bytes carrying checksum (optional) and then the actual bits of the file.
Thanks, Greg ----- Original Message ----- From: "Shawn Heisey" <s...@elyograg.org> To: solr-user@lucene.apache.org Sent: Sunday, August 17, 2014 12:28:12 AM Subject: Re: How to restore an index from a backup over HTTP On 8/16/2014 4:03 AM, Greg Solovyev wrote: > Thanks Shawn, this is a pretty cool idea. Adding the handler seems pretty > straight forward, but the main concern I have is the internal data format > that ReplicationHandler and SnapPuller use. This new handler as well as the > code that I've already written to download the index files from Solr will > depend on that format. Unfortunately, this format is not documented and is > not abstracted by SolrJ, so I wonder what I can do to make sure it does not > change on us without notice. I am not really sure what format you're referencing here, but I'm about 99% sure the format *over the wire* is javabin. When the javabin format changed between 1.4.1 and 3.1.0, replication between those versions became impossible. Historical: The Solr version made a huge leap after the Solr and Lucene development was merged -- it was synchronized with the Lucene version. There are no 1.5, 2.x, or 3.0 versions of Solr. https://issues.apache.org/jira/browse/SOLR-2204 Thanks, Shawn
