Yeah, the project should never use built in serialization. I'd file a JIRA issue. We should remove this when we can.
- Mark On Sun, May 6, 2018 at 9:39 PM Will Currie <w...@currie.id.au> wrote: > Premise: During an upgrade I should be able to run a 7.3 pull replica > against a 7.2 tlog leader. Or vice versa. > > Maybe I'm totally wrong in assuming that! > > Assuming that's correct it looks like adding a new method[1] to > SolrResponse has broken binary compatibility. When I try to register a new > pull replica using the admin api[2] I get an HTTP 500 responseI see this > error logged: java.io.InvalidClassException: > org.apache.solr.client.solrj.SolrResponse; local class incompatible: stream > classdesc serialVersionUID = 3945300637328478755, local class > serialVersionUID = -793110010336024264 > > The replica actually seems to register ok it just can't read the response > because the bytes from the 7.2 leader include a different serialVersionUID. > > Should SolrResponse include a serialVersionIUID? All subclasses too. > > It looks like stock java serialization is only used for these admin > responses. Query responses use JavaBinCodec instead.. > > Full(ish) stack trace: > > ERROR HttpSolrCall null:org.apache.solr.common.SolrException: > java.io.InvalidClassException: org.apache.solr.client.solrj.SolrResponse; > local class incompatible: st > ream classdesc serialVersionUID = 3945300637328478755, local class > serialVersionUID = -7931100103360242645 > at > org.apache.solr.client.solrj.SolrResponse.deserialize(SolrResponse.java:73) > at > > org.apache.solr.handler.admin.CollectionsHandler.sendToOCPQueue(CollectionsHandler.java:348) > at > > org.apache.solr.handler.admin.CollectionsHandler.invokeAction(CollectionsHandler.java:256) > at > > org.apache.solr.handler.admin.CollectionsHandler.handleRequestBody(CollectionsHandler.java:230) > at > > org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:195) > at > org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:736) > at > > org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:717) > at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:498) > at > > org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:384) > at > > org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:330) > > [1] > > https://github.com/apache/lucene-solr/commit/5ce83237e804ac1130eaf5cf793955667793fee0#diff-b809fa594f93aa6805381029a188e4e2R46 > [2] > > http://localhost:8983/solr/admin/collections?action=ADDREPLICA&collection=blah&shard=shard1&node=blah&type=pull > > Thanks, > Will > -- - Mark about.me/markrmiller
