Hi SG, 
You should create a Jira issue, then if you can rename your PR to include the 
Jira issue code in the title (that’s the way to link the Jira issue to the 
Github PR). Also, take a look at https://wiki.apache.org/solr/HowToContribute.

Tomás

> On Jun 12, 2017, at 9:14 AM, S G <sg.online.em...@gmail.com> wrote:
> 
> Hi Zheng,
> 
> We are using 6.3 version.
> I have created a small PR that addresses this issue of better error message.
> Please merge the same if it looks ok.
> https://github.com/apache/lucene-solr/pull/212/files 
> <https://github.com/apache/lucene-solr/pull/212/files>
> 
> Thanks
> SG
> 
> 
> On Sun, Jun 11, 2017 at 8:45 PM, Zheng Lin Edwin Yeo <edwinye...@gmail.com 
> <mailto:edwinye...@gmail.com>> wrote:
> Which version of Solr are yo using?
> 
> Also, I believe you should send this message to the user list at 
> solr-u...@lucene.apache.org <http://lucene.apache.org/>
> 
> Regards,
> Edwin
> 
> On 12 June 2017 at 02:45, S G <sg.online.em...@gmail.com 
> <mailto:sg.online.em...@gmail.com>> wrote:
> Hi,
> 
> Recently I ran into an issue where the logs were showing the following:
> 
> 
> org.apache.solr.client.solrj.impl.CloudSolrClient$RouteException: Error from 
> server at http://solr-host:8983/solr/loadtest_shard1_replica1 
> <http://solr-host:8983/solr/loadtest_shard1_replica1>: old version and new 
> version are not comparable: class java.lang.Long vs class java.lang.Integer: 
> null
>         at 
> org.apache.solr.client.solrj.impl.CloudSolrClient.directUpdate(CloudSolrClient.java:765)
>  ~[load-client.jar]
>         at 
> org.apache.solr.client.solrj.impl.CloudSolrClient.sendRequest(CloudSolrClient.java:1173)
>  ~[load-client.jar]
>         at 
> org.apache.solr.client.solrj.impl.CloudSolrClient.requestWithRetryOnStaleState(CloudSolrClient.java:1062)
>  ~[load-client.jar]
>         at 
> org.apache.solr.client.solrj.impl.CloudSolrClient.request(CloudSolrClient.java:1004)
>  ~[load-client.jar]
>         at 
> org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:149) 
> ~[load-client.jar]
>         at org.apache.solr.client.solrj.SolrClient.add(SolrClient.java:106) 
> ~[load-client.jar]
>         at org.apache.solr.client.solrj.SolrClient.add(SolrClient.java:123) 
> ~[load-client.jar]
>         at WriteLoadTest$IndexWorker.addDocsToSolr(WriteLoadTest.java:629) 
> [load-client.jar]
>         at WriteLoadTest$IndexWorker.run(WriteLoadTest.java:573) 
> [load-client.jar]
> Caused by: 
> org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error 
> from server at http://solr-host:8983/solr/loadtest_shard1_replica1 
> <http://solr-host:8983/solr/loadtest_shard1_replica1>: old version and new 
> version are not comparable: class java.lang.Long vs class java.lang.Integer: 
> null
>         at 
> org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:593)
>  ~[load-client.jar]
>         at 
> org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:262)
>  ~[load-client.jar]
>         at 
> org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:251)
>  ~[load-client.jar]
>         at 
> org.apache.solr.client.solrj.impl.LBHttpSolrClient.doRequest(LBHttpSolrClient.java:435)
>  ~[load-client.jar]
>         at 
> org.apache.solr.client.solrj.impl.LBHttpSolrClient.request(LBHttpSolrClient.java:387)
>  ~[load-client.jar]
>         at 
> org.apache.solr.client.solrj.impl.CloudSolrClient.lambda$directUpdate$0(CloudSolrClient.java:742)
>  ~[load-client.jar]
>         at 
> org.apache.solr.client.solrj.impl.CloudSolrClient$$Lambda$8/745780984.call(Unknown
>  Source) ~[?:?]
>         at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
> ~[?:1.8.0_51]
>         at 
> org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:229)
>  ~[load-client.jar]
>         at 
> org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor$$Lambda$7/725894523.run(Unknown
>  Source) ~[?:?]
>         ... 3 more
> 
> 
> The message above is not clear at all.
> Which document is it talking about?
> I have so many documents being ingested and it's hard to figure out the same.
> It would have been nice if the message included a document ID too.
> 
> 
> Thanks
> SG
> 
> 
> 
> 
> 

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