You probably need to talk to the SiteCore people. The Apache project doesn’t have much insight into Sitecore, nor does it maintain the .net version of a Solr client…
Best, Erick > On Aug 20, 2019, at 7:16 PM, Ritesh Kumar (Avanade) > <v-kur...@microsoft.com.INVALID> wrote: > > Hello, > > We have been using solr 6.6.3 with Sitecore 9, however currently we seem to > be observing the below issue while rebuilding the index "Invalid Date in Date > Math String" > We already applied the patch located at the below location but it did not fix > the issue: > https://github.com/SitecoreSupport/Sitecore.Support.178247/releases/tag/8.2.2.0 > > Please let me know if anyone was able to fix this issue with any other > method. (Note: I have updated my Sitecore support ticket as well with the > same details) > > 5980 22:10:20 WARN [Index=xxxxxxx _index] Crawler : AddRecursive DoItemAdd > failed - {F8057A68-6A5A-43ED-8781-BFA36D4DF3EE} > Exception: SolrNet.Exceptions.SolrConnectionException > Message: <?xml version="1.0" encoding="UTF-8"?> > <response> > <lst name="responseHeader"><int name="status">400</int><int > name="QTime">325</int></lst><lst name="error"><lst name="metadata"><str > name="error-class">org.apache.solr.common.SolrException</str><str > name="root-error-class">java.time.format.DateTimeParseException</str><str > name="error-class">org.apache.solr.common.SolrException</str><str > name="root-error-class">java.time.format.DateTimeParseException</str><str > name="error-class">org.apache.solr.common.SolrException</str><str > name="root-error-class">java.time.format.DateTimeParseException</str><str > name="error-class">org.apache.solr.common.SolrException</str><str > name="root-error-class">java.time.format.DateTimeParseException</str><str > name="error-class">org.apache.solr.common.SolrException</str><str > name="root-error-class">java.time.format.DateTimeParseException</str><str > name="error-class">org.apache.solr.common.SolrException</str><str > name="root-error-class">java.time.format.DateTimeParseException</str><str > name="error-class">org.apache.solr.common.SolrException</str><str > name="root-error-class">java.time.format.DateTimeParseException</str><str > name="error-class">org.apache.solr.update.processor.DistributedUpdateProcessor$DistributedUpdatesAsyncException</str><str > > name="root-error-class">org.apache.solr.update.processor.DistributedUpdateProcessor$DistributedUpdatesAsyncException</str></lst><str > name="msg">7 Async exceptions during distributed update: > Error from server at x.x.x.x:8983/solr/xxxxxxxx_index_shard2_replica2: Bad > Request > > request: > x.x.x.x:8983/solr/xxxxxxxx_index_shard2_replica2/update?update.distrib=TOLEADER&distrib.from=https%3A%2F%2F40.113.227.147%3A8983%2Fsolr%xxxxxxxx_index_shard1_replica3%2F&wt=javabin&version=2 > Remote error message: Invalid Date in Date Math String:'20180730T164926Z' > Error from server at x.x.x.x:8983/solr/xxxxxxxxx_index_shard1_replica2: Bad > Request > > request: > x.x.x.x:8983/solr/xxxxxxx_index_shard1_replica2/update?update.distrib=TOLEADER&distrib.from=https%3A%2F%2F40.113.227.147%3A8983%2Fsolr%2Fxxxxxxx_index_shard1_replica3%2F&wt=javabin&version=2 > Remote error message: Invalid Date in Date Math String:'20170901T183400Z' > Error from server at x.x.x.x:8983/solr/xxxxxxx_index_shard2_replica2: Bad > Request > > request: > x.x.x.x:8983/solr/xxxxxxx_index_shard2_replica2/update?update.distrib=TOLEADER&distrib.from=https%3A%2F%2F40.113.227.147%3A8983%2Fsolr%2Fxxxxxxx_index_shard1_replica3%2F&wt=javabin&version=2 > Remote error message: Invalid Date in Date Math String:'20171026T181027Z' > Error from server at x.x.x.x:8983/solr/xxxxxxx_index_shard2_replica2: Bad > Request > > request: > x.x.x.x:8983/solr/xxxxxxx_index_shard2_replica2/update?update.distrib=TOLEADER&distrib.from=https%3A%2F%2F40.113.227.147%3A8983%2Fsolr%2Fxxxxxxx_index_shard1_replica3%2F&wt=javabin&version=2 > Remote error message: Invalid Date in Date Math String:'20171028T070000Z' > Error from server at x.x.x.x:8983/solr/xxxxxxx_index_shard1_replica2: Bad > Request > > request: > x.x.x.x:8983/solr/xxxxxxx_index_shard1_replica2/update?update.distrib=TOLEADER&distrib.from=https%3A%2F%2F40.113.227.147%3A8983%2Fsolr%2Fxxxxxxx_index_shard1_replica3%2F&wt=javabin&version=2 > Remote error message: Invalid Date in Date Math String:'20171004T070000Z' > Error from server at x.x.x.x:8983/solr/xxxxxxx_index_shard2_replica2: Bad > Request > > request: > x.x.x.x:8983/solr/xxxxxxx_index_shard2_replica2/update?update.distrib=TOLEADER&distrib.from=https%3A%2F%2F40.113.227.147%3A8983%2Fsolr%2Fxxxxxxx_index_shard1_replica3%2F&wt=javabin&version=2 > Remote error message: Invalid Date in Date Math String:'20170314T000000Z' > Error from server at x.x.x.x:8983/solr/xxxxxxx_index_shard1_replica2: Bad > Request > > request: > x.x.x.x:8983/solr/xxxxxxx_index_shard1_replica2/update?update.distrib=TOLEADER&distrib.from=https%3A%2F%2F40.113.227.147%3A8983%2Fsolr%2Fxxxxxxx_index_shard1_replica3%2F&wt=javabin&version=2 > Remote error message: Invalid Date in Date Math > String:'20170626T000000Z'</str><int name="code">400</int></lst> > </response> > > Source: SolrNet > at SolrNet.Impl.SolrConnection.PostStream(String relativeUrl, String > contentType, Stream content, IEnumerable`1 parameters) > at SolrNet.Impl.SolrConnection.Post(String relativeUrl, String s) > at SolrNet.Impl.SolrBasicServer`1.SendAndParseHeader(ISolrCommand cmd) > at > Sitecore.ContentSearch.SolrProvider.SolrBatchUpdateContext.AddRange(IEnumerable`1 > group, Int32 groupSize) > at > Sitecore.ContentSearch.SolrProvider.SolrBatchUpdateContext.AddDocument(Object > itemToAdd, IExecutionContext[] executionContexts) > at > Sitecore.ContentSearch.SolrProvider.SolrIndexOperations.ApplyPermissionsThenIndex(IProviderUpdateContext > context, IIndexable version) > at Sitecore.ContentSearch.SitecoreItemCrawler.DoAdd(IProviderUpdateContext > context, SitecoreIndexableItem indexable) > at Sitecore.ContentSearch.HierarchicalDataCrawler`1.CrawlItem(T indexable, > IProviderUpdateContext context, CrawlState`1 state) > > Nested Exception > > Exception: System.Net.WebException > Message: The remote server returned an error: (400) Bad Request. > Source: System > at System.Net.HttpWebRequest.GetResponse() > at HttpWebAdapters.Adapters.HttpWebRequestAdapter.GetResponse() > at SolrNet.Impl.SolrConnection.GetResponse(IHttpWebRequest request) > at SolrNet.Impl.SolrConnection.PostStream(String relativeUrl, String > contentType, Stream content, IEnumerable`1 parameters) > > Thanks > Ritesh >