: Lately we are noticing below exception in our solr logs. This happens : sometimes once or twice a day on a few cores.
the error you are seing here is a really low level HTTP communications error, below hte level of solr... : Caused by: java.io.IOException: Invalid chunk header : at : org.apache.coyote.http11.filters.ChunkedInputFilter.doRead(ChunkedInputFilter.java:133) : at : org.apache.coyote.http11.InternalInputBuffer.doRead(InternalInputBuffer.java:710) : at org.apache.coyote.Request.doRead(Request.java:428) : at "chunking" is a feature of HTTP that lets clients stream an arbitrary quantity of data w/o first computing and sending a Content-Length header, instead it can send smaller chunks of information prefaced by the length of the intividual chunks... https://en.wikipedia.org/wiki/Chunked_transfer_encoding This error suggest that your indexing client (the one sending Solr the XML) says it is using chunked encoding but is sending malformed chunk headers. -Hoss