Hi. I'm using solrj (7.3.1).
I encountered an error for delete queries that fail on an unauthorized
exception. I noticed other requests succeed.
I managed to track it down to NTLM authentications.
org.apache.http.impl.execchain.MainClientExec (line 315) will remove
authentication headers before the retry, so for any of the other requests, the
second attempt passes.
Before getting into why it fails on the first attempt, I needed to understand
what makes the delete queries special. Those request were never attempted a
second time.
It got me to this in HttpSolrClient, in createMethod:
if(contentWriter != null) {
String fullQueryUrl = url + wparams.toQueryString();
HttpEntityEnclosingRequestBase postOrPut = SolrRequest.METHOD.POST ==
request.getMethod() ?
new HttpPost(fullQueryUrl) : new HttpPut(fullQueryUrl);
postOrPut.addHeader("Content-Type",
contentWriter.getContentType());
postOrPut.setEntity(new BasicHttpEntity(){
@Override
public boolean isStreaming() {
return true;
}
@Override
public void writeTo(OutputStream outstream) throws IOException {
contentWriter.write(outstream);
}
});
return postOrPut;
I changed the BasicHttpEntity to be repeatable, as follows
if(contentWriter != null) {
String fullQueryUrl = url + wparams.toQueryString();
HttpEntityEnclosingRequestBase postOrPut = SolrRequest.METHOD.POST ==
request.getMethod() ?
new HttpPost(fullQueryUrl) : new HttpPut(fullQueryUrl);
postOrPut.addHeader("Content-Type",
contentWriter.getContentType());
postOrPut.setEntity(new BasicHttpEntity(){
@Override
public boolean isStreaming() {
return true;
}
@Override
public void writeTo(OutputStream outstream) throws IOException {
contentWriter.write(outstream);
}
@Override
public boolean isRepeatable() {
return true;
}
});
return postOrPut;
This changed allowed delete queries to work on the second attempt as the other
requests.
My questions:
1. Is there a reason for the entity to NOT be repeatable?
2. It seems that the authentication headers that are added are implemented
in httpclient-4.5.3 which solr depends on. Is there a way for me to configure
it from SolrJ?
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