A strange RemoteSolrException
Hello,
I'm writing my first little Solrj program, but don't get it running because of
an RemoteSolrException: Server at http://localhost:8983/solr returned non ok
status:404
The server is definitely running and the url works in the browser.
I am working with Solr 4.3.0.
This is my source code:
public static void main(String[] args) {
String url = "http://localhost:8983/solr";;
SolrServer server;
try {
server = new HttpSolrServer(url);
server.ping();
} catch (Exception ex) {
ex.printStackTrace();
}
}
with the stack trace:
org.apache.solr.client.solrj.impl.HttpSolrServer$RemoteSolrException: Server at
http://localhost:8983/solr returned non ok status:404, message:Not Found
at
org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:372)
at
org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:180)
at org.apache.solr.client.solrj.request.SolrPing.process(SolrPing.java:62)
at org.apache.solr.client.solrj.SolrServer.ping(SolrServer.java:293)
at de.epublius.blogindexer.App.main(App.java:47)
If I call server.shutdown(), there is no such exception, but for almost all
other SolrServer-methods.
What am I doing wrong?
Thanks in advance
Hans-Peter
Re: A strange RemoteSolrException
Yes, I started it up with java -Dsolr.solr.home=example-DIH/solr -jar
start.jar.
Without the java options I don't get the expections neither! (I should have
checked.)
What now?
--
From: "Shalin Shekhar Mangar"
Sent: Monday, May 27, 2013 3:58 PM
To:
Subject: Re: A strange RemoteSolrException
I downloaded solr 4.3.0, started it up with java -jar start.jar (from
inside the example directory) and executed your program. No exceptions are
thrown. Is there something you did differently?
On Mon, May 27, 2013 at 5:45 PM, Hans-Peter Stricker
wrote:
Hello,
I'm writing my first little Solrj program, but don't get it running
because of an RemoteSolrException: Server at
http://localhost:8983/solrreturned non ok status:404
The server is definitely running and the url works in the browser.
I am working with Solr 4.3.0.
This is my source code:
public static void main(String[] args) {
String url = "http://localhost:8983/solr";;
SolrServer server;
try {
server = new HttpSolrServer(url);
server.ping();
} catch (Exception ex) {
ex.printStackTrace();
}
}
with the stack trace:
org.apache.solr.client.solrj.impl.HttpSolrServer$RemoteSolrException:
Server at http://localhost:8983/solr returned non ok status:404,
message:Not Found
at
org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:372)
at
org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:180)
at
org.apache.solr.client.solrj.request.SolrPing.process(SolrPing.java:62)
at org.apache.solr.client.solrj.SolrServer.ping(SolrServer.java:293)
at de.epublius.blogindexer.App.main(App.java:47)
If I call server.shutdown(), there is no such exception, but for almost
all other SolrServer-methods.
What am I doing wrong?
Thanks in advance
Hans-Peter
--
Regards,
Shalin Shekhar Mangar.
Re: A strange RemoteSolrException
Dear Shawn, dear Shalin, thanks for your valuable replies! Could/should I have known better (by reading more carefully the manual)? I'll try to fix it - and I am confident that it will work! Best regards Hans -- From: "Shawn Heisey" Sent: Monday, May 27, 2013 4:29 PM To: Subject: Re: A strange RemoteSolrException On 5/27/2013 8:24 AM, Hans-Peter Stricker wrote: Yes, I started it up with java -Dsolr.solr.home=example-DIH/solr -jar start.jar. That explains it. See my other reply. The solr.xml file for example-DIH does not have a defaultCoreName attribute. Thanks, Shawn
Problems with DIH in Solrj
I start the SOLR example with
java -Dsolr.solr.home=example-DIH/solr -jar start.jar
and run
public static void main(String[] args) {
String url = "http://localhost:8983/solr/rss";;
SolrServer server;
SolrQuery query;
try {
server = new HttpSolrServer(url);
query = new SolrQuery();
query.setParam(CommonParams.QT,"/dataimport");
QueryRequest request = new QueryRequest(query);
QueryResponse response = request.process(server);
server.commit();
System.out.println(response.toString());
} catch (Exception ex) {
ex.printStackTrace();
}
}
without exception and the response string as
{responseHeader={status=0,QTime=0},initArgs={defaults={config=rss-data-config.xml}},status=idle,importResponse=,statusMessages={},WARNING=This
response format is experimental. It is likely to change in the future.}
The Lucene index is "touched" but not really updated: there are only
segments.gen and segments_a files of size 1Kb. If I execute /dataimport
(full-import with option "commit" checked) from
http://localhost:8983/solr/#/rss/dataimport//dataimport I get
{ "responseHeader": { "status": 0, "QTime": 1 }, "initArgs": [ "defaults", [
"config", "rss-data-config.xml" ] ], "command": "status", "status": "idle",
"importResponse": "", "statusMessages": { "Total Requests made to DataSource":
"1", "Total Rows Fetched": "10", "Total Documents Skipped": "0", "Full Dump
Started": "2013-05-27 17:57:07", "": "Indexing completed. Added/Updated: 10
documents. Deleted 0 documents.", "Committed": "2013-05-27 17:57:07", "Total
Documents Processed": "10", "Time taken": "0:0:0.603" }, "WARNING": "This
response format is experimental. It is likely to change in the future." }
What am I doing wrong?
Re: Problems with DIH in Solrj
Marvelous!!
Once again: where could/should I have read this? What kinds of
concepts/keywords are "command" and "full-import"? (Couldn't find them in
any config file. Where are they explained?)
Anyway: Now it works like a charm!
Thanks
Hans
--
From: "Shalin Shekhar Mangar"
Sent: Monday, May 27, 2013 6:09 PM
To:
Subject: Re: Problems with DIH in Solrj
Your program is not specifying a command. You need to add:
query.setParam("command", "full-import");
On Mon, May 27, 2013 at 9:31 PM, Hans-Peter Stricker
wrote:
I start the SOLR example with
java -Dsolr.solr.home=example-DIH/solr -jar start.jar
and run
public static void main(String[] args) {
String url = "http://localhost:8983/solr/rss";;
SolrServer server;
SolrQuery query;
try {
server = new HttpSolrServer(url);
query = new SolrQuery();
query.setParam(CommonParams.QT,"/dataimport");
QueryRequest request = new QueryRequest(query);
QueryResponse response = request.process(server);
server.commit();
System.out.println(response.toString());
} catch (Exception ex) {
ex.printStackTrace();
}
}
without exception and the response string as
{responseHeader={status=0,QTime=0},initArgs={defaults={config=rss-data-config.xml}},status=idle,importResponse=,statusMessages={},WARNING=This
response format is experimental. It is likely to change in the future.}
The Lucene index is "touched" but not really updated: there are only
segments.gen and segments_a files of size 1Kb. If I execute /dataimport
(full-import with option "commit" checked) from
http://localhost:8983/solr/#/rss/dataimport//dataimport I get
{ "responseHeader": { "status": 0, "QTime": 1 }, "initArgs": [
"defaults",
[ "config", "rss-data-config.xml" ] ], "command": "status", "status":
"idle", "importResponse": "", "statusMessages": { "Total Requests made to
DataSource": "1", "Total Rows Fetched": "10", "Total Documents Skipped":
"0", "Full Dump Started": "2013-05-27 17:57:07", "": "Indexing completed.
Added/Updated: 10 documents. Deleted 0 documents.", "Committed":
"2013-05-27 17:57:07", "Total Documents Processed": "10", "Time taken":
"0:0:0.603" }, "WARNING": "This response format is experimental. It is
likely to change in the future." }
What am I doing wrong?
--
Regards,
Shalin Shekhar Mangar.
Problem with xpath expression in data-config.xml
Replacing the contents of solr-4.3.0\example\example-DIH\solr\rss\conf\rss-data-config.xml by url="http://beautybooks88.blogspot.com/feeds/posts/default"; processor="XPathEntityProcessor" forEach="/feed/entry" transformer="DateFormatTransformer"> commonField="true" /> stripHTML="true"/> dateTimeFormat="-MM-dd'T'HH:mm:ss" /> and running the full dataimport from http://localhost:8983/solr/#/rss/dataimport//dataimport results in an error. 1) How could I have found the reason faster than I did - by looking into which log files,? 2) If you remove the first occurrence of /@href above, the import succeeds. (Note that the same pattern works for column "link".) What's the reason why?!! Best regards and thanks in advance Hans-Peter
Re: Problem with xpath expression in data-config.xml
Thanks for having analyzed the problem. But please let me note that I came to a somehow different conclusion. Define for the moment "title" to be the primary unique key: solr-4.3.0\example\example-DIH\solr\rss\conf\schema.xml title solr-4.3.0\example\example-DIH\solr\rss\conf\rss-data-config.xml [BAD CASE] (irrespective of the predicate @rel='self') http://beautybooks88.blogspot.com/feeds/posts/default"; processor="XPathEntityProcessor" forEach="/feed/entry" transformer="DateFormatTransformer"> [GOOD CASE] http://beautybooks88.blogspot.com/feeds/posts/default"; processor="XPathEntityProcessor" forEach="/feed/entry" transformer="DateFormatTransformer"> Conclusion: It has nothing to do with the number of occurrences of the pattern.
dataConfig DTD or schema
I wonder how to pass default values via , e.g. like this: BE or like this: In the course of this, I did not find a DTD or Schema for . Any hint is appreciated!!
Re: dataConfig DTD or schema
You are great! Thanks a lot for taking the time. -- From: "Shalin Shekhar Mangar" Sent: Friday, May 31, 2013 4:59 PM To: Subject: Re: dataConfig DTD or schema DataImportHandler does not support specifying default values for a field. However, the solr schema.xml lets you specify defaults. So, modify the corresponding field inside solr's schema.xml. For example: default="BE"/> On Fri, May 31, 2013 at 8:20 PM, Hans-Peter Stricker wrote: I wonder how to pass default values via , e.g. like this: BE or like this: In the course of this, I did not find a DTD or Schema for . Any hint is appreciated!! -- Regards, Shalin Shekhar Mangar.
Re: dataConfig DTD or schema
On the other side: I have a problem. Because I want to give some entities a default value "A" and others default value "B" - which I could do inside a inside of in data-config.xml but not inside a in schema.xml. -- From: "Shalin Shekhar Mangar" Sent: Friday, May 31, 2013 4:59 PM To: Subject: Re: dataConfig DTD or schema DataImportHandler does not support specifying default values for a field. However, the solr schema.xml lets you specify defaults. So, modify the corresponding field inside solr's schema.xml. For example: default="BE"/> On Fri, May 31, 2013 at 8:20 PM, Hans-Peter Stricker wrote: I wonder how to pass default values via , e.g. like this: BE or like this: In the course of this, I did not find a DTD or Schema for . Any hint is appreciated!! -- Regards, Shalin Shekhar Mangar.
