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https://issues.apache.org/jira/browse/SOLR-1752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12838486#action_12838486
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Shalin Shekhar Mangar commented on SOLR-1752:
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Jayson, Solr's update XML does not define a container tag so we are constrained
to only one of add/delete/commit/optimize at a time. Binary format of course
does not have this problem. So unless we decide to add a root tag to the update
XML, this exception will happen.
So I guess we have the following options:
# Disallow more than one type of operation for any request writer
# Document this behavior in the UpdateRequest javadocs.
I'd prefer #2 even though it is inconsistent.
> SolrJ fails with exception when passing document ADD and DELETEs in the same
> request using XML request writer (but not binary request writer)
> ---------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SOLR-1752
> URL: https://issues.apache.org/jira/browse/SOLR-1752
> Project: Solr
> Issue Type: Bug
> Components: clients - java, update
> Affects Versions: 1.4
> Reporter: Jayson Minard
> Assignee: Shalin Shekhar Mangar
> Priority: Blocker
>
> Add this test to SolrExampleTests.java and it will fail when using the XML
> Request Writer (now default), but not if you change the SolrExampleJettyTest
> to use the BinaryRequestWriter.
> {code}
> public void testAddDeleteInSameRequest() throws Exception {
> SolrServer server = getSolrServer();
> SolrInputDocument doc3 = new SolrInputDocument();
> doc3.addField( "id", "id3", 1.0f );
> doc3.addField( "name", "doc3", 1.0f );
> doc3.addField( "price", 10 );
> UpdateRequest up = new UpdateRequest();
> up.add( doc3 );
> up.deleteById("id001");
> up.setWaitFlush(false);
> up.setWaitSearcher(false);
> up.process( server );
> }
> {code}
> terminates with exception:
> {code}
> Feb 3, 2010 8:55:34 AM org.apache.solr.common.SolrException log
> SEVERE: org.apache.solr.common.SolrException: Illegal to have multiple roots
> (start tag in epilog?).
> at [row,col {unknown-source}]: [1,125]
> at org.apache.solr.handler.XMLLoader.load(XMLLoader.java:72)
> at
> org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:54)
> at
> org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:131)
> at org.apache.solr.core.SolrCore.execute(SolrCore.java:1316)
> at
> org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:338)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:241)
> at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1089)
> at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365)
> at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
> at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
> at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
> at org.mortbay.jetty.Server.handle(Server.java:285)
> at
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:502)
> at
> org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:835)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:723)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:202)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:378)
> at
> org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:226)
> at
> org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)
> Caused by: com.ctc.wstx.exc.WstxParsingException: Illegal to have multiple
> roots (start tag in epilog?).
> at [row,col {unknown-source}]: [1,125]
> at
> com.ctc.wstx.sr.StreamScanner.constructWfcException(StreamScanner.java:630)
> at com.ctc.wstx.sr.StreamScanner.throwParseError(StreamScanner.java:461)
> at
> com.ctc.wstx.sr.BasicStreamReader.handleExtraRoot(BasicStreamReader.java:2155)
> at
> com.ctc.wstx.sr.BasicStreamReader.nextFromProlog(BasicStreamReader.java:2070)
> at
> com.ctc.wstx.sr.BasicStreamReader.nextFromTree(BasicStreamReader.java:2647)
> at com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1019)
> at org.apache.solr.handler.XMLLoader.processUpdate(XMLLoader.java:90)
> at org.apache.solr.handler.XMLLoader.load(XMLLoader.java:69)
> ... 18 more
> {code}
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