Hi all,
I just want to verify that it is no longer possible to unload a Cloud
core via the Core API UNLOAD command, correct?
I had two situations: one where I wanted to remove old replicas in a
node that I was deactivating (and I had already created new replicas)
and one where I needed to remove a shard I split.
In both cases I got this nice stack trace:
<response>
<lst name="responseHeader"><int name="status">500</int><int
name="QTime">1</int></lst><lst name="error"><str
name="trace">java.lang.NullPointerException
at
org.apache.solr.core.CorePropertiesLocator.delete(CorePropertiesLocator.java:95)
at
org.apache.solr.core.CoreContainer.remove(CoreContainer.java:754)
at
org.apache.solr.handler.admin.CoreAdminHandler.handleUnloadAction(CoreAdminHandler.java:589)
at
org.apache.solr.handler.admin.CoreAdminHandler.handleRequestBody(CoreAdminHandler.java:162)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
at
org.apache.solr.servlet.SolrDispatchFilter.handleAdminRequest(SolrDispatchFilter.java:662)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:248)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:197)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)
</str><int name="code">500</int></lst>
</response>
I had to resort to DELETEREPLICA, which worked fine, but I just wanted
to verify whether this is a bug or intended behavior. Lots of older docs
say to use UNLOAD for these situations.
Thanks,
Lajos
