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java.io.IOException: Invalid Http response	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1342)	at com.liferay.portal.search.lucene.LuceneHelperImpl.getLoadIndexesInputStreamFromCluster(LuceneHelperImpl.java:470)	at com.liferay.portal.search.lucene.LuceneHelperUtil.getLoadIndexesInputStreamFromCluster(LuceneHelperUtil.java:326)	at com.liferay.portal.search.lucene.cluster.LuceneClusterUtil.loadIndexesFromCluster(LuceneClusterUtil.java:57)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at com.liferay.portal.kernel.util.MethodHandler.invoke(MethodHandler.java:61)	at com.liferay.portal.cluster.ClusterRequestReceiver.processClusterRequest(ClusterRequestReceiver.java:238)	at com.liferay.portal.cluster.ClusterRequestReceiver.receive(ClusterRequestReceiver.java:88)	at org.jgroups.JChannel.invokeCallback(JChannel.java:749)	at org.jgroups.JChannel.up(JChannel.java:710)	at org.jgroups.stack.ProtocolStack.up(ProtocolStack.java:1025)	at org.jgroups.protocols.RSVP.up(RSVP.java:188)	at org.jgroups.protocols.FRAG2.up(FRAG2.java:181)	at org.jgroups.protocols.FlowControl.up(FlowControl.java:400)	at org.jgroups.protocols.FlowControl.up(FlowControl.java:418)	at org.jgroups.protocols.pbcast.GMS.up(GMS.java:896)	at org.jgroups.protocols.pbcast.STABLE.up(STABLE.java:245)	at org.jgroups.protocols.UNICAST2.up(UNICAST2.java:453)	at org.jgroups.protocols.pbcast.NAKACK2.handleMessage(NAKACK2.java:763)	at org.jgroups.protocols.pbcast.NAKACK2.up(NAKACK2.java:574)	at org.jgroups.protocols.VERIFY_SUSPECT.up(VERIFY_SUSPECT.java:147)	at org.jgroups.protocols.FD_ALL.up(FD_ALL.java:187)	at org.jgroups.protocols.FD_SOCK.up(FD_SOCK.java:288)	at org.jgroups.protocols.MERGE3.up(MERGE3.java:290)	at org.jgroups.protocols.Discovery.up(Discovery.java:359)	at org.jgroups.protocols.TP.passMessageUp(TP.java:1263)	at org.jgroups.protocols.TP$IncomingPacket.handleMyMessage(TP.java:1825)	at org.jgroups.protocols.TP$IncomingPacket.run(TP.java:1793)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)	at java.lang.Thread.run(Thread.java:724)