For Solr 8.3, when I attempt a command of the form host:port/solr/admin/collections?action=BACKUP&name=snapshot1&collection=col1&location=/tmp&async=bug
And then when I run /solr/admin/collections?action=REQUESTSTATUS&requestid=bug I get "msg":"found [bug] in failed tasks" The solr.log file has a stack trace like the following 2019-11-18 17:31:31.369 ERROR (OverseerThreadFactory-9-thread-5-processing-n:host:port_solr) [c:col1 ] o.a.s.c.a.c.OverseerCollectionMessageHandler Error from shard: http://host:port/solr => org.apache.solr.client.solrj.SolrServerException: Timeout occured while waiting response from server at: http://host:port/solr/admin/cores at org.apache.solr.client.solrj.impl.Http2SolrClient.request(Http2SolrClient.java:408) org.apache.solr.client.solrj.SolrServerException: Timeout occured while waiting response from server at: http://host:port/solr/admin/cores at org.apache.solr.client.solrj.impl.Http2SolrClient.request(Http2SolrClient.java:408) ~[?:?] at org.apache.solr.client.solrj.impl.Http2SolrClient.request(Http2SolrClient.java:754) ~[?:?] at org.apache.solr.client.solrj.SolrClient.request(SolrClient.java:1290) ~[?:?] at org.apache.solr.handler.component.HttpShardHandler.request(HttpShardHandler.java:238) ~[?:?] at org.apache.solr.handler.component.HttpShardHandler.lambda$submit$0(HttpShardHandler.java:199) ~[?:?] at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_232] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_232] at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_232] at com.codahale.metrics.InstrumentedExecutorService$InstrumentedRunnable.run(InstrumentedExecutorService.java:181) ~[metrics-core-4.0.5.jar:4.0.5] at org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:210) ~[?:?] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_232] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_232] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_232] Caused by: java.util.concurrent.TimeoutException at org.eclipse.jetty.client.util.InputStreamResponseListener.get(InputStreamResponseListener.java:216) ~[?:?] at org.apache.solr.client.solrj.impl.Http2SolrClient.request(Http2SolrClient.java:399) ~[?:?] ... 12 more If I remove the async=bug, then it works In fact, the backup looks successful, but REQUESTSTATUS does not recognize it as such I notice that the 3:30am 11/4/19 Email to solr-user@lucene.apache.org mentions in Solr 8.3.0 Release Highlights "Fix for SPLITSHARD (async) with failures in underlying sub-operations can result in data loss" Did a fix to SPLITSHARD break BACKUP? Has anyone been successful running solr/admin/collections?action=BACKUP&async=requestname under Solr8.3? Thanks