From 8c70811f3a2a4deab8186b187909ac5c3615e6fb Mon Sep 17 00:00:00 2001
From: Andrzej Bialecki <ab@apache.org>
Date: Mon, 22 Oct 2018 11:27:35 +0200
Subject: [PATCH] SOLR-12729: Unlock the shard on error.

---
 .../solr/cloud/autoscaling/sim/SimClusterStateProvider.java      | 1 +
 1 file changed, 1 insertion(+)

diff --git a/solr/core/src/test/org/apache/solr/cloud/autoscaling/sim/SimClusterStateProvider.java b/solr/core/src/test/org/apache/solr/cloud/autoscaling/sim/SimClusterStateProvider.java
index 43e12ce4016..a7471ebc0f0 100644
--- a/solr/core/src/test/org/apache/solr/cloud/autoscaling/sim/SimClusterStateProvider.java
+++ b/solr/core/src/test/org/apache/solr/cloud/autoscaling/sim/SimClusterStateProvider.java
@@ -1156,6 +1156,7 @@ public class SimClusterStateProvider implements ClusterStateProvider {
     Map<String, Object> props = sliceProperties.computeIfAbsent(collectionName, c -> new ConcurrentHashMap<>())
         .computeIfAbsent(sliceName.get(), ss -> new ConcurrentHashMap<>());
     if (props.containsKey(BUFFERED_UPDATES)) {
+      SplitShardCmd.unlockForSplit(cloudManager, collectionName, sliceName.get());
       throw new Exception("--- SOLR-12729: Overlapping splitShard commands for " + collectionName + "/" + sliceName.get());
     }
     props.put(BUFFERED_UPDATES, new AtomicLong());