[SOLR-10935] BALANCESHARDUNIQUE does not distribute properties correctly

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 6.2
• Fix Version/s: 7.7, 8.0, 9.0
• Component/s: SolrCloud
• Assignee: Erick Erickson
• Reporter: Daisy.Yuan
• Created: 22/Jun/17 08:44
• Updated: 08/Jun/19 15:23
• Resolved: 20/Jan/19 03:38

Description

Create a collection of 8 slices on 4 nodes, 2 replicas of each slice.

Node IP is:
192.168.182.246:21101
192.168.182.247:21104
192.168.182.248:21101
192.168.182.149:21104

After executing the BALANCESHARDUNIQUE command, the leader node is balanced as follows:
Cloud Graph (* Leader)
shard1 |- * 192.168.182.248:21101

192.168.182.247.21104

shard2 |- * 192.168.182.249:21104

192.168.182.246:21101

shard3 |- 192.168.182.247:21104

* 192.168.182.246:21101

shard4 |- 192.168.182.248:21101

* 192.168.182.249:21104

shard5 |- 192.168.182.249:21104

* 192.168.182.246:21101

shard6 |- * 192.168.182.248:21101

192.168.182.247:21104

shard7 |- 192.168.182.248:21101

* 192.168.182.249:21104

shard8 |- * 192.168.182.247:21104

192.168.182.246:21101

The correct expected result should be that there are two leader on each node.

But the actual result is..
there are 3 leaders on 192.168.182.249:21104,
and only one Leader on 192.168.182.247:21104
the others are distributed correctly.

Issue Links

• Is contained by: SOLR-13091 REBALANCELEADERS is broken