[SOLR-4670] Core mismatch in concurrent documents creation

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 4.0, 4.1, 4.2, 4.2.1
• Component/s: multicore, SolrCloud
• Labels: concurrency multicore solrcloud zookeeper

Environment

CPU: 32x AMD Opteron(TM) Processor 6276
RAM: 132073620 kB
OS: Red Hat Enterprise Linux Server release 5.7 (Tikanga)

JDK 1.6.0_21
JBoss [EAP] 4.3.0.GA_CP09
Apache Solr 4.x
Apache ZooKeeper 3.4.5

• Assignee: Unassigned
• Reporter: Alberto Ferrini
• Created: 04/Apr/13 10:02
• Updated: 24/Sep/21 19:57
• Resolved: 24/Sep/21 19:57

Description

The issue can be reproduced in this way:

• Install SolrCloud with at least 2 nodes
• Install ZooKeeper with at least 2 nodes
• Create 30 cores
• After each core creation, create 20 random generated documents in a random existent core with 2 concurrent threads on all solr nodes (for example, document 1 in core 3 on node 1, document 2 in core 5 on node 1, document 3 in core 3 on node 2, etc...).
• After all cores creation, query each core for all documents and compare insert data with query result

Some documents result in different core than they are created.