[KYLIN-4007] Kylin concurrently builds a global dictionary for too long

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Cannot Reproduce
• Affects Version/s: v2.6.1
• Component/s: Job Engine
• Assignee: Xiaoxiang Yu
• Reporter: mouxingya
• Created: 17/May/19 05:20
• Updated: 31/May/19 07:23
• Resolved: 31/May/19 07:23

Description

When a dimension (user_id) is accurately calculated at the same time, the original data is in the order of millions, and the rowkey has the encoding type fixed_lengrh and length 100. It took a few hours or even failed in the build dimension dictionary step. After investigation, it was found that there are concurrent processes that want to obtain the lock corresponding to the cube / dict path, resulting in a deadlock.