[IOTDB-1189] [Distributed] optimize thread pool close

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.12.0
• Component/s: Core/Cluster
• Labels: pull-request-available
• Assignee: Chao Wang
• Reporter: Chao Wang
• Created: 08/Mar/21 13:17
• Updated: 20/Jun/22 15:40
• Resolved: 12/Mar/21 06:32

Description

Currently, the thread pool is used to manage inter-cluster communication access. The connection is obtained from the connection pool. After the connection is used, the connection is returned to the connection pool. After the connection is used, the interface must be called to put the connection back to the connection pool. This requires that the connection must be closed in finally.
Therefore, the connection usage is optimized here. Use try() to obtain the closed connection（push to thread pool）.

Issue Links

• links to: GitHub Pull Request #2782