[KAFKA-10604] The StreamsConfig.STATE_DIR_CONFIG's default value does not reflect the JVM parameter or OS-specific settings

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.8.0
• Component/s: streams
• Assignee: Dongjin Lee
• Reporter: Dongjin Lee
• Created: 13/Oct/20 08:01
• Updated: 02/Feb/21 07:58
• Resolved: 02/Feb/21 07:58

Description

I found this problem working for KAFKA-10585.

The JVM's temporary directory location is different per OS, and JVM allows to change it with `java.io.tmpdir` system property. In Linux, it defaults to `/tmp`.

The problem is the default value of StreamsConfig.STATE_DIR_CONFIG (`state.dir`) is fixed to `/tmp/kafka-streams`. For this reason, it does not change if the runs on OS other than Linux or the user specifies `java.io.tmpdir` system property.

It should be `{temp-directory}/kafka-streams`, not `/tmp/kafka-streams`.

Issue Links

• links to: GitHub Pull Request #9420