[IGNITE-12610] Disable H2 object cache reliably

• Type: Bug
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.8
• Component/s: sql
• Labels: newbie
• Ignite Flags: Docs Required, Release Notes Required
• Assignee: Artsiom Panko
• Reporter: Ivan Pavlukhin
• Created: 30/Jan/20 15:20
• Updated: 26/Jan/21 14:58

Description

Internally H2 maintains a cache of org.h2.value.Value objects. It can be disabled by using "h2.objectCache" system property. There is a clear intent to disable this cache because the system property is set to "false" in org.apache.ignite.internal.processors.query.h2.ConnectionManager. But apparently it is too late, because the property is read by H2 internals before it. Consequently the object cache is enabled by default.

We need to set this property earlier.

Issue Links

• links to: GitHub PR #7385
• links to: GitHub Pull Request #7385