memory defragmentation

hello team, https://ignite.apache.org/docs/latest/memory-architecture#memory-defragmentation Does this memory defragmentation function really exist? If this function is not available, this part of the document should be deleted.

[DISCUSSION] IEP-91 Transaction protocol

Hello, igniters. After a long and hard work I've finally pushed the IEP to the necessary detail level. Any useful feedback would be greatly appreciated. -- Best regards, Alexei Scherbakov