584571c3d8
Garbage collection is triggered by io.murano.system.GC.collect() static method. Garbage collector destroys all object that are not reachable anymore. GC can handle objects with cross-references and isolated object graphs. When portion of object model becomes not reachable it destroyed in predictable order such that child objects get destroyed before their parents and, when possible, before objects that are subscribed to their destruction notifications. Internally, both pre-deployment garbage collection (that was done by comparision of ``Objects`` and ``ObjectsCopy``) and post-deployment orphan object collection are now done through the new GC. MuranoPL GC utilizes Python GC to track and collect objects. The main idea is to make ObjectStore have weak links only and prevent hard links in other dsl places so that only links between objects remain. Then prevent Python GC to automatically delete objects that are not used anymore and use gc.collect() to obtain a list of objects that are both not reachable and cannot be destroyed and then destroy them in the correct order. Targets-blueprint: dependency-driven-resource-deallocation Closes-Bug: #1619635 Closes-Bug: #1597747 Change-Id: I653d8f71f003afa0a1ea588c9d14198571f5ad14
14 lines
782 B
YAML
14 lines
782 B
YAML
---
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features:
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- New on-request garbage collector for MuranoPL objects were implemented.
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Garbage collection is triggered by io.murano.system.GC.collect()
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static method. Garbage collector destroys all object that are not
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reachable anymore. GC can handle objects with cross-references and
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isolated object graphs. When portion of object model becomes not
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reachable it destroyed in predictable order such that child objects get
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destroyed before their parents and, when possible, before objects
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that are subscribed to their destruction notifications.
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- Internally, both pre-deployment garbage collection (that was done by
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comparision of ``Objects`` and ``ObjectsCopy``) and post-deployment
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orphan object collection are now done through the new GC.
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