Roman Puchkovskiy created IGNITE-19692:
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Summary: Design Resilient Distributed Operations mechanism
Key: IGNITE-19692
URL: https://issues.apache.org/jira/browse/IGNITE-19692
Project: Ignite
Issue Type: Task
Reporter: Roman Puchkovskiy
Fix For: 3.0.0-beta2
We need a mechanism that would allow to do the following:
# Execute an operation on all (or some of) partitions of a table
# The whole operation is split into sub-operations (each of which operate on a
single partition)
# Each sub-operation must be resilient: that is, if the node that hosts it
restarts or the partition moves to another node, the operation should proceed
# When a sub-operation ends, it notifies the operation tracker/coordinator
# When all sub-operations end, the tracker might take some action (like
starting a subsequent operation)
# The tracker is also resilient
We need such a mechanism in a few places in the system:
# Transaction cleanup?
# Index build
# Table data validation as a part of a schema change that requires a
validation (like a narrowing type change)
Probably, more applications of the mechanism will emerge.
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