Sergey Chugunov created IGNITE-13366:
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Summary: Prohibit unconditional automatic deletion of data files
if WAL was disabled prior to node's shutdown
Key: IGNITE-13366
URL: https://issues.apache.org/jira/browse/IGNITE-13366
Project: Ignite
Issue Type: Task
Components: persistence
Affects Versions: 2.8.1
Reporter: Sergey Chugunov
Assignee: Sergey Chugunov
Fix For: 2.10
If node with persistence is stopped when WAL was disabled for a cache (no
matters because of rebalancing in progress or by explicit user request) on next
node start all data files of that cache are removed automatically and
unconditionally.
This behavior may be unexpected for users as they may not understand all
consequences of disabling WAL locally (for rebalancing) or globally (via
IgniteCluster API call). Also it is not smart enough as there is no point in
deleting consistent data files.
We should change this behavior to the following list: no automatic deletions
whatsoever. If data files are consistent (equivalent to: no checkpoint was
running when node was stopped) start up normally. If data files are corrupted,
don't let the node start.
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