Poorna Chandra created TEPHRA-201:
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Summary: In-progress transactions may become visible when
transactions are checkpointed
Key: TEPHRA-201
URL: https://issues.apache.org/jira/browse/TEPHRA-201
Project: Tephra
Issue Type: Bug
Components: core
Affects Versions: 0.9.0-incubating, 0.8.0-incubating
Reporter: Poorna Chandra
Assignee: Poorna Chandra
Priority: Blocker
Fix For: 0.10.0-incubating
When a transaction is created, the current in-progress list is attached to the
transaction object. This list is used to filter out in-progress transactions
during read.
The transaction object expects this list to be sorted numerically since it does
a binary search for filtering out the in-progress transactions.
When checkpointing feature was added in TEPHRA-96, checkpoints were also added
as part of the in-progress list since data writes from checkpoints also have to
be filtered out during reads. However adding checkpoints broke the sort order.
This leads to binary search not working as expected to filter out in-progress
transactions.
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