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[Sync replication] replication: rax -> hashtable and handling of failovers #3057

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[Sync replication] replication: rax -> hashtable and handling of failovers #3057

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@jjuleslasarte jjuleslasarte commented Jan 13, 2026

Part of the work for sync-replication #3037

This PR adds

  1. handling of failovers:
  • any client waiting on acks is released and freed
  • any remaining dirty data returns ERR to readers
  1. Moves from a rax tree to a hashtable based on feedback on [POC] Key blocking for dirty writes #2865

@jjuleslasarte
clang-format fixes
501efd6 
Signed-off-by: jjuleslasarte <jules.lasarte@gmail.com>
@jjuleslasarte
fix typo
5d64d40 
Signed-off-by: jjuleslasarte <jules.lasarte@gmail.com>
@jjuleslasarte
adding a flag, and fixing a merge issue
f37d9f4 
Signed-off-by: jjuleslasarte <jules.lasarte@gmail.com>
@jjuleslasarte
basic testing for blocking
d17c514 
Signed-off-by: jjuleslasarte <jules.lasarte@gmail.com>
@jjuleslasarte
Merge branch 'durability' into durability
9efdeaf 
Signed-off-by: jjuleslasarte <jules.lasarte@gmail.com>
@jjuleslasarte
moving from rax to hashtable, and handling of failovers
ea0a965 
Signed-off-by: jjuleslasarte <jules.lasarte@gmail.com>
@jjuleslasarte
Merge remote-tracking branch 'upstream/durability' into with-hashtable
6dafff6 
Signed-off-by: jjuleslasarte <jules.lasarte@gmail.com>
@jjuleslasarte jjuleslasarte mentioned this pull request Jan 13, 2026
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@jjuleslasarte jjuleslasarte changed the title sync replication: rax -> hashtable and handling of failovers [Sync replication] replication: rax -> hashtable and handling of failovers Jan 13, 2026
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