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Remove support for splitting multi-key commands per slot #23

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merged 3 commits into from
Jun 28, 2024

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bjosv
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@bjosv bjosv commented Jun 22, 2024

  • Remove support for command splitting in cluster API
    Since old days (from hiredis-vip) there has been support for sending some commands that contains multiple keys, but which covers multiple slots. The client would split a command into multiple commands and send to each node handling each slot.
    This is unnecessary complex, so lets remove it in this early stage.

  • Refactor function that prepares cluster commands
    Rename and remove unnecessary checks in the internal function command_format_by_slot().

bjosv added 2 commits June 22, 2024 19:53
Rename and remove unnecessary checks in internal function:
command_format_by_slot().

Signed-off-by: Björn Svensson <[email protected]>
@bjosv bjosv force-pushed the remove-multislot-support branch from 64da016 to c92d39b Compare June 22, 2024 17:53
@bjosv bjosv requested a review from zuiderkwast June 27, 2024 12:53
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This is great.

There's some clang-format issue.

I believe some users, at least of other clients in other languages, want this feature to do mass inserts. I don't think it's worth the complexity and the broken atomicity expectations though. If they want to do mass insertions, they can partition their keys by slot themselves (using valkeyClusterGetSlotByKey) and compose their own mset commands, or use some other tool for mass insertions.

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@bjosv bjosv merged commit 899ac88 into valkey-io:main Jun 28, 2024
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@bjosv bjosv deleted the remove-multislot-support branch June 28, 2024 08:05
michael-grunder pushed a commit to michael-grunder/libvalkey that referenced this pull request Aug 1, 2024
- Remove support for command splitting in cluster API
  Since old days (from hiredis-vip) there has been support for sending
  some commands that contains multiple keys, but which covers multiple
  slots. The client would split a command into multiple commands and send
  to each node handling each slot.
  This is unnecessary complex, so lets remove it in this early stage.

- Refactor function that prepares cluster commands    
  Rename and remove unnecessary checks in the internal function
  `command_format_by_slot()`.

Signed-off-by: Björn Svensson <[email protected]>
@bjosv bjosv added the breakingchange Indicates a possible backwards incompatible change label Sep 3, 2024
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2 participants