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doc(server): Copy important note from transactions doc to the code #1913

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Sep 22, 2023
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doc(server): Copy important note from transactions doc to the code #1913

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5 changes: 5 additions & 0 deletions src/server/transaction.h
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,11 @@ using facade::OpStatus;
// Central building block of the transactional framework.
//
// Use it to run callbacks on the shard threads - such dispatches are called hops.
//
// Callbacks are not allowed to keep any possibly dangling pointers to data within the shards - it
// must be copied explicitly. The callbacks running on different threads should also never pass any
// messages or wait for each other, as it would block the execution of other transactions.
//
// The shards to run on are determined by the keys of the underlying command.
// Global transactions run on all shards.
//
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