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Attempt to fix occasional deadlock in counter decays

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Dragory 2021-04-13 23:35:19 +03:00
parent 825bcf973f
commit c03e7240b4
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1 changed files with 9 additions and 7 deletions
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16
backend/src/data/GuildCounters.ts
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@ -186,14 +186,16 @@ export class GuildCounters extends BaseGuildRepository {
? `GREATEST(value - ${decayAmountToApply}, 0)` ? `GREATEST(value - ${decayAmountToApply}, 0)`
: `LEAST(value + ${Math.abs(decayAmountToApply)}, ${MAX_COUNTER_VALUE})`; : `LEAST(value + ${Math.abs(decayAmountToApply)}, ${MAX_COUNTER_VALUE})`;
await this.counterValues.update( // Using an UPDATE with ORDER BY in an attempt to avoid deadlocks from simultaneous decays
{ // Also see https://dev.mysql.com/doc/refman/8.0/en/innodb-deadlocks-handling.html
counter_id: id, await this.counterValues
}, .createQueryBuilder("CounterValue")
{ .where("counter_id = :id", { id })
.orderBy("id")
.update({
value: () => rawUpdate, value: () => rawUpdate,
}, })
); .execute();
await this.counters.update( await this.counters.update(
{ {