services/horizon: Remove ingest failed transactions flag #2702
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tamirms
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bartekn
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Jun 17, 2020
Co-authored-by: Bartek Nowotarski <[email protected]>
abuiles
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| } | ||
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| var _ txsub.ResultProvider = &DB{} | ||
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| // ResultByHash implements txsub.ResultProvider | ||
| func (rp *DB) ResultByHash(ctx context.Context, hash string) txsub.Result { | ||
| historyLatest := ledger.CurrentState().HistoryLatest | ||
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| // query history database | ||
| var hr history.Transaction | ||
| err := rp.History.TransactionByHash(&hr, hash) |
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@tamirms do we allow tx submission if Horizon is catching up with stellar-core? could this potentially cause a hash not to be found (since it hasn't been ingested)?
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that's a good point. I think this issue you've spotted was already there before this PR so we can try to tackle it in another PR
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PR Checklist
PR Structure
otherwise).
services/friendbot, orallordocif the changes are broad or impact manypackages.
Thoroughness
.mdfiles, etc... affected by this change). Take a look in the
docsfolder for a given service,like this one.
Release planning
needed with deprecations, added features, breaking changes, and DB schema changes.
semver, or if it's mainly a patch change. The PR is targeted at the next
release branch if it's not a patch change.
What
Remove ingest failed transactions flag so that Horizon will always ingest failed transactions
Why
Having failed transactions in the Horizon DB is useful because it allows us to remove the last remaining dependency on the stellar core DB in the txsub module.
Known limitations
There might be some operators who prefer to save space by not ingesting failed transactions in the Horizon DB. However, there is a reap system in Horizon which allows you to remove older rows in the history tables. Using horizon reap should satisfy the same need.