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Add error status for no_slowdown & low priority write (#6396)

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Summary:
When `no_slowdown` is enabled, it returns `Status::Incomplete("Write stall")` if a stall would occur. This patch adds descriptive text for when `no_slowdown` and `low_pri` are enabled.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6396

Differential Revision: D19808978

Pulled By: cheng-chang

fbshipit-source-id: a53b0d25ed414c821a086531e0222027f925e627
This commit is contained in:
Yutian Li 2020-02-10 12:31:12 -08:00 committed by Facebook Github Bot
parent debc4ef18b
commit 2e0159ec9e
1 changed files with 1 additions and 1 deletions
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2
db/db_impl/db_impl_write.cc
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@ -1458,7 +1458,7 @@ Status DBImpl::ThrottleLowPriWritesIfNeeded(const WriteOptions& write_options,
return Status::OK();
}
if (write_options.no_slowdown) {
return Status::Incomplete();
return Status::Incomplete("Low priority write stall");
} else {
assert(my_batch != nullptr);
// Rate limit those writes. The reason that we don't completely wait