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c-deps: bump rocksdb for multiple backported PRs #37172

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merged 1 commit into from
Apr 27, 2019

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@ajkr ajkr commented Apr 27, 2019

Includes the following changes, all of which have landed upstream.

Also made the RocksDB changes that we decided in #34897:

Release note: None

Includes the following changes, all of which have landed upstream.

- cockroachdb/rocksdb#27: "ldb: set `total_order_seek` for scans"
- cockroachdb/rocksdb#28: "Fix cockroachdb#3840: only `SyncClosedLogs` for multiple CFs"
- cockroachdb/rocksdb#29: "Optionally wait on bytes_per_sync to smooth I/O"
- cockroachdb/rocksdb#30: "Option string/map/file can set env from object registry"

Also made the RocksDB changes that we decided in cockroachdb#34897:

- Do not sync WAL before installing flush result. This is achieved by backporting cockroachdb/rocksdb#28; no configuration change is necessary.
- Do not sync WAL ever for temp stores. This is achieved by setting `wal_bytes_per_sync = 0`.
- Limit size of final syncs when generating SSTs. This is achieved by backporting cockroachdb/rocksdb#29 and turning it on with `strict_bytes_per_sync = true`.

Release note: None
@ajkr ajkr requested review from a team April 27, 2019 00:10
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LGTM

options.strict_bytes_per_sync = true;
// Do not sync the WAL periodically. We sync it every write already by calling
// `FlushWAL(true)` on non-temp stores. On the temp store we do not intend to
// sync WAL ever, so setting it to zero is fine there too.
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While we don't intend to sync the WAL on temp-stores, I wonder if not syncing can run into problems where the WAL dirty data forces the OS to flush. Hopefully we're deleting the WAL before that happens, though. Ok, I just talked myself into being ok with this.

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ajkr commented Apr 27, 2019

bors r+

craig bot pushed a commit that referenced this pull request Apr 27, 2019
37172: c-deps: bump rocksdb for multiple backported PRs r=ajkr a=ajkr

Includes the following changes, all of which have landed upstream.

- cockroachdb/rocksdb#27: "ldb: set `total_order_seek` for scans"
- cockroachdb/rocksdb#28: "Fix #3840: only `SyncClosedLogs` for multiple CFs"
- cockroachdb/rocksdb#29: "Optionally wait on bytes_per_sync to smooth I/O"
- cockroachdb/rocksdb#30: "Option string/map/file can set env from object registry"

Also made the RocksDB changes that we decided in #34897:

- Do not sync WAL before installing flush result. This is achieved by backporting cockroachdb/rocksdb#28; no configuration change is necessary.
- Do not sync WAL ever for temp stores. This is achieved by setting `wal_bytes_per_sync = 0`.
- Limit size of final syncs when generating SSTs. This is achieved by backporting cockroachdb/rocksdb#29 and turning it on with `strict_bytes_per_sync = true`.

Release note: None

Co-authored-by: Andrew Kryczka <[email protected]>
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craig bot commented Apr 27, 2019

Build succeeded

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