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channeldb + wtdb: specify freelist bbolt options by default

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This commit specifies two bbolt options when opening the underlying
channel and watchtower databases so that there is reduced heap
pressure in case the bbolt database has a lot of free pages in the
B+ tree.
This commit is contained in:
nsa 2019-07-08 18:41:25 -04:00
parent 4fd78926d4
commit 66d15c8e76
2 changed files with 16 additions and 2 deletions
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9
channeldb/db.go
View File

@ -135,7 +135,14 @@ func Open(dbPath string, modifiers ...OptionModifier) (*DB, error) {
modifier(&opts)
}
bdb, err := bbolt.Open(path, dbFilePermission, nil)
// Specify bbolt freelist options to reduce heap pressure in case the
// freelist grows to be very large.
options := &bbolt.Options{
NoFreelistSync: true,
FreelistType: bbolt.FreelistMapType,
}
bdb, err := bbolt.Open(path, dbFilePermission, options)
if err != nil {
return nil, err
}

9
watchtower/wtdb/db_common.go
View File

@ -63,7 +63,14 @@ func createDBIfNotExist(dbPath, name string) (*bbolt.DB, bool, error) {
}
}
bdb, err := bbolt.Open(path, dbFilePermission, nil)
// Specify bbolt freelist options to reduce heap pressure in case the
// freelist grows to be very large.
options := &bbolt.Options{
NoFreelistSync: true,
FreelistType: bbolt.FreelistMapType,
}
bdb, err := bbolt.Open(path, dbFilePermission, options)
if err != nil {
return nil, false, err
}