walcache

package

v0.1.1 Latest Latest Go to latest Published: Sep 14, 2017 License: Apache-2.0 Imports: 20 Imported by: 0

Details

Valid go.mod file

The Go module system was introduced in Go 1.11 and is the official dependency management solution for Go.
Redistributable license

Redistributable licenses place minimal restrictions on how software can be used, modified, and redistributed.
Tagged version

Modules with tagged versions give importers more predictable builds.
Stable version

When a project reaches major version v1 it is considered stable.
Learn more about best practices

Repository

github.com/TritonDataCenter/pg_prefaulter

Links

Open Source Insights

Documentation ¶

Index ¶

type WALCache
- func New(ctx context.Context, cfg *config.Config, metrics *cgm.CirconusMetrics, ...) (*WALCache, error)

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type WALCache ¶

type WALCache struct {
	// contains filtered or unexported fields
}

WALCache is a read-through cache to:

a) provide a reentrant interface b) deduplicate requests (i.e. no thundering-herd for the same WAL file) c) deliberately intollerant of scans because we know the input is monotonic d) sized to include only the walReadAhead

func New ¶

func New(ctx context.Context, cfg *config.Config, metrics *cgm.CirconusMetrics, ioCache *iocache.IOCache) (*WALCache, error)

func (*WALCache) Get ¶

func (wc *WALCache) Get(k interface{}) (interface{}, error)

Get forwards to gcache.Cache's Get().

func (*WALCache) GetIFPresent ¶

func (wc *WALCache) GetIFPresent(k interface{}) (interface{}, error)

GetIFPresent forwards to gcache.Cache's GetIFPresent().

func (*WALCache) Purge ¶

func (wc *WALCache) Purge()

Purge purges the WALCache of its cache (and all downstream caches)

func (*WALCache) ReadAhead ¶

func (wc *WALCache) ReadAhead() uint32

ReadAhead returns the number of WAL files to read ahead of PostgreSQL.

func (*WALCache) Wait ¶

func (wc *WALCache) Wait()

Wait blocks until the WALCache finishes shutting down its workers (including the workers of its IOCache).

Source Files ¶

View all Source files

cache.go

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL