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Callback for the EOS UID cache to retry user fetch for failed keys on expiry #2266

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merged 2 commits into from
Nov 17, 2021
Merged

Callback for the EOS UID cache to retry user fetch for failed keys on expiry #2266

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51512eb
Callback for the EOS UID cache to retry user fetch for failed keys on…
ishank011 Nov 11, 2021
d76f383
Only retry for expired keys
ishank011 Nov 11, 2021
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3 changes: 3 additions & 0 deletions changelog/unreleased/eos-uid-cache-expire-cb.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
Enhancement: Callback for the EOS UID cache to retry fetch for failed keys

https://github.com/cs3org/reva/pull/2266
24 changes: 17 additions & 7 deletions pkg/storage/utils/eosfs/eosfs.go
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@ import (
"strings"
"time"

"github.com/ReneKroon/ttlcache/v2"
"github.com/bluele/gcache"
grouppb "github.com/cs3org/go-cs3apis/cs3/identity/group/v1beta1"
userpb "github.com/cs3org/go-cs3apis/cs3/identity/user/v1beta1"
Expand Down Expand Up @@ -140,7 +141,7 @@ type eosfs struct {
conf *Config
chunkHandler *chunking.ChunkHandler
singleUserAuth eosclient.Authorization
userIDCache gcache.Cache
userIDCache *ttlcache.Cache
tokenCache gcache.Cache
}

Expand Down Expand Up @@ -205,10 +206,19 @@ func NewEOSFS(c *Config) (storage.FS, error) {
c: eosClient,
conf: c,
chunkHandler: chunking.NewChunkHandler(c.CacheDirectory),
userIDCache: gcache.New(c.UserIDCacheSize).LFU().Build(),
userIDCache: ttlcache.NewCache(),
tokenCache: gcache.New(c.UserIDCacheSize).LFU().Build(),
}

eosfs.userIDCache.SetCacheSizeLimit(c.UserIDCacheSize)
eosfs.userIDCache.SetExpirationReasonCallback(func(key string, reason ttlcache.EvictionReason, value interface{}) {
// We only set those keys with TTL which we weren't able to retrieve the last time
// For those keys, try to contact the userprovider service again when they expire
if reason == ttlcache.Expired {
_, _ = eosfs.getUserIDGateway(context.Background(), key)
}
})

go eosfs.userIDcacheWarmup()

return eosfs, nil
Expand Down Expand Up @@ -1751,6 +1761,7 @@ func (fs *eosfs) convert(ctx context.Context, eosFileInfo *eosclient.FileInfo) (
Size: size,
PermissionSet: fs.permissionSet(ctx, eosFileInfo, owner),
Checksum: &xs,
Type: getResourceType(eosFileInfo.IsDir),
Mtime: &types.Timestamp{
Seconds: eosFileInfo.MTimeSec,
Nanos: eosFileInfo.MTimeNanos,
Expand All @@ -1775,7 +1786,6 @@ func (fs *eosfs) convert(ctx context.Context, eosFileInfo *eosclient.FileInfo) (
}
}

info.Type = getResourceType(eosFileInfo.IsDir)
return info, nil
}

Expand Down Expand Up @@ -1811,11 +1821,11 @@ func (fs *eosfs) getUIDGateway(ctx context.Context, u *userpb.UserId) (eosclient
UserId: u,
})
if err != nil {
_ = fs.userIDCache.SetWithExpire(u.OpaqueId, &userpb.User{}, 12*time.Hour)
_ = fs.userIDCache.SetWithTTL(u.OpaqueId, &userpb.User{}, 12*time.Hour)
return eosclient.Authorization{}, errors.Wrap(err, "eosfs: error getting user")
}
if getUserResp.Status.Code != rpc.Code_CODE_OK {
_ = fs.userIDCache.SetWithExpire(u.OpaqueId, &userpb.User{}, 12*time.Hour)
_ = fs.userIDCache.SetWithTTL(u.OpaqueId, &userpb.User{}, 12*time.Hour)
return eosclient.Authorization{}, status.NewErrorFromCode(getUserResp.Status.Code, "eosfs")
}

Expand Down Expand Up @@ -1847,13 +1857,13 @@ func (fs *eosfs) getUserIDGateway(ctx context.Context, uid string) (*userpb.User
if err != nil {
// Insert an empty object in the cache so that we don't make another call
// for a specific amount of time
_ = fs.userIDCache.SetWithExpire(uid, &userpb.UserId{}, 12*time.Hour)
_ = fs.userIDCache.SetWithTTL(uid, &userpb.UserId{}, 12*time.Hour)
return nil, errors.Wrap(err, "eosfs: error getting user")
}
if getUserResp.Status.Code != rpc.Code_CODE_OK {
// Insert an empty object in the cache so that we don't make another call
// for a specific amount of time
_ = fs.userIDCache.SetWithExpire(uid, &userpb.UserId{}, 12*time.Hour)
_ = fs.userIDCache.SetWithTTL(uid, &userpb.UserId{}, 12*time.Hour)
return nil, status.NewErrorFromCode(getUserResp.Status.Code, "eosfs")
}

Expand Down