_id
stringlengths
2
7
title
stringlengths
1
118
partition
stringclasses
3 values
text
stringlengths
52
85.5k
language
stringclasses
1 value
meta_information
dict
q33700
readProtobufQueryRequest
train
func (h *Handler) readProtobufQueryRequest(r *http.Request) (*pilosa.QueryRequest, error) { // Slurp the body. body, err := ioutil.ReadAll(r.Body) if err != nil { return nil, errors.Wrap(err, "reading") } qreq := &pilosa.QueryRequest{} err = h.api.Serializer.Unmarshal(body, qreq) if err != nil { return nil,...
go
{ "resource": "" }
q33701
readURLQueryRequest
train
func (h *Handler) readURLQueryRequest(r *http.Request) (*pilosa.QueryRequest, error) { q := r.URL.Query() // Parse query string. buf, err := ioutil.ReadAll(r.Body) if err != nil { return nil, errors.Wrap(err, "reading") } query := string(buf) // Parse list of shards. shards, err := parseUint64Slice(q.Get("s...
go
{ "resource": "" }
q33702
writeQueryResponse
train
func (h *Handler) writeQueryResponse(w http.ResponseWriter, r *http.Request, resp *pilosa.QueryResponse) error { if !validHeaderAcceptJSON(r.Header) { w.Header().Set("Content-Type", "application/protobuf") return h.writeProtobufQueryResponse(w, resp) } w.Header().Set("Content-Type", "application/json") return h...
go
{ "resource": "" }
q33703
writeProtobufQueryResponse
train
func (h *Handler) writeProtobufQueryResponse(w io.Writer, resp *pilosa.QueryResponse) error { if buf, err := h.api.Serializer.Marshal(resp); err != nil { return errors.Wrap(err, "marshalling") } else if _, err := w.Write(buf); err != nil { return errors.Wrap(err, "writing") } return nil }
go
{ "resource": "" }
q33704
writeJSONQueryResponse
train
func (h *Handler) writeJSONQueryResponse(w io.Writer, resp *pilosa.QueryResponse) error { return json.NewEncoder(w).Encode(resp) }
go
{ "resource": "" }
q33705
parseUint64Slice
train
func parseUint64Slice(s string) ([]uint64, error) { var a []uint64 for _, str := range strings.Split(s, ",") { // Ignore blanks. if str == "" { continue } // Parse number. num, err := strconv.ParseUint(str, 10, 64) if err != nil { return nil, errors.Wrap(err, "parsing int") } a = append(a, num)...
go
{ "resource": "" }
q33706
TranslateColumnsToUint64
train
func (s *translateStore) TranslateColumnsToUint64(index string, values []string) ([]uint64, error) { return nil, pilosa.ErrNotImplemented }
go
{ "resource": "" }
q33707
TranslateColumnToString
train
func (s *translateStore) TranslateColumnToString(index string, values uint64) (string, error) { return "", pilosa.ErrNotImplemented }
go
{ "resource": "" }
q33708
TranslateRowsToUint64
train
func (s *translateStore) TranslateRowsToUint64(index, frame string, values []string) ([]uint64, error) { return nil, pilosa.ErrNotImplemented }
go
{ "resource": "" }
q33709
TranslateRowToString
train
func (s *translateStore) TranslateRowToString(index, frame string, values uint64) (string, error) { return "", pilosa.ErrNotImplemented }
go
{ "resource": "" }
q33710
Reader
train
func (s *translateStore) Reader(ctx context.Context, off int64) (io.ReadCloser, error) { // Generate remote URL. u, err := url.Parse(s.node.URI.String()) if err != nil { return nil, err } u.Path = "/internal/translate/data" u.RawQuery = (url.Values{ "offset": {strconv.FormatInt(off, 10)}, }).Encode() // Co...
go
{ "resource": "" }
q33711
Open
train
func (g *memberSet) Open() (err error) { g.mu.Lock() g.memberlist, err = memberlist.Create(g.config.memberlistConfig) g.mu.Unlock() if err != nil { return errors.Wrap(err, "creating memberlist") } g.broadcasts = &memberlist.TransmitLimitedQueue{ NumNodes: func() int { g.mu.RLock() defer g.mu.RUnlock() ...
go
{ "resource": "" }
q33712
joinWithRetry
train
func (g *memberSet) joinWithRetry(hosts []string) error { err := retry(60, 2*time.Second, func() error { _, err := g.memberlist.Join(hosts) return err }) return err }
go
{ "resource": "" }
q33713
retry
train
func retry(attempts int, sleep time.Duration, fn func() error) (err error) { // nolint: unparam for i := 0; ; i++ { err = fn() if err == nil { return } if i >= (attempts - 1) { break } time.Sleep(sleep) log.Println("retrying after error:", err) } return fmt.Errorf("after %d attempts, last error: ...
go
{ "resource": "" }
q33714
WithTransport
train
func WithTransport(transport *Transport) memberSetOption { return func(g *memberSet) error { g.transport = transport return nil } }
go
{ "resource": "" }
q33715
WithLogOutput
train
func WithLogOutput(o io.Writer) memberSetOption { return func(g *memberSet) error { g.logOutput = o return nil } }
go
{ "resource": "" }
q33716
WithPilosaLogger
train
func WithPilosaLogger(l logger.Logger) memberSetOption { return func(g *memberSet) error { g.Logger = l return nil } }
go
{ "resource": "" }
q33717
NodeMeta
train
func (g *memberSet) NodeMeta(limit int) []byte { buf, err := g.papi.Serializer.Marshal(g.papi.Node()) if err != nil { g.Logger.Printf("marshal message error: %s", err) return []byte{} } return buf }
go
{ "resource": "" }
q33718
NotifyMsg
train
func (g *memberSet) NotifyMsg(b []byte) { err := g.papi.ClusterMessage(context.Background(), bytes.NewBuffer(b)) if err != nil { g.Logger.Printf("cluster message error: %s", err) } }
go
{ "resource": "" }
q33719
GetBroadcasts
train
func (g *memberSet) GetBroadcasts(overhead, limit int) [][]byte { return g.broadcasts.GetBroadcasts(overhead, limit) }
go
{ "resource": "" }
q33720
LocalState
train
func (g *memberSet) LocalState(join bool) []byte { m := &pilosa.NodeStatus{ Node: g.papi.Node(), Schema: &pilosa.Schema{Indexes: g.papi.Schema(context.Background())}, } for _, idx := range m.Schema.Indexes { is := &pilosa.IndexStatus{Name: idx.Name} for _, f := range idx.Fields { availableShards := roar...
go
{ "resource": "" }
q33721
MergeRemoteState
train
func (g *memberSet) MergeRemoteState(buf []byte, join bool) { err := g.papi.ClusterMessage(context.Background(), bytes.NewBuffer(buf)) if err != nil { g.Logger.Printf("merge state error: %s", err) } }
go
{ "resource": "" }
q33722
newEventReceiver
train
func newEventReceiver(logger logger.Logger, papi *pilosa.API) *eventReceiver { ger := &eventReceiver{ ch: make(chan memberlist.NodeEvent, 1), logger: logger, papi: papi, } go ger.listen() return ger }
go
{ "resource": "" }
q33723
newTransport
train
func newTransport(conf *memberlist.Config) (*memberlist.NetTransport, error) { nc := &memberlist.NetTransportConfig{ BindAddrs: []string{conf.BindAddr}, BindPort: conf.BindPort, Logger: conf.Logger, } // See comment below for details about the retry in here. makeNetRetry := func(limit int) (*memberlist.N...
go
{ "resource": "" }
q33724
MarshalJSON
train
func (cas ColumnAttrSet) MarshalJSON() ([]byte, error) { if cas.Key != "" { return json.Marshal(struct { Key string `json:"key,omitempty"` Attrs map[string]interface{} `json:"attrs,omitempty"` }{ Key: cas.Key, Attrs: cas.Attrs, }) } return json.Marshal(struct { ID uint64 ...
go
{ "resource": "" }
q33725
validateName
train
func validateName(name string) error { if !nameRegexp.Match([]byte(name)) { return errors.Wrapf(ErrName, "'%s'", name) } return nil }
go
{ "resource": "" }
q33726
AddressWithDefaults
train
func AddressWithDefaults(addr string) (*URI, error) { if addr == "" { return defaultURI(), nil } return NewURIFromAddress(addr) }
go
{ "resource": "" }
q33727
clear
train
func (c *Cache) clear() { // nolint: staticcheck,unused if c.OnEvicted != nil { for _, e := range c.cache { kv := e.Value.(*entry) c.OnEvicted(kv.key, kv.value) } } c.ll = nil c.cache = nil }
go
{ "resource": "" }
q33728
SetTLSConfig
train
func SetTLSConfig(flags *pflag.FlagSet, certificatePath *string, certificateKeyPath *string, skipVerify *bool) { flags.StringVarP(certificatePath, "tls.certificate", "", "", "TLS certificate path (usually has the .crt or .pem extension") flags.StringVarP(certificateKeyPath, "tls.key", "", "", "TLS certificate key pat...
go
{ "resource": "" }
q33729
commandClient
train
func commandClient(cmd CommandWithTLSSupport) (*http.InternalClient, error) { tlsConfig := cmd.TLSConfiguration() var TLSConfig *tls.Config if tlsConfig.CertificatePath != "" && tlsConfig.CertificateKeyPath != "" { cert, err := tls.LoadX509KeyPair(tlsConfig.CertificatePath, tlsConfig.CertificateKeyPath) if err !...
go
{ "resource": "" }
q33730
newLRUCache
train
func newLRUCache(maxEntries uint32) *lruCache { c := &lruCache{ cache: lru.New(int(maxEntries)), counts: make(map[uint64]uint64), stats: stats.NopStatsClient, } c.cache.OnEvicted = c.onEvicted return c }
go
{ "resource": "" }
q33731
Top
train
func (c *lruCache) Top() []bitmapPair { a := make([]bitmapPair, 0, len(c.counts)) for id, n := range c.counts { a = append(a, bitmapPair{ ID: id, Count: n, }) } sort.Sort(bitmapPairs(a)) return a }
go
{ "resource": "" }
q33732
NewRankCache
train
func NewRankCache(maxEntries uint32) *rankCache { return &rankCache{ maxEntries: maxEntries, thresholdBuffer: int(thresholdFactor * float64(maxEntries)), entries: make(map[uint64]uint64), stats: stats.NopStatsClient, } }
go
{ "resource": "" }
q33733
Invalidate
train
func (c *rankCache) Invalidate() { c.mu.Lock() defer c.mu.Unlock() c.invalidate() }
go
{ "resource": "" }
q33734
Recalculate
train
func (c *rankCache) Recalculate() { c.mu.Lock() defer c.mu.Unlock() c.stats.Count("cache.recalculate", 1, 1.0) c.recalculate() }
go
{ "resource": "" }
q33735
WriteTo
train
func (c *rankCache) WriteTo(w io.Writer) (n int64, err error) { panic("FIXME: TODO") }
go
{ "resource": "" }
q33736
ReadFrom
train
func (c *rankCache) ReadFrom(r io.Reader) (n int64, err error) { panic("FIXME: TODO") }
go
{ "resource": "" }
q33737
Pop
train
func (p *Pairs) Pop() interface{} { old := *p n := len(old) x := old[n-1] *p = old[0 : n-1] return x }
go
{ "resource": "" }
q33738
Add
train
func (p Pairs) Add(other []Pair) []Pair { // Create lookup of key/counts. m := make(map[uint64]uint64, len(p)) for _, pair := range p { m[pair.ID] = pair.Count } // Add/merge from other. for _, pair := range other { m[pair.ID] += pair.Count } // Convert back to slice. a := make([]Pair, 0, len(m)) for k,...
go
{ "resource": "" }
q33739
Keys
train
func (p Pairs) Keys() []uint64 { a := make([]uint64, len(p)) for i := range p { a[i] = p[i].ID } return a }
go
{ "resource": "" }
q33740
merge
train
func (p uint64Slice) merge(other []uint64) []uint64 { ret := make([]uint64, 0, len(p)) i, j := 0, 0 for i < len(p) && j < len(other) { a, b := p[i], other[j] if a == b { ret = append(ret, a) i, j = i+1, j+1 } else if a < b { ret = append(ret, a) i++ } else { ret = append(ret, b) j++ } }...
go
{ "resource": "" }
q33741
Fetch
train
func (s *simpleCache) Fetch(id uint64) (*Row, bool) { m, ok := s.cache[id] return m, ok }
go
{ "resource": "" }
q33742
Add
train
func (s *simpleCache) Add(id uint64, b *Row) { s.cache[id] = b }
go
{ "resource": "" }
q33743
Contains
train
func (a Nodes) Contains(n *Node) bool { for i := range a { if a[i] == n { return true } } return false }
go
{ "resource": "" }
q33744
ContainsID
train
func (a Nodes) ContainsID(id string) bool { for _, n := range a { if n.ID == id { return true } } return false }
go
{ "resource": "" }
q33745
Filter
train
func (a Nodes) Filter(n *Node) []*Node { other := make([]*Node, 0, len(a)) for i := range a { if a[i] != n { other = append(other, a[i]) } } return other }
go
{ "resource": "" }
q33746
FilterID
train
func (a Nodes) FilterID(id string) []*Node { other := make([]*Node, 0, len(a)) for _, node := range a { if node.ID != id { other = append(other, node) } } return other }
go
{ "resource": "" }
q33747
FilterURI
train
func (a Nodes) FilterURI(uri URI) []*Node { other := make([]*Node, 0, len(a)) for _, node := range a { if node.URI != uri { other = append(other, node) } } return other }
go
{ "resource": "" }
q33748
IDs
train
func (a Nodes) IDs() []string { ids := make([]string, len(a)) for i, n := range a { ids[i] = n.ID } return ids }
go
{ "resource": "" }
q33749
URIs
train
func (a Nodes) URIs() []URI { uris := make([]URI, len(a)) for i, n := range a { uris[i] = n.URI } return uris }
go
{ "resource": "" }
q33750
Clone
train
func (a Nodes) Clone() []*Node { other := make([]*Node, len(a)) copy(other, a) return other }
go
{ "resource": "" }
q33751
newCluster
train
func newCluster() *cluster { return &cluster{ Hasher: &jmphasher{}, partitionN: defaultPartitionN, ReplicaN: 1, joiningLeavingNodes: make(chan nodeAction, 10), // buffered channel jobs: make(map[int64]*resizeJob), closing: make(chan struct{}), joining: make(c...
go
{ "resource": "" }
q33752
isCoordinator
train
func (c *cluster) isCoordinator() bool { c.mu.RLock() defer c.mu.RUnlock() return c.unprotectedIsCoordinator() }
go
{ "resource": "" }
q33753
setCoordinator
train
func (c *cluster) setCoordinator(n *Node) error { c.mu.Lock() defer c.mu.Unlock() // Verify that the new Coordinator value matches // this node. if c.Node.ID != n.ID { return fmt.Errorf("coordinator node does not match this node") } // Update IsCoordinator on all nodes (locally). _ = c.unprotectedUpdateCoord...
go
{ "resource": "" }
q33754
updateCoordinator
train
func (c *cluster) updateCoordinator(n *Node) bool { // nolint: unparam c.mu.Lock() defer c.mu.Unlock() return c.unprotectedUpdateCoordinator(n) }
go
{ "resource": "" }
q33755
addNode
train
func (c *cluster) addNode(node *Node) error { // If the node being added is the coordinator, set it for this node. if node.IsCoordinator { c.Coordinator = node.ID } // add to cluster if !c.addNodeBasicSorted(node) { return nil } // add to topology if c.Topology == nil { return fmt.Errorf("Cluster.Topolo...
go
{ "resource": "" }
q33756
removeNode
train
func (c *cluster) removeNode(nodeID string) error { // remove from cluster c.removeNodeBasicSorted(nodeID) // remove from topology if c.Topology == nil { return fmt.Errorf("Cluster.Topology is nil") } if !c.Topology.removeID(nodeID) { return nil } // save topology return c.saveTopology() }
go
{ "resource": "" }
q33757
receiveNodeState
train
func (c *cluster) receiveNodeState(nodeID string, state string) error { c.mu.Lock() defer c.mu.Unlock() if !c.unprotectedIsCoordinator() { return nil } c.Topology.mu.Lock() changed := false if c.Topology.nodeStates[nodeID] != state { changed = true c.Topology.nodeStates[nodeID] = state for i, n := range...
go
{ "resource": "" }
q33758
determineClusterState
train
func (c *cluster) determineClusterState() (clusterState string) { if c.state == ClusterStateResizing { return ClusterStateResizing } if c.haveTopologyAgreement() && c.allNodesReady() { return ClusterStateNormal } if len(c.Topology.nodeIDs)-len(c.nodeIDs()) < c.ReplicaN && c.allNodesReady() { return ClusterSt...
go
{ "resource": "" }
q33759
unprotectedStatus
train
func (c *cluster) unprotectedStatus() *ClusterStatus { return &ClusterStatus{ ClusterID: c.id, State: c.state, Nodes: c.nodes, } }
go
{ "resource": "" }
q33760
unprotectedNodeByID
train
func (c *cluster) unprotectedNodeByID(id string) *Node { for _, n := range c.nodes { if n.ID == id { return n } } return nil }
go
{ "resource": "" }
q33761
nodePositionByID
train
func (c *cluster) nodePositionByID(nodeID string) int { for i, n := range c.nodes { if n.ID == nodeID { return i } } return -1 }
go
{ "resource": "" }
q33762
addNodeBasicSorted
train
func (c *cluster) addNodeBasicSorted(node *Node) bool { n := c.unprotectedNodeByID(node.ID) if n != nil { if n.State != node.State || n.IsCoordinator != node.IsCoordinator || n.URI != node.URI { n.State = node.State n.IsCoordinator = node.IsCoordinator n.URI = node.URI return true } return false } ...
go
{ "resource": "" }
q33763
Nodes
train
func (c *cluster) Nodes() []*Node { c.mu.RLock() defer c.mu.RUnlock() ret := make([]*Node, len(c.nodes)) copy(ret, c.nodes) return ret }
go
{ "resource": "" }
q33764
removeNodeBasicSorted
train
func (c *cluster) removeNodeBasicSorted(nodeID string) bool { i := c.nodePositionByID(nodeID) if i < 0 { return false } copy(c.nodes[i:], c.nodes[i+1:]) c.nodes[len(c.nodes)-1] = nil c.nodes = c.nodes[:len(c.nodes)-1] return true }
go
{ "resource": "" }
q33765
diff
train
func (c *cluster) diff(other *cluster) (action string, nodeID string, err error) { lenFrom := len(c.nodes) lenTo := len(other.nodes) // Determine if a node is being added or removed. if lenFrom == lenTo { return "", "", errors.New("clusters are the same size") } if lenFrom < lenTo { // Adding a node. if len...
go
{ "resource": "" }
q33766
fragSources
train
func (c *cluster) fragSources(to *cluster, idx *Index) (map[string][]*ResizeSource, error) { m := make(map[string][]*ResizeSource) // Determine if a node is being added or removed. action, diffNodeID, err := c.diff(to) if err != nil { return nil, errors.Wrap(err, "diffing") } // Initialize the map with all th...
go
{ "resource": "" }
q33767
partition
train
func (c *cluster) partition(index string, shard uint64) int { var buf [8]byte binary.BigEndian.PutUint64(buf[:], shard) // Hash the bytes and mod by partition count. h := fnv.New64a() _, _ = h.Write([]byte(index)) _, _ = h.Write(buf[:]) return int(h.Sum64() % uint64(c.partitionN)) }
go
{ "resource": "" }
q33768
ShardNodes
train
func (c *cluster) ShardNodes(index string, shard uint64) []*Node { c.mu.RLock() defer c.mu.RUnlock() return c.shardNodes(index, shard) }
go
{ "resource": "" }
q33769
shardNodes
train
func (c *cluster) shardNodes(index string, shard uint64) []*Node { return c.partitionNodes(c.partition(index, shard)) }
go
{ "resource": "" }
q33770
ownsShard
train
func (c *cluster) ownsShard(nodeID string, index string, shard uint64) bool { c.mu.RLock() defer c.mu.RUnlock() return Nodes(c.shardNodes(index, shard)).ContainsID(nodeID) }
go
{ "resource": "" }
q33771
partitionNodes
train
func (c *cluster) partitionNodes(partitionID int) []*Node { // Default replica count to between one and the number of nodes. // The replica count can be zero if there are no nodes. replicaN := c.ReplicaN if replicaN > len(c.nodes) { replicaN = len(c.nodes) } else if replicaN == 0 { replicaN = 1 } // Determi...
go
{ "resource": "" }
q33772
containsShards
train
func (c *cluster) containsShards(index string, availableShards *roaring.Bitmap, node *Node) []uint64 { var shards []uint64 availableShards.ForEach(func(i uint64) { p := c.partition(index, i) // Determine the nodes for partition. nodes := c.partitionNodes(p) for _, n := range nodes { if n.ID == node.ID { ...
go
{ "resource": "" }
q33773
needTopologyAgreement
train
func (c *cluster) needTopologyAgreement() bool { return (c.state == ClusterStateStarting || c.state == ClusterStateDegraded) && !stringSlicesAreEqual(c.Topology.nodeIDs, c.nodeIDs()) }
go
{ "resource": "" }
q33774
haveTopologyAgreement
train
func (c *cluster) haveTopologyAgreement() bool { if c.Static { return true } return stringSlicesAreEqual(c.Topology.nodeIDs, c.nodeIDs()) }
go
{ "resource": "" }
q33775
allNodesReady
train
func (c *cluster) allNodesReady() (ret bool) { if c.Static { return true } for _, id := range c.nodeIDs() { if c.Topology.nodeStates[id] != nodeStateReady { return false } } return true }
go
{ "resource": "" }
q33776
listenForJoins
train
func (c *cluster) listenForJoins() { c.wg.Add(1) go func() { defer c.wg.Done() // When a cluster starts, the state is STARTING. // We first want to wait for at least one node to join. // Then we want to clear out the joiningLeavingNodes queue (buffered channel). // Then we want to set the cluster state to ...
go
{ "resource": "" }
q33777
completeCurrentJob
train
func (c *cluster) completeCurrentJob(state string) error { c.mu.Lock() defer c.mu.Unlock() return c.unprotectedCompleteCurrentJob(state) }
go
{ "resource": "" }
q33778
job
train
func (c *cluster) job(id int64) *resizeJob { c.mu.RLock() defer c.mu.RUnlock() return c.jobs[id] }
go
{ "resource": "" }
q33779
newResizeJob
train
func newResizeJob(existingNodes []*Node, node *Node, action string) *resizeJob { // Build a map of uris to track their resize status. // The value for a node will be set to true after that node // has indicated that it has completed all resize instructions. ids := make(map[string]bool) if action == resizeJobActi...
go
{ "resource": "" }
q33780
run
train
func (j *resizeJob) run() error { j.Logger.Printf("run resizeJob") // Set job state to RUNNING. j.setState(resizeJobStateRunning) // Job can be considered done in the case where it doesn't require any action. if !j.nodesArePending() { j.Logger.Printf("resizeJob contains no pending tasks; mark as done") j.resu...
go
{ "resource": "" }
q33781
isComplete
train
func (j *resizeJob) isComplete() bool { switch j.state { case resizeJobStateDone, resizeJobStateAborted: return true default: return false } }
go
{ "resource": "" }
q33782
nodesArePending
train
func (j *resizeJob) nodesArePending() bool { for _, complete := range j.IDs { if !complete { return true } } return false }
go
{ "resource": "" }
q33783
ContainsID
train
func (n nodeIDs) ContainsID(id string) bool { for _, nid := range n { if nid == id { return true } } return false }
go
{ "resource": "" }
q33784
ContainsID
train
func (t *Topology) ContainsID(id string) bool { t.mu.RLock() defer t.mu.RUnlock() return t.containsID(id) }
go
{ "resource": "" }
q33785
addID
train
func (t *Topology) addID(nodeID string) bool { t.mu.Lock() defer t.mu.Unlock() if t.containsID(nodeID) { return false } t.nodeIDs = append(t.nodeIDs, nodeID) sort.Slice(t.nodeIDs, func(i, j int) bool { return t.nodeIDs[i] < t.nodeIDs[j] }) return true }
go
{ "resource": "" }
q33786
removeID
train
func (t *Topology) removeID(nodeID string) bool { t.mu.Lock() defer t.mu.Unlock() i := t.positionByID(nodeID) if i < 0 { return false } copy(t.nodeIDs[i:], t.nodeIDs[i+1:]) t.nodeIDs[len(t.nodeIDs)-1] = "" t.nodeIDs = t.nodeIDs[:len(t.nodeIDs)-1] return true }
go
{ "resource": "" }
q33787
loadTopology
train
func (c *cluster) loadTopology() error { buf, err := ioutil.ReadFile(filepath.Join(c.Path, ".topology")) if os.IsNotExist(err) { c.Topology = newTopology() return nil } else if err != nil { return errors.Wrap(err, "reading file") } var pb internal.Topology if err := proto.Unmarshal(buf, &pb); err != nil { ...
go
{ "resource": "" }
q33788
saveTopology
train
func (c *cluster) saveTopology() error { if err := os.MkdirAll(c.Path, 0777); err != nil { return errors.Wrap(err, "creating directory") } if buf, err := proto.Marshal(encodeTopology(c.Topology)); err != nil { return errors.Wrap(err, "marshalling") } else if err := ioutil.WriteFile(filepath.Join(c.Path, ".top...
go
{ "resource": "" }
q33789
ReceiveEvent
train
func (c *cluster) ReceiveEvent(e *NodeEvent) (err error) { // Ignore events sent from this node. if e.Node.ID == c.Node.ID { return nil } switch e.Event { case NodeJoin: c.logger.Debugf("nodeJoin of %s on %s", e.Node.URI, c.Node.URI) // Ignore the event if this is not the coordinator. if !c.isCoordinator(...
go
{ "resource": "" }
q33790
nodeJoin
train
func (c *cluster) nodeJoin(node *Node) error { c.mu.Lock() defer c.mu.Unlock() c.logger.Printf("node join event on coordinator, node: %s, id: %s", node.URI, node.ID) if c.needTopologyAgreement() { // A host that is not part of the topology can't be added to the STARTING cluster. if !c.Topology.ContainsID(node.I...
go
{ "resource": "" }
q33791
nodeLeave
train
func (c *cluster) nodeLeave(nodeID string) error { c.mu.Lock() defer c.mu.Unlock() // Refuse the request if this is not the coordinator. if !c.unprotectedIsCoordinator() { return fmt.Errorf("node removal requests are only valid on the coordinator node: %s", c.unprotectedCoordinatorNode().ID) } if c.state !=...
go
{ "resource": "" }
q33792
unprotectedPreviousNode
train
func (c *cluster) unprotectedPreviousNode() *Node { if len(c.nodes) <= 1 { return nil } pos := c.nodePositionByID(c.Node.ID) if pos == -1 { return nil } else if pos == 0 { return c.nodes[len(c.nodes)-1] } else { return c.nodes[pos-1] } }
go
{ "resource": "" }
q33793
OptServerLogger
train
func OptServerLogger(l logger.Logger) ServerOption { return func(s *Server) error { s.logger = l return nil } }
go
{ "resource": "" }
q33794
OptServerReplicaN
train
func OptServerReplicaN(n int) ServerOption { return func(s *Server) error { s.cluster.ReplicaN = n return nil } }
go
{ "resource": "" }
q33795
OptServerDataDir
train
func OptServerDataDir(dir string) ServerOption { return func(s *Server) error { s.dataDir = dir return nil } }
go
{ "resource": "" }
q33796
OptServerAttrStoreFunc
train
func OptServerAttrStoreFunc(af func(string) AttrStore) ServerOption { return func(s *Server) error { s.holder.NewAttrStore = af return nil } }
go
{ "resource": "" }
q33797
OptServerAntiEntropyInterval
train
func OptServerAntiEntropyInterval(interval time.Duration) ServerOption { return func(s *Server) error { s.antiEntropyInterval = interval return nil } }
go
{ "resource": "" }
q33798
OptServerLongQueryTime
train
func OptServerLongQueryTime(dur time.Duration) ServerOption { return func(s *Server) error { s.cluster.longQueryTime = dur return nil } }
go
{ "resource": "" }
q33799
OptServerMaxWritesPerRequest
train
func OptServerMaxWritesPerRequest(n int) ServerOption { return func(s *Server) error { s.maxWritesPerRequest = n return nil } }
go
{ "resource": "" }