func getPeerHandler(w http.ResponseWriter, r *http.Request) {
p := mux.Vars(r)
id := p["peerid"]
if id == "" {
rest.SendHTTPError(w, http.StatusBadRequest, "peerid not present in request")
return
}
if peer, err := peer.GetPeerF(id); err != nil {
rest.SendHTTPError(w, http.StatusNotFound, err.Error())
} else {
rest.SendHTTPResponse(w, http.StatusOK, peer)
}
}
// NewBrickEntries creates the brick list
func NewBrickEntries(bricks []string) ([]brick.Brickinfo, error) {
var brickInfos []brick.Brickinfo
var binfo brick.Brickinfo
for _, b := range bricks {
host, path, e := utils.ParseHostAndBrickPath(b)
if e != nil {
return nil, e
}
binfo.Path, e = absFilePath(path)
if e != nil {
log.Error("Failed to convert the brickpath to absolute path")
return nil, e
}
u := uuid.Parse(host)
if u != nil {
// Host specified is UUID
binfo.ID = u
p, e := peer.GetPeerF(host)
if e != nil {
return nil, e
}
binfo.Hostname = p.Addresses[0]
} else {
binfo.ID, e = peer.GetPeerIDByAddrF(host)
if e != nil {
return nil, e
}
binfo.Hostname = host
}
brickInfos = append(brickInfos, binfo)
}
return brickInfos, nil
}
func deletePeerHandler(w http.ResponseWriter, r *http.Request) {
// FIXME: This is not txn based, yet. Behaviour when multiple simultaneous
// delete peer requests are sent to same node is unknown.
peerReq := mux.Vars(r)
id := peerReq["peerid"]
if id == "" {
rest.SendHTTPError(w, http.StatusBadRequest, "peerid not present in the request")
return
}
// Check whether the member exists
p, e := peer.GetPeerF(id)
if e != nil || p == nil {
rest.SendHTTPError(w, http.StatusNotFound, "peer not found in cluster")
return
}
// Removing self should be disallowed (like in glusterd1)
if id == gdctx.MyUUID.String() {
rest.SendHTTPError(w, http.StatusBadRequest, "Removing self is disallowed.")
return
}
remotePeerAddress, err := utils.FormRemotePeerAddress(p.Addresses[0])
if err != nil {
rest.SendHTTPError(w, http.StatusBadRequest, err.Error())
return
}
// Validate whether the peer can be deleted
rsp, e := ValidateDeletePeer(remotePeerAddress, id)
if e != nil {
rest.SendHTTPError(w, http.StatusInternalServerError, rsp.OpError)
return
}
// Remove the peer from the store
if e := peer.DeletePeer(id); e != nil {
log.WithFields(log.Fields{
"er": e,
"peer": id,
}).Error("Failed to remove peer from the store")
rest.SendHTTPError(w, http.StatusInternalServerError, e.Error())
} else {
rest.SendHTTPResponse(w, http.StatusNoContent, nil)
}
// Delete member from etcd cluster
e = etcdmgmt.EtcdMemberRemove(p.MemberID)
if e != nil {
log.WithFields(log.Fields{
"er": e,
"peer": id,
}).Error("Failed to remove member from etcd cluster")
rest.SendHTTPError(w, http.StatusInternalServerError, e.Error())
return
}
// Remove data dir of etcd on remote machine. Restart etcd on remote machine
// in standalone (single cluster) mode.
var etcdConf EtcdConfigReq
etcdConf.DeletePeer = true
etcdrsp, e := ConfigureRemoteETCD(remotePeerAddress, &etcdConf)
if e != nil {
log.WithField("err", e).Error("Failed to configure remote etcd.")
rest.SendHTTPError(w, http.StatusInternalServerError, etcdrsp.OpError)
return
}
}
// RunStepOn will run the step on the specified node
func RunStepOn(step string, node uuid.UUID, c TxnCtx) (TxnCtx, error) {
// TODO: I'm creating connections on demand. This should be changed so that
// we have long term connections.
p, err := peer.GetPeerF(node.String())
if err != nil {
c.Logger().WithFields(log.Fields{
"peerid": node.String(),
"error": err,
}).Error("peer not found")
return nil, err
}
logger := c.Logger().WithField("remotepeer", p.ID.String()+"("+p.Name+")")
var conn *grpc.ClientConn
remote, err := utils.FormRemotePeerAddress(p.Addresses[0])
if err != nil {
return nil, err
}
conn, err = grpc.Dial(remote, grpc.WithInsecure())
if err == nil && conn != nil {
logger.WithFields(log.Fields{
"remote": remote,
}).Debug("connected to remote")
}
if conn == nil {
logger.WithFields(log.Fields{
"error": err,
"remote": p.Addresses,
}).Error("failed to grpc.Dial remote")
return nil, err
}
defer conn.Close()
client := NewTxnSvcClient(conn)
req := &TxnStepReq{
StepFunc: step,
}
data, err := json.Marshal(c)
if err != nil {
logger.WithError(err).Error("failed to JSON marshal transaction context")
return nil, err
}
req.Context = data
var rsp *TxnStepResp
rsp, err = client.RunStep(netctx.TODO(), req)
if err != nil {
logger.WithFields(log.Fields{
"error": err,
"rpc": "TxnSvc.RunStep",
}).Error("failed RPC call")
return nil, err
}
if rsp.Error != "" {
logger.WithError(errors.New(rsp.Error)).Error("TxnSvc.Runstep failed on peer")
return nil, errors.New(rsp.Error)
}
rspCtx := new(Tctx)
err = json.Unmarshal(rsp.Resp, rspCtx)
if err != nil {
logger.WithError(err).Error("failed to JSON unmarhsal transaction context")
}
return rspCtx, err
}