rollover bug

code/client/ltv-client.js

@@ -58,7 +58,7 @@ jQuery.get('/startLocal/ltv-bridge.js', (res) => {
                             type: "plot update request",
                             lastRecvdIndice: lastRecvdIndice 
                         }))
-                        setTimeout(reqData, 100)    
+                        setTimeout(reqData, 50)    
                     } else {
                         console.error("WS Closed")
                     }

code/local/ltv-bridge.js

@@ -20,7 +20,15 @@ WSSPipe.start().then((ws) => {
 			} else if (msg.lastRecvdIndice + 500 < indice){ // missed more than 500 data pts, reset 
 				msg.lastRecvdIndice = indice - 500 
 			}
-			resp.array = store.slice(msg.lastRecvdIndice)
+			// find indice (by identifier) of the requested 
+			let ind = store.find((elem) => {
+				return (elem[0] == msg.lastRecvdIndice)
+			})
+			if(ind){
+				resp.array = store.slice(ind)
+			} else {
+				resp.array = []
+			}
 			ws.send(JSON.stringify(resp))	
 		}
     }
@@ -112,8 +120,9 @@ let onPacket = (pck) => {
 			store.push([indice, data.inspState, data.proxPres, data.xdcrFlow, data.volume])
 			indice ++ 
 			// occasionally lop off 1000 entries, so as not to explode local memory 
-			if(store.length > 5000){
-				store = store.slice(1000)
+			if(store.length > 3000){
+				console.log("rollover")
+				store = store.slice(-2000)
 			}
             //console.log(data)
             break;