Repeat getting global transaction status from arbiter until success during recovery.

kvap · kvap · commit a4ca34c82c6b · 2015-12-04T16:50:49.000+03:00
diff --git a/contrib/pg_dtm/pg_dtm.c b/contrib/pg_dtm/pg_dtm.c
@@ -681,8 +681,10 @@ static void DtmSetTransactionStatus(TransactionId xid, int nsubxids, Transaction
 	}
 	else
 	{
-		XidStatus gs;
-		gs = DtmGlobalGetTransStatus(xid, false);        
+		XidStatus gs = -1;
+		while (gs == -1) {
+			gs = DtmGlobalGetTransStatus(xid, true);
+		}
 		if (gs != TRANSACTION_STATUS_UNKNOWN) { 
 			status = gs;
 		}

Original file line number	Diff line number	Diff line change
`@@ -681,8 +681,10 @@ static void DtmSetTransactionStatus(TransactionId xid, int nsubxids, Transaction`
`681`	`681`	`}`
`682`	`682`	`else`
`683`	`683`	`{`
`684`		`- XidStatus gs;`
`685`		`- gs = DtmGlobalGetTransStatus(xid, false);`
	`684`	`+ XidStatus gs = -1;`
	`685`	`+ while (gs == -1) {`
	`686`	`+ gs = DtmGlobalGetTransStatus(xid, true);`
	`687`	`+ }`
`686`	`688`	`if (gs != TRANSACTION_STATUS_UNKNOWN) {`
`687`	`689`	`status = gs;`
`688`	`690`	`}`