Removed follower reads

Author: Eric Harmeling

roach-data-jdbc/src/main/java/io/roach/data/jdbc/AccountController.java

@@ -84,7 +84,6 @@ public ResponseEntity<RepresentationModel> index() {
      */
     @GetMapping("/account")
     @Transactional(propagation = REQUIRES_NEW)
-    @TimeTravel // We dont need the result to be authoritative, so any follower replica can service the read
     public HttpEntity<PagedModel<AccountModel>> listAccounts(
             @PageableDefault(size = 5, direction = Sort.Direction.ASC) Pageable page) {
         return ResponseEntity

roach-data-jdbc/src/main/java/io/roach/data/jdbc/TimeTravel.java

@@ -38,10 +38,6 @@ public class TransactionHintsAspect {
     public void anyTransactionBoundaryOperation(Transactional transactional) {
     }
 
-    @Pointcut("execution(* io.roach..*(..)) && @annotation(followerRead)")
-    public void anyFollowerReadOperation(TimeTravel followerRead) {
-    }
-
     @Around(value = "anyTransactionBoundaryOperation(transactional)",
             argNames = "pjp,transactional")
     public Object setTransactionAttributes(ProceedingJoinPoint pjp, Transactional transactional)
@@ -64,21 +60,4 @@ public Object setTransactionAttributes(ProceedingJoinPoint pjp, Transactional tr
 
         return pjp.proceed();
     }
-
-    @Around(value = "anyFollowerReadOperation(timeTravel)",
-            argNames = "pjp,timeTravel")
-    public Object setTimeTravelAttributes(ProceedingJoinPoint pjp, TimeTravel timeTravel)
-            throws Throwable {
-        Assert.isTrue(TransactionSynchronizationManager.isActualTransactionActive(), "TX not active");
-
-        logger.info("Providing {} via follower read", pjp.getSignature().toShortString());
-
-        if (timeTravel.value() >= 0) {
-            jdbcTemplate.update("SET TRANSACTION AS OF SYSTEM TIME INTERVAL '" + timeTravel.value() + "'");
-        } else {
-            jdbcTemplate.execute("SET TRANSACTION AS OF SYSTEM TIME experimental_follower_read_timestamp()");
-        }
-
-        return pjp.proceed();
-    }
 }