diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/WhisperServerService.java b/service/src/main/java/org/whispersystems/textsecuregcm/WhisperServerService.java
index b48ecaeeb..c41ff2136 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/WhisperServerService.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/WhisperServerService.java
@@ -435,8 +435,6 @@ public class WhisperServerService extends Application<WhisperServerConfiguration
         minThreads(availableProcessors).  // mostly this is IO bound so tying to number of processors is tenuous at best
         allowCoreThreadTimeOut(true).
         build();
-    ExecutorService profileMigrationExperimentExecutor = environment.lifecycle()
-        .executorService(name(getClass(), "profileMigrationExperiment-%d")).minThreads(8).maxThreads(8).build();
 
     StripeManager stripeManager = new StripeManager(config.getStripe().getApiKey(), stripeExecutor,
         config.getStripe().getIdempotencyKeyGenerator(), config.getStripe().getBoostDescription());
@@ -475,8 +473,7 @@ public class WhisperServerService extends Application<WhisperServerConfiguration
     StoredVerificationCodeManager pendingAccountsManager  = new StoredVerificationCodeManager(pendingAccounts);
     StoredVerificationCodeManager pendingDevicesManager   = new StoredVerificationCodeManager(pendingDevices);
     UsernamesManager           usernamesManager           = new UsernamesManager(usernames, reservedUsernames, cacheCluster);
-    ProfilesManager            profilesManager            = new ProfilesManager(profiles, profilesDynamoDb, cacheCluster,
-        dynamicConfigurationManager, profileMigrationExperimentExecutor);
+    ProfilesManager            profilesManager            = new ProfilesManager(profiles, profilesDynamoDb, cacheCluster, dynamicConfigurationManager);
     MessagesCache              messagesCache              = new MessagesCache(messagesCluster, messagesCluster, keyspaceNotificationDispatchExecutor);
     PushLatencyManager         pushLatencyManager         = new PushLatencyManager(metricsCluster, dynamicConfigurationManager);
     ReportMessageManager       reportMessageManager       = new ReportMessageManager(reportMessageDynamoDb, rateLimitersCluster, Metrics.globalRegistry, config.getReportMessageConfiguration().getCounterTtl());
diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/configuration/dynamic/DynamicProfileMigrationConfiguration.java b/service/src/main/java/org/whispersystems/textsecuregcm/configuration/dynamic/DynamicProfileMigrationConfiguration.java
index e12cbcb3d..42e4cef01 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/configuration/dynamic/DynamicProfileMigrationConfiguration.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/configuration/dynamic/DynamicProfileMigrationConfiguration.java
@@ -21,6 +21,9 @@ public class DynamicProfileMigrationConfiguration {
   @JsonProperty
   private boolean dynamoDbReadPrimary = false;
 
+  @JsonProperty
+  private boolean logMismatches = false;
+
   public boolean isDynamoDbDeleteEnabled() {
     return dynamoDbDeleteEnabled;
   }
@@ -36,4 +39,8 @@ public class DynamicProfileMigrationConfiguration {
   public boolean isDynamoDbReadPrimary() {
     return dynamoDbReadPrimary;
   }
+
+  public boolean isLogMismatches() {
+    return logMismatches;
+  }
 }
diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/storage/ProfilesManager.java b/service/src/main/java/org/whispersystems/textsecuregcm/storage/ProfilesManager.java
index 1f1236822..5f48be7c0 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/storage/ProfilesManager.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/storage/ProfilesManager.java
@@ -18,7 +18,6 @@ import org.whispersystems.textsecuregcm.util.SystemMapper;
 import java.io.IOException;
 import java.util.Optional;
 import java.util.UUID;
-import java.util.concurrent.Executor;
 
 public class ProfilesManager {
 
@@ -32,19 +31,16 @@ public class ProfilesManager {
   private final DynamicConfigurationManager<DynamicConfiguration> dynamicConfigurationManager;
   private final ObjectMapper mapper;
 
-  private final Executor migrationExperimentExecutor;
   private final Experiment migrationExperiment = new Experiment("profileMigration");
 
   public ProfilesManager(final Profiles profiles,
       final ProfilesDynamoDb profilesDynamoDb,
       final FaultTolerantRedisCluster cacheCluster,
-      final DynamicConfigurationManager<DynamicConfiguration> dynamicConfigurationManager,
-      final Executor migrationExperimentExecutor) {
+      final DynamicConfigurationManager<DynamicConfiguration> dynamicConfigurationManager) {
     this.profiles = profiles;
     this.profilesDynamoDb = profilesDynamoDb;
     this.cacheCluster = cacheCluster;
     this.dynamicConfigurationManager = dynamicConfigurationManager;
-    this.migrationExperimentExecutor = migrationExperimentExecutor;
     this.mapper = SystemMapper.getMapper();
   }
 
@@ -76,7 +72,13 @@ public class ProfilesManager {
         profile = profiles.get(uuid, version);
 
         if (dynamicConfigurationManager.getConfiguration().getProfileMigrationConfiguration().isDynamoDbReadForComparisonEnabled()) {
-          migrationExperiment.compareSupplierResultAsync(profile, () -> profilesDynamoDb.get(uuid, version), migrationExperimentExecutor);
+          final Optional<VersionedProfile> dynamoProfile = profilesDynamoDb.get(uuid, version);
+          migrationExperiment.compareSupplierResult(profile, () -> dynamoProfile);
+
+          if (profile.isEmpty() && dynamoProfile.isPresent() &&
+              dynamicConfigurationManager.getConfiguration().getProfileMigrationConfiguration().isLogMismatches()) {
+            logger.info("Profile {}/{} absent from relational database, but present in DynamoDB", uuid, version);
+          }
         }
       }
 
diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/workers/DeleteUserCommand.java b/service/src/main/java/org/whispersystems/textsecuregcm/workers/DeleteUserCommand.java
index a0c305a77..8d5055d3d 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/workers/DeleteUserCommand.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/workers/DeleteUserCommand.java
@@ -212,7 +212,7 @@ public class DeleteUserCommand extends EnvironmentCommand<WhisperServerConfigura
           configuration.getDirectoryConfiguration().getSqsConfiguration());
       UsernamesManager usernamesManager = new UsernamesManager(usernames, reservedUsernames, cacheCluster);
       ProfilesManager profilesManager = new ProfilesManager(profiles, profilesDynamoDb, cacheCluster,
-          dynamicConfigurationManager, Executors.newSingleThreadExecutor());
+          dynamicConfigurationManager);
       ReportMessageDynamoDb reportMessageDynamoDb = new ReportMessageDynamoDb(reportMessagesDynamoDb,
           configuration.getReportMessageDynamoDbConfiguration().getTableName(),
           configuration.getReportMessageConfiguration().getReportTtl());
diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/workers/SetUserDiscoverabilityCommand.java b/service/src/main/java/org/whispersystems/textsecuregcm/workers/SetUserDiscoverabilityCommand.java
index 1b885cfd7..8ab69b12c 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/workers/SetUserDiscoverabilityCommand.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/workers/SetUserDiscoverabilityCommand.java
@@ -214,7 +214,7 @@ public class SetUserDiscoverabilityCommand extends EnvironmentCommand<WhisperSer
           configuration.getDirectoryConfiguration().getSqsConfiguration());
       UsernamesManager usernamesManager = new UsernamesManager(usernames, reservedUsernames, cacheCluster);
       ProfilesManager profilesManager = new ProfilesManager(profiles, profilesDynamoDb, cacheCluster,
-          dynamicConfigurationManager, Executors.newSingleThreadExecutor());
+          dynamicConfigurationManager);
       ReportMessageDynamoDb reportMessageDynamoDb = new ReportMessageDynamoDb(reportMessagesDynamoDb,
           configuration.getReportMessageDynamoDbConfiguration().getTableName(),
           configuration.getReportMessageConfiguration().getReportTtl());
diff --git a/service/src/test/java/org/whispersystems/textsecuregcm/tests/storage/ProfilesManagerTest.java b/service/src/test/java/org/whispersystems/textsecuregcm/tests/storage/ProfilesManagerTest.java
index 9a16b52dc..b6b1a6d5a 100644
--- a/service/src/test/java/org/whispersystems/textsecuregcm/tests/storage/ProfilesManagerTest.java
+++ b/service/src/test/java/org/whispersystems/textsecuregcm/tests/storage/ProfilesManagerTest.java
@@ -22,7 +22,6 @@ import io.lettuce.core.cluster.api.sync.RedisAdvancedClusterCommands;
 import java.util.Base64;
 import java.util.Optional;
 import java.util.UUID;
-import java.util.concurrent.Executor;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.whispersystems.textsecuregcm.configuration.dynamic.DynamicConfiguration;
@@ -63,8 +62,7 @@ public class ProfilesManagerTest {
     profilesManager = new ProfilesManager(profiles,
         mock(ProfilesDynamoDb.class),
         cacheCluster,
-        dynamicConfigurationManager,
-        mock(Executor.class));
+        dynamicConfigurationManager);
   }
 
   @Test