SERVER-18495 Enable FSM replication tests

             Increase oplogSize for tests to 100MB from 40MB (default)

2 files changed, 11 insertions, 6 deletions

diff --git a/jstests/concurrency/fsm_all_replication.js b/jstests/concurrency/fsm_all_replication.js
index 552cd2a91dc..1fef4e08ab4 100644
--- a/jstests/concurrency/fsm_all_replication.js
+++ b/jstests/concurrency/fsm_all_replication.js
@@ -6,11 +6,12 @@ var dir = 'jstests/concurrency/fsm_workloads';
 
 var blacklist = [
     // Disabled due to known bugs
-    'agg_sort_external.js', // SERVER-16700 Deadlock on WiredTiger LSM
-    'findAndModify_update_grow.js', // SERVER-17021 Perf. Regression for WT overflow items
+    'reindex_background.js', // SERVER-17923 Multiple background indexes can cause fatal error
     'yield_sort.js', // SERVER-17011 Cursor can return objects out of order if updated during query
 
     // Disabled due to MongoDB restrictions and/or workload restrictions
+    'agg_group_external.js', // uses >100MB of data, and is flaky
+    'agg_sort_external.js', // uses >100MB of data, and is flaky
 
     // These workloads sometimes trigger 'Could not lock auth data update lock'
     // errors because the AuthorizationManager currently waits for only five
@@ -21,7 +22,6 @@ var blacklist = [
     'auth_drop_user.js', // SERVER-16739 OpenSSL libcrypto crash
 ].map(function(file) { return dir + '/' + file; });
 
-// SERVER-16196 re-enable executing workloads against replica sets
-// runWorkloadsSerially(ls(dir).filter(function(file) {
-//     return !Array.contains(blacklist, file);
-// }), { replication: true });
+runWorkloadsSerially(ls(dir).filter(function(file) {
+    return !Array.contains(blacklist, file);
+}), { replication: true });
diff --git a/jstests/concurrency/fsm_libs/cluster.js b/jstests/concurrency/fsm_libs/cluster.js
index 18e4056e5f8..52f46699993 100644
--- a/jstests/concurrency/fsm_libs/cluster.js
+++ b/jstests/concurrency/fsm_libs/cluster.js
@@ -86,6 +86,9 @@ var Cluster = function(options) {
             if (options.replication) {
                 shardConfig.rs = {
                     nodes: 3,
+                    // Increase the oplog size (in MB) to prevent rollover
+                    // during write-heavy workloads
+                    oplogSize: 1024,
                     verbose: verbosityLevel
                 };
             }
@@ -133,6 +136,8 @@ var Cluster = function(options) {
             // TODO: allow 'options' to specify the number of nodes
             var replSetConfig = {
                 nodes: 3,
+                // Increase the oplog size (in MB) to prevent rollover during write-heavy workloads
+                oplogSize: 1024,
                 nodeOptions: { verbose: verbosityLevel }
             };