diff --git a/arangod/MMFiles/MMFilesCollection.cpp b/arangod/MMFiles/MMFilesCollection.cpp
index 0ad8e51c71..eb1f1b8c9f 100644
--- a/arangod/MMFiles/MMFilesCollection.cpp
+++ b/arangod/MMFiles/MMFilesCollection.cpp
@@ -701,19 +701,47 @@ int MMFilesCollection::close() {
 
   {
     // We also have to unload the indexes.
-    READ_LOCKER(guard, _indexesLock);  /// TODO - DEADLOCK!?!?
     WRITE_LOCKER(writeLocker, _dataLock);
+
+    READ_LOCKER_EVENTUAL(guard, _indexesLock); 
+
     for (auto& idx : _indexes) {
       idx->unload();
     }
   }
 
   // wait until ditches have been processed fully
-  while (_ditches.contains(MMFilesDitch::TRI_DITCH_DATAFILE_DROP) ||
-         _ditches.contains(MMFilesDitch::TRI_DITCH_DATAFILE_RENAME) ||
-         _ditches.contains(MMFilesDitch::TRI_DITCH_COMPACTION)) {
-    WRITE_UNLOCKER(unlocker, _logicalCollection.lock());
-    std::this_thread::sleep_for(std::chrono::milliseconds(20));
+  int tries = 0;
+  while (true) {
+    bool hasDocumentDitch = _ditches.contains(MMFilesDitch::TRI_DITCH_DOCUMENT);
+    bool hasOtherDitch = (_ditches.contains(MMFilesDitch::TRI_DITCH_DATAFILE_DROP) ||
+                          _ditches.contains(MMFilesDitch::TRI_DITCH_DATAFILE_RENAME) ||
+                          _ditches.contains(MMFilesDitch::TRI_DITCH_REPLICATION) ||
+                          _ditches.contains(MMFilesDitch::TRI_DITCH_COMPACTION));
+   
+    if (!hasDocumentDitch && !hasOtherDitch) {
+      // we can abort now
+      break;
+    } 
+
+    // give the cleanup thread more time to clean up
+    {
+      WRITE_UNLOCKER(unlocker, _logicalCollection.lock());
+      std::this_thread::sleep_for(std::chrono::milliseconds(20));
+    }
+
+    if ((++tries % 10) == 0) {
+      if (hasDocumentDitch) {
+        LOG_TOPIC(WARN, Logger::ENGINES) << "waiting for cleanup of document ditches for collection '" << _logicalCollection.name() << "'. has other: " << hasOtherDitch; 
+      } else {
+        LOG_TOPIC(WARN, Logger::ENGINES) << "waiting for cleanup of ditches for collection '" << _logicalCollection.name() << "'";
+      }
+    }
+
+    if (tries == 60 && !hasOtherDitch) {
+      // give it up after a minute - this will close the collection at all cost
+      break;
+    }
   }
 
   {
diff --git a/arangod/MMFiles/MMFilesDitch.cpp b/arangod/MMFiles/MMFilesDitch.cpp
index 9eb427af84..1cad559eee 100644
--- a/arangod/MMFiles/MMFilesDitch.cpp
+++ b/arangod/MMFiles/MMFilesDitch.cpp
@@ -125,7 +125,6 @@ void MMFilesDitches::destroy() {
     } else if (type == MMFilesDitch::TRI_DITCH_DOCUMENT) {
       LOG_TOPIC(ERR, arangodb::Logger::ENGINES)
           << "logic error. shouldn't have document ditches on unload";
-      TRI_ASSERT(false);
     } else {
       LOG_TOPIC(ERR, arangodb::Logger::ENGINES) << "unknown ditch type";
     }
@@ -279,16 +278,7 @@ void MMFilesDitches::freeMMFilesDocumentDitch(MMFilesDocumentDitch* ditch, bool
     TRI_ASSERT(ditch->usedByTransaction() == true);
   }
 
-  {
-    MUTEX_LOCKER(mutexLocker, _lock);
-
-    unlink(ditch);
-
-    // decrease counter
-    --_numMMFilesDocumentMMFilesDitches;
-  }
-
-  delete ditch;
+  freeDitch(ditch);
 }
 
 /// @brief creates a new document ditch and links it
diff --git a/arangod/MMFiles/MMFilesEngine.cpp b/arangod/MMFiles/MMFilesEngine.cpp
index 648fa3910f..70ad822de5 100644
--- a/arangod/MMFiles/MMFilesEngine.cpp
+++ b/arangod/MMFiles/MMFilesEngine.cpp
@@ -3186,8 +3186,14 @@ char* MMFilesEngine::nextFreeMarkerPosition(LogicalCollection* collection, TRI_v
     if (ditch == nullptr) {
       THROW_ARANGO_EXCEPTION(TRI_ERROR_OUT_OF_MEMORY);
     }
-
-    cache->addDitch(ditch);
+ 
+    try {
+      cache->addDitch(ditch);
+    } catch (...) {
+      // prevent leaking here
+      arangodb::MMFilesCollection::toMMFilesCollection(collection)->ditches()->freeDitch(ditch);
+      throw;
+    }
   }
 
   TRI_ASSERT(dst != nullptr);
diff --git a/arangod/MMFiles/mmfiles-replication-dump.cpp b/arangod/MMFiles/mmfiles-replication-dump.cpp
index 912ac69802..32ad5fbbc4 100644
--- a/arangod/MMFiles/mmfiles-replication-dump.cpp
+++ b/arangod/MMFiles/mmfiles-replication-dump.cpp
@@ -354,10 +354,6 @@ static int DumpCollection(MMFilesReplicationDumpContext* dump,
                           LogicalCollection* collection, TRI_voc_tick_t databaseId,
                           TRI_voc_cid_t collectionId, TRI_voc_tick_t dataMin,
                           TRI_voc_tick_t dataMax, bool withTicks, bool useVst = false) {
-  LOG_TOPIC(TRACE, arangodb::Logger::REPLICATION)
-      << "dumping collection " << collection->id() << ", tick range " << dataMin
-      << " - " << dataMax;
-
   bool const isEdgeCollection = (collection->type() == TRI_COL_TYPE_EDGE);
 
   // setup some iteration state
@@ -415,8 +411,8 @@ static int DumpCollection(MMFilesReplicationDumpContext* dump,
       dump->_bufferFull = false;
     }
 
-    LOG_TOPIC(TRACE, arangodb::Logger::REPLICATION)
-        << "dumped collection " << collection->id() << ", tick range "
+    LOG_TOPIC(DEBUG, arangodb::Logger::REPLICATION)
+        << "dumped collection '" << collection->name() << "', tick range "
         << dataMin << " - " << dataMax << ", markers: " << numMarkers
         << ", last found tick: " << dump->_lastFoundTick
         << ", hasMore: " << dump->_hasMore << ", buffer full: " << dump->_bufferFull;
@@ -446,6 +442,9 @@ int MMFilesDumpCollectionReplication(MMFilesReplicationDumpContext* dump,
                                      TRI_voc_tick_t dataMin,
                                      TRI_voc_tick_t dataMax, bool withTicks) {
   TRI_ASSERT(collection != nullptr);
+  
+  LOG_TOPIC(DEBUG, arangodb::Logger::REPLICATION)
+      << "dumping collection '" << collection->name() << "', tick range " << dataMin << " - " << dataMax;
 
   // get a custom type handler
   auto customTypeHandler = dump->_transactionContext->orderCustomTypeHandler();
@@ -458,6 +457,9 @@ int MMFilesDumpCollectionReplication(MMFilesReplicationDumpContext* dump,
   if (b == nullptr) {
     return TRI_ERROR_OUT_OF_MEMORY;
   }
+  
+  // always execute this
+  TRI_DEFER(mmfiles->ditches()->freeDitch(b));
 
   // block compaction
   int res;
@@ -473,9 +475,6 @@ int MMFilesDumpCollectionReplication(MMFilesReplicationDumpContext* dump,
     }
   }
 
-  // always execute this
-  mmfiles->ditches()->freeDitch(b);
-
   return res;
 }
 
@@ -484,7 +483,7 @@ int MMFilesDumpLogReplication(MMFilesReplicationDumpContext* dump,
                               std::unordered_set<TRI_voc_tid_t> const& transactionIds,
                               TRI_voc_tick_t firstRegularTick, TRI_voc_tick_t tickMin,
                               TRI_voc_tick_t tickMax, bool outputAsArray) {
-  LOG_TOPIC(TRACE, arangodb::Logger::REPLICATION)
+  LOG_TOPIC(DEBUG, arangodb::Logger::REPLICATION)
       << "dumping log, tick range " << tickMin << " - " << tickMax;
 
   // get a custom type handler
@@ -504,6 +503,7 @@ int MMFilesDumpLogReplication(MMFilesReplicationDumpContext* dump,
   TRI_voc_cid_t lastCollectionId = 0;
   bool hasMore = true;
   bool bufferFull = false;
+  size_t numMarkers = 0;
 
   try {
     if (outputAsArray) {
@@ -622,6 +622,8 @@ int MMFilesDumpLogReplication(MMFilesReplicationDumpContext* dump,
         if (res != TRI_ERROR_NO_ERROR) {
           THROW_ARANGO_EXCEPTION(res);
         }
+    
+        ++numMarkers;
 
         if (static_cast<uint64_t>(TRI_LengthStringBuffer(dump->_buffer)) >= dump->_chunkSize) {
           // abort the iteration
@@ -670,6 +672,12 @@ int MMFilesDumpLogReplication(MMFilesReplicationDumpContext* dump,
       dump->_hasMore = false;
       dump->_bufferFull = false;
     }
+    
+    LOG_TOPIC(DEBUG, arangodb::Logger::REPLICATION)
+        << "dumped log, tick range "
+        << tickMin << " - " << tickMax << ", markers: " << numMarkers
+        << ", last found tick: " << dump->_lastFoundTick
+        << ", hasMore: " << dump->_hasMore << ", buffer full: " << dump->_bufferFull;
   }
 
   return res;
diff --git a/arangod/Pregel/PregelFeature.cpp b/arangod/Pregel/PregelFeature.cpp
index 079009346a..09f58f1d4b 100644
--- a/arangod/Pregel/PregelFeature.cpp
+++ b/arangod/Pregel/PregelFeature.cpp
@@ -227,6 +227,9 @@ void PregelFeature::start() {
 
 void PregelFeature::beginShutdown() {
   cleanupAll();
+}
+
+void PregelFeature::stop() {
   Instance = nullptr;
 }
 
diff --git a/arangod/Pregel/PregelFeature.h b/arangod/Pregel/PregelFeature.h
index 63de67d83d..4889ee13f7 100644
--- a/arangod/Pregel/PregelFeature.h
+++ b/arangod/Pregel/PregelFeature.h
@@ -52,6 +52,7 @@ class PregelFeature final : public application_features::ApplicationFeature {
 
   void start() override final;
   void beginShutdown() override final;
+  void stop() override final;
 
   uint64_t createExecutionNumber();
   void addConductor(std::unique_ptr<Conductor>&&, uint64_t executionNumber);
@@ -87,4 +88,4 @@ class PregelFeature final : public application_features::ApplicationFeature {
 }  // namespace pregel
 }  // namespace arangodb
 
-#endif
\ No newline at end of file
+#endif
diff --git a/arangod/Replication/DatabaseInitialSyncer.cpp b/arangod/Replication/DatabaseInitialSyncer.cpp
index 8a9547dd71..b53f85dc4e 100644
--- a/arangod/Replication/DatabaseInitialSyncer.cpp
+++ b/arangod/Replication/DatabaseInitialSyncer.cpp
@@ -144,6 +144,11 @@ Result DatabaseInitialSyncer::runWithInventory(bool incremental, VPackSlice dbIn
     LOG_TOPIC(DEBUG, Logger::REPLICATION)
         << "client: getting master state to dump " << vocbase().name();
     Result r;
+    
+    r = sendFlush();
+    if (r.fail()) {
+      return r;
+    }
 
     if (!_config.isChild()) {
       r = _config.master.getState(_config.connection, _config.isChild());
@@ -168,10 +173,6 @@ Result DatabaseInitialSyncer::runWithInventory(bool incremental, VPackSlice dbIn
       }
     }
 
-    r = sendFlush();
-    if (r.fail()) {
-      return r;
-    }
 
     if (!_config.isChild()) {
       // create a WAL logfile barrier that prevents WAL logfile collection
@@ -1231,8 +1232,8 @@ Result DatabaseInitialSyncer::handleCollection(VPackSlice const& parameters,
 
     std::string const& masterColl = !masterUuid.empty() ? masterUuid : itoa(masterCid);
     auto res = incremental && getSize(*col) > 0
-                   ? fetchCollectionSync(col, masterColl, _config.master.lastUncommittedLogTick)
-                   : fetchCollectionDump(col, masterColl, _config.master.lastUncommittedLogTick);
+                   ? fetchCollectionSync(col, masterColl, _config.master.lastLogTick)
+                   : fetchCollectionDump(col, masterColl, _config.master.lastLogTick);
 
     if (!res.ok()) {
       return res;
diff --git a/arangod/Replication/InitialSyncer.h b/arangod/Replication/InitialSyncer.h
index d5d05a2dd6..cf09412781 100644
--- a/arangod/Replication/InitialSyncer.h
+++ b/arangod/Replication/InitialSyncer.h
@@ -80,11 +80,6 @@ class InitialSyncer : public Syncer {
   /// @brief return the last log tick of the master at start
   TRI_voc_tick_t getLastLogTick() const { return _state.master.lastLogTick; }
 
-  /// @brief return the last uncommitted log tick of the master at start
-  TRI_voc_tick_t getLastUncommittedLogTick() const {
-    return _state.master.lastUncommittedLogTick;
-  }
-
   /// @brief return the collections that were synced
   std::map<TRI_voc_cid_t, std::string> const& getProcessedCollections() const {
     return _progress.processedCollections;
diff --git a/js/client/modules/@arangodb/test-utils.js b/js/client/modules/@arangodb/test-utils.js
index 04b9af04b5..b7bc9e52e3 100755
--- a/js/client/modules/@arangodb/test-utils.js
+++ b/js/client/modules/@arangodb/test-utils.js
@@ -645,6 +645,7 @@ function readTestResult(path, rc) {
     let msg = 'failed to read ' + jsonFN + " - " + x;
     print(RED + msg + RESET);
     return {
+      failed: 1,
       status: false,
       message: msg,
       duration: -1
@@ -686,6 +687,12 @@ function readTestResult(path, rc) {
     return rc;
   }    
 }
+
+function writeTestResult(path, data) {
+  const jsonFN = fs.join(path, 'testresult.json');
+  fs.write(jsonFN, JSON.stringify(data));
+}
+
 // //////////////////////////////////////////////////////////////////////////////
 // / @brief runs a local unittest file using arangosh
 // //////////////////////////////////////////////////////////////////////////////
@@ -888,6 +895,7 @@ exports.makePathUnix = makePathUnix;
 exports.makePathGeneric = makePathGeneric;
 exports.performTests = performTests;
 exports.readTestResult = readTestResult;
+exports.writeTestResult = writeTestResult;
 exports.filterTestcaseByOptions = filterTestcaseByOptions;
 exports.splitBuckets = splitBuckets;
 exports.doOnePathInner = doOnePathInner;
diff --git a/js/client/modules/@arangodb/testsuites/recovery.js b/js/client/modules/@arangodb/testsuites/recovery.js
index b9d98f20d6..e7062a5741 100644
--- a/js/client/modules/@arangodb/testsuites/recovery.js
+++ b/js/client/modules/@arangodb/testsuites/recovery.js
@@ -96,6 +96,7 @@ function runArangodRecovery (params) {
                     {
                       'log.foreground-tty': 'true',
                       'wal.ignore-logfile-errors': 'true',
+                      'database.ignore-datafile-errors': 'false', // intentionally false!
                       'javascript.script-parameter': 'recovery'
                     }
                    )
@@ -167,6 +168,12 @@ function recovery (options) {
       print(BLUE + "running recovery of test " + count + " - " + test + RESET);
       params.options.disableMonitor = options.disableMonitor;
       params.setup = false;
+      tu.writeTestResult(params.args['temp.path'], {
+        failed: 1,
+        status: false, 
+        message: "unable to run recovery test " + test,
+        duration: -1
+      });
       runArangodRecovery(params);
 
       results[test] = tu.readTestResult(
diff --git a/lib/Basics/process-utils.cpp b/lib/Basics/process-utils.cpp
index da8d37155f..bea4bc109e 100644
--- a/lib/Basics/process-utils.cpp
+++ b/lib/Basics/process-utils.cpp
@@ -1197,6 +1197,9 @@ static ExternalProcess* getExternalProcess(TRI_pid_t pid) {
 #ifndef _WIN32
 static bool killProcess(ExternalProcess* pid, int signal) {
   TRI_ASSERT(pid != nullptr);
+  if (signal == SIGKILL) {
+    LOG_TOPIC(WARN, arangodb::Logger::FIXME) << "sending SIGKILL signal to process: " << pid->_pid;
+  }
   if (kill(pid->_pid, signal) == 0) {
     return true;
   }
@@ -1417,11 +1420,12 @@ ExternalProcessStatus TRI_KillExternalProcess(ExternalId pid, int signal, bool i
         return status;
       }
       std::this_thread::sleep_for(std::chrono::seconds(1));
-      if (count >= 8) {
+      if (count >= 13) {
         TRI_ASSERT(external != nullptr);
+        LOG_TOPIC(WARN, arangodb::Logger::FIXME) << "about to send SIGKILL signal to process: " << external->_pid << ", status: " << (int) status._status;
         killProcess(external, SIGKILL);
       }
-      if (count > 20) {
+      if (count > 25) {
         return status;
       }
       count++;
@@ -1430,7 +1434,6 @@ ExternalProcessStatus TRI_KillExternalProcess(ExternalId pid, int signal, bool i
   return TRI_CheckExternalProcess(pid, false);
 }
 
-
 #ifdef _WIN32
 typedef LONG (NTAPI *NtSuspendProcess)(IN HANDLE ProcessHandle);
 typedef LONG (NTAPI *NtResumeProcess)(IN HANDLE ProcessHandle);
diff --git a/tests/js/client/active-failover/basic.js b/tests/js/client/active-failover/basic.js
index edf446ba6f..5b8826b690 100644
--- a/tests/js/client/active-failover/basic.js
+++ b/tests/js/client/active-failover/basic.js
@@ -89,7 +89,7 @@ function getClusterEndpoints() {
     auth: {
       bearer: jwtRoot,
     },
-    timeout: 120 
+    timeout: 300 
   });
   assertTrue(res instanceof request.Response);
   assertTrue(res.hasOwnProperty('statusCode'), JSON.stringify(res));
@@ -107,7 +107,7 @@ function getLoggerState(endpoint) {
     auth: {
       bearer: jwtRoot,
     },
-    timeout: 120 
+    timeout: 300 
   });
   assertTrue(res instanceof request.Response);
   assertTrue(res.hasOwnProperty('statusCode'));
@@ -122,7 +122,7 @@ function getApplierState(endpoint) {
     auth: {
       bearer: jwtRoot,
     },
-    timeout: 120 
+    timeout: 300 
   });
   assertTrue(res instanceof request.Response);
   assertTrue(res.hasOwnProperty('statusCode'));
@@ -166,7 +166,7 @@ function checkData(server) {
     auth: {
       bearer: jwtRoot,
     },
-    timeout: 120 
+    timeout: 300 
   });
 
   assertTrue(res instanceof request.Response);
@@ -185,7 +185,7 @@ function readAgencyValue(path) {
       bearer: jwtSuperuser,
     },
     body: JSON.stringify([[path]]),
-    timeout: 120 
+    timeout: 300 
   });
   assertTrue(res instanceof request.Response);
   assertTrue(res.hasOwnProperty('statusCode'), JSON.stringify(res));
diff --git a/tests/js/client/active-failover/readonly.js b/tests/js/client/active-failover/readonly.js
index 22c4c04bc8..d567a5a459 100644
--- a/tests/js/client/active-failover/readonly.js
+++ b/tests/js/client/active-failover/readonly.js
@@ -91,7 +91,7 @@ function getClusterEndpoints() {
     auth: {
       bearer: jwtRoot,
     },
-    timeout: 120 
+    timeout: 300 
   });
   assertTrue(res instanceof request.Response);
   assertTrue(res.hasOwnProperty('statusCode'), JSON.stringify(res));
@@ -109,7 +109,7 @@ function getLoggerState(endpoint) {
     auth: {
       bearer: jwtRoot,
     },
-    timeout: 120 
+    timeout: 300 
   });
   assertTrue(res instanceof request.Response);
   assertTrue(res.hasOwnProperty('statusCode'));
@@ -124,7 +124,7 @@ function getApplierState(endpoint) {
     auth: {
       bearer: jwtRoot,
     },
-    timeout: 120 
+    timeout: 300 
   });
   assertTrue(res instanceof request.Response);
   assertTrue(res.hasOwnProperty('statusCode'));
@@ -168,7 +168,7 @@ function checkData(server) {
     auth: {
       bearer: jwtRoot,
     },
-    timeout: 120 
+    timeout: 300 
   });
 
   assertTrue(res instanceof request.Response);
@@ -187,7 +187,7 @@ function readAgencyValue(path) {
       bearer: jwtSuperuser,
     },
     body: JSON.stringify([[path]]),
-    timeout: 120 
+    timeout: 300 
   });
   assertTrue(res instanceof request.Response);
   assertTrue(res.hasOwnProperty('statusCode'), JSON.stringify(res));
@@ -259,7 +259,7 @@ function setReadOnly(endpoint, ro) {
     },
     body: {"mode" : str},
     json: true,
-    timeout: 120 
+    timeout: 300 
   });
   print(JSON.stringify(res));
 
diff --git a/tests/js/server/recovery/corrupted-crc-datafile-mmfiles.js b/tests/js/server/recovery/corrupted-crc-datafile-mmfiles.js
new file mode 100644
index 0000000000..e1ecc8c1dd
--- /dev/null
+++ b/tests/js/server/recovery/corrupted-crc-datafile-mmfiles.js
@@ -0,0 +1,103 @@
+/* jshint globalstrict:false, strict:false, unused : false */
+/* global fail, assertEqual, assertTrue */
+
+// //////////////////////////////////////////////////////////////////////////////
+// / @brief tests for dump/reload
+// /
+// / @file
+// /
+// / DISCLAIMER
+// /
+// / Copyright 2010-2012 triagens GmbH, Cologne, Germany
+// /
+// / Licensed under the Apache License, Version 2.0 (the "License")
+// / you may not use this file except in compliance with the License.
+// / You may obtain a copy of the License at
+// /
+// /     http://www.apache.org/licenses/LICENSE-2.0
+// /
+// / Unless required by applicable law or agreed to in writing, software
+// / distributed under the License is distributed on an "AS IS" BASIS,
+// / WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// / See the License for the specific language governing permissions and
+// / limitations under the License.
+// /
+// / Copyright holder is triAGENS GmbH, Cologne, Germany
+// /
+// / @author Jan Steemann
+// / @author Copyright 2012, triAGENS GmbH, Cologne, Germany
+// //////////////////////////////////////////////////////////////////////////////
+
+var db = require('@arangodb').db;
+var internal = require('internal');
+var jsunity = require('jsunity');
+
+function runSetup () {
+  'use strict';
+  internal.debugClearFailAt();
+
+  db._drop('UnitTestsRecovery');
+  var c = db._create('UnitTestsRecovery');
+  internal.wal.flush(true, true);
+  internal.wait(1, false);
+
+  internal.debugSetFailAt('BreakHeaderMarker');
+  for (var i = 0; i < 10; ++i) {
+    c.insert({ value: i });
+  }
+  internal.wal.flush(true, true);
+  internal.wal.waitForCollector('UnitTestsRecovery');
+  
+//  internal.wait(5, false);
+  
+  internal.debugSegfault('crashing server');
+}
+
+// //////////////////////////////////////////////////////////////////////////////
+// / @brief test suite
+// //////////////////////////////////////////////////////////////////////////////
+
+function recoverySuite () {
+  'use strict';
+  jsunity.jsUnity.attachAssertions();
+
+  return {
+    setUp: function () {},
+    tearDown: function () {},
+
+    // //////////////////////////////////////////////////////////////////////////////
+    // / @brief test whether we can start the server
+    // //////////////////////////////////////////////////////////////////////////////
+
+    testCorruptedCrcDatafile: function () {
+      if (require("internal").options()["database.ignore-datafile-errors"]) {
+        // counting must succeed in all cases
+        assertTrue(db._collection('UnitTestsRecovery').count() >= 0);
+      } else {
+        // if datafile errors are not ignored, then any counting must fail here
+        try {
+          db._collection('UnitTestsRecovery').count();
+          fail();
+        } catch (err) {
+          assertEqual(internal.errors.ERROR_ARANGO_CORRUPTED_COLLECTION.code, err.errorNum);
+        }
+      }
+    }
+
+  };
+}
+
+// //////////////////////////////////////////////////////////////////////////////
+// / @brief executes the test suite
+// //////////////////////////////////////////////////////////////////////////////
+
+function main (argv) {
+  'use strict';
+  if (argv[1] === 'setup') {
+    runSetup();
+    return 0;
+  } else {
+    jsunity.run(recoverySuite);
+    return jsunity.writeDone().status ? 0 : 1;
+  }
+}
diff --git a/tests/js/server/recovery/corrupted-crc-mmfiles.js b/tests/js/server/recovery/corrupted-crc-mmfiles.js
index 89e624c172..2c3be9d7b0 100644
--- a/tests/js/server/recovery/corrupted-crc-mmfiles.js
+++ b/tests/js/server/recovery/corrupted-crc-mmfiles.js
@@ -1,5 +1,5 @@
 /* jshint globalstrict:false, strict:false, unused : false */
-/* global fail, assertEqual */
+/* global fail, assertEqual, assertTrue */
 
 // //////////////////////////////////////////////////////////////////////////////
 // / @brief tests for dump/reload
@@ -42,12 +42,13 @@ function runSetup () {
   internal.wait(1, false);
 
   internal.debugSetFailAt('BreakHeaderMarker');
+  internal.debugSetFailAt('LogfileManagerFlush');
+  internal.debugSetFailAt('CollectorThreadCollect');
   for (var i = 0; i < 10; ++i) {
     c.insert({ value: i });
   }
-  internal.wal.flush(true, true);
+  internal.wal.flush(true);
   
-  internal.debugSetFailAt('LogfileManagerFlush');
   internal.wait(5, false);
   
   internal.debugSegfault('crashing server');
@@ -70,12 +71,9 @@ function recoverySuite () {
     // //////////////////////////////////////////////////////////////////////////////
 
     testCorruptedCrc: function () {
-      try {
-        db._collection('UnitTestsRecovery').count();
-        fail();
-      } catch (err) {
-        assertEqual(internal.errors.ERROR_ARANGO_CORRUPTED_COLLECTION.code, err.errorNum);
-      }
+      // counting must succeed in all cases, but we don't know how many
+      // documents we will recover
+      assertTrue(db._collection('UnitTestsRecovery').count() >= 0);
     }
 
   };