Merge branch 'devel' of https://github.com/arangodb/arangodb into engine-api

CHANGELOG

@@ -1,7 +1,7 @@
 devel
 -----
 
-* AQL Breaking Change in Cluster:
+* AQL breaking change in cluster:
   The SHORTEST_PATH statement using edge-collection names instead
   of a graph name now requires to explicitly name the vertex-collection names 
   within the AQL query in the cluster. It can be done by adding `WITH <name>`
@@ -44,8 +44,9 @@ devel
   advantage that it is more composable, and will also honor any `LIMIT` values
   used in the AQL query.
 
-* added KB, MB, GB prefix for integer parameters, % for integer parameters
+* potential fix for shutdown hangs on OSX
 
+* added KB, MB, GB prefix for integer parameters, % for integer parameters
   with a base value
 
 * added JEMALLOC 4.5.0
@@ -229,6 +230,12 @@ v3.2.alpha1 (2017-02-05)
 
 * generated Foxx services now use swagger tags
 
+v3.1.19 (XXXX-XX-XX)
+--------------------
+
+
+* Fixed a StackOverflow issue in Traversal and ShortestPath. Occured if many (>1000) input
+  values in a row do not return any result. Fixes issue: #2445
 
 v3.1.19 (XXXX-XX-XX)
 --------------------

Documentation/Books/Manual/Deployment/README.mdpp

@@ -10,6 +10,8 @@ or using Docker containers.
 
 - [Single instance](Single.md)
 - [Cluster: DC/OS, Apache Mesos and Marathon](Mesos.md)
+- [Cluster: Generic & Docker](ArangoDBStarter.md)
+- [Advanced Topics](Advanced.md)
   - [Cluster: Test setup on a local machine](Local.md)
   - [Cluster: Starting processes on different machines](Distributed.md)
   - [Cluster: Launching an ArangoDB cluster using Docker containers](Docker.md)

Documentation/Books/Manual/SUMMARY.md

@@ -123,10 +123,12 @@
 * [Deployment](Deployment/README.md)
   * [Single instance](Deployment/Single.md)
   * [Cluster: Mesos, DC/OS](Deployment/Mesos.md)
-  * [Cluster: Local test](Deployment/Local.md)
+  * [Cluster: Generic & Docker](Deployment/ArangoDBStarter.md)
+  * [Advanced Topics](Deployment/Advanced.md)
+    * [Standalone Agency](Deployment/Agency.md)
+    * [Cluster: Local test setups](Deployment/Local.md)
     * [Cluster: Processes](Deployment/Distributed.md)
     * [Cluster: Docker](Deployment/Docker.md)
-  * [Agency](Deployment/Agency.md)
 #
 * [Administration](Administration/README.md)
   * [Web Interface](Administration/WebInterface/README.md)

arangod/Aql/ShortestPathBlock.cpp

@@ -287,6 +287,7 @@ bool ShortestPathBlock::nextPath(AqlItemBlock const* items) {
 AqlItemBlock* ShortestPathBlock::getSome(size_t, size_t atMost) {
   DEBUG_BEGIN_BLOCK();
   traceGetSomeBegin();
+  while (true) {
     if (_done) {
       traceGetSomeEnd(nullptr);
       return nullptr;
@@ -316,9 +317,7 @@ AqlItemBlock* ShortestPathBlock::getSome(size_t, size_t atMost) {
           returnBlock(cur);
           _pos = 0;
         }
-      auto r = getSome(atMost, atMost);
+        continue;
-      traceGetSomeEnd(r);
-      return r;
       }
     }
 
@@ -363,6 +362,7 @@ AqlItemBlock* ShortestPathBlock::getSome(size_t, size_t atMost) {
     clearRegisters(res.get());
     traceGetSomeEnd(res.get());
     return res.release();
+  }
 
   // cppcheck-suppress style
   DEBUG_END_BLOCK();

arangod/Aql/TraversalBlock.cpp

@@ -354,6 +354,7 @@ AqlItemBlock* TraversalBlock::getSome(size_t,  // atLeast,
                                       size_t atMost) {
   DEBUG_BEGIN_BLOCK();
   traceGetSomeBegin();
+  while (true) {
     if (_done) {
       traceGetSomeEnd(nullptr);
       return nullptr;
@@ -391,9 +392,7 @@ AqlItemBlock* TraversalBlock::getSome(size_t,  // atLeast,
         } else {
           initializePaths(cur, _pos);
         }
-      auto r = getSome(atMost, atMost);
+        continue;
-      traceGetSomeEnd(r);
-      return r;
       }
     }
 
@@ -448,6 +447,7 @@ AqlItemBlock* TraversalBlock::getSome(size_t,  // atLeast,
     clearRegisters(res.get());
     traceGetSomeEnd(res.get());
     return res.release();
+  }
 
   // cppcheck-suppress style
   DEBUG_END_BLOCK();

arangod/Cluster/HeartbeatThread.cpp

@@ -825,7 +825,10 @@ void HeartbeatThread::syncDBServerStatusQuo() {
   _backgroundJobScheduledOrRunning = true;
 
   // the JobGuard is in the operator() of HeartbeatBackgroundJob
-  _ioService->post(HeartbeatBackgroundJob(shared_from_this(), TRI_microtime()));
+  if (!isStopping() && !_ioService->stopped()) {
+    _ioService->
+      post(HeartbeatBackgroundJob(shared_from_this(), TRI_microtime()));
+  }
 }
 
 ////////////////////////////////////////////////////////////////////////////////

js/server/tests/aql/aql-graph-traverser.js

@@ -1514,6 +1514,22 @@ function complexInternaSuite () {
       assertEqual(found, amount);
     },
 
+    testTailRecursion: function () {
+      // This test is to make sure their is no
+      // inifinite callstack in getSome() API
+      let query = `
+        WITH ${vn}
+        FOR id IN 0..100000
+        FOR v IN OUTBOUND CONCAT('${vn}/foobar', id) ${en}
+        RETURN v
+      `;
+
+      let res = db._query(query);
+      assertEqual(res.count(), 0);
+      // With inifinit callstack in getSome this
+      // test will segfault
+    },
+
   };
 
 }