[mesos] branch master updated: Fixed a GetContainers crash when using XFS disk isolation.

[jpeach]

This is an automated email from the ASF dual-hosted git repository.

jpeach pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/mesos.git


The following commit(s) were added to refs/heads/master by this push:
     new 5d9b8ed  Fixed a GetContainers crash when using XFS disk isolation.
5d9b8ed is described below

commit 5d9b8ed5b7b0aac4ea09bf7c6fcf4cec60d09655
Author: James Peach <jpe...@apache.org>
AuthorDate: Fri Nov 2 08:01:44 2018 -0700

    Fixed a GetContainers crash when using XFS disk isolation.
    
    Since the XFS disk isolator didn't check that the persistent volume
    has a `DiskInfo::Source` before populating the corresponding field
    in the `ResourceStatistics` message. This caused the JSON conversion
    (triggered by operator API calls) to check fail. The fix is to simply
    check that the volume has a `DiskInfo::Source` before propagating it.
    
    Review: https://reviews.apache.org/r/69233/
---
 src/slave/containerizer/mesos/isolators/xfs/disk.cpp | 6 +++++-
 src/tests/containerizer/xfs_quota_tests.cpp          | 8 ++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/slave/containerizer/mesos/isolators/xfs/disk.cpp 
b/src/slave/containerizer/mesos/isolators/xfs/disk.cpp
index 44b7d05..646330c 100644
--- a/src/slave/containerizer/mesos/isolators/xfs/disk.cpp
+++ b/src/slave/containerizer/mesos/isolators/xfs/disk.cpp
@@ -657,7 +657,11 @@ Future<ResourceStatistics> XfsDiskIsolatorProcess::usage(
     if (pathInfo.disk.isSome()) {
       disk = statistics.add_disk_statistics();
       disk->mutable_persistence()->CopyFrom(pathInfo.disk->persistence());
-      disk->mutable_source()->CopyFrom(pathInfo.disk->source());
+
+      // Root disk volumes don't have a source.
+      if (pathInfo.disk->has_source()) {
+        disk->mutable_source()->CopyFrom(pathInfo.disk->source());
+      }
     }
 
     // We don't require XFS on MOUNT disks, but we still want the isolator
diff --git a/src/tests/containerizer/xfs_quota_tests.cpp 
b/src/tests/containerizer/xfs_quota_tests.cpp
index b2f977f..96cd40d 100644
--- a/src/tests/containerizer/xfs_quota_tests.cpp
+++ b/src/tests/containerizer/xfs_quota_tests.cpp
@@ -26,6 +26,8 @@
 #include <mesos/mesos.hpp>
 #include <mesos/resources.hpp>
 
+#include <mesos/v1/mesos.hpp>
+
 #include <process/gtest.hpp>
 #include <process/pid.hpp>
 
@@ -33,6 +35,7 @@
 #include <stout/gtest.hpp>
 #include <stout/os.hpp>
 #include <stout/path.hpp>
+#include <stout/protobuf.hpp>
 
 #include "common/values.hpp"
 
@@ -1103,6 +1106,11 @@ TEST_F(ROOT_XFS_QuotaTest, ResourceStatistics)
 
     ASSERT_FALSE(timeout.expired());
 
+    // Verify that we can round-trip the ResourceStatistics through a JSON
+    // conversion. The v1 operator API depends on this conversion.
+    EXPECT_SOME(::protobuf::parse<mesos::v1::ResourceStatistics>(
+        JSON::protobuf(usage.get())));
+
     const string volumePath =
       getPersistentVolumePath(flags.work_dir, DEFAULT_TEST_ROLE, "id1");