[3/4] mesos git commit: Detached `virtualLatestPath` when recovering the executor.

[qi...@apache.org]

Detached `virtualLatestPath` when recovering the executor.

Previously we miss to detach `/frameworks/FID/executors/EID/runs/latest`
when we find the latest run of the executor was completed in the method
`Framework::recoverExecutor`, that is a leak.

Review: https://reviews.apache.org/r/65167


Project: http://git-wip-us.apache.org/repos/asf/mesos/repo
Commit: http://git-wip-us.apache.org/repos/asf/mesos/commit/f25c9b3f
Tree: http://git-wip-us.apache.org/repos/asf/mesos/tree/f25c9b3f
Diff: http://git-wip-us.apache.org/repos/asf/mesos/diff/f25c9b3f

Branch: refs/heads/1.5.x
Commit: f25c9b3f77df9f4edc250e18be7392391d19d024
Parents: f2466a7
Author: Qian Zhang <zh...@gmail.com>
Authored: Mon Jan 15 16:40:00 2018 +0800
Committer: Qian Zhang <zh...@gmail.com>
Committed: Wed Jan 17 12:08:49 2018 +0800

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 src/slave/slave.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/mesos/blob/f25c9b3f/src/slave/slave.cpp
----------------------------------------------------------------------
diff --git a/src/slave/slave.cpp b/src/slave/slave.cpp
index 4a37041..956f79d 100644
--- a/src/slave/slave.cpp
+++ b/src/slave/slave.cpp
@@ -8640,7 +8640,10 @@ void Framework::recoverExecutor(
     // GC the top level executor work directory.
     slave->garbageCollect(paths::getExecutorPath(
         slave->flags.work_dir, slave->info.id(), id(), state.id))
-        .onAny(defer(slave, &Slave::detachFile, latestPath));
+        .onAny(defer(slave->self(), [=](const Future<Nothing>& future) {
+          slave->detachFile(latestPath);
+          slave->detachFile(virtualLatestPath);
+        }));
 
     // GC the top level executor meta directory.
     slave->garbageCollect(paths::getExecutorPath(