From: Xiubo Li <xiubli@redhat.com>
Date: Fri, 7 Aug 2020 07:45:52 +0000 (+0800)
Subject: msg: throw a system error when center.init fails
X-Git-Tag: v16.1.0~1409^2~1
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=633805060a1002c86570fe50d099e0c1e223e2d7;p=ceph.git

msg: throw a system error when center.init fails

In the libcephfs test case, it will run handreds of threads in
parallel, it will possibly reach the open files limit, but there
won't useful logs about what has happened.

This will just throw a system error, just like:

C++ exception with description "(24) Too many open files" thrown in the test body.

Fixes: https://tracker.ceph.com/issues/43039
Signed-off-by: Xiubo Li <xiubli@redhat.com>
---

diff --git a/src/msg/async/Stack.cc b/src/msg/async/Stack.cc
index 74d07829be9..6885fd4f9db 100644
--- a/src/msg/async/Stack.cc
+++ b/src/msg/async/Stack.cc
@@ -118,7 +118,9 @@ NetworkStack::NetworkStack(CephContext *c, const std:: string &t): type(t), star
 
   for (unsigned worker_id = 0; worker_id < num_workers; ++worker_id) {
     Worker *w = create_worker(cct, type, worker_id);
-    w->center.init(InitEventNumber, worker_id, type);
+    int ret = w->center.init(InitEventNumber, worker_id, type);
+    if (ret)
+      throw std::system_error(-ret, std::generic_category());
     workers.push_back(w);
   }
 }