From d41963c54697a3969a9abd1c96dfefc919faea8e Mon Sep 17 00:00:00 2001
From: Andrey K <32765888+akharitonov@users.noreply.github.com>
Date: Sat, 24 Aug 2019 18:33:20 -0700
Subject: [PATCH] Fixed: missing brackets when appending proc info on
 OutOfMemory (#5530)

* Fixed: missing brackets when appending proc info on OutOfMemory

proc_stats.append was missing the set of brackets when adding a tuple to the list, which resulted in runtime error instead of correct Out of Memory message display.

* Update memory_monitor.py
---
 python/ray/memory_monitor.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/python/ray/memory_monitor.py b/python/ray/memory_monitor.py
index d74bb58b1..8feca07f5 100644
--- a/python/ray/memory_monitor.py
+++ b/python/ray/memory_monitor.py
@@ -43,7 +43,8 @@ class RayOutOfMemoryError(Exception):
         proc_stats = []
         for pid in pids:
             proc = psutil.Process(pid)
-            proc_stats.append(get_rss(proc.memory_info()), pid, proc.cmdline())
+            proc_stats.append((get_rss(proc.memory_info()), pid,
+                               proc.cmdline()))
         proc_str = "PID\tMEM\tCOMMAND"
         for rss, pid, cmdline in sorted(proc_stats, reverse=True)[:10]:
             proc_str += "\n{}\t{}GiB\t{}".format(