When an export is freshly mounted, /proc/self/mountstats displays age = 0.
This causes nfs-iostat.py to divide by zero throwing an error. When we
have age = 0, other stats are greater than 0, so we'll set age = 1 and
print the relevant stats.
Signed-off-by: Kevin Constantine <kevin.constantine@xxxxxxxxxxxxxxxxxxx>
---
tools/nfs-iostat/nfs-iostat.py | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/tools/nfs-iostat/nfs-iostat.py b/tools/nfs-iostat/nfs-iostat.py
index 2d0b143..1207674 100644
--- a/tools/nfs-iostat/nfs-iostat.py
+++ b/tools/nfs-iostat/nfs-iostat.py
@@ -366,6 +366,12 @@ class DeviceData:
sends = float(self.__rpc_data['rpcsends'])
if sample_time == 0:
sample_time = float(self.__nfs_data['age'])
+ # sample_time could still be zero if the export was just mounted.
+ # Set it to 1 to avoid divide by zero errors in this case since we'll
+ # likely still have relevant mount statistics to show.
+ #
+ if sample_time == 0:
+ sample_time = 1;
if sends != 0:
backlog = (float(self.__rpc_data['backlogutil']) / sends) / sample_time
else:
--
1.6.5.2
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