On Jun 30, 2012, at 17:58, Ask Bjørn Hansen wrote:

> Looks like about 250 servers "missed" the leap second.
> 
> This query counts how many servers had an offset 100ms around "one
> second off".  It was basically none yesterday, and 253 in the first
> hour after the leap.


Compared to the last leap second it looks like more servers are sorting it out 
in a hurry.  In the first hour about 8% had it wrong, but the number is halved 
each hour.  The updated numbers are below.

At my work some Java processes (for Elastic Search) crashed (hung/used all the 
CPU/some variation of that) just after the leap second.  Reading 
serverfault.com it seems like some Linux kernels have been crashing, too.

mysql> select date(ts),hour(ts),count(distinct(server_id)) from log_scores 
where offset > 0.9 and offset < 1.1 and ts > '2012-06-30 21:00:00'  and 
monitor_id is null group by 1,2;
+------------+----------+----------------------------+
| date(ts)   | hour(ts) | count(distinct(server_id)) |
+------------+----------+----------------------------+
| 2012-06-30 |       23 |                          1 |
| 2012-07-01 |        0 |                        253 |
| 2012-07-01 |        1 |                        104 |
| 2012-07-01 |        2 |                         46 |
| 2012-07-01 |        3 |                         27 |
+------------+----------+----------------------------+
5 rows in set (0.60 sec)


Ask
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