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From Hidekazu <hi_de...@yahoo.co.jp>
Subject Re: AcativeMQ becomes slow suddenly in 60 minutes after starting a performance test
Date Fri, 07 Jul 2017 10:07:27 GMT
Dear Tim

Thanks for helping me a lot.
Let me answer your questions.

> Were your IoT processes publishing to queues or topics?

Topics

> To a single one or to one per client?

To a single ActiveMQ broker.

> Was anything consuming the messages?

Yes, our subscriber consume the topics.

> Were the messages persistent or non-persistent? 

Yes, persistent.

> (If persistent, can you prove it by showing a reasonable 
> rate of growth on the KahaDB data files?) 

The performance test was conducted on June 23th and I experienced the slow
ActiveMQ issue on that day.

This is the current kahadb data file directory list. (not June 23th)
I didn't log the growth rate of Kahadb data during the performance test.
I'm sorry..

[emsuser@ematapl01 kahadb]$ ls -lh
合計 1.5G
-rw-r--r-- 1 root root  32M  5月 30 14:47 2017 db-1184.log
-rw-r--r-- 1 root root  32M  5月 30 14:57 2017 db-1185.log
-rw-r--r-- 1 root root  32M  5月 30 15:29 2017 db-1194.log
-rw-r--r-- 1 root root  32M  5月 30 16:14 2017 db-1196.log
-rw-r--r-- 1 root root  32M  6月 14 21:23 2017 db-3071.log
-rw-r--r-- 1 root root  32M  6月 15 17:25 2017 db-3204.log
-rw-r--r-- 1 root root  32M  6月 15 19:13 2017 db-3223.log
-rw-r--r-- 1 root root  32M  6月 16 00:02 2017 db-3227.log
-rw-r--r-- 1 root root  32M  6月 17 00:01 2017 db-3340.log
-rw-r--r-- 1 root root  32M  6月 17 05:57 2017 db-3397.log
-rw-r--r-- 1 root root  32M  6月 23 14:18 2017 db-4138.log
-rw-r--r-- 1 root root  32M  7月  4 08:59 2017 db-4704.log
-rw-r--r-- 1 root root  31M  7月  3 12:15 2017 db-4705.log
-rw-r--r-- 1 root root  24M  7月  3 12:20 2017 db-4706.log
-rw-r--r-- 1 root root  16M  7月  3 12:26 2017 db-4707.log
-rw-r--r-- 1 root root  23M  7月  3 12:31 2017 db-4708.log
-rw-r--r-- 1 root root  16M  7月  3 12:37 2017 db-4709.log
-rw-r--r-- 1 root root 8.4M  7月  3 12:42 2017 db-4710.log
-rw-r--r-- 1 root root  23M  7月  3 12:48 2017 db-4711.log
-rw-r--r-- 1 root root  21M  7月  3 12:53 2017 db-4712.log
-rw-r--r-- 1 root root  13M  7月  3 12:59 2017 db-4713.log
-rw-r--r-- 1 root root  15M  7月  3 13:04 2017 db-4714.log
-rw-r--r-- 1 root root  20M  7月  3 13:10 2017 db-4715.log
-rw-r--r-- 1 root root  13M  7月  3 13:16 2017 db-4716.log
-rw-r--r-- 1 root root  12M  7月  3 13:21 2017 db-4717.log
-rw-r--r-- 1 root root  12M  7月  3 13:27 2017 db-4718.log
-rw-r--r-- 1 root root  12M  7月  3 13:32 2017 db-4719.log
-rw-r--r-- 1 root root  18M  7月  3 13:38 2017 db-4720.log
-rw-r--r-- 1 root root  13M  7月  3 13:43 2017 db-4721.log
-rw-r--r-- 1 root root  12M  7月  3 13:49 2017 db-4722.log
-rw-r--r-- 1 root root  15M  7月  3 13:54 2017 db-4723.log
-rw-r--r-- 1 root root  16M  7月  3 14:00 2017 db-4724.log
-rw-r--r-- 1 root root  14M  7月  3 14:05 2017 db-4725.log
-rw-r--r-- 1 root root  15M  7月  3 14:11 2017 db-4726.log
-rw-r--r-- 1 root root  23M  7月  3 14:16 2017 db-4727.log
-rw-r--r-- 1 root root  21M  7月  3 14:22 2017 db-4728.log
-rw-r--r-- 1 root root 923K  7月  4 09:04 2017 db-4730.log
-rw-r--r-- 1 root root  32M  7月  7 19:07 2017 db-4732.log
-rw-r--r-- 1 root root 553M  7月  7 19:07 2017 db.data
-rw-r--r-- 1 root root  92M  3月 16 19:15 2017 db.data.bk
-rw-r--r-- 1 root root  23M  7月  7 19:07 2017 db.redo
-rw-r--r-- 1 root root    8  7月  3 12:09 2017 lock



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