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<div class="moz-cite-prefix">Hi, Hugo, and all list,<br>
I'm also facing the issue about the performance degradation of
swift that Hugo had once mentioned in his Message #14935.<br>
<br>
I'm in tesing with 50KB-size_object putting, and after several
turn of test the throughout dropped dramatically.<br>
<br>
Have you found the solution or the tunning method?<br>
<br>
Best Regards,<br>
Jonathan Lu<br>
<br>
On 2013/6/3 20:01, Kuo Hugo wrote:<br>
</div>
<blockquote
cite="mid:CA++_uhs60ek3g-n5jn4vjKHcbu6Og5oGD-o2aDgpWhSkBbjkGw@mail.gmail.com"
type="cite">
<div dir="ltr">Hi Klaus,
<div><br>
</div>
<div style="">How's the disk space usage now?</div>
<div style=""><br>
</div>
<div style="">Cheers</div>
</div>
<div class="gmail_extra"><br clear="all">
<div>
<div dir="ltr">
<div>+Hugo Kuo+</div>
<div><a moz-do-not-send="true"
href="mailto:hugo@swiftstack.com" target="_blank">hugo@swiftstack.com</a><br>
</div>
<div><a moz-do-not-send="true"
href="mailto:tonytkdk@gmail.com" target="_blank">tonytkdk@gmail.com<br>
</a></div>
<div>+886 935004793<br>
</div>
</div>
</div>
<br>
<br>
<div class="gmail_quote">2013/5/31 Klaus Schürmann <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:klaus.schuermann@mediabeam.com"
target="_blank">klaus.schuermann@mediabeam.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
<br>
when I test my new swift cluster I get a strange behavior
with GET and PUT requests.<br>
Most time it is really fast. But sometimes it takes a long
time to get the data.<br>
Here is an example with the same request which took one time
17 seconds:<br>
<br>
May 31 10:33:08 swift-proxy1 proxy-logging 10.4.2.99
10.4.2.99 31/May/2013/08/33/08 GET
/v1/AUTH_provider1/129450/829188397.31 HTTP/1.0 200 -
Wget/1.12%20%28linux-gnu%29
provider1%2CAUTH_tke6408efec4b2439091fb6f4e75911602 - 283354
- tx2804381fef91455dabf6c9fd0edf4206 - 0.0546 -<br>
May 31 10:33:08 swift-proxy1 proxy-logging 10.4.2.99
10.4.2.99 31/May/2013/08/33/08 GET
/v1/AUTH_provider1/129450/829188397.31 HTTP/1.0 200 -
Wget/1.12%20%28linux-gnu%29
provider1%2CAUTH_tke6408efec4b2439091fb6f4e75911602 - 283354
- tx90025e3259d74b9faa8f17efaf85b104 - 0.0516 -<br>
May 31 10:33:08 swift-proxy1 proxy-logging 10.4.2.99
10.4.2.99 31/May/2013/08/33/08 GET
/v1/AUTH_provider1/129450/829188397.31 HTTP/1.0 200 -
Wget/1.12%20%28linux-gnu%29
provider1%2CAUTH_tke6408efec4b2439091fb6f4e75911602 - 283354
- tx942d79f78ee345138df6cd87bac0f860 - 0.0942 -<br>
May 31 10:33:08 swift-proxy1 proxy-logging 10.4.2.99
10.4.2.99 31/May/2013/08/33/08 GET
/v1/AUTH_provider1/129450/829188397.31 HTTP/1.0 200 -
Wget/1.12%20%28linux-gnu%29
provider1%2CAUTH_tke6408efec4b2439091fb6f4e75911602 - 283354
- tx73f053e15ed345caad38a6191fe7f196 - 0.0584 -<br>
May 31 10:33:08 swift-proxy1 proxy-logging 10.4.2.99
10.4.2.99 31/May/2013/08/33/08 GET
/v1/AUTH_provider1/129450/829188397.31 HTTP/1.0 200 -
Wget/1.12%20%28linux-gnu%29
provider1%2CAUTH_tke6408efec4b2439091fb6f4e75911602 - 283354
- txd4a3a4bf3f384936a0bc14dbffddd275 - 0.1020 -<br>
May 31 10:33:26 swift-proxy1 proxy-logging 10.4.2.99
10.4.2.99 31/May/2013/08/33/26 GET
/v1/AUTH_provider1/129450/829188397.31 HTTP/1.0 200 -
Wget/1.12%20%28linux-gnu%29
provider1%2CAUTH_tke6408efec4b2439091fb6f4e75911602 - 283354
- txd8c6b34b8e41460bb2c5f3f4b6def0ef - 17.7330 -
<<<<<<<<<<<<<<<br>
May 31 10:33:26 swift-proxy1 proxy-logging 10.4.2.99
10.4.2.99 31/May/2013/08/33/26 GET
/v1/AUTH_provider1/129450/829188397.31 HTTP/1.0 200 -
Wget/1.12%20%28linux-gnu%29
provider1%2CAUTH_tke6408efec4b2439091fb6f4e75911602 - 283354
- tx21aaa822f8294d9592fe04b3de27c98e - 0.0226 -<br>
May 31 10:33:26 swift-proxy1 proxy-logging 10.4.2.99
10.4.2.99 31/May/2013/08/33/26 GET
/v1/AUTH_provider1/129450/829188397.31 HTTP/1.0 200 -
Wget/1.12%20%28linux-gnu%29
provider1%2CAUTH_tke6408efec4b2439091fb6f4e75911602 - 283354
- txcabe6adf73f740efb2b82d479a1e6b20 - 0.0385 -<br>
May 31 10:33:26 swift-proxy1 proxy-logging 10.4.2.99
10.4.2.99 31/May/2013/08/33/26 GET
/v1/AUTH_provider1/129450/829188397.31 HTTP/1.0 200 -
Wget/1.12%20%28linux-gnu%29
provider1%2CAUTH_tke6408efec4b2439091fb6f4e75911602 - 283354
- txc1247a1bb6c04bd3b496b3b986373170 - 0.0247 -<br>
May 31 10:33:26 swift-proxy1 proxy-logging 10.4.2.99
10.4.2.99 31/May/2013/08/33/26 GET
/v1/AUTH_provider1/129450/829188397.31 HTTP/1.0 200 -
Wget/1.12%20%28linux-gnu%29
provider1%2CAUTH_tke6408efec4b2439091fb6f4e75911602 - 283354
- txdf295a88e513443393992f37785f8aed - 0.0144 -<br>
May 31 10:33:26 swift-proxy1 proxy-logging 10.4.2.99
10.4.2.99 31/May/2013/08/33/26 GET
/v1/AUTH_provider1/129450/829188397.31 HTTP/1.0 200 -
Wget/1.12%20%28linux-gnu%29
provider1%2CAUTH_tke6408efec4b2439091fb6f4e75911602 - 283354
- tx62bb33e8c20d43b7a4c3512232de6fe4 - 0.0125 -<br>
<br>
Alle requests on the storage nodes are below 0.01 sec.<br>
<br>
The tested cluster contain one proxy (DELL R420, 16 G RAM, 2
CPU) and 5 storage-nodes (DELL R720xd, 16 G RAM 2 CPU, 2
HDD). The proxy-server configuration:<br>
<br>
[DEFAULT]<br>
log_name = proxy-server<br>
log_facility = LOG_LOCAL1<br>
log_level = INFO<br>
log_address = /dev/log<br>
bind_port = 80<br>
user = swift<br>
workers = 32<br>
log_statsd_host = 10.4.100.10<br>
log_statsd_port = 8125<br>
log_statsd_default_sample_rate = 1<br>
log_statsd_metric_prefix = Proxy01<br>
#set log_level = DEBUG<br>
<br>
[pipeline:main]<br>
pipeline = healthcheck cache proxy-logging tempauth
proxy-server<br>
<br>
[app:proxy-server]<br>
use = egg:swift#proxy<br>
allow_account_management = true<br>
account_autocreate = true<br>
<br>
[filter:tempauth]<br>
use = egg:swift#tempauth<br>
user_provider1_xxxx = xxxx .xxx <a moz-do-not-send="true"
href="http://10.4.100.1/v1/AUTH_provider1" target="_blank">http://10.4.100.1/v1/AUTH_provider1</a><br>
log_name = tempauth<br>
log_facility = LOG_LOCAL2<br>
log_level = INFO<br>
log_address = /dev/log<br>
<br>
[filter:cache]<br>
use = egg:swift#memcache<br>
memcache_servers = <a moz-do-not-send="true"
href="http://10.12.0.2:11211" target="_blank">10.12.0.2:11211</a>,<a
moz-do-not-send="true" href="http://10.12.0.3:11211"
target="_blank">10.12.0.3:11211</a><br>
set log_name = cache<br>
<br>
[filter:catch_errors]<br>
use = egg:swift#catch_errors<br>
<br>
[filter:healthcheck]<br>
use = egg:swift#healthcheck<br>
<br>
[filter:proxy-logging]<br>
use = egg:swift#proxy_logging<br>
access_log_name = proxy-logging<br>
access_log_facility = LOG_LOCAL3<br>
access_log_level = DEBUG<br>
access_log_address = /dev/log<br>
<br>
<br>
Can someone explain such behavior?<br>
<br>
Thanks<br>
Klaus<br>
<br>
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