RHEL 6.2 CPU 24 memory 128G 8 Node 1. Keep more Event Logs for dc_tuple_mover_events.
select SET_DATA_COLLECTOR_POLICY(‘TupleMoverEvents‘, ‘1000‘, ‘100000‘); Default: 1000kb kept in memory, then kb kept on disk.
2. Keep more Event Logs for dc_errors.
select SET_DATA_COLLECTOR_POLICY(‘Errors‘, ‘1000‘, ‘100000‘); Default: 1000kb kept in memory, then kb kept on disk.
3. Parameter maxclientsessions: for concurrent queries and data loading jobs
select set_config_parameter(‘MaxClientSessions‘, 50
: zabbix [queue] zabbix [queue, 5 m] zabbix [queue, 10 m] 3. update percent: used to measure the update of item values. If percent is low, it indicates that the data has delay or some agent data has exceptions. 1) The entire cluster
select a.aa/b.bb from
(select count(*)
as
aa from items
where lastclock > UNIX_TIMESTAMP()-
1800
and delay
900
and hostid
in
(select hostid from hosts where status=
0
)
and status =
0
) a,
(select count(*)
as
bb f
($ html = null ){Ob_start ();/*ALL OF YOUR CODE GO HERERender your page, db query, WHATEVER*/
// GET HTML WEBPAGE$ Html = ob_get_contents ();// Save to Cache 30 minutes_ C ("files")-> set ($ keyword_webpage, $ html, 1800 );}
Echo $ html;
Pendant cache
The code is as follows:
// Use Files Cache for Whole Page/Widget$ Cache = phpFastCache ("files ");
$ Html = $ cache-> widget_1;
If ($ html = null ){$ Html = Render Your Page | Widget | "Hello World ";
This article uses a specific example of nodejs to compare and analyze the current situation of our social security cooperation is not suitable, mainly for a small application of nodejs, of course, you can also change to other languages, programmers, let's calculate it. According to an ordinary programmer, 8000 of the monthly income is 1800 of the social security fund, and I will be 30 years old after I retire at the age of 65. This account is compared
Modules
Site
Software Amount
t3-UF TongStandard Edition
General ledger (including cashier, tax Steward 1 site)Cashier (Cash Bank/Current management/project management)
Single User
8,800
3 site
12,800
6 site
16,800
10 site
22,800
10 site above each additional 1 sites in the software amount added 1800 yuan;
Report
Single User
play for six months of online games.My student time is so over, said above so much, actually want to say the meaning is one: I and a lot of people as unworthy, even worse. But none of this matters, as long as you start from now, your life can begin to change. Xian Upper half period (2006-2007 years)I think in college time did a good job is to test the level six, entrusted with its blessing, I found the first job. This company is an international tourist, facing the overseas customers, all the
['http _ host']. $ _ SERVER ['request _ URI ']. $ _ SERVER ['query _ string']);$ Html = _ c ("files")-> get ($ keyword_webpage );
If ($ html = null ){Ob_start ();/*ALL OF YOUR CODE GO HERERender your page, db query, WHATEVER*/
// GET HTML WEBPAGE$ Html = ob_get_contents ();// Save to Cache 30 minutes_ C ("files")-> set ($ keyword_webpage, $ html, 1800 );}
Echo $ html;
Pendant cache
The code is as follows:
// Use Files Cache for Whole Page/Widget$ C
Project development almost, when deployed to the build environment, one of the features of a synchronized fan reported a mistake.
There are no problems with just a few dozens of fans, but when testing a fan with 5000 of the public number, the following error occurs.
Well, it's been a long time, so modify the server configuration
Proxy_connect_timeout 1800;Proxy_send_timeout 1800;Proxy_read_timeout
($ html = null ){Ob_start ();/*ALL OF YOUR CODE GO HERERender your page, db query, WHATEVER*/
// GET HTML WEBPAGE$ Html = ob_get_contents ();// Save to Cache 30 minutes_ C ("files")-> set ($ keyword_webpage, $ html, 1800 );}
Echo $ html;
Pendant cache
The code is as follows:
// Use Files Cache for Whole Page/Widget$ Cache = phpFastCache ("files ");
$ Html = $ cache-> widget_1;
If ($ html = null ){$ Html = Render Your Page | Widget | "Hello World ";/
article, we used the SUM function to calculate the total sales of all stores. what should we do if we want to calculate the total sales of each store? To achieve this goal, we need to do two things: first, we need to query two fields: store name and sales. then, we use the SQL GROUP BY command to GROUP sales BY different stores and calculate the total sales of different stores. The syntax format of the group by command is:
SELECT "column_name1", SUM ("column_name2 ")
FROM "table_name"
Group
This article through a concrete example of Nodejs to compare and analyze at this stage we do not fit the social security,The main is a small application of nodejs, of course, we can also change to other languages, program apes, to calculate it.8000 of a regular programmer's monthly income is 1800 of the social Security benefits, and is deferred to 65 years of retirement. The code is as follows: Fuckshebao:function (req, res, next) { //monthly
configurationBackground_comparison= "Yes" creates a background comparison before and after the snapshot is createdNumber_cleanup= "yes" to run daily number cleanupNumber_min_age= "1800" pre-cleanup snapshot minimum lifetime (s)number_limit= "50" maximum number of snapshotsTimeline_create= "No" creates a snapshot per hourTimeline_cleanup= "yes" to clean up every hour after a certain timeTimeline_min_age= "1800
/Widget
// Keyword = Webpage_URL$ Keyword_webpage = md5 ($ _ SERVER ['HTTP _ host']. $ _ SERVER ['request _ URI ']. $ _ SERVER ['query _ string']);$ Html = _ c ("files")-> get ($ keyword_webpage );
If ($ html = null ){Ob_start ();/*ALL OF YOUR CODE GO HERERender your page, db query, WHATEVER*/
// GET HTML WEBPAGE$ Html = ob_get_contents ();// Save to Cache 30 minutes_ C ("files")-> set ($ keyword_webpage, $ html, 1800 );}
Echo $ html;
Pendant Cache
T
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.