?????????????????

???????????

????? ??????????????(????????????????????????????????????????????)

????? ?????????????????????????

????????????????-?????????(??????????????????)-?????????????????(????????)-???м?????(??????????????web????????)-????????(SQL????????????????????????)

???????????????????????????ж????????????????????????????????????????Щ??????????????????????????????????(?????????????????)?￡?????????????????????

????? ???????? ????Ч

??????????????????

?????1 ??????????й????е??????????

?????2 ?????????????????????????

?????.???????????

?????????????

????1 ?Error: Failed to connect to server "10.10.10.30:8080": [10060] Connection

?????Error: timed out Error: Server "10.10.10.30" has shut down the connection prematurely

??????????

?????A????÷????????

????(С????????????????????????????????????)

?????B????÷????????

????(??÷??????????????)

?????????????????????Weblogic??÷?????????????????????????д???????????п?????Weblogic?е?server????AcceptBacklog???????ù???????????????connection refused???????????????????????25%

?????C????????????

????(1??????÷????????????????С?? 2???????????????????(???????????й?))

????2 Error: Page download timeout (120 seconds) has expired

??????????????????????????

?????A????÷??????????????·??????????

?????B????????????

?????C???????????????????????

??????.?????????????

????1.???????????

?????????????????(????????????繃???????????(????????))??????????????????

??????????????У?????????????3?????????????????????????????shutdown?????????????????????￡?????????????????????????????????????????????????г??????????????????????

??????????????????????????????????????????????????????????????????????????????OK????????????????????????????????????????????????????????

????2.????????????

????? ????????????????????????????????????????????????????á?????????????????????????????????????????????????

????? ???????????????????????????????????????????????????Щ????????????????????????????????й??

????? ????????????????????????????????????????????????????????????????????????????????????????????????á?????????????????????????????????????

????3.???????????????

??????棺

????1 UNIX???????????????????????(Paging rate)????????????????????????????????檔???????????????????????????????????????????????

????2 Windows???????У????ProcessPrivate Bytes????????ProcessWorking Set???????????????????????????MemoryAvailable bytes??????????????????????????????й???

?????????????????????????????:

????????????(high pageout rate);

???????????????;

?????????????д????????????;

?????????????CPU??????;

??????治??????(out of memory errors)

????????????

????1 UNIX??????(Windows?????????)?????CPU?????(CPU utilization)????????????????95%???????????CPU?????????????????????????????????????????????????????SQL Server???????????????80-85%

?????????????Χ??60%??70%??

????2 Windows???????У????SystemProcessor Queue Length????2????????????????(Processor Time)????????????????????????

????CPU??????????????????????:

????????????????(slow response time)

????CPU??????????(zero percent idle CPU)

???????????????CPU???(high percent user CPU)

??????????????CPU???(high percent system CPU)

???????????к???????н??????(large run queue size sustained over time)

????????I/O??

????1 UNIX??????(Windows?????????)?????????????(Disk rate)??????ò??????????????I/O??????????????????????????

????2 Windows???????У???? Disk Time??Avg.Disk Queue Length?????????Page Reads/sec????????????????????????????????

????I/O?????????????????????? :
??????????????????(high disk utilization)
??????????????????(large disk queue length)