설치및환경설정 JEUS Thread State Notify 설정

Size: px

Start display at page:

Download "설치및환경설정 JEUS Thread State Notify 설정"

시원 선
5 years ago
Views:

1 JEUS Thread State Notify 설정

2 목차 1. thread-state-notify 설정 시나리오 #1. max-thread-active-time : 10초 시나리오 #2. max-thread-active-time : 10초, thread-interrupt-execution : true 시나리오 #3. max-thread-active-time : 10초, restart-threshold-ratio : JEUS 설정 JEUS 5.x 설정 JEUS 6.x 설정 테스트 테스트환경 테스트 Thread block 테스트 Blocked Thread 삭제 일반 JSP Blocked Thread 삭제 Socket 통신중인 jsp 수행 Container restart 테스트 JEUS 5.x

3 Thread State Notify 설정가이드 1. thread-state-notify 설정 thread-state-notify 설정은 Thread 의최대수행시간을정함으로써 Thread Hang 으로인한서비스의중단을방지하 는것을목적으로합니다. Thread 의수행시간을주기적으로체크하여최대수행시간을넘기는 Thread 에한하여강제로 Block 시키고삭제할 수있으며 Blocked Thread 의수가일정비율을넘기면 Container restart 를수행할수있습니다. 주의할점은 Thread 의상태를모니터링하는주기는 WEBMain.xml 의 monitoring 태그에서정한다는것입니다. monitoring 태그를설정하지않고 thread-state-notify 설정만했을경우 Thread 의수행시간을 manager 가체크하지 않기때문에원하는결과를얻을수없습니다. 해당설정의자세한설명은아래에서시나리오 #1, #2, #3 으로나누어설명하겠습니다. 1.1 시나리오 #1. max-thread-active-time : 10 초 Thread 의최대수행시간 (max-thread-active-time) 을 10 초로설정하고 JSP 를수행하였을경우를그림으로표시했습니 다. 그림에서보면 JSP 가수행후 Running 상태가되었다가 10 초가경과하면서 Blocked 상태가되는것을확인할 수있습니다. 이때 Blocked 된 Thread 를대신할신규 Thread 가생성되는것도확인할수있습니다. 이러한수행이계속되면서 10 초이상수행되는 Thread 들은 Blocked 상태가되고신규 Thread 를생성함으로써가용 할수있는 Thread 의개수가일정하게유지됩니다. 3

1.2 시나리오 #2. max-thread-active-time : 10 초, thread-interrupt-execution : true Thread 의최대수행시간 (max-thread-active-time) 을 10 초, thread-interrupt-execution 을 true 로설정하고 JSP 를수행하 였을경우를표시했습니다.

4 1.2 시나리오 #2. max-thread-active-time : 10 초, thread-interrupt-execution : true Thread 의최대수행시간 (max-thread-active-time) 을 10 초, thread-interrupt-execution 을 true 로설정하고 JSP 를수행하 였을경우를표시했습니다. 그림에서보면 JSP 가수행후 Running 상태가되었다가 10 초가경과하면서 Blocked 상태가되는것을확인할수있 습니다. 이때일반적인 JSP의경우와소켓통신중인 JSP 두가지경우로나뉘는데일반적인 JSP를수행하는경우는해당 Thread 가 Blocked 되고 uri가 unknown 으로변한후바로 Thread 가삭제됩니다. 하지만소켓통신중인 JSP를수행하는경우는해당 Thread 가 Blocked 되지만 uri는수행되는 AP가계속표시되며 Thread 의삭제가이루어지지않습니다. 이러한차이를보이는이유는 thread-interrupt-execution 설정이 true 인경우 Blocked 상태가된 Thread 에 manager 가 interrupt 신호를보내 Thread 의삭제를시도하게되는데소켓통신의경우 interrupt 신호로인한 Exception 이쉽 게발생하지않아삭제를수행하지못하기때문입니다. < 주의사항 > 소켓통신중 JSP의경우 Blocked 상태에서삭제가이루어지지않기때문에 Thread 를계속물고있습니다. 이때 WebtoB 와의연결도계속물려있기때문에 WebtoB 와 JEUS 사이의 Thread 개수가같을경우신규생성된 Thread 는 reconnecting 상태가되므로 WebtoB 의 Thread 개수를더많이주어야합니다. 4

1.3 시나리오 #3. max-thread-active-time : 10 초, restart-threshold-ratio : 0.5 Thread 의최대수행시간 (max-thread-active-time) 을 10 초, restart-threshold-ratio 을 0.5 로설정하고 JSP 를수행하였을 경우를표시했습니다.

5 1.3 시나리오 #3. max-thread-active-time : 10 초, restart-threshold-ratio : 0.5 Thread 의최대수행시간 (max-thread-active-time) 을 10 초, restart-threshold-ratio 을 0.5 로설정하고 JSP 를수행하였을 경우를표시했습니다. 그림에서보면 2 개의 JSP 가수행후 Running 상태가되었다가 10 초가경과하면서 Container 가 restart 하는것을확 인할수있습니다. restart-threshold-ratio 값을전체 Thread 를 50% 로정하였기때문에 4 개의 Thread 중 2 개의 Thread 가수행하다 Blocked 로빠지는즉시 Container Restart 가이루어지는것입니다. 이비율은 WEBMain.xml 에설정한 Thread 의 max값을기준으로하기때문에 Blocked 상태의 Thread 로인해생기는신규 Thread 와는별개로산정됩니다. 즉 min값이 4개이고 max가 10개일경우 restart 비율을 50% 로설정하면기준값이 Thread 5개가되며중간에신규 Thread 가생기더라도 Blocked 된 Thread 가 5개가되는시점에 Container restart 가이루어집니다 5

6 2. JEUS 설정 2.1 JEUS 5.x 설정 thread-state-notify 서브태그 태그명 max-thread-active-time (ms) notify-threshold (int) restart-threshold (int) notify-subject restart-subject 설명 Thread 가수행될수있는최대시간값 Worker thread 가클라이언트요청을서비스할때부터측정되며초과할경우해당 Thread 를강제로 Block 시킴 Block 된 Thread 의최대개수를설정할수있으며이를초과하면 smtp-handler 에설정된 주소로해당내용을통보 Block 된 Thread 의최대개수를설정할수있으며이를초과하면해당 Container Restart 수행 notify-threadhold 조건초과에대한통보시사용되는 Subject Container Restart 수행에대한 통보시사용되는 Subject monitoring 서브태그 태그명 check-thread-pool (default : ms) 설명 Thread Pool 안에있는 Worker Thread 의상태를점검하기위한시간간격을설정 설정된시간간격을주기로 Worker Thread 의상태를점검 2.2 JEUS 6.x 설정 thread-state-notify 서브태그 태그명 max-thread-active-time (ms) notify-threshold-ratio ( 소수점이하로설정 : 0.5) notify-subject restart-subject thread-interrupt-execution restart-engine-execution 설명 Thread 가수행될수있는최대시간값. Worker thread 가클라이언트요청을서비스할때부터측정되며초과할경우해당 Thread 를강제로 Block 시킴 Block 된 Thread 의최대비율를설정할수있으며이를초과하면 smtp-handler 에설정된 주소로해당내용을통보 Therad Pool 의 Max Thread 개수에서설정된비율로값을기준값을산정 notify-threadhold 조건초과에대한통보시사용되는 Subject Container Restart 수행에대한 통보시사용되는 Subject 최대수행시간초과로 Blocked 상태로변한 Thread 에 interrupt 신호를보낼것인지결정 interrupt 신호를받은 Thread 는 Exception 후삭제됨최대수행시간초과로 Blocked 상태로변한 Thread의개수가 restart-threshod-ratio 를넘어선경우해당 engine 의 restart 유무를결정 6

7 monitoring 서브태그 태그명 check-thread-pool (default : ms) 설명 Thread Pool 안에있는 Worker Thread 의상태를점검하기위한시간간격을설정 설정된시간간격을주기로 Worker Thread 의상태를점검 3. 테스트 3.1 테스트환경 테스트버전 : JEUS Test 소스파일 : sleep.jsp, urlconnection.jsp sleep.jsp : Thread Hang 상태를만들기위하여 Thread.sleep 를사용함. <% Thread.sleep( ); out.println(" =================="); %> urlconnection.jsp : Socket 통신중에 Hang 이발생한 Thread 을만들기위하여사용함. sleep.jsp 를 socket 통신으로 read 하므로원격지에서응답이없어 Thread Hang 이발생 <%@ page language = "java" contenttype="text/html;charset=euc-kr" %> <%@ page import="java.net.*" %> <%@ page import="java.io.*" %> <% try{ String address = " URL url = new URL(address); URLConnection conn = (URLConnection) url.openconnection(); InputStream is = conn.getinputstream(); InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr); String line = null; while((line=br.readline())!=null){ out.println(line); %><br><br><% } out.println("######## Url Connection end ########"); }catch(ioexception e){ out.println(e.tostring()); } %> 7

8 3.2 테스트 Thread block 테스트 check-thread-pool 5 초, max-thread-active-time 10 초설정후 sleep.jsp 테스트 sleep.jsp 가수행된후 10 초가지나면서 blocked 상태로변하고신규 Thread 가생성되는것을 Thread 상태에서확 인할수있습니다. JEUS Server log 에서도 Thread 가 blocked 로변하고신규 Thread 가생성되는과정을확인할수 있습니다. WEBMain.xml <?xml version="1.0"?> <web-container xmlns=" version="6.0"> <monitoring> <check-thread-pool>5000</check-thread-pool>  </monitoring> <webtob-listener> <max-thread-active-time>10000</max-thread-active-time>  Thread Pool 상태 (min:4, max:4) 51 webtob1-hth0(localhost:9900)-w00 waiting webtob1-hth0(localhost:9900)-w01 waiting webtob1-hth0(localhost:9900)-w02 waiting webtob1-hth0(localhost:9900)-w03 active 2749 /test1/sleep.jsp sleep.jsp 실행 10초경과 51 webtob1-hth0(localhost:9900)-w00 waiting webtob1-hth0(localhost:9900)-w01 waiting webtob1-hth0(localhost:9900)-w02 waiting webtob1-hth0(localhost:9900)-w03 blocked /test1/sleep.jsp Blocked Thread 57 webtob1-hth0(localhost:9900)-w4 waiting 2730 신규 Thread 8

9 JEUS Server log deleting long active thread (webtob1-hth0(localhost:9900)-w03), active time = 13275, uri = /test1/sleep.jsp, alive = true blocked thread (webtob1-hth0(localhost:9900)-w03) - uri : /test1/sleep.jsp, alive = true creating new thread (webtob1-hth0(localhost:9900)-w Blocked Thread 삭제 일반 JSP 번설정에서 thread-interrupt-execution 추가후 sleep.jsp 테스트 sleep.jsp 가수행된후 10 초가지나면서 blocked 상태로변하고신규 Thread 가생성되는것을 Thread 상태에서확 인할수있습니다. 이때 blocked 상태로변한 Thread 는 interrupt 신호를받고 Exception 을발생시키며삭제되는것 을 JEUS Server log 에서확인할수있습니다. WEBMain.xml <?xml version="1.0"?> <web-container xmlns=" version="6.0"> <monitoring> <check-thread-pool>5000</check-thread-pool>  </monitoring> <webtob-listener> <max-thread-active-time>10000</max-thread-active-time>  <thread-interrupt-execution>true</thread-interrupt-execution>  9

10 Thread Pool 상태 (min:4, max:4) 52 webtob1-hth0(localhost:9900)-w01 waiting webtob1-hth0(localhost:9900)-w02 waiting webtob1-hth0(localhost:9900)-w03 waiting webtob1-hth0(localhost:9900)-w4 active 637 /test1/sleep.jsp sleep.jsp 실행 10초경과 52 webtob1-hth0(localhost:9900)-w01 waiting webtob1-hth0(localhost:9900)-w02 waiting webtob1-hth0(localhost:9900)-w03 waiting webtob1-hth0(localhost:9900)-w4 blocked unknown Blocked Thread 59 webtob1-hth0(localhost:9900)-w5 waiting 579 신규 Thread Interrupt 신호를보냄 52 webtob1-hth0(localhost:9900)-w01 waiting webtob1-hth0(localhost:9900)-w02 waiting webtob1-hth0(localhost:9900)-w03 waiting webtob1-hth0(localhost:9900)-w5 waiting 5751 Blocked Thread 사라짐 JEUS Server log deleting long active thread (webtob1-hth0(localhost:9900)-w4), active time = 10100, uri = /test1/sleep.jsp, alive = true, <<stacktrace(webtob1-hth0(localhost:9900)-w4)>> java.lang.thread.sleep(native Method) jeus_jspwork._600_sleep_5fjsp._jspservice(_600_sleep_5fjsp.java:50) jeus.servlet.jsp2.runtime.httpjspbase.service(httpjspbase.java:106) javax.servlet.http.httpservlet.service(httpservlet.java:818) blocked thread (webtob1-hth0(localhost:9900)-w4) - uri : /test1/sleep.jsp, alive = true Failed to execute jsp : /sleep.jsp << Exception >> javax.servlet.servletexception: java.lang.interruptedexception: sleep interrupted at jeus.servlet.jsp2.runtime.pagecontextimpl.dohandlepageexception at jeus.servlet.jsp2.runtime.pagecontextimpl.handlepageexception at jeus_jspwork._600_sleep_5fjsp._jspservice at jeus.servlet.jsp2.runtime.httpjspbase.service at javax.servlet.http.httpservlet.service at jeus.servlet.jsp.jspservletwrapper.executeservlet at jeus.servlet.engine.servletwrapper.execute at jeus.servlet.jsp.jspservletwrapper.execute at jeus.servlet.engine.webtobrequestprocessor.run Caused by: java.lang.interruptedexception: sleep interrupted at java.lang.thread.sleep at jeus_jspwork._600_sleep_5fjsp._jspservice... 6 more 10

11 3.2.3 Blocked Thread 삭제 Socket 통신중인 jsp 수행 번설정에서 thread-interrupt-execution 추가후 urlconnection.jsp 테스트 urlconnection.jsp 가수행된후 10 초가지나면서 blocked 상태로변하고신규 Thread 가생성되는것을 Thread 상태 에서확인할수있습니다. 이때 blocked 상태로변한 Thread 는 2) 번의 sleep.jsp 실행시와같이 interrupt 신호를받 지만 interrupt Exception 을발생시키지못하고계속 Thread Pool 에남아있는것을확인할수있습니다. 해당 Thread 는 300 초가지난후에아래 log 와함께삭제되었습니다. worker(webtob1-hth0(localhost:9900)-w02:unix(hth-0:9900:44)) : terminated WEBMain.xml <?xml version="1.0"?> <web-container xmlns=" version="6.0"> <monitoring> <check-thread-pool>5000</check-thread-pool>  </monitoring> <webtob-listener> <max-thread-active-time>10000</max-thread-active-time>  <thread-interrupt-execution>true</thread-interrupt-execution>  Thread Pool 상태 (min:4, max:4) 51 webtob1-hth0(localhost:9900)-w00 active 921 /test1/urlconnection.jsp urlconnection.jsp 실행 52 webtob1-hth0(localhost:9900)-w01 waiting webtob1-hth0(localhost:9900)-w02 waiting webtob1-hth0(localhost:9900)-w03 waiting 초경과 51 webtob1-hth0(localhost:9900)-w00 blocked /test1/urlconnection.jsp Blocked Thread 52 webtob1-hth0(localhost:9900)-w01 waiting webtob1-hth0(localhost:9900)-w02 waiting webtob1-hth0(localhost:9900)-w03 waiting webtob1-hth0(localhost:9900)-w4 waiting 124 신규 Thread 11

12 JEUS Server log webtob1-hth0(localhost:9900):3:1 deleting long active thread (webtob1-hth0(localhost:9900)-w00), active time = 11826, uri = /test1/urlconnection.jsp, alive = true, <<stacktrace(webtob1-hth0(localhost:9900)-w00)>> java.net.socketinputstream.socketread0(native Method) java.net.socketinputstream.read(socketinputstream.java:129) java.io.bufferedinputstream.fill(bufferedinputstream.java:218) java.io.bufferedinputstream.read1(bufferedinputstream.java:256) java.io.bufferedinputstream.read(bufferedinputstream.java:313) sun.net. sun.net. sun.net. webtob1-hth0(localhost:9900):3:1 blocked thread (webtob1-hth0(localhost:9900)-w00) - uri : /test1/urlconnection.jsp, alive = true Container restart 테스트 번설정에서 restart-engine-execution 과 restart-threshold-ratio 를 0.5(50%) 로설정하고 urlconnection.jsp 테스트 active 중인 w02 Thread 가 10 초이상수행되면서 Blocked 됩니다. 이로인해 Blocked 된 Thread 가전체의 50%( 총 4 개중 2 개 w00, w02) 넘기면서 restart 하는조건에만족하여해당 Container 가 Thread dump 를남기고 restart 하게됩니다. WEBMain.xml <?xml version="1.0"?> <web-container xmlns=" version="6.0"> <monitoring> <check-thread-pool>5000</check-thread-pool>  </monitoring> <webtob-listener> <max-thread-active-time>10000</max-thread-active-time>  <restart-threshold-ratio>0.5</restart-threshold-ratio>  <restart-engine-execution>true</ restart-engine-execution>  12

13 Thread Pool 상태 (min:4, max:4) 51 webtob1-hth0(localhost:9900)-w00 blocked /test1/urlconnection.jsp 52 webtob1-hth0(localhost:9900)-w01 waiting webtob1-hth0(localhost:9900)-w02 active 517 /test1/urlconnection.jsp 54 webtob1-hth0(localhost:9900)-w03 waiting webtob1-hth0(localhost:9900)-w04 waiting 초경과 webtob1-hth0(localhost:9900)-w02 가 Blocked Thread 가되면서 Container Restart JEUS Server log (tmaxdev_servlet_engine2) (webtob1-hth0(localhost:9900)) thread state reporting [active, :54:44, ms][/test1/urlconnection.jsp] [active, :55:10, ms][/test1/urlconnection.jsp]... Now engine restarting... Full thread dump Java HotSpot(TM) Server VM (1.5.0_20-b02 mixed mode)... engine tmaxdev_servlet_engine2 of the container tmaxdev_container2 is trying to restart trying to shutdown container tmaxdev_container JEUS 5.x JEUS 5.x 는 6.x 와같은방식으로 Thread state notify 가수행되지만다른부분이몇가지있습니다. 최대수행시간 (max-thread-active-time) 을지나는 Thread 에대해서는 Blocked 상태로만들지만 6.x 와달리 interrupt 신호를줄것인지유무를설정하지않고바로수행합니다. Blocked Thread 의최대값은 6.x 와달리개수로지정하고 Container restart 또한유무를설정하지않고최대값을넘 어서면바로수행됩니다. 13

14 Copyright 2014 TmaxSoft Co., Ltd. All Rights Reserved. Trademarks Tmax, WebtoB, WebT, JEUS, ProFrame, SysMaster and OpenFrame are registered trademarks of TmaxSoft Co., Ltd. Other products, titles or services may be registered trademarks of their respective companies. Contact Information TmaxSoft can be contacted at the following addresses to arrange for a consulting team to visit your company and discuss your options. Korea TmaxSoft Co., Ltd 5, Hwangsaeul-ro 329beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do. South Korea Tel: Fax: info@tmax.co.kr Web (Korean): Technical Support: USA TmaxSoft, Inc. 560 Sylvan Avenue Englewood Cliffs, NJ U.S.A Tel: Fax: info@tmaxsoft.com Web (English): Russia Tmax Russia L.L.C. Grand Setun Plaza, No A204 Gorbunova st.2, Moscow, Tel: +7(495) info.rus@tmaxsoft.com Web (Russian): Singapore Tmax Singapore Pte. Ltd. 430 Lorong 6, Toa Payoh #10-02, OrangeTee Building. Singapore Tel: info.sg@tmaxsoft.com United Kingdom TmaxSoft UK Ltd. Surrey House, Suite 221, 34 Eden Street, Kingston-Upon- Thames, KT1 1ER United Kingdom Tel: + 44-(0) info.uk@tmaxsoft.com Web (English): Japan TmaxSoft Japan Co., Ltd. 5F Sanko Bldg, Mita, Minato-Ku, Tokyo, Japan Tel: Fax: info.jp@tmaxsoft.com Web (Japanese): China TmaxSoft China Co., Ltd. Beijing Silver Tower, RM 1508, 2 North Rd Dong San Huan, Chaoyang District, Beijing, China, China Tel: ~8 Fax: info.cn@tmaxsoft.com Web (Chinese): Brazil TmaxSoft Brazil Avenida Copacabana, andar 18 do Forte Empresarial, Alphaville - Barueri, Sao Paulo, SP-Brasil CEP contato.brasil@tmaxsoft.com TD-JSCF-D

개발및운영 Tibero DB Link (Tibero To Oracle) - Local 방식

개발및운영 Tibero DB Link (Tibero To Oracle) - Local 방식 Tibero DB Link (Tibero To Oracle) - Local 방식 2014. 04. 16. 목차 1. 구성환경... 3 2. 환경설정... 3 2.1. Tibero 서버 (AIX) 에 Oracle instance Client 파일을업로드... 3 2.2. Oracle Instance Client에대한환경설정등록 (.profile)... 4 2.3.