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SERVER HANG & SLOWDOWN 문제 - Opennaru, Inc. · Basics "http-thread-pool-threads - 250" prio=10...
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SERVER HANG & SLOWDOWN 문제
Transcript of SERVER HANG & SLOWDOWN 문제 - Opennaru, Inc. · Basics "http-thread-pool-threads - 250" prio=10...
![Page 1: SERVER HANG & SLOWDOWN 문제 - Opennaru, Inc. · Basics "http-thread-pool-threads - 250" prio=10 tid=0x000C7fab9c192800 nid=0xdbc9 wpiting on condition [Ox00007faa6ce2c000] java.lang.Thread.State:](https://reader034.fdocument.pub/reader034/viewer/2022043017/5f39ad92d4cb814bc94702cf/html5/thumbnails/1.jpg)
SERVER HANG & SLOWDOWN 문제
![Page 2: SERVER HANG & SLOWDOWN 문제 - Opennaru, Inc. · Basics "http-thread-pool-threads - 250" prio=10 tid=0x000C7fab9c192800 nid=0xdbc9 wpiting on condition [Ox00007faa6ce2c000] java.lang.Thread.State:](https://reader034.fdocument.pub/reader034/viewer/2022043017/5f39ad92d4cb814bc94702cf/html5/thumbnails/2.jpg)
Server Hang
![Page 3: SERVER HANG & SLOWDOWN 문제 - Opennaru, Inc. · Basics "http-thread-pool-threads - 250" prio=10 tid=0x000C7fab9c192800 nid=0xdbc9 wpiting on condition [Ox00007faa6ce2c000] java.lang.Thread.State:](https://reader034.fdocument.pub/reader034/viewer/2022043017/5f39ad92d4cb814bc94702cf/html5/thumbnails/3.jpg)
Server Hang이란?
![Page 4: SERVER HANG & SLOWDOWN 문제 - Opennaru, Inc. · Basics "http-thread-pool-threads - 250" prio=10 tid=0x000C7fab9c192800 nid=0xdbc9 wpiting on condition [Ox00007faa6ce2c000] java.lang.Thread.State:](https://reader034.fdocument.pub/reader034/viewer/2022043017/5f39ad92d4cb814bc94702cf/html5/thumbnails/4.jpg)
Server Hang의 원인
![Page 5: SERVER HANG & SLOWDOWN 문제 - Opennaru, Inc. · Basics "http-thread-pool-threads - 250" prio=10 tid=0x000C7fab9c192800 nid=0xdbc9 wpiting on condition [Ox00007faa6ce2c000] java.lang.Thread.State:](https://reader034.fdocument.pub/reader034/viewer/2022043017/5f39ad92d4cb814bc94702cf/html5/thumbnails/5.jpg)
스레드 덤프의 정보 구성
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Thread 상태
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Thread State – Server Hang
![Page 8: SERVER HANG & SLOWDOWN 문제 - Opennaru, Inc. · Basics "http-thread-pool-threads - 250" prio=10 tid=0x000C7fab9c192800 nid=0xdbc9 wpiting on condition [Ox00007faa6ce2c000] java.lang.Thread.State:](https://reader034.fdocument.pub/reader034/viewer/2022043017/5f39ad92d4cb814bc94702cf/html5/thumbnails/8.jpg)
Thread State – Server Hang
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Thread State – Server Hang
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Thread State – Server Hang
![Page 11: SERVER HANG & SLOWDOWN 문제 - Opennaru, Inc. · Basics "http-thread-pool-threads - 250" prio=10 tid=0x000C7fab9c192800 nid=0xdbc9 wpiting on condition [Ox00007faa6ce2c000] java.lang.Thread.State:](https://reader034.fdocument.pub/reader034/viewer/2022043017/5f39ad92d4cb814bc94702cf/html5/thumbnails/11.jpg)
Thread State – Server Hang
![Page 12: SERVER HANG & SLOWDOWN 문제 - Opennaru, Inc. · Basics "http-thread-pool-threads - 250" prio=10 tid=0x000C7fab9c192800 nid=0xdbc9 wpiting on condition [Ox00007faa6ce2c000] java.lang.Thread.State:](https://reader034.fdocument.pub/reader034/viewer/2022043017/5f39ad92d4cb814bc94702cf/html5/thumbnails/12.jpg)
![Page 13: SERVER HANG & SLOWDOWN 문제 - Opennaru, Inc. · Basics "http-thread-pool-threads - 250" prio=10 tid=0x000C7fab9c192800 nid=0xdbc9 wpiting on condition [Ox00007faa6ce2c000] java.lang.Thread.State:](https://reader034.fdocument.pub/reader034/viewer/2022043017/5f39ad92d4cb814bc94702cf/html5/thumbnails/13.jpg)
스레드 덤프
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스레드 덤프 받는 방법은?
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Java thread 덤프의 중요성
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Take at least 3 times, with 1 to 2 seconds interval
To analyze thread dumps
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![Page 18: SERVER HANG & SLOWDOWN 문제 - Opennaru, Inc. · Basics "http-thread-pool-threads - 250" prio=10 tid=0x000C7fab9c192800 nid=0xdbc9 wpiting on condition [Ox00007faa6ce2c000] java.lang.Thread.State:](https://reader034.fdocument.pub/reader034/viewer/2022043017/5f39ad92d4cb814bc94702cf/html5/thumbnails/18.jpg)
Server가 느려 지는 상황에서 Dashboard
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Thread Dump 분석
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Thread Dump 분석
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Thread dump 분석 후 원인 파악
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“살아 남는 종(種)은 강한 종이 아니고,
또 우수한 종도 아니다.
변화에 적응하는 종이다. ”
- Charles Darwin, 1809
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감사합니다.
![장애처리와튜닝프로세스(Thread Dump 분석 - Opennaru, Inc.opennaru.com/wp-content/uploads/2018/02/KHAN_Thread_Dump... · 2018-02-27 · KHAN [apm] 스레드덤프분석예시](https://static.fdocument.pub/doc/165x107/5f15e71393c9b830ad4e49f1/eoeeeoethread-dump-e-opennaru-inc-2018-02-27.jpg)
