{"id":243,"date":"2024-04-22T02:16:04","date_gmt":"2024-04-21T17:16:04","guid":{"rendered":"https:\/\/redutan.synology.me\/wordpress\/?p=243"},"modified":"2024-04-23T18:40:04","modified_gmt":"2024-04-23T09:40:04","slug":"java-21-virtual-thread-configuration-on-spring-boot-3-2-x","status":"publish","type":"post","link":"https:\/\/redutan.synology.me\/wordpress\/2024\/04\/22\/java-21-virtual-thread-configuration-on-spring-boot-3-2-x\/","title":{"rendered":"Java 21 Virtual Thread Configuration on spring-boot 3.2.x"},"content":{"rendered":"\n
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\uc774 \uae00\uc744 \uc77d\uae30 \uc804\uc5d0 \uc544\ub798 \uae00\uc744 \uba3c\uc800 \uc77d\uae30\ub97c \ucd94\ucc9c\ub4dc\ub9bd\ub2c8\ub2e4. \uba3c\uc800 Virtual Thread\ub97c \uc801\uc6a9\ud558\uae30 \uc804\uc5d0 \uc81c\uc57d\uc5d0 \ub300\ud55c \uc774\ud574\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\bISSUE: Pinning inside synchronized<\/a><\/cite><\/blockquote>\n\n\n\n

spring-boot 3.2.x \uc5d0\uc11c \ub4dc\ub514\uc5b4 JEP-444<\/a> Virtual Thread \uae30\ub2a5\uc744 \ud65c\uc131\ud654 \uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.
Virtual Thread \uc640 \uad00\ub828\ub41c \uc790\uc138\ud55c \ub0b4\uc6a9\uc744 \uc54c\uace0 \uc2f6\uc73c\uc2dc\uba74, Oracle \uacf5\uc2dd \ubb38\uc11c<\/a>\ub97c \ud655\uc778\ud558\ub294 \uac83\uc744 \ucd94\ucc9c\ud569\ub2c8\ub2e4.
(\uae30\uc874 Thread\ub294 Platform Thread\ub77c\uace0 \ubd80\ub974\ub124\uc694.)<\/p>\n\n\n\n

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\uacb0\ub860 \ubd80\ud130 \ub9d0\uc500\ub4dc\ub9ac\uba74 \uc11c\ube44\uc2a4\uac00 DB(jdbc-drivere)\uc5d0 \uc758\uc874\ud558\uace0 \uc788\ub2e4\uba74 \uc544\uc9c1\uc740 Virtual Thread\ub97c \uc0ac\uc6a9\ud558\uae30\uc5d0\ub294 \ubb34\ub9ac\uc785\ub2c8\ub2e4. <\/p>\n\uae30\ubcf8 \uc804\ub7b5\uc73c\ub85c\ub294 Platform Thread(\uae30\uc874 \ubc29\uc2dd)\uc744 \uadf8\ub300\ub85c \uc0ac\uc6a9\ud558\uc2dc\uace0, I\/O \ub300\uae30\uac00 \uac78\ub9ac\ub294 \ubd80\ubd84\ub9cc Virtual Thread\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc744 \uad8c\uc7a5\ud569\ub2c8\ub2e4.<\/cite><\/blockquote>\n\n\n\n

<\/p>\n\n\n\n

Virtual Thread<\/h2>\n\n\n\n
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spring<\/span>:<\/span><\/span>\n  <\/span>threads<\/span>:<\/span><\/span>\n    <\/span>virtual<\/span>:<\/span><\/span>\n      <\/span>enabled<\/span>:<\/span> <\/span>true<\/span>                   <\/span># virtual thread \ud65c\uc131\ud654<\/span><\/span><\/code><\/pre>YAML<\/span><\/div>\n\n\n\n
\uc704 \uc635\uc158\uc73c\ub85c \ud65c\uc131\ud654 \uc2dc\ud0a4\uba74 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ub0b4 \ubaa8\ub4e0 Thread \ub4e4\uc774 Virtual thread\ub85c \ud65c\uc131\ud654 \ub429\ub2c8\ub2e4. Tomcat \uc6f9\uc11c\ubc84, Async, Scheduling \ub4f1 \ub2e4 \ud3ec\ud568\ub429\ub2c8\ub2e4. \uae30\uc874\uc5d0 Platform Thread\ub97c \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0\uc5d0\ub294 Thread \uc0dd\uc131 \ube44\uc6a9\uc774 \ube44\uc2f8\uae30 \ub54c\ubb38\uc5d0 \uae30\ubcf8\uc801\uc73c\ub85c Thread Pool \ub85c \uc124\uc815\ud574\uc57c\ud569\ub2c8\ub2e4. \ud558\uc9c0\ub9cc Virtual Thread\ub97c \uc0ac\uc6a9\ud55c\ub2e4\uba74 Thread Pool \uc124\uc815\uc740 \uc624\ud788\ub824 \ub0ad\ube44\uac00 \ub429\ub2c8\ub2e4. \uadf8\ub7ec\ubbc0\ub85c Thread Pool \uc124\uc815\uc744 \ube44\ud65c\uc131\ud654 \ud574\uc57c\ud569\ub2c8\ub2e4. \ud639\uc2dc\ub098 \ucee4\uc2a4\ud140\uc73c\ub85c \uc124\uc815\ub41c \uac83\uc774 \uc788\ub2e4\uba74 \uc81c\uac70\ud574\uc57c\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n
TomcatWebServerFactoryCustomizer<\/code> \ucf54\ub4dc \uc77c\ubd80<\/em><\/p>\n\n\n\n
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\t@<\/span>Configuration<\/span>(<\/span>proxyBeanMethods<\/span> <\/span>=<\/span> <\/span>false<\/span>)<\/span><\/span>\n\t@<\/span>ConditionalOnClass<\/span>({ Tomcat.class, UpgradeProtocol.class })<\/span><\/span>\n\t<\/span>public<\/span> <\/span>static<\/span> <\/span>class<\/span> <\/span>TomcatWebServerFactoryCustomizerConfiguration<\/span> {<\/span><\/span>\n<\/span>\n\t\t@<\/span>Bean<\/span><\/span>\n\t\t<\/span>public<\/span> <\/span>TomcatWebServerFactoryCustomizer<\/span> <\/span>tomcatWebServerFactoryCustomizer<\/span>(<\/span>Environment<\/span> <\/span>environment<\/span>,<\/span><\/span>\n\t\t\t\t<\/span>ServerProperties<\/span> <\/span>serverProperties<\/span>) {<\/span><\/span>\n\t\t\t<\/span>return<\/span> <\/span>new<\/span> <\/span>TomcatWebServerFactoryCustomizer<\/span>(environment, serverProperties);<\/span><\/span>\n\t\t}<\/span><\/span>\n<\/span>\n\t\t@<\/span>Bean<\/span><\/span>\n\t\t@<\/span>ConditionalOnThreading<\/span>(Threading.VIRTUAL)<\/span><\/span>\n\t\t<\/span>TomcatVirtualThreadsWebServerFactoryCustomizer<\/span> <\/span>tomcatVirtualThreadsProtocolHandlerCustomizer<\/span>() {<\/span><\/span>\n\t\t\t<\/span>return<\/span> <\/span>new<\/span> <\/span>TomcatVirtualThreadsWebServerFactoryCustomizer<\/span>();<\/span><\/span>\n\t\t}<\/span><\/span>\n\t}<\/span><\/span><\/code><\/pre>Java<\/span><\/div>\n\n\n\n
<\/p>\n\n\n\n
Async<\/h2>\n\n\n\n
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spring<\/span>:<\/span><\/span>\n  <\/span>task<\/span>:<\/span><\/span>\n    <\/span>execution<\/span>:<\/span><\/span>\n      <\/span>shutdown<\/span>:<\/span><\/span>\n        <\/span>await-termination<\/span>:<\/span> <\/span>true<\/span>       <\/span># \uc2a4\ub808\ub4dc\uac00 \uc885\ub8cc\ub420 \ub54c \uae4c\uc9c0 \ub300\uae30\ud560 \uac83\uc778\uac00?<\/span><\/span>\n        <\/span>await-termination-period<\/span>:<\/span> <\/span>30s<\/span> <\/span># \uc885\ub8cc \uc2dc \ucd5c\ub300 \ub300\uae30 \uae30\uac04<\/span><\/span>\n      <\/span>simple<\/span>:<\/span><\/span>\n        <\/span>concurrency-limit<\/span>:<\/span> <\/span>-1<\/span>         <\/span># -1: unllimited<\/span><\/span><\/code><\/pre>YAML<\/span><\/div>\n\n\n\n
Schedulinng \uad00\ub828 \uc124\uc815\uc740 \uc5c6\uc2b5\ub2c8\ub2e4.

Virtual Thread\ub97c \ud65c\uc131\ud654 \uc2dc\ud0a4\uba74 spring task(@Async<\/code>) \uc5d0\uc11c\ub294 \uae30\ubcf8\uc801\uc73c\ub85c SimpleAsyncTaskExecutor<\/code>\ub97c \uc0ac\uc6a9\ud558\uac8c \ub429\ub2c8\ub2e4. \uace0\ub85c \ud544\uc694\ud55c \uc124\uc815\uc740 \uc544\ub798 4\uac1c\uc758 \uc18d\uc131\ub9cc \uc124\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n