{"id":1169,"date":"2015-02-03T22:01:58","date_gmt":"2015-02-03T14:01:58","guid":{"rendered":"http:\/\/coderbee.net\/?p=1169"},"modified":"2015-02-03T22:02:29","modified_gmt":"2015-02-03T14:02:29","slug":"akka-%e6%96%87%e6%a1%a3%ef%bc%9a%e7%9d%a3%e5%af%bc%e4%b8%8e%e7%9b%91%e6%8e%a7","status":"publish","type":"post","link":"https:\/\/coderbee.net\/index.php\/akka\/20150203\/1169","title":{"rendered":"Akka \u6587\u6863\uff1a\u7763\u5bfc\u4e0e\u76d1\u63a7"},"content":{"rendered":"<p>\u7ffb\u8bd1\u81ea\uff1a<a href=\"http:\/\/doc.akka.io\/docs\/akka\/2.3.8\/general\/supervision.html\">http:\/\/doc.akka.io\/docs\/akka\/2.3.8\/general\/supervision.html<\/a><\/p>\n<h1>\u7763\u5bfc\u4e0e\u76d1\u63a7<\/h1>\n<p>\u672c\u7ae0\u5927\u6982\u63cf\u8ff0\u7763\u5bfc\u80cc\u540e\u7684\u6982\u5ff5\uff0c\u63d0\u4f9b\u7684\u539f\u8bed\u548c\u8bed\u4e49\u3002\u5982\u4f55\u8f6c\u6362\u6210\u5b9e\u9645\u4ee3\u7801\u7684\u7ec6\u8282\u8bf7\u53c2\u8003\u76f8\u5173\u7684 Scala \u548c  Java API\u3002<\/p>\n<p><a name=\"supervision\"><\/a><\/p>\n<h2>\u7763\u5bfc\u610f\u5473\u7740\u4ec0\u4e48<\/h2>\n<p>\u5982 <a href=\"http:\/\/coderbee.net\/index.php\/akka\/20150121\/1160\">Actor \u7cfb\u7edf<\/a> \u91cc\u63cf\u8ff0\u7684\uff0c\u7763\u5bfc\u63cf\u8ff0\u4e86 actors \u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb\uff1a\u7763\u5bfc\u8005\u59d4\u6258\u4efb\u52a1\u7ed9\u4e0b\u5c5e\uff0c\u56e0\u6b64\u5fc5\u987b\u4e3a\u5b83\u4eec\u7684\u5931\u8d25\u8d1f\u8d23\u3002\u5f53\u4e00\u4e2a\u4e0b\u5c5e\u68c0\u6d4b\u5230\u4e00\u4e2a\u5931\u8d25\uff08\u4f8b\u5982\u629b\u51fa\u5f02\u5e38\uff09\uff0c\u5b83\u6302\u8d77\u81ea\u5df1\u548c\u5b83\u7684\u6240\u6709\u4e0b\u5c5e\uff0c\u5b83\u7684\u7763\u5bfc\u8005\u53d1\u9001\u4e00\u4e2a\u63d0\u793a\u5931\u8d25\u7684\u6d88\u606f\u3002\u53d6\u51b3\u4e8e\u88ab\u7763\u5bfc\u7684\u5de5\u4f5c\u7684\u6027\u8d28\u548c\u5931\u8d25\u7684\u6027\u8d28\uff0c\u7763\u5bfc\u8005\u6709\u4e0b\u9762\u56db\u4e2a\u9009\u62e9\uff1a<\/p>\n<ol>\n<li>\u8ba9\u4e0b\u5c5e\u7ee7\u7eed\u6267\u884c\uff0c\u4fdd\u6301\u5f53\u524d\u7684\u5185\u90e8\u72b6\u6001\uff1b<\/li>\n<li>\u91cd\u542f\u4e0b\u5c5e\uff0c\u6e05\u7406\u5b83\u7684\u5f53\u524d\u5185\u90e8\u72b6\u6001\uff1b<\/li>\n<li>\u6c38\u4e45\u505c\u6b62\u4e0b\u5c5e\uff1b<\/li>\n<li>\u5411\u4e0a\u4f20\u9012\u5931\u8d25\uff0c\u4f7f\u81ea\u5df1\u5931\u8d25\u3002<\/li>\n<\/ol>\n<p>\u603b\u662f\u628a\u4e00\u4e2a actor \u5f53\u4f5c\u7763\u5bfc\u5c42\u7ea7\u7684\u4e00\u90e8\u5206\u662f\u5f88\u91cd\u8981\u7684\uff0c\u8fd9\u89e3\u91ca\u4e86\u56db\u79cd\u9009\u62e9\u7684\u5b58\u5728\uff08\u4e00\u4e2a\u7763\u5bfc\u8005\u4e5f\u662f\u53e6\u4e00\u4e2a\u66f4\u9ad8\u7ea7\u7684\u7763\u5bfc\u8005\u7684\u4e0b\u5c5e\uff09\uff0c\u4e14\u524d\u4e09\u8005\u6697\u793a\u7740\uff1a\u8ba9\u4e00\u4e2a actor \u7ee7\u7eed\u6267\u884c\u5c06\u6267\u884c\u5b83\u7684\u6240\u6709\u4e0b\u5c5e\uff0c\u91cd\u542f\u4e00\u4e2a actor \u5c06\u91cd\u542f\u5b83\u7684\u6240\u6709\u4e0b\u5c5e\uff08\u4f46\u6709\u66f4\u591a\u7ec6\u8282\u89c1\u4e0b\u9762\uff09\uff0c\u76f8\u4f3c\u5730\uff0c\u7ec8\u6b62\u4e00\u4e2a actor \u5c06\u7ec8\u6b62\u5b83\u7684\u6240\u6709\u4e0b\u5c5e\u3002\u8981\u6ce8\u610f\u7684\u662f\uff0c<code>Actor<\/code> \u7c7b\u7684 <code>preRestart<\/code> \u94a9\u5b50\u7684\u9ed8\u8ba4\u884c\u4e3a\u662f\u5728\u91cd\u542f\u524d\u7ec8\u6b62\u5b83\u7684\u6240\u6709\u4e0b\u5c5e\uff0c\u4f46\u8fd9\u4e2a\u94a9\u5b50\u53ef\u4ee5\u88ab\u8986\u5199\uff1b\u5728\u8fd9\u4e2a\u94a9\u5b50\u88ab\u6267\u884c\u540e\uff0c\u9012\u5f52\u91cd\u542f\u88ab\u5e94\u7528\u5230\u6240\u6709\u7684\u5b69\u5b50\u4e0a\u3002<\/p>\n<p>\u6bcf\u4e2a\u7763\u5bfc\u8005\u914d\u7f6e\u4e86\u4e00\u4e2a\u51fd\u6570\u6765\u7ffb\u8bd1\u6240\u6709\u53ef\u80fd\u7684\u5931\u8d25\u539f\u56e0\uff08\u5982\u5f02\u5e38\uff09\u5230\u4e0a\u9762\u7ed9\u51fa\u7684\u56db\u79cd\u9009\u62e9\u4e4b\u4e00\uff1b\u6ce8\u610f\uff0c\u8fd9\u4e2a\u51fd\u6570\u4e0d\u63a5\u53d7\u5931\u8d25\u7684 actor \u672c\u8eab\u4f5c\u4e3a\u8f93\u5165\u3002\u5f88\u5bb9\u6613\u63d0\u51fa\u4e00\u79cd\u793a\u4f8b\u7ed3\u6784\u8ba9\u8fd9\u4e2a\u770b\u8d77\u6765\u4e0d\u591f\u7075\u6d3b\uff0c\u4f8b\u5982\uff0c\u5e0c\u671b\u4e3a\u4e0d\u540c\u7684\u4e0b\u5c5e\u5e94\u7528\u4e0d\u540c\u7684\u7b56\u7565\u3002\u6b64\u523b\uff0c\u660e\u767d\u7763\u5bfc\u662f\u5f62\u6210\u9012\u5f52\u7684\u5931\u8d25\u5904\u7406\u7ed3\u6784\u662f\u5f88\u91cd\u8981\u7684\u3002\u5982\u679c\u4f60\u5c1d\u8bd5\u5728\u67d0\u4e00\u5c42\u505a\u592a\u591a\uff0c\u5c06\u96be\u4ee5\u7406\u89e3\uff0c\u56e0\u6b64\uff0c\u5bf9\u8fd9\u79cd\u60c5\u51b5\u63a8\u8350\u7684\u65b9\u5f0f\u662f\u6dfb\u52a0\u4e00\u4e2a\u7763\u5bfc\u5c42\u7ea7\u3002<\/p>\n<p><!--more--><\/p>\n<p>Akka \u5b9e\u73b0\u4e86\u4e00\u4e2a\u53eb\u505a\u201d\u7236\u7763\u5bfc\u201c\u7684\u5f62\u5f0f\u3002Actors \u53ea\u80fd\u7531\u5176\u4ed6 actors \u521b\u5efa\uff08\u9876\u7ea7 actor \u7531\u7c7b\u5e93\u63d0\u4f9b\uff09\uff0c\u6bcf\u4e2a\u88ab\u521b\u5efa\u7684 actor \u7531\u5b83\u7684\u7236\u4eb2\u7763\u5bfc\u3002\u8fd9\u79cd\u9650\u5236\u4f7f\u5f97 actor \u7684\u6811\u5f62\u5c42\u6b21\u62e5\u6709\u660e\u786e\u7684\u5f62\u5f0f\uff0c\u5e76\u63d0\u5021\u5408\u7406\u7684\u8bbe\u8ba1\u65b9\u6cd5\u3002 \u5fc5\u987b\u5f3a\u8c03\u7684\u662f\u8fd9\u4e5f\u540c\u65f6\u4fdd\u8bc1\u4e86actor\u4eec\u4e0d\u4f1a\u6210\u4e3a\u5b64\u513f\u6216\u8005\u62e5\u6709\u5728\u7cfb\u7edf\u5916\u754c\u7684\u76d1\u7ba1\u8005\uff08\u88ab\u5916\u754c\u610f\u5916\u6355\u83b7\uff09\u3002\u8fd8\u6709\uff0c\u8fd9\u6837\u5c31\u4ea7\u751f\u4e86\u4e00\u79cd\u5bf9 actor \u5e94\u7528\uff08\u6216\u5176\u5b50\u6811\uff09\u81ea\u7136\u53c8\u5e72\u51c0\u7684\u5173\u95ed\u8fc7\u7a0b\u3002<\/p>\n<blockquote>\n<p><strong>\u8b66\u544a\uff1a<\/strong>\u7763\u5bfc\u6709\u5173\u7684\u7236\u5b50\u901a\u4fe1\u901a\u8fc7\u7279\u6b8a\u7684\u7cfb\u7edf\u6d88\u606f\u53d1\u751f\uff0c\u8fd9\u4e9b\u7cfb\u7edf\u6d88\u606f\u6709\u81ea\u5df1\u7684\u90ae\u7bb1\uff0c\u4e0e\u7528\u6237\u6d88\u606f\u9694\u79bb\u3002\u8fd9\u6697\u793a\u7740\u7763\u5bfc\u6709\u5173\u7684\u4e8b\u4ef6\u7684\u987a\u5e8f\u76f8\u5bf9\u4e8e\u666e\u901a\u6d88\u606f\u4e0d\u662f\u786e\u5b9a\u7684\u3002\u901a\u5e38\uff0c\u7528\u6237\u4e0d\u80fd\u5f71\u54cd\u666e\u901a\u6d88\u606f\u548c\u5931\u8d25\u901a\u77e5\u7684\u987a\u5e8f\u3002\u66f4\u591a\u7ec6\u8282\u89c1 <a href=\"#\">\u8ba8\u8bba\uff1a\u6d88\u606f\u987a\u5e8f<\/a> \u7ae0\u8282\u3002<\/p>\n<\/blockquote>\n<h2>\u9876\u7ea7\u7763\u5bfc\u8005<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"833\" height=\"833\" src=\"\/\/coderbee.net\/wp-content\/uploads\/2015\/01\/guardians.png\" alt=\"akka actor guardians\" class=\"alignnone size-medium wp-image-1172\" srcset=\"https:\/\/coderbee.net\/wp-content\/uploads\/2015\/01\/guardians.png 833w, https:\/\/coderbee.net\/wp-content\/uploads\/2015\/01\/guardians-150x150.png 150w, https:\/\/coderbee.net\/wp-content\/uploads\/2015\/01\/guardians-300x300.png 300w, https:\/\/coderbee.net\/wp-content\/uploads\/2015\/01\/guardians-624x624.png 624w\" sizes=\"(max-width: 833px) 100vw, 833px\" \/><\/p>\n<p>\u4e00\u4e2a actor \u7cfb\u7edf\u5728\u5b83\u542f\u52a8\u65f6\u521b\u5efa\u81f3\u5c11\u4e09\u4e2a actor\uff0c\u5982\u4e0a\u56fe\u6240\u793a\u3002\u5173\u4e8e actor \u8def\u5f84\u7684\u66f4\u591a\u4fe1\u606f\u89c1 <a href=\"#\">Actor \u8def\u5f84\u7684\u9876\u7ea7\u57df<\/a>\u3002<\/p>\n<h3><code>\/user<\/code>\uff1a\u5b88\u62a4\u8005 Actor<\/h3>\n<p>\u8fd9\u4e2a actor \u53ef\u80fd\u662f\u4e0e\u6240\u6709\u7528\u6237\u521b\u5efa\u7684 actor \u4ea4\u4e92\u6700\u591a\u7684\uff0c\u8fd9\u4e2a\u5b88\u62a4\u8005\u547d\u540d\u4e3a <code>\"\/user\"<\/code>\u3002\u7528 <code>system.actorOf()<\/code> \u521b\u5efa\u7684 actors \u90fd\u662f\u8fd9\u4e2a actor \u7684\u5b69\u5b50\u3002\u8fd9\u610f\u5473\u7740\u5f53\u8fd9\u4e2a\u5b88\u62a4\u8005\u7ec8\u6b62\u65f6\uff0c\u8fd9\u4e2a\u7cfb\u7edf\u91cc\u7684\u6240\u6709\u666e\u901a actor \u4e5f\u5c06\u88ab\u5173\u95ed\u3002\u8fd9\u4e5f\u610f\u5473\u7740\uff0c\u8fd9\u4e2a\u5b88\u62a4\u8005\u7684\u7763\u5bfc\u7b56\u7565\u51b3\u5b9a\u4e86\u9876\u7ea7\u666e\u901a actors \u5c06\u88ab\u5982\u4f55\u7763\u5bfc\u3002\u4ece Akka 2.1 \u5f00\u59cb\uff0c\u8fd9\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e <code>akka.actor.guardian-supervisor-strategy<\/code> \u6765\u914d\u7f6e\uff08\u7763\u5bfc\u7b56\u7565\uff09\uff0c\u5b83\u63a5\u53d7\u4e00\u4e2a <code>SupervisorStrategyConfigure<\/code> \u7684\u5b8c\u5168\u7c7b\u8def\u5f84\u540d\u3002\u5f53\u8fd9\u4e2a\u5b88\u62a4\u8005\u5411\u4e0a\u629b\u51fa\u5931\u8d25\u65f6\uff0c\u6839\u5b88\u62a4\u8005\u8d1f\u8d23\u7ec8\u6b62\u8fd9\u4e2a\u5b88\u62a4\u8005\uff0c\u8fd9\u5c06\u5bfc\u81f4\u6574\u4e2a actor \u7cfb\u7edf\u5173\u95ed\u3002<\/p>\n<h3><code>\/system<\/code>\uff1a\u7cfb\u7edf\u5b88\u62a4\u8005<\/h3>\n<p>\u5f15\u5165\u8fd9\u4e2a\u7279\u6b8a\u7684\u5b88\u62a4\u8005\u662f\u4e3a\u4e86\u8fbe\u5230\u6709\u5e8f\u5730\u5173\u95ed\uff0c\u5f53\u6240\u6709\u666e\u901a actor \u7ec8\u6b62\u65f6\u65e5\u5fd7\u8bb0\u5f55\u5269\u4f59\u5b58\u6d3b\u7684\uff0c\u867d\u7136\u65e5\u5fd7\u8bb0\u5f55\u672c\u8eab\u4e5f\u662f\u7528 actors \u5b9e\u73b0\u7684\u3002\u8fd9\u662f\u901a\u8fc7\u8ba9\u7cfb\u7edf\u5b88\u62a4\u8005\u76d1\u63a7\u7528\u6237\u5b88\u62a4\u8005\u5e76\u5728\u63a5\u6536\u5230 <code>Terminated<\/code> \u6d88\u606f\u65f6\u521d\u59cb\u5316\u5b83\u81ea\u5df1\u7684\u5173\u95ed\u6d41\u7a0b\u6765\u5b9e\u73b0\u7684\u3002\u9876\u7ea7\u7684\u7cfb\u7edf actors \u7528\u5728\u9047\u5230\u9664 <code>ActorInitializationException<\/code> \u548c <code>ActorKilledException<\/code> \u5916\u7684\u6240\u6709 <code>Exception<\/code> \u65f6\u65e0\u9650\u5236\u5730\u91cd\u542f\u7684\u7b56\u7565\u6765\u7763\u5bfc\u7684\uff0c\u8fd9\u5c06\u7ec8\u6b62\u6240\u6709\u7684\u5b69\u5b50\u3002\u6240\u6709\u5176\u4ed6 throwables \u5c06\u5411\u4e0a\u629b\u51fa\uff0c\u5c06\u5173\u95ed\u6574\u4e2a actor \u7cfb\u7edf\u3002<\/p>\n<h3><code>\/<\/code>\uff1a\u6839\u5b88\u62a4\u8005<\/h3>\n<p>\u8fd9\u4e2a\u6839\u5b88\u62a4\u8005\u662f\u6240\u6709\u88ab\u79f0\u4e3a\u201c\u9876\u7ea7\u201d actor \u7684\u7236\u4eb2\uff0c\u7528 <code>SupervisorStrategy.stoppingStrategy<\/code> \u7763\u5bfc\u5728 <a href=\"#\">Actor \u8def\u5f84\u7684\u9876\u7ea7\u57df<\/a> \u91cc\u63d0\u5230\u7684\u6240\u6709\u7279\u6b8a actors\uff0c\u5b83\u7684\u76ee\u7684\u662f\u5728\u9047\u5230\u4efb\u4f55\u7c7b\u578b\u7684 <code>Exception<\/code> \u65f6\u7ec8\u6b62\u5b69\u5b50\u3002\u6240\u6709\u7684 throwables \u5c06\u5411\u4e0a\u629b\u51fa&#8212;-\u4f46\u7ed9\u8c01\uff1f\u56e0\u4e3a\u6bcf\u4e2a\u5b9e\u9645\u7684 actor \u6709\u4e2a\u7763\u5bfc\u8005\uff0c\u6839\u5b88\u62a4\u8005\u7684\u7763\u5bfc\u8005\u4e0d\u53ef\u80fd\u662f\u4e2a\u5b9e\u9645\u7684 actor\u3002\u8fd9\u610f\u5473\u7740\u5b83\u662f\u201c\u6ce1\u6cab\u4e4b\u5916\u201d\u7684\uff0c\u5b83\u4e5f\u88ab\u79f0\u4e3a\u201c\u6ce1\u6cab\u884c\u8005\u201d\uff08\u8bd1\u6ce8\uff1a\u6709\u4eba\u628a\u5b87\u5b99\u6bd4\u55bb\u4e3a\u4e00\u4e2a\u6ce1\u6cab\uff09\u3002\u8fd9\u662f\u4e00\u4e2a\u5408\u6210\u7684 <code>ActorRef<\/code>\uff0c\u5b83\u7684\u4f5c\u7528\u662f\u4e00\u65e6\u51fa\u73b0\u95ee\u9898\u7684\u5f81\u5146\u5c31\u505c\u6b62\u5b83\u7684\u5b69\u5b50\uff0c\u4e00\u65e6\u6839\u5b88\u62a4\u8005\u5b8c\u5168\u7ec8\u6b62\uff08\u6240\u6709\u5b69\u5b50\u9012\u5f52\u5730\u505c\u6b62\u4e86\uff09\u5c31\u5c3d\u5feb\u8bbe\u7f6e actor \u7cfb\u7edf\u7684 <code>isTerminated<\/code> \u72b6\u6001\u4e3a <code>true<\/code>\u3002<\/p>\n<h2>\u91cd\u542f\u610f\u5473\u7740\u4ec0\u4e48<\/h2>\n<p>\u5f53\u4e00\u4e2a actor \u5904\u7406\u67d0\u4e2a\u7279\u5b9a\u7684\u6d88\u606f\u5931\u8d25\u65f6\uff0c\u5bfc\u81f4\u5931\u8d25\u7684\u539f\u56e0\u5206\u4e3a\u4e09\u7c7b\uff1a<\/p>\n<ul>\n<li>\u5bf9\u63a5\u6536\u5230\u7684\u7279\u5b9a\u6d88\u606f\u51fa\u73b0\u7cfb\u7edf\uff08\u5982\u7f16\u7a0b\uff09\u9519\u8bef<\/li>\n<li>\u5904\u7406\u6d88\u606f\u4f7f\u7528\u7684\u5916\u90e8\u8d44\u6e90\uff08\u4e34\u65f6\uff09\u5931\u8d25<\/li>\n<li>actor \u5185\u90e8\u72b6\u6001\u88ab\u7834\u574f<\/li>\n<\/ul>\n<p>\u9664\u975e\u5931\u8d25\u662f\u660e\u786e\u5730\u8bc6\u522b\u4e86\uff0c\u5426\u5219\u7b2c\u4e09\u79cd\u539f\u56e0\u4e0d\u80fd\u88ab\u6392\u9664\uff0c\u8fd9\u5f15\u5411\u5185\u90e8\u72b6\u6001\u9700\u8981\u88ab\u6e05\u9664\u7684\u7ed3\u8bba\u3002\u5982\u679c\u7763\u5bfc\u8005\u51b3\u5b9a\u5b83\u7684\u5176\u4ed6\u5b69\u5b50\u6216\u5b83\u81ea\u5df1\u6ca1\u6709\u88ab\u7834\u574f\u5f71\u54cd\uff08\u6bd4\u5982\u56e0\u4e3a\u6e05\u695a\u7a0b\u5e8f\u7684 error kernal pattern\uff09\uff0c\u90a3\u4e48\u6700\u597d\u91cd\u542f\u8fd9\u4e2a\u5b69\u5b50\u3002\u8fd9\u5f15\u51fa\u4e86\u901a\u8fc7\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5e95\u5c42 <code>Actor<\/code> \u5b9e\u4f8b\u6765\u66ff\u6362\u5b69\u5b50\u7684 <code>ActorRef<\/code> \u5185\u90e8\u90a3\u4e2a\u5931\u8d25\u4e86\u7684\u5b9e\u4f8b\uff0c\u80fd\u8fd9\u6837\u505a\u662f\u7528\u7279\u6b8a\u7684\u5f15\u7528\u6765\u5c01\u88c5 actors \u7684\u4e00\u4e2a\u7406\u7531\u3002\u65b0\u7684 actor \u7ee7\u7eed\u5904\u7406\u5b83\u7684\u90ae\u7bb1\uff0c\u610f\u5473\u7740\u91cd\u542f\u5728 actor \u81ea\u8eab\u5916\u90e8\u662f\u4e0d\u53ef\u89c1\u7684\uff0c\u503c\u5f97\u6ce8\u610f\u7684\u662f\u5bfc\u81f4\u5931\u8d25\u7684\u90a3\u4e2a\u6d88\u606f\u662f\u4e0d\u4f1a\u518d\u6b21\u5904\u7406\u4e86\u3002<\/p>\n<p>\u91cd\u542f\u8fc7\u7a0b\u4e2d\u4e8b\u4ef6\u7684\u7cbe\u786e\u987a\u5e8f\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li>\u6682\u505c actor\uff08\u8fd9\u610f\u5473\u7740\u5b83\u5c06\u4e0d\u518d\u5904\u7406\u666e\u901a\u6d88\u606f\u76f4\u5230\u88ab\u6062\u590d\uff09\uff0c\u9012\u5f52\u5730\u6682\u505c\u6240\u6709\u5b69\u5b50<\/li>\n<li>\u8c03\u7528\u65e7\u5b9e\u4f8b\u7684 <code>preRestart<\/code> \u94a9\u5b50\uff08\u9ed8\u8ba4\u662f\u53d1\u9001\u7ec8\u6b62\u8bf7\u6c42\u7ed9\u6240\u6709\u5b69\u5b50\u5e76\u8c03\u7528 <code>postStop<\/code>\uff09<\/li>\n<li>\u7b49\u5f85\u6240\u6709\u5728 <code>preRestart<\/code> \u8fc7\u7a0b\u4e2d\u5904\u4e8e\u88ab\u8981\u6c42\u7ec8\u6b62\uff08\u7528 <code>context.stop()<\/code>\uff09\u7684\u5b69\u5b50\u771f\u6b63\u5730\u7ec8\u6b62\uff0c\u8fd9\u50cf\u6240\u6709\u7684 actor \u64cd\u4f5c\u4e00\u6837\u4e0d\u662f\u963b\u585e\u7684\uff0c\u6700\u540e\u4e00\u4e2a\u88ab\u6740\u6b7b\u5b69\u5b50\u7684\u7ec8\u6b62\u901a\u77e5\u5f71\u54cd\u7ee7\u7eed\u8fdb\u5165\u4e0b\u4e00\u6b65<\/li>\n<li>\u518d\u6b21\u8c03\u7528\u6700\u521d\u63d0\u4f9b\u7684\u5de5\u5382\u521b\u5efa\u4e00\u4e2a\u65b0\u7684 actor \u5b9e\u4f8b<\/li>\n<li>\u8c03\u7528\u65b0\u5b9e\u4f8b\u7684 <code>postRestart<\/code> \uff08\u9ed8\u8ba4\u4e5f\u4f1a\u8c03\u7528 <code>preStart<\/code>\uff09\u94a9\u5b50<\/li>\n<li>\u53d1\u9001\u91cd\u542f\u8981\u6c42\u7ed9\u6240\u6709\u5728\u6b65\u9aa4 3 \u6740\u6b7b\u7684\u5b69\u5b50\uff0c\u91cd\u542f\u5b69\u5b50\u5c06\u9075\u5faa\u540c\u6837\u7684\u9012\u5f52\u6b65\u9aa4\uff0c\u4ece\u6b65\u9aa4 2 \u5f00\u59cb<\/li>\n<li>\u6062\u590d\u6267\u884c actor<\/li>\n<\/ol>\n<h2>\u751f\u547d\u5468\u671f\u76d1\u63a7\u610f\u5473\u7740\u4ec0\u4e48<\/h2>\n<blockquote>\n<p><strong>\u6ce8\u610f\uff1a<\/strong>\u751f\u547d\u5468\u671f\u76d1\u63a7\u5728 Akka \u91cc\u901a\u5e38\u610f\u5473\u7740 <code>DeathWatch<\/code>\u3002<\/p>\n<\/blockquote>\n<p>\u76f8\u6bd4\u4e8e\u4e0a\u9762\u63cf\u8ff0\u7684\u7236\u4e0e\u5b50\u4e4b\u95f4\u7684\u7279\u6b8a\u5173\u7cfb\uff0c\u6bcf\u4e2a actor \u53ef\u4ee5\u76d1\u63a7\u4efb\u610f\u4e00\u4e2a actor\u3002\u56e0\u4e3a\u53d7\u7763\u5bfc\u7684\u5f71\u54cd\uff0cactors \u6446\u8131\u4e86\u521b\u5efa\u5b8c\u5168\u5b58\u6d3b\u548c\u91cd\u542f\u5bf9\u5916\u90e8\u662f\u4e0d\u53ef\u89c1\u7684\uff0c\u552f\u4e00\u53ef\u76d1\u63a7\u7684\u72b6\u6001\u6539\u53d8\u662f\u4ece\u5b58\u6d3b\u5230\u6b7b\u4ea1\u7684\u8f6c\u53d8\u3002\u76d1\u63a7\u56e0\u6b64\u7528\u4e8e\u628a\u4e00\u4e2a actor \u7ed1\u5b9a\u5230\u53e6\u4e00\u4e2a\u4e0a\uff0c\u8fd9\u6837\u5b83\u53ef\u4ee5\u5bf9\u53e6\u4e00\u4e2a actor \u7684\u7ec8\u6b62\u505a\u51fa\u53cd\u5e94\uff0c\u76f8\u5bf9\u7684\u662f\uff0c\u7763\u5bfc\u662f\u5bf9\u5931\u8d25\u505a\u51fa\u53cd\u5e94\u3002<\/p>\n<p>\u751f\u547d\u5468\u671f\u76d1\u63a7\u901a\u8fc7\u76d1\u63a7\u8005 actor \u63a5\u6536\u4e00\u4e2a <code>Terminated<\/code> \u6d88\u606f\u6765\u5b9e\u73b0\uff0c\u5982\u679c\u6ca1\u6709\u5176\u4ed6\u5904\u7406\uff0c\u9ed8\u8ba4\u7684\u884c\u4e3a\u662f\u629b\u51fa\u4e00\u4e2a\u7279\u6b8a\u7684 <code>DeathPactException<\/code> \u3002\u4e3a\u4e86\u5f00\u59cb\u76d1\u542c <code>Terminated<\/code> \u6d88\u606f\uff0c\u8c03\u7528 <code>ActorContext.watch(targetActorRef)<\/code>  \u3002\u4e3a\u4e86\u505c\u6b62\u76d1\u542c\uff0c\u8c03\u7528 <code>ActorContext.unwatch(targetActorRef)<\/code>\u3002\u4e00\u4e2a\u91cd\u8981\u7684\u6027\u8d28\u662f\uff0c\u6d88\u606f\u4f20\u9012\u4e0e\u76d1\u542c\u8bf7\u6c42\u548c\u76ee\u6807\u7ec8\u6b62\u53d1\u751f\u4e4b\u95f4\u7684\u987a\u5e8f\u65e0\u5173\uff0c\u4f8b\u5982\uff0c\u5373\u4f7f\u6ce8\u518c\uff08\u76d1\u542c\uff09\u65f6\u76ee\u6807\u5df2\u7ecf\u6b7b\u4ea1\uff0c\u4f60\u4ecd\u7136\u53ef\u4ee5\u6536\u5230\u6d88\u606f\u3002<\/p>\n<p>\u76d1\u63a7\u5728\u7763\u5bfc\u8005\u4e0d\u80fd\u7b80\u5355\u5730\u91cd\u542f\u5b83\u7684\u5b69\u5b50\u3001\u5fc5\u987b\u7ec8\u6b62\u65f6\u7279\u522b\u6709\u7528\uff0c\u4f8b\u5982\uff0c\u5728 actor \u521d\u59cb\u5316\u65f6\u51fa\u73b0\u9519\u8bef\u3002\u5728\u90a3\u79cd\u60c5\u51b5\u4e0b\uff0c\u5e94\u8be5\u76d1\u63a7\u90a3\u4e9b\u5b69\u5b50\u5e76\u91cd\u65b0\u521b\u5efa\u5b83\u4eec\u6216\u8c03\u5ea6\uff08\u7236 actor\uff09\u5b83\u81ea\u5df1\u53bb\u7a0d\u540e\u91cd\u8bd5\u3002<\/p>\n<p>\u53e6\u4e00\u4e2a\u5e38\u89c1\u7528\u4f8b\u662f\u4e00\u4e2a actor \u9700\u8981\u5931\u8d25\uff0c\u5982\u679c\u7f3a\u5c11\u67d0\u4e2a\u5916\u90e8\u8d44\u6e90\uff0c\u53ef\u80fd\u662f\u5b83\u81ea\u5df1\u7684\u5b69\u5b50\u3002\u5982\u679c\u6709\u4e2a\u7b2c\u4e09\u65b9\u901a\u8fc7 <code>system.stop(child)<\/code>  \u6216\u53d1\u9001\u4e00\u4e2a <code>PoisonPill<\/code> \u6d88\u606f\u6765\u7ec8\u6b62\u4e86\u4e00\u4e2a\u5b69\u5b50\uff0c\u7763\u5bfc\u8005\u53ef\u80fd\u4f1a\u53d7\u5230\u5f71\u54cd\u3002<\/p>\n<h2>One-For-One \u7b56\u7565 VS.  All-For-One \u7b56\u7565<\/h2>\n<p>Akka \u63d0\u4f9b\u4e86\u4e24\u79cd\u7763\u5bfc\u7b56\u7565\uff1a <code>OneForOneStrategy<\/code> \u548c <code>AllForOneStrategy<\/code>\u3002\u4e24\u8005\u90fd\u53ef\u4ee5\u914d\u7f6e\u5f02\u5e38\u7c7b\u578b\u5230\u7763\u5bfc\u6307\u4ee4\uff08\u89c1 <a href=\"#supervision\">\u524d\u9762<\/a>\uff09\u7684\u6620\u5c04\uff0c\u4e14\u9650\u5236\u4e86\u4e00\u4e2a\u5b69\u5b50\u5728\u7ec8\u6b62\u524d\u53ef\u4ee5\u5141\u8bb8\u591a\u4e45\u5931\u8d25\u4e00\u6b21\u3002\u4e24\u8005\u4e4b\u95f4\u7684\u533a\u522b\u662f\uff0c\u524d\u8005\u53ea\u5728\u5931\u8d25\u4e86\u7684\u5b69\u5b50\u4e0a\u5e94\u7528\u83b7\u5f97\u7684\u6307\u4ee4\uff0c\u540e\u8005\u8fd8\u4f1a\u5e94\u7528\u5728\u6240\u6709\uff08\u5931\u8d25actor\u7684\uff09\u5144\u5f1f\u4e0a\u3002\u901a\u5e38\uff0c\u4f60\u5e94\u8be5\u4f7f\u7528 <code>OneForOneStrategy<\/code> \uff0c\u5982\u679c\u6ca1\u6709\u663e\u5f0f\u6307\u5b9a\uff0c\u8fd9\u4e5f\u9ed8\u8ba4\u7684\u3002<\/p>\n<p><code>AllForOneStrategy<\/code> \u53ef\u7528\u5728\u5168\u4f53\u5b69\u5b50\u4e4b\u95f4\u6709\u7d27\u5bc6\u4f9d\u8d56\u7684\u573a\u666f\uff0c\u4e00\u4e2a\u5b69\u5b50\u5931\u8d25\u4e86\u4f1a\u5f71\u54cd\u5176\u4ed6\u7684\uff0c\u4f8b\u5982\uff0c\u5b83\u4eec\u662f\u5bc6\u4e0d\u53ef\u5206\u7684\u3002\u56e0\u4e3a\u91cd\u542f\u4e0d\u4f1a\u6e05\u7a7a\u90ae\u7bb1\uff0c\u51fa\u73b0\u5931\u8d25\u65f6\u6700\u597d\u662f\u7ec8\u6b62\u5b69\u5b50\uff0c\u4ece\u7763\u5bfc\u8005\uff08\u901a\u8fc7\u76d1\u63a7\u5b69\u5b50\u7684\u751f\u547d\u5468\u671f\uff09\u663e\u5f0f\u5730\u91cd\u65b0\u521b\u5efa\u5b83\u4eec\uff1b\u5426\u5219\u4f60\u9700\u8981\u786e\u4fdd\u4efb\u4f55\u4e00\u4e2a actor \u5728\u91cd\u542f\u524d\u63a5\u6536\u5230\u6d88\u606f\u5e76\u5b58\u5165\u90ae\u7bb1\uff0c\u540e\u9762\u7ee7\u7eed\u5904\u7406\u8fd9\u4e2a\u6d88\u606f\u662f\u6ca1\u6709\u95ee\u9898\u7684\u3002<\/p>\n<p>\u901a\u5e38\uff0c\u5728 all-for-one \u7b56\u7565\u91cc\uff0c\u505c\u6b62\u4e00\u4e2a\u5b69\u5b50\uff08\u4f8b\u5982\u4e0d\u662f\u4e3a\u4e86\u54cd\u5e94\u5931\u8d25\uff09\u662f\u4e0d\u4f1a\u81ea\u52a8\u7ec8\u6b62\u5176\u4ed6\u5b69\u5b50\u7684\uff1b\u901a\u8fc7\u76d1\u63a7\u5b83\u4eec\u7684\u751f\u547d\u5468\u671f\u662f\u5f88\u5bb9\u6613\u505a\u5230\u7684\uff1a\u5982\u679c\u7763\u5bfc\u8005\u4e0d\u5904\u7406 <code>Terminated<\/code>  \u6d88\u606f\uff0c\u5c06\u629b\u51fa <code>DeathPactException<\/code> \uff0c\u8fd9\uff08\u53d6\u51b3\u4e8e\u5b83\u7684\u7763\u5bfc\u8005\uff09\u4f1a\u91cd\u542f\u5b83\uff0c\u9ed8\u8ba4\u7684 <code>preRestart<\/code>  \u884c\u4e3a\u4f1a\u7ec8\u6b62\u6240\u6709\u7684\u5b69\u5b50\u3002\u5f53\u7136\uff0c\u8fd9\u4e5f\u53ef\u4ee5\u663e\u793a\u5730\u5904\u7406\u3002<\/p>\n<p>\u8bf7\u6ce8\u610f\uff0c\u4ece\u4e00\u4e2a all-for-one \u7684\u7763\u5bfc\u8005\u521b\u5efa\u4e00\u6b21\u6027\u7684 actor \u4f7f\u5931\u8d25\u5347\u7ea7\uff0c\u4e34\u65f6\u7684 actor \u5c06\u5f71\u54cd\u6240\u6709\u6c38\u4e45\u7684 actors\u3002\u5982\u679c\u8fd9\u4e0d\u662f\u671f\u671b\u7684\uff0c\u8bbe\u7f6e\u4e00\u4e2a\u4e2d\u95f4\u7684\u7763\u5bfc\u8005\uff1b\u8fd9\u53ef\u4ee5\u901a\u8fc7\u58f0\u660e\u4e00\u4e2a worker \u6570\u91cf\u4e3a 1 \u7684 router \u6765\u8f7b\u6613\u505a\u5230\uff0c\u89c1 <a href=\"#\">\u8def\u7531-scala<\/a> \u6216 <a href=\"#\">\u8def\u7531-java<\/a>\u3002<\/p>\n<hr\/>\n<p>\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u5fae\u4fe1\u516c\u4f17\u53f7: <strong>coderbee\u7b14\u8bb0<\/strong>\uff0c\u53ef\u4ee5\u66f4\u53ca\u65f6\u56de\u590d\u4f60\u7684\u8ba8\u8bba\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"258\" height=\"258\" src=\"https:\/\/coderbee.net\/wp-content\/uploads\/2019\/01\/coderbee-note.jpg\" class=\"alignnone size-full wp-image-1707\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7ffb\u8bd1\u81ea\uff1ahttp:\/\/doc.akka.io\/docs\/akka\/2.3.8\/g &hellip; <a href=\"https:\/\/coderbee.net\/index.php\/akka\/20150203\/1169\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[183],"tags":[235],"_links":{"self":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/1169"}],"collection":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/comments?post=1169"}],"version-history":[{"count":4,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/1169\/revisions"}],"predecessor-version":[{"id":1175,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/posts\/1169\/revisions\/1175"}],"wp:attachment":[{"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/media?parent=1169"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/categories?post=1169"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coderbee.net\/index.php\/wp-json\/wp\/v2\/tags?post=1169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}