{"id":179368,"date":"2024-11-09T01:14:24","date_gmt":"2024-11-08T17:14:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179368\/"},"modified":"2024-11-09T01:14:25","modified_gmt":"2024-11-08T17:14:25","slug":"%e5%a6%82%e4%bd%95%e5%84%aa%e5%8c%96-db2-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd%e5%8f%83%e6%95%b8%ef%bc%9f-db2-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd%e5%8f%83%e6%95%b8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179368\/","title":{"rendered":"\u5982\u4f55\u512a\u5316 DB2 \u6578\u64da\u5eab\u6027\u80fd\u53c3\u6578\uff1f (db2 \u6578\u64da\u5eab\u6027\u80fd\u53c3\u6578)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%84%aa%e5%8c%96-db2-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd%e5%8f%83%e6%95%b8%ef%bc%9f-FvyMGbbpBq\">\u5982\u4f55\u512a\u5316 DB2 \u6578\u64da\u5eab\u6027\u80fd\u53c3\u6578\uff1f<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u5c0d\u65bc\u4f01\u696d\u7684\u904b\u71df\u81f3\u95dc\u91cd\u8981\u3002IBM \u7684 DB2 \u6578\u64da\u5eab\u7cfb\u7d71\u4ee5\u5176\u9ad8\u6548\u80fd\u548c\u53ef\u9760\u6027\u800c\u805e\u540d\uff0c\u4f46\u8981\u5145\u5206\u767c\u63ee\u5176\u6f5b\u529b\uff0c\u512a\u5316\u6027\u80fd\u53c3\u6578\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u512a\u5316 DB2 \u6578\u64da\u5eab\u7684\u6027\u80fd\u53c3\u6578\uff0c\u4ee5\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u548c\u6574\u9ad4\u7cfb\u7d71\u6548\u7387\u3002<\/p>\n<h2 id=\"1-%e7%90%86%e8%a7%a3-db2-%e6%80%a7%e8%83%bd%e5%8f%83%e6%95%b8-FvyMGbbpBq\">1. \u7406\u89e3 DB2 \u6027\u80fd\u53c3\u6578<\/h2>\n<p>DB2 \u6578\u64da\u5eab\u7684\u6027\u80fd\u53c3\u6578\u4e3b\u8981\u5305\u62ec\u5167\u5b58\u914d\u7f6e\u3001I\/O \u8a2d\u7f6e\u3001\u67e5\u8a62\u512a\u5316\u5668\u9078\u9805\u7b49\u3002\u9019\u4e9b\u53c3\u6578\u7684\u8abf\u6574\u53ef\u4ee5\u986f\u8457\u5f71\u97ff\u6578\u64da\u5eab\u7684\u6027\u80fd\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u95dc\u9375\u7684\u6027\u80fd\u53c3\u6578\uff1a<\/p>\n<ul>\n<li><strong>\u5167\u5b58\u914d\u7f6e\uff1a<\/strong>DB2 \u4f7f\u7528\u591a\u7a2e\u5167\u5b58\u5340\u57df\u4f86\u7ba1\u7406\u6578\u64da\u548c\u67e5\u8a62\u3002\u4e3b\u8981\u7684\u5167\u5b58\u53c3\u6578\u5305\u62ec <code>DBHEAP<\/code>\u3001<code>SORTHEAP<\/code> \u548c <code>LOGFILSIZ<\/code>\u3002<\/li>\n<li><strong>I\/O \u8a2d\u7f6e\uff1a<\/strong>\u5305\u62ec <code>NUM_IOSERVERS<\/code> \u548c <code>BUFFERPOOL<\/code> \u7684\u914d\u7f6e\uff0c\u9019\u4e9b\u8a2d\u7f6e\u5f71\u97ff\u6578\u64da\u7684\u8b80\u53d6\u548c\u5beb\u5165\u901f\u5ea6\u3002<\/li>\n<li><strong>\u67e5\u8a62\u512a\u5316\u5668\uff1a<\/strong>DB2 \u7684\u67e5\u8a62\u512a\u5316\u5668\u6c7a\u5b9a\u4e86\u5982\u4f55\u57f7\u884c SQL \u67e5\u8a62\uff0c\u8abf\u6574\u512a\u5316\u5668\u7684\u53c3\u6578\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"2-%e5%85%a7%e5%ad%98%e9%85%8d%e7%bd%ae%e7%9a%84%e5%84%aa%e5%8c%96-FvyMGbbpBq\">2. \u5167\u5b58\u914d\u7f6e\u7684\u512a\u5316<\/h2>\n<p>\u5167\u5b58\u662f\u5f71\u97ff DB2 \u6027\u80fd\u7684\u95dc\u9375\u56e0\u7d20\u4e4b\u4e00\u3002\u9069\u7576\u7684\u5167\u5b58\u914d\u7f6e\u53ef\u4ee5\u6e1b\u5c11\u78c1\u789f I\/O\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u901f\u5ea6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u512a\u5316\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>DBHEAP\uff1a<\/strong>\u9019\u500b\u53c3\u6578\u63a7\u5236 DB2 \u7684\u7e3d\u5167\u5b58\u4f7f\u7528\u91cf\u3002\u6839\u64da\u7cfb\u7d71\u7684\u53ef\u7528\u5167\u5b58\uff0c\u9069\u7576\u589e\u52a0 <code>DBHEAP<\/code> \u7684\u503c\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002\u4e00\u822c\u5efa\u8b70\u8a2d\u7f6e\u70ba\u53ef\u7528\u5167\u5b58\u7684 50% \u5230 75%\u3002<\/li>\n<li><strong>SORTHEAP\uff1a<\/strong>\u9019\u500b\u53c3\u6578\u5f71\u97ff\u6392\u5e8f\u64cd\u4f5c\u7684\u5167\u5b58\u4f7f\u7528\u3002\u5c0d\u65bc\u9700\u8981\u5927\u91cf\u6392\u5e8f\u7684\u67e5\u8a62\uff0c\u589e\u52a0 <code>SORTHEAP<\/code> \u7684\u503c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<li><strong>LOGFILSIZ\uff1a<\/strong>\u9019\u500b\u53c3\u6578\u63a7\u5236\u65e5\u8a8c\u6587\u4ef6\u7684\u5927\u5c0f\u3002\u9069\u7576\u589e\u52a0\u65e5\u8a8c\u6587\u4ef6\u7684\u5927\u5c0f\u53ef\u4ee5\u6e1b\u5c11\u65e5\u8a8c\u5beb\u5165\u7684\u983b\u7387\uff0c\u5f9e\u800c\u63d0\u9ad8\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"3-i-o-%e8%a8%ad%e7%bd%ae%e7%9a%84%e5%84%aa%e5%8c%96-FvyMGbbpBq\">3. I\/O \u8a2d\u7f6e\u7684\u512a\u5316<\/h2>\n<p>I\/O \u6027\u80fd\u5c0d\u65bc\u6578\u64da\u5eab\u7684\u6574\u9ad4\u6027\u80fd\u81f3\u95dc\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u512a\u5316 I\/O \u8a2d\u7f6e\u7684\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>NUM_IOSERVERS\uff1a<\/strong>\u9019\u500b\u53c3\u6578\u63a7\u5236 I\/O \u670d\u52d9\u5668\u7684\u6578\u91cf\u3002\u6839\u64da\u7cfb\u7d71\u7684\u8ca0\u8f09\uff0c\u9069\u7576\u589e\u52a0 I\/O \u670d\u52d9\u5668\u7684\u6578\u91cf\u53ef\u4ee5\u63d0\u9ad8 I\/O \u6027\u80fd\u3002<\/li>\n<li><strong>BUFFERPOOL\uff1a<\/strong>\u9019\u500b\u53c3\u6578\u63a7\u5236\u7de9\u885d\u6c60\u7684\u5927\u5c0f\u3002\u589e\u52a0\u7de9\u885d\u6c60\u7684\u5927\u5c0f\u53ef\u4ee5\u6e1b\u5c11\u78c1\u789f I\/O\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u5efa\u8b70\u6839\u64da\u6578\u64da\u5eab\u7684\u5927\u5c0f\u548c\u67e5\u8a62\u6a21\u5f0f\u9032\u884c\u8abf\u6574\u3002<\/li>\n<\/ul>\n<h2 id=\"4-%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96%e5%99%a8%e7%9a%84%e8%aa%bf%e6%95%b4-FvyMGbbpBq\">4. \u67e5\u8a62\u512a\u5316\u5668\u7684\u8abf\u6574<\/h2>\n<p>DB2 \u7684\u67e5\u8a62\u512a\u5316\u5668\u662f\u6c7a\u5b9a SQL \u67e5\u8a62\u57f7\u884c\u8a08\u5283\u7684\u6838\u5fc3\u7d44\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u512a\u5316\u67e5\u8a62\u6027\u80fd\u7684\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u7d71\u8a08\u4fe1\u606f\uff1a<\/strong>\u5b9a\u671f\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\u53ef\u4ee5\u5e6b\u52a9\u512a\u5316\u5668\u751f\u6210\u66f4\u6709\u6548\u7684\u57f7\u884c\u8a08\u5283\u3002\u4f7f\u7528 <code>RUNSTATS<\/code> \u547d\u4ee4\u4f86\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\u3002<\/li>\n<li><strong>\u67e5\u8a62\u91cd\u5beb\uff1a<\/strong>\u5c0d\u65bc\u8907\u96dc\u7684\u67e5\u8a62\uff0c\u8003\u616e\u91cd\u5beb\u67e5\u8a62\u4ee5\u63d0\u9ad8\u6027\u80fd\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u806f\u63a5\u800c\u4e0d\u662f\u5b50\u67e5\u8a62\uff0c\u6216\u4f7f\u7528\u7d22\u5f15\u4f86\u52a0\u901f\u67e5\u8a62\u3002<\/li>\n<\/ul>\n<h2 id=\"5-%e7%9b%a3%e6%8e%a7%e5%92%8c%e8%aa%bf%e6%95%b4-FvyMGbbpBq\">5. \u76e3\u63a7\u548c\u8abf\u6574<\/h2>\n<p>\u512a\u5316 DB2 \u6027\u80fd\u662f\u4e00\u500b\u6301\u7e8c\u7684\u904e\u7a0b\u3002\u4f7f\u7528 DB2 \u63d0\u4f9b\u7684\u76e3\u63a7\u5de5\u5177\uff0c\u5982 <code>db2top<\/code> \u548c <code>db2exfmt<\/code>\uff0c\u53ef\u4ee5\u5e6b\u52a9\u8b58\u5225\u6027\u80fd\u74f6\u9838\u4e26\u9032\u884c\u76f8\u61c9\u7684\u8abf\u6574\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-FvyMGbbpBq\">\u7e3d\u7d50<\/h2>\n<p>\u512a\u5316 DB2 \u6578\u64da\u5eab\u6027\u80fd\u53c3\u6578\u662f\u4e00\u9805\u91cd\u8981\u7684\u4efb\u52d9\uff0c\u6d89\u53ca\u5167\u5b58\u914d\u7f6e\u3001I\/O \u8a2d\u7f6e\u548c\u67e5\u8a62\u512a\u5316\u7b49\u591a\u500b\u65b9\u9762\u3002\u901a\u904e\u5b9a\u671f\u76e3\u63a7\u548c\u8abf\u6574\u9019\u4e9b\u53c3\u6578\uff0c\u4f01\u696d\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u5f9e\u800c\u652f\u6301\u696d\u52d9\u7684\u589e\u9577\u548c\u767c\u5c55\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u512a\u5316 DB2 \u6578\u64da\u5eab\u6027\u80fd\u53c3\u6578\uff0c\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\uff0c\u6e1b\u5c11\u5ef6\u9072\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\u7684\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-179368","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179368","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=179368"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179368\/revisions"}],"predecessor-version":[{"id":179369,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179368\/revisions\/179369"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179368"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179368"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179368"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}