{"id":820,"date":"2012-05-07T23:44:30","date_gmt":"2012-05-07T15:44:30","guid":{"rendered":"https:\/\/yangtingkun.net\/?p=820"},"modified":"2012-05-11T11:46:05","modified_gmt":"2012-05-11T03:46:05","slug":"%e5%ae%89%e8%a3%85oracle%e6%97%b6%e5%9c%a8linux%e4%b8%8a%e8%ae%be%e7%bd%ae%e5%86%85%e6%a0%b8%e5%8f%82%e6%95%b0%e7%9a%84%e5%90%ab%e4%b9%89","status":"publish","type":"post","link":"https:\/\/yangtingkun.net\/?p=820","title":{"rendered":"\u5b89\u88c5ORACLE\u65f6\u5728Linux\u4e0a\u8bbe\u7f6e\u5185\u6838\u53c2\u6570\u7684\u542b\u4e49"},"content":{"rendered":"<p>\u524d\u4e24\u5929\u770b\u5230\u4e00\u7bc7Redhat\u5b98\u65b9\u7684Oracle\u5b89\u88c5\u6587\u6863\uff0c\u5bf9\u4e8eLinux\u5185\u6838\u53c2\u6570\u7684\u4fee\u6539\u63cf\u8ff0\u7684\u975e\u5e38\u6e05\u6670\u3002<br \/>\n\u5b89\u88c5Oracle\u4e4b\u524d\uff0c\u9664\u4e86\u68c0\u67e5\u64cd\u4f5c\u7cfb\u7edf\u7684\u786c\u4ef6\u548c\u8f6f\u4ef6\u662f\u5426\u6ee1\u8db3\u5b89\u88c5\u9700\u8981\u4e4b\u5916\uff0c\u4e00\u4e2a\u91cd\u70b9\u5c31\u662f\u4fee\u6539\u5185\u6838\u53c2\u6570\uff0c\u5176\u4e2d\u6700\u4e3b\u8981\u7684\u662f\u548c\u5185\u5b58\u76f8\u5173\u7684\u53c2\u6570\u8bbe\u7f6e\u3002<br \/>\nSHMMAX\u53c2\u6570\uff1aLinux\u8fdb\u7a0b\u53ef\u4ee5\u5206\u914d\u7684\u5355\u72ec\u5171\u4eab\u5185\u5b58\u6bb5\u7684\u6700\u5927\u503c\u3002\u4e00\u822c\u8bbe\u7f6e\u4e3a\u5185\u5b58\u603b\u5927\u5c0f\u7684\u4e00\u534a\u3002\u8fd9\u4e2a\u503c\u7684\u8bbe\u7f6e\u5e94\u8be5\u5927\u4e8eSGA_MAX_TARGET\u6216MEMORY_MAX_TARGET\u7684\u503c\uff0c\u56e0\u6b64\u5bf9\u4e8e\u5b89\u88c5Oracle\u6570\u636e\u5e93\u7684\u7cfb\u7edf\uff0cshmmax\u7684\u503c\u5e94\u8be5\u6bd4\u5185\u5b58\u7684\u4e8c\u5206\u4e4b\u4e00\u5927\u4e00\u4e9b\u3002<\/p>\n<pre lang='SQL'># grep MemTotal \/proc\/meminfo\r\n# cat \/proc\/sys\/kernel\/shmmax<\/pre>\n<p>\u4e0a\u9762\u7684\u547d\u4ee4\u662f\u68c0\u67e5\u7cfb\u7edf\u5185\u5b58\u7684\u5927\u5c0f\uff0c\u4ee5\u53ca\u5f53\u524dshmmax\u7684\u8bbe\u7f6e\u3002<\/p>\n<pre lang='SQL'># echo 21474836480 > \/proc\/sys\/kernel\/shmmax\r\n# sysctl -w kernel.shmmax=21474836480\r\n# echo \"kernel.shmmax=21474836480\" >> \/etc\/sysctl.conf<\/pre>\n<p>\u8fd9\u662f\u8bbe\u7f6eshmmax\u53c2\u6570\u7684\u51e0\u79cd\u65b9\u6cd5\uff0c\u8fd9\u4e09\u79cd\u65b9\u5f0f\u90fd\u53ef\u4ee5\u5c06shmmax\u8bbe\u7f6e\u4e3a20G\u3002\u8fd9\u4e2a\u53c2\u6570\u7684\u4fee\u6539\u53ef\u4ee5\u4e0d\u91cd\u542f\u6570\u636e\u5e93\u3002\u4e2a\u4eba\u63a8\u8350\u4f7f\u7528\u7b2c\u4e8c\u79cdsysctl\u547d\u4ee4\u7684\u65b9\u5f0f\u3002\u91c7\u7528\u7b2c\u4e09\u79cd\u65b9\u5f0f\u9700\u8981\u6267\u884csysctl \u2013t\u64cd\u4f5c\u6216\u91cd\u542f\uff0c\u4f46\u662f\u4e3a\u4e86\u786e\u4fdd\u4e0b\u6b21\u91cd\u542f\u540e\u8bbe\u7f6e\u503c\u4ecd\u7136\u751f\u6548\uff0c\u7b2c\u4e09\u79cd\u65b9\u5f0f\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u524d\u4e24\u79cd\u65b9\u5f0f\u7c7b\u4f3calter system set scope = memory\uff0c\u800c\u7b2c\u4e09\u79cd\u65b9\u5f0f\u5219\u7c7b\u4f3calter system set scope = spfile\u3002<br \/>\nSHMMNI\u53c2\u6570\uff1a\u8bbe\u7f6e\u7cfb\u7edf\u7ea7\u6700\u5927\u5171\u4eab\u5185\u5b58\u6bb5\u6570\u91cf\u3002Oracle10g\u63a8\u8350\u6700\u5c0f\u503c\u4e3a4096\uff0c\u53ef\u4ee5\u9002\u5f53\u6bd44096\u589e\u52a0\u4e00\u4e9b\u3002<\/p>\n<pre lang='SQL'># cat \/proc\/sys\/kernel\/shmmni\r\n# echo 4096 > \/proc\/sys\/kernel\/shmmni\r\n# sysctl -w kernel.shmmni=4096\r\n# echo \"kernel.shmmni=4096\" >> \/etc\/sysctl.conf<\/pre>\n<p>\u68c0\u67e5\u548c\u8bbe\u7f6e\u65b9\u6cd5\u5982\u4e0a\uff0c\u8fd9\u548cshmmax\u7684\u4fee\u6539\u65b9\u5f0f\u6ca1\u6709\u533a\u522b\uff0c\u4e0d\u5728\u8d58\u8ff0\u3002<br \/>\nSHMALL\u53c2\u6570\uff1a\u8bbe\u7f6e\u5171\u4eab\u5185\u5b58\u603b\u9875\u6570\u3002\u8fd9\u4e2a\u503c\u592a\u5c0f\u6709\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u5e93\u542f\u52a8\u62a5\u9519\u3002\u5f88\u591a\u4eba\u8c03\u6574\u7cfb\u7edf\u5185\u6838\u53c2\u6570\u7684\u65f6\u5019\u53ea\u5173\u6ce8SHMMAX\u53c2\u6570\uff0c\u800c\u5ffd\u7565\u4e86SHMALL\u53c2\u6570\u7684\u8bbe\u7f6e\u3002\u8fd9\u4e2a\u503c\u63a8\u8350\u8bbe\u7f6e\u4e3a\u7269\u7406\u5185\u5b58\u5927\u5c0f\u9664\u4ee5\u5206\u9875\u5927\u5c0f\u3002<\/p>\n<pre lang='SQL'># getconf PAGE_SIZE<\/pre>\n<p>\u901a\u8fc7getconf\u83b7\u53d6\u5206\u9875\u7684\u5927\u5c0f\uff0c\u7528\u6765\u8ba1\u7b97SHMALL\u7684\u5408\u7406\u8bbe\u7f6e\u503c\uff1a<\/p>\n<pre lang='SQL'>SQL> select 32*1024*1024*1024\/4096 from dual;\r\n32*1024*1024*1024\/4096\r\n----------------------\r\n               8388608<\/pre>\n<p>\u5bf9\u4e8e32G\u7684\u5185\u5b58,4K\u5206\u9875\u5927\u5c0f\u7684\u7cfb\u7edf\u800c\u8a00\uff0cSHMALL\u7684\u503c\u5e94\u8be5\u8bbe\u7f6e\u4e3a8388608\u3002<\/p>\n<pre lang='SQL'># cat \/proc\/sys\/kernel\/shmall\r\n# echo 8388608 > \/proc\/sys\/kernel\/shmall\r\n# sysctl -w kernel.shmall=8388608\r\n# echo \" kernel.shmall=8388608\" >> \/etc\/sysctl.conf <\/pre>\n<p>\u67e5\u8be2\u548c\u8bbe\u7f6e\u65b9\u6cd5\u5982\u4e0a\u3002<br \/>\n\u4fe1\u53f7\u706fsemaphores\u662f\u8fdb\u7a0b\u6216\u7ebf\u7a0b\u95f4\u8bbf\u95ee\u5171\u4eab\u5185\u5b58\u65f6\u63d0\u4f9b\u540c\u6b65\u7684\u8ba1\u6570\u5668\u3002<br \/>\nSEMMSL\u53c2\u6570\uff1a\u8bbe\u7f6e\u6bcf\u4e2a\u4fe1\u53f7\u706f\u7ec4\u4e2d\u4fe1\u53f7\u706f\u6700\u5927\u6570\u91cf\uff0c\u63a8\u8350\u7684\u6700\u5c0f\u503c\u662f250\u3002\u5bf9\u4e8e\u7cfb\u7edf\u4e2d\u5b58\u5728\u5927\u91cf\u5e76\u53d1\u8fde\u63a5\u7684\u7cfb\u7edf\uff0c\u63a8\u8350\u5c06\u8fd9\u4e2a\u503c\u8bbe\u7f6e\u4e3aPROCESSES\u521d\u59cb\u5316\u53c2\u6570\u52a010\u3002<br \/>\nSEMMNI\u53c2\u6570\uff1a\u8bbe\u7f6e\u7cfb\u7edf\u4e2d\u4fe1\u53f7\u706f\u7ec4\u7684\u6700\u5927\u6570\u91cf\u3002Oracle10g\u548c11g\u7684\u63a8\u8350\u503c\u4e3a142\u3002<br \/>\nSEMMNS\u53c2\u6570\uff1a\u8bbe\u7f6e\u7cfb\u7edf\u4e2d\u4fe1\u53f7\u706f\u7684\u6700\u5927\u6570\u91cf\u3002\u64cd\u4f5c\u7cfb\u7edf\u5728\u5206\u914d\u4fe1\u53f7\u706f\u65f6\u4e0d\u4f1a\u8d85\u8fc7LEAST(SEMMNS,SEMMSL*SEMMNI)\u3002\u4e8b\u5b9e\u4e0a\uff0c\u5982\u679cSEMMNS\u7684\u503c\u8d85\u8fc7\u4e86SEMMSL*SEMMNI\u662f\u975e\u6cd5\u7684\uff0c\u56e0\u6b64\u63a8\u8350SEMMNS\u7684\u503c\u5c31\u8bbe\u7f6e\u4e3aSEMMSL*SEMMNI\u3002Oracle\u63a8\u8350SEMMNS\u7684\u8bbe\u7f6e\u4e0d\u5c0f\u4e8e32000\uff0c\u5047\u5982\u6570\u636e\u5e93\u7684PROCESSES\u53c2\u6570\u8bbe\u7f6e\u4e3a600\uff0c\u5219SEMMNS\u7684\u8bbe\u7f6e\u5e94\u4e3a\uff1a<\/p>\n<pre lang='SQL'>SQL> select (600+10)*142 from dual;\r\n(600+10)*142\r\n------------\r\n       86620<\/pre>\n<p>SEMOPM\u53c2\u6570\uff1a\u8bbe\u7f6e\u6bcf\u6b21\u7cfb\u7edf\u8c03\u7528\u53ef\u4ee5\u540c\u65f6\u6267\u884c\u7684\u6700\u5927\u4fe1\u53f7\u706f\u64cd\u4f5c\u7684\u6570\u91cf\u3002\u7531\u4e8e\u4e00\u4e2a\u4fe1\u53f7\u706f\u7ec4\u6700\u591a\u62e5\u6709SEMMSL\u4e2a\u4fe1\u53f7\u706f\uff0c\u56e0\u6b64\u6709\u63a8\u8350\u5c06SEMOPM\u8bbe\u7f6e\u4e3aSEMMSL\u7684\u503c\u3002Oracle\u9a8c\u8bc1\u768410.2\u548c11.1\u7684SEMOPM\u7684\u914d\u7f6e\u4e3a100\u3002<br \/>\n\u901a\u8fc7\u4e0b\u9762\u7684\u547d\u4ee4\u53ef\u4ee5\u68c0\u67e5\u4fe1\u53f7\u706f\u76f8\u5173\u914d\u7f6e\uff1a<\/p>\n<pre lang='SQL'># cat \/proc\/sys\/kernel\/sem\r\n250 32000 100 128<\/pre>\n<p>\u5bf9\u5e94\u76844\u4e2a\u503c\u4ece\u5de6\u5230\u53f3\u5206\u522b\u4e3aSEMMSL\u3001SEMMNS\u3001SEMOPM\u548cSEMMNI\u3002\u4fee\u6539\u65b9\u6cd5\u4e3a\uff1a<\/p>\n<pre lang='SQL'># echo 610 86620 100 142 > \/proc\/sys\/kernel\/sem\r\n# sysctl -w kernel.sem=\"610 86620 100 142\"\r\n# echo \"kernel.sem=610 86620 100 142\" >> \/etc\/sysctl.conf<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u4e24\u5929\u770b\u5230\u4e00\u7bc7Redhat\u5b98\u65b9\u7684Oracle\u5b89\u88c5\u6587\u6863\uff0c\u5bf9\u4e8eLinux\u5185\u6838\u53c2\u6570\u7684\u4fee\u6539\u63cf\u8ff0\u7684\u975e\u5e38\u6e05\u6670\u3002 \u5b89\u88c5Oracle\u4e4b\u524d\uff0c\u9664\u4e86\u68c0\u67e5\u64cd\u4f5c\u7cfb\u7edf\u7684\u786c\u4ef6\u548c\u8f6f\u4ef6\u662f\u5426\u6ee1\u8db3\u5b89\u88c5\u9700\u8981\u4e4b\u5916\uff0c\u4e00\u4e2a\u91cd\u70b9\u5c31\u662f\u4fee\u6539\u5185\u6838\u53c2\u6570\uff0c\u5176\u4e2d\u6700\u4e3b\u8981\u7684\u662f\u548c\u5185\u5b58\u76f8\u5173\u7684\u53c2\u6570\u8bbe\u7f6e\u3002 SHMMAX\u53c2\u6570\uff1aLinux\u8fdb\u7a0b\u53ef\u4ee5\u5206\u914d\u7684\u5355\u72ec\u5171\u4eab\u5185\u5b58\u6bb5\u7684\u6700\u5927\u503c\u3002\u4e00\u822c\u8bbe\u7f6e\u4e3a\u5185\u5b58\u603b\u5927\u5c0f\u7684\u4e00\u534a\u3002\u8fd9\u4e2a\u503c\u7684\u8bbe\u7f6e\u5e94\u8be5\u5927\u4e8eSGA_MAX_TARGET\u6216MEMORY_MAX_TARGET\u7684\u503c\uff0c\u56e0\u6b64\u5bf9\u4e8e\u5b89\u88c5Oracle\u6570\u636e\u5e93\u7684\u7cfb\u7edf\uff0cshmmax\u7684\u503c\u5e94\u8be5\u6bd4\u5185\u5b58\u7684\u4e8c\u5206\u4e4b\u4e00\u5927\u4e00\u4e9b\u3002 # grep MemTotal \/proc\/meminfo # cat \/proc\/sys\/kernel\/shmmax \u4e0a\u9762\u7684\u547d\u4ee4\u662f\u68c0\u67e5\u7cfb\u7edf\u5185\u5b58\u7684\u5927\u5c0f\uff0c\u4ee5\u53ca\u5f53\u524dshmmax\u7684\u8bbe\u7f6e\u3002 # echo 21474836480 > \/proc\/sys\/kernel\/shmmax # sysctl -w kernel.shmmax=21474836480 # echo &#8220;kernel.shmmax=21474836480&#8221; >> \/etc\/sysctl.conf \u8fd9\u662f\u8bbe\u7f6eshmmax\u53c2\u6570\u7684\u51e0\u79cd\u65b9\u6cd5\uff0c\u8fd9\u4e09\u79cd\u65b9\u5f0f\u90fd\u53ef\u4ee5\u5c06shmmax\u8bbe\u7f6e\u4e3a20G\u3002\u8fd9\u4e2a\u53c2\u6570\u7684\u4fee\u6539\u53ef\u4ee5\u4e0d\u91cd\u542f\u6570\u636e\u5e93\u3002\u4e2a\u4eba\u63a8\u8350\u4f7f\u7528\u7b2c\u4e8c\u79cdsysctl\u547d\u4ee4\u7684\u65b9\u5f0f\u3002\u91c7\u7528\u7b2c\u4e09\u79cd\u65b9\u5f0f\u9700\u8981\u6267\u884csysctl \u2013t\u64cd\u4f5c\u6216\u91cd\u542f\uff0c\u4f46\u662f\u4e3a\u4e86\u786e\u4fdd\u4e0b\u6b21\u91cd\u542f\u540e\u8bbe\u7f6e\u503c\u4ecd\u7136\u751f\u6548\uff0c\u7b2c\u4e09\u79cd\u65b9\u5f0f\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u3002\u524d\u4e24\u79cd\u65b9\u5f0f\u7c7b\u4f3calter system set scope = memory\uff0c\u800c\u7b2c\u4e09\u79cd\u65b9\u5f0f\u5219\u7c7b\u4f3calter system set scope = spfile\u3002 SHMMNI\u53c2\u6570\uff1a\u8bbe\u7f6e\u7cfb\u7edf\u7ea7\u6700\u5927\u5171\u4eab\u5185\u5b58\u6bb5\u6570\u91cf\u3002Oracle10g\u63a8\u8350\u6700\u5c0f\u503c\u4e3a4096\uff0c\u53ef\u4ee5\u9002\u5f53\u6bd44096\u589e\u52a0\u4e00\u4e9b\u3002 # cat &hellip; <a href=\"https:\/\/yangtingkun.net\/?p=820\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3],"tags":[683,680,682,679,681,678,677,676,665],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p2yiY3-de","_links":{"self":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts\/820"}],"collection":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=820"}],"version-history":[{"count":1,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts\/820\/revisions"}],"predecessor-version":[{"id":821,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=\/wp\/v2\/posts\/820\/revisions\/821"}],"wp:attachment":[{"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=820"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=820"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yangtingkun.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}