{"id":2115,"date":"2014-02-17T19:33:31","date_gmt":"2014-02-17T16:33:31","guid":{"rendered":"http:\/\/blog.yavor.info\/?p=2115"},"modified":"2014-02-17T19:33:31","modified_gmt":"2014-02-17T16:33:31","slug":"%d1%81%d1%80%d0%b5%d0%b4%d0%bd%d0%be-%d0%bd%d0%b0%d1%82%d0%be%d0%b2%d0%b0%d1%80%d0%b2%d0%b0%d0%bd%d0%b5-%d0%ba%d0%bb%d1%8a%d1%81%d1%82%d0%b5%d1%80%d0%bd%d0%b0-%d0%b2%d0%b5%d1%80%d1%81%d0%b8%d1%8f","status":"publish","type":"post","link":"http:\/\/blog.yavor.info\/?p=2115","title":{"rendered":"\u0421\u0440\u0435\u0434\u043d\u043e \u043d\u0430\u0442\u043e\u0432\u0430\u0440\u0432\u0430\u043d\u0435  &#8211; \u043a\u043b\u044a\u0441\u0442\u0435\u0440\u043d\u0430 \u0432\u0435\u0440\u0441\u0438\u044f"},"content":{"rendered":"<p>\u041d\u0430\u0441\u043a\u043e\u0440\u043e <a href=\"http:\/\/blog.yavor.info\/?p=2088\" title=\"\u0421\u0440\u0435\u0434\u043d\u043e \u043d\u0430\u0442\u043e\u0432\u0430\u0440\u0432\u0430\u043d\u0435\">\u043f\u043e\u0441\u0442\u043d\u0430\u0445<\/a> \u0435\u0434\u043d\u0430 \u0437\u0430\u044f\u0432\u043a\u0430, \u043a\u043e\u044f\u0442\u043e \u043c\u043e\u0436\u0435 \u0434\u0430 \u0434\u0430\u0434\u0435 \u0441\u0440\u0435\u0434\u043d\u043e\u0442\u043e \u043d\u0430\u0442\u043e\u0432\u0430\u0440\u0432\u0430\u043d\u0435 \u043d\u0430 \u0431\u0430\u0437\u0430\u0442\u0430 \u043f\u043e \u0434\u043d\u0438, \u0441\u0435\u0434\u043c\u0438\u0446\u0438 \u0438 \u043c\u0435\u0441\u0435\u0446\u0438. \u0420\u0430\u0431\u043e\u0442\u0438 \u0447\u0443\u0434\u0435\u0441\u043d\u043e&#8230; \u0434\u043e\u043a\u0430\u0442\u043e \u043d\u0435 \u0433\u043e \u043f\u0443\u0441\u043d\u0430\u0445 \u0432\u044a\u0440\u0445\u0443 RAC \u0431\u0430\u0437\u0430.<\/p>\n<p>\u041f\u0440\u0438 RAC \u0438\u043c\u0430 \u043f\u043e \u0435\u0434\u0438\u043d \u0440\u0435\u0434 \u0437\u0430 \u0432\u0441\u0435\u043a\u0438 node \u0438 \u043c\u043e\u044f\u0442\u0430 \u0441\u0442\u0440\u0430\u0442\u0435\u0433\u0438\u044f \u0434\u0430 \u0432\u0430\u0434\u044f \u0440\u0435\u0437\u0443\u043b\u0442\u0430\u0442\u0438\u0442\u0435 \u043e\u0442 \u043f\u0440\u0435\u0434\u043d\u0438\u044f \u0440\u0435\u0434 \u0432\u043e\u0434\u044f\u0442 \u0434\u043e \u043f\u043e\u043a\u044a\u0440\u0442\u0438\u0442\u0435\u043b\u043d\u0438 \u0440\u0435\u0437\u0443\u043b\u0442\u0430\u0442\u0438. \u0422\u0430\u043a\u0430 \u0447\u0435 &#8211; \u0435\u0442\u043e \u043d\u043e\u0432\u0430\u0442\u0430, RAC-aware \u0432\u0435\u0440\u0441\u0438\u044f:<\/p>\n<pre class=\"brush:sql\">\r\nselect trunc(this_day, 'MONTH'), avg(day_db_time), sum(cnt) scnt\r\n  from (select this_day, count(1) cnt,\r\n                sum(case\r\n                       when snap_db_time > 0 then\r\n                        snap_db_time\/1000\/1000\/60\/60\/24\r\n                       else\r\n                        null\r\n                     end) day_db_time\r\n           from (select trunc(begin_interval_time) this_day, tm.snap_id,\r\n                         value - lag(value, 1) over(order by tm.instance_number, tm.snap_id) snap_db_time\r\n                    from dba_hist_sys_time_model tm, dba_hist_snapshot s\r\n                   where tm.stat_name = 'DB CPU'\r\n                     and s.snap_id = tm.snap_id\r\n                     and s.instance_number = tm.instance_number\r\n                     and s.begin_interval_time > add_months(trunc(sysdate, 'YEAR'), -24)\r\n                     and s.begin_interval_time < trunc(sysdate, 'MONTH')\r\n                     )\r\n          group by this_day)\r\n group by trunc(this_day, 'MONTH')\r\n order by 1\r\n<\/pre>\n<p>\u0415\u0434\u0438\u043d\u0441\u0442\u0432\u0435\u043d\u0430\u0442\u0430 \u0440\u0430\u0437\u043b\u0438\u043a\u0430 \u0435, \u0447\u0435 \u0432\u043d\u0438\u043c\u0430\u0432\u0430\u043c \u043a\u043e\u0439 instance \u0435 \u043d\u0430 \u043f\u0440\u0435\u0434\u043d\u0438\u044f \u0440\u0435\u0434, \u0434\u0430 \u043d\u0435 \u0432\u0430\u0434\u044f \u043d\u044f\u043a\u0430\u043a\u0432\u0438 \u0433\u043b\u0443\u043f\u043e\u0441\u0442\u0438. \u0420\u0430\u0431\u043e\u0442\u0438 \u0447\u0443\u0434\u0435\u0441\u043d\u043e \u0438 \u0437\u0430 single instance \u0431\u0430\u0437\u0438.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u041d\u0430\u0441\u043a\u043e\u0440\u043e \u043f\u043e\u0441\u0442\u043d\u0430\u0445 \u0435\u0434\u043d\u0430 \u0437\u0430\u044f\u0432\u043a\u0430, \u043a\u043e\u044f\u0442\u043e \u043c\u043e\u0436\u0435 \u0434\u0430 \u0434\u0430\u0434\u0435 \u0441\u0440\u0435\u0434\u043d\u043e\u0442\u043e \u043d\u0430\u0442\u043e\u0432\u0430\u0440\u0432\u0430\u043d\u0435 \u043d\u0430 \u0431\u0430\u0437\u0430\u0442\u0430 \u043f\u043e \u0434\u043d\u0438, \u0441\u0435\u0434\u043c\u0438\u0446\u0438 \u0438 \u043c\u0435\u0441\u0435\u0446\u0438. \u0420\u0430\u0431\u043e\u0442\u0438 \u0447\u0443\u0434\u0435\u0441\u043d\u043e&#8230; \u0434\u043e\u043a\u0430\u0442\u043e \u043d\u0435 \u0433\u043e \u043f\u0443\u0441\u043d\u0430\u0445 \u0432\u044a\u0440\u0445\u0443 RAC \u0431\u0430\u0437\u0430. \u041f\u0440\u0438 RAC \u0438\u043c\u0430 \u043f\u043e \u0435\u0434\u0438\u043d \u0440\u0435\u0434 \u0437\u0430 \u0432\u0441\u0435\u043a\u0438 node \u0438 \u043c\u043e\u044f\u0442\u0430 \u0441\u0442\u0440\u0430\u0442\u0435\u0433\u0438\u044f \u0434\u0430 \u0432\u0430\u0434\u044f \u0440\u0435\u0437\u0443\u043b\u0442\u0430\u0442\u0438\u0442\u0435 \u043e\u0442 \u043f\u0440\u0435\u0434\u043d\u0438\u044f \u0440\u0435\u0434 \u0432\u043e\u0434\u044f\u0442 \u0434\u043e \u043f\u043e\u043a\u044a\u0440\u0442\u0438\u0442\u0435\u043b\u043d\u0438 \u0440\u0435\u0437\u0443\u043b\u0442\u0430\u0442\u0438. \u0422\u0430\u043a\u0430 \u0447\u0435 &#8211; \u0435\u0442\u043e \u043d\u043e\u0432\u0430\u0442\u0430, RAC-aware \u0432\u0435\u0440\u0441\u0438\u044f: <a href='http:\/\/blog.yavor.info\/?p=2115' class='excerpt-more'>[&#8230;]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"http:\/\/blog.yavor.info\/index.php?rest_route=\/wp\/v2\/posts\/2115"}],"collection":[{"href":"http:\/\/blog.yavor.info\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.yavor.info\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.yavor.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.yavor.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2115"}],"version-history":[{"count":2,"href":"http:\/\/blog.yavor.info\/index.php?rest_route=\/wp\/v2\/posts\/2115\/revisions"}],"predecessor-version":[{"id":2117,"href":"http:\/\/blog.yavor.info\/index.php?rest_route=\/wp\/v2\/posts\/2115\/revisions\/2117"}],"wp:attachment":[{"href":"http:\/\/blog.yavor.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2115"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.yavor.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2115"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.yavor.info\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}