{"id":13449,"date":"2019-11-07T08:51:26","date_gmt":"2019-11-07T08:51:26","guid":{"rendered":"https:\/\/dbtut.com\/?p=13449"},"modified":"2019-11-07T08:51:26","modified_gmt":"2019-11-07T08:51:26","slug":"diagsnap-in-oracle-12c","status":"publish","type":"post","link":"https:\/\/dbtut.com\/index.php\/2019\/11\/07\/diagsnap-in-oracle-12c\/","title":{"rendered":"Diagsnap in Oracle 12c"},"content":{"rendered":"<h1>What is Diagsnap in Oracle 12c<\/h1>\n<p>Diagsnap is a new feature introduced in 12.1.0.2 GI, which manages the diagsnap resource, which collects additional operating system statistics that are not normally collected by CHM (Cluster Health Monitor) osysmod.<\/p>\n<p>Diagsnap metric collection automatically runs every 15 minutes to collect baseline metrics.<\/p>\n<h2>Which events trigger Diagsnap?<\/h2>\n<ul>\n<li>if cssd process reports missing network heartbeats<\/li>\n<li>if one or more interfaces of the gipcd process are down<\/li>\n<li>if the rank events of the gipcd process occur<\/li>\n<\/ul>\n<h2>Diagsnap runs the following operating system commands<\/h2>\n<ul>\n<li>iostat<\/li>\n<li>netstat<\/li>\n<li>lsof {gipcd pid | ocssd pid | ocssd pid | crsd pid | ohasd pid}<\/li>\n<li>arp<\/li>\n<li>ifconfig<\/li>\n<li>ping (over private interconnect)<\/li>\n<li>tcpdump<\/li>\n<li>top<\/li>\n<\/ul>\n<h2>Where is Diagsnap Logs in 12c?<\/h2>\n<p>The diagsnap logs are located in the $ORACLE_BASE\/diagsnap directory for 12.1 and 12.2.0.1<\/p>\n<h2>Where is Diagsnap Logs in 18c?<\/h2>\n<p>The diagsnap logs are located in the $ORACLE_BASE\/crsdata\/crf\/diagsnap directory for 18.1 and later.<\/p>\n<h2>How To Read Diagsnap Logs?<\/h2>\n<p>You can read the diagsnap logs as below.<\/p>\n<pre class=\"lang:default decode:true \">[oracle@orcl01 ]$ cd \/u01\/app\/oracle\/diagsnap\/orcldb01.localdomain\r\n[oracle@orcl01 ]$ tail -n 40 diagsnap_orcldb01.localdomain.log\r\n2017-05-12 11:02:17.609: [62334][MSG] Spawned process 200080 for : ping_orcldb02_ib0_192_168_10_3\r\n2017-05-12 11:02:17.610: [62334][MSG] Spawned process 200083 for : ping_orcldb08_ib0_192_168_10_15\r\n2017-05-12 11:02:17.610: [62334][MSG] Spawned process 200085 for : ping_orcldb05_bondeth0-4_10_124_1_125\r\n2017-05-12 11:02:17.611: [62334][MSG] Spawned process 200087 for : lsof_22188_ohasd_bin\r\n2017-05-12 11:02:17.611: [62334][MSG] Spawned process 200090 for : traceroute_orcldb01_ib0_192_168_10_1\r\n2017-05-12 11:02:17.612: [62334][MSG] Spawned process 200092 for : netstat_s\r\n2017-05-12 11:15:52.666: [248239][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2017-05-12 11:15:52.785: [248239][MSG] [stop] The deamon (167169) is not running.\r\n2017-06-15 14:34:13.539: [75495][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2017-06-15 14:34:13.668: [75495][WRN] Failed stopping the resource\r\n2017-06-15 14:36:31.834: [86352][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2017-06-15 14:36:31.968: [86352][WRN] Failed stopping the resource\r\n2017-07-10 11:37:29.282: [319803][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2017-07-10 11:37:29.412: [319803][WRN] Failed stopping the resource\r\n2017-07-10 14:00:37.135: [133362][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2017-07-10 14:00:37.284: [133362][WRN] Failed stopping the resource\r\n2018-09-12 19:11:33.450: [373119][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2018-09-12 19:11:33.590: [373119][WRN] Failed stopping the resource\r\n2018-09-12 19:17:02.905: [46277][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2018-09-12 19:17:03.059: [46277][WRN] Failed stopping the resource\r\n2018-10-05 22:35:59.949: [245601][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2018-10-05 22:36:00.099: [245601][MSG] [stop] The deamon (167169) is not running.\r\n2018-10-05 22:36:02.939: [245944][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2018-10-05 22:36:03.075: [245944][MSG] [stop] The deamon (167169) is not running.\r\n2018-10-29 01:55:09.765: [199565][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2018-10-29 01:55:09.910: [199565][MSG] [stop] The deamon (167169) is not running.\r\n2018-10-29 01:55:12.712: [199636][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2018-10-29 01:55:12.844: [199636][MSG] [stop] The deamon (167169) is not running.\r\n2018-11-21 05:14:16.082: [50548][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2018-11-21 05:14:16.215: [50548][MSG] [stop] The deamon (167169) is not running.\r\n2018-11-21 05:14:18.801: [50588][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2018-11-21 05:14:18.928: [50588][MSG] [stop] The deamon (167169) is not running.\r\n2018-12-14 08:33:21.734: [267245][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2018-12-14 08:33:21.880: [267245][MSG] [stop] The deamon (167169) is not running.\r\n2018-12-14 08:33:24.914: [267926][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2018-12-14 08:33:25.045: [267926][MSG] [stop] The deamon (167169) is not running.\r\n2019-01-06 11:52:33.963: [325988][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2019-01-06 11:52:34.089: [325988][MSG] [stop] The deamon (167169) is not running.\r\n2019-01-06 11:52:37.082: [326054][MSG] diagsnap.pl invoked with stop option in CHM mode\r\n2019-01-06 11:52:37.210: [326054][MSG] [stop] The deamon (167169) is not running.<\/pre>\n<p>It is possible to disable and enable Diagsnap.<\/p>\n<h2>How To Enable Diagsnap<\/h2>\n<pre class=\"lang:default decode:true \">[oracle@orcldb01 ]$ oclumon manage -enable diagsnap\r\nDiagsnap option is successfully Enabled on orcldb01\r\nDiagsnap option is successfully Enabled on orcldb02\r\nDiagsnap option is successfully Enabled on orcldb03\r\nDiagsnap option is successfully Enabled on orcldb04\r\nDiagsnap option is successfully Enabled on orcldb05\r\nDiagsnap option is successfully Enabled on orcldb06\r\nDiagsnap option is successfully Enabled on orcldb07\r\nDiagsnap option is successfully Enabled on orcldb08\r\nSuccessfully Enabled diagsnap<\/pre>\n<h2>How To Disable Diagsnap<\/h2>\n<pre class=\"lang:default decode:true \">[oracle@orcldb01 ]$ oclumon manage -disable diagsnap\r\nDiagsnap option is successfully Disabled on orcldb01\r\nDiagsnap option is successfully Disabled on orcldb02\r\nDiagsnap option is successfully Disabled on orcldb03\r\nDiagsnap option is successfully Disabled on orcldb04\r\nDiagsnap option is successfully Disabled on orcldb05\r\nDiagsnap option is successfully Disabled on orcldb06\r\nDiagsnap option is successfully Disabled on orcldb07\r\nDiagsnap option is successfully Disabled on orcldb08\r\nSuccessfully Disabled diagsnap<\/pre>\n<h2>How To Check Whether the Diagsnap is Disabled or Enabled?<\/h2>\n<pre class=\"lang:default decode:true \">[oracle@orcld01 ]$ egrep '^DIAGSNAP|^PSTACK' $GRID_HOME\/crf\/admin\/crf$(hostname -s).ora\r\nPSTACK=Disable\r\nDIAGSNAP=Disable\r\n<\/pre>\n\n<div 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Diagsnap metric collection automatically runs every 15 minutes to collect baseline metrics. Which events trigger Diagsnap? if cssd &hellip;<\/p>\n<div class=\"pvc_clear\"><\/div>\n<p id=\"pvc_stats_13449\" class=\"pvc_stats all  \" data-element-id=\"13449\" style=\"\"><i class=\"pvc-stats-icon medium\" aria-hidden=\"true\"><svg aria-hidden=\"true\" focusable=\"false\" data-prefix=\"far\" data-icon=\"chart-bar\" role=\"img\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\" class=\"svg-inline--fa fa-chart-bar fa-w-16 fa-2x\"><path fill=\"currentColor\" d=\"M396.8 352h22.4c6.4 0 12.8-6.4 12.8-12.8V108.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v230.4c0 6.4 6.4 12.8 12.8 12.8zm-192 0h22.4c6.4 0 12.8-6.4 12.8-12.8V140.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v198.4c0 6.4 6.4 12.8 12.8 12.8zm96 0h22.4c6.4 0 12.8-6.4 12.8-12.8V204.8c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v134.4c0 6.4 6.4 12.8 12.8 12.8zM496 400H48V80c0-8.84-7.16-16-16-16H16C7.16 64 0 71.16 0 80v336c0 17.67 14.33 32 32 32h464c8.84 0 16-7.16 16-16v-16c0-8.84-7.16-16-16-16zm-387.2-48h22.4c6.4 0 12.8-6.4 12.8-12.8v-70.4c0-6.4-6.4-12.8-12.8-12.8h-22.4c-6.4 0-12.8 6.4-12.8 12.8v70.4c0 6.4 6.4 12.8 12.8 12.8z\" class=\"\"><\/path><\/svg><\/i> <img loading=\"lazy\" decoding=\"async\" width=\"16\" height=\"16\" alt=\"Loading\" src=\"https:\/\/dbtut.com\/wp-content\/plugins\/page-views-count\/ajax-loader-2x.gif\" border=0 \/><\/p>\n<div class=\"pvc_clear\"><\/div>\n","protected":false},"author":1,"featured_media":13450,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[4],"tags":[5311,5309,5310,5312,5313,5314,5308,5307,5306,5302,5301,5305,5303,5304],"class_list":["post-13449","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-oracle","tag-check-whether-the-diagsnap-is-disabled-or-enabled","tag-diagsnap-is-disabled","tag-diagsnap-is-enabled","tag-disable-diagsnap","tag-enable-diagsnap","tag-how-to-disable-diagsnap","tag-how-to-enable-diagsnap","tag-how-to-enable-diagsnap-feature","tag-how-to-read-diagsnap-logs","tag-what-is-diagsnap","tag-what-is-diagsnap-in-oracle-12c","tag-where-is-diagsnap-logs","tag-where-is-diagsnap-logs-in-12c","tag-where-is-diagsnap-logs-in-18c"],"aioseo_notices":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - 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