I have recently come across this nasty bug, which occurred after upgrading the RAC cluster to 10.2.0.4. Out of nowhere the LMON process has terminated one cluster instance. After some research I found a matching bug from September 2008:<\/p>\n
Bug 6500033 \/ MetaLink Note 6500033.8: LMON crash the instance with ORA-481 due to DRM sync timeout alert_MDDB1.log: \nSun Oct 19 17:47:12 2008 <\/code><\/p>\n MDDB1_lmon_12345.trc:<\/p>\n ----------------------- <\/code><\/p>\n It is fixed in RAC Recommended Bundle #2 (7573282), available for Linux x86-32\/64, Solaris and HP-UX.<\/p>\n","protected":false},"excerpt":{"rendered":" I have recently come across this nasty bug, which occurred after upgrading the RAC cluster to 10.2.0.4. Out of nowhere the LMON process has terminated one cluster instance. After some research I found a matching bug from September 2008: Bug 6500033 \/ MetaLink Note 6500033.8: LMON crash the instance with ORA-481 due to DRM sync […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[13,47],"tags":[],"class_list":["post-458","post","type-post","status-publish","format-standard","hentry","category-10g","category-bugs"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ora-solutions.net\/web\/wp-json\/wp\/v2\/posts\/458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ora-solutions.net\/web\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ora-solutions.net\/web\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ora-solutions.net\/web\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ora-solutions.net\/web\/wp-json\/wp\/v2\/comments?post=458"}],"version-history":[{"count":5,"href":"https:\/\/www.ora-solutions.net\/web\/wp-json\/wp\/v2\/posts\/458\/revisions"}],"predecessor-version":[{"id":463,"href":"https:\/\/www.ora-solutions.net\/web\/wp-json\/wp\/v2\/posts\/458\/revisions\/463"}],"wp:attachment":[{"href":"https:\/\/www.ora-solutions.net\/web\/wp-json\/wp\/v2\/media?parent=458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ora-solutions.net\/web\/wp-json\/wp\/v2\/categories?post=458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ora-solutions.net\/web\/wp-json\/wp\/v2\/tags?post=458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n<\/strong><\/p>\n
\n<\/p>\n
\nLMON: terminating instance due to error 481\n<\/p><\/blockquote>\n<\/p>\n
\nsent synca inc 4 lvl 1308 (4,0\/38\/0)
\nkjfcdrmrfg: SYNC TIMEOUT (105441, 104540, 900), step 31
\nSubmitting asynchronized dump request [28]
\nKJC Communication Dump:
\nstate 0x5 flags 0x0 mode 0x0 inst 0 inc 4
\nnrcv 3 nsp 3 nrcvbuf 1000\n<\/p><\/blockquote>\n