Database Administration (MOSC)

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Unable to connect to database

edited Sep 4, 2017 5:02AM in Database Administration (MOSC) 5 commentsAnswered

Dear All,

Greetings,

Database is not allowing any connections. I check alert file and found following entries.

WARNING: aiowait timed out 100 times

Errors in file /u01/oracle/diag/rdbms/CRM/CRM/trace/CRM_ckpt_7354.trc:

ORA-27062: could not find pending async I/Os

Sun Aug 20 09:28:56 2017

WARNING: aiowait timed out 1 times

Sun Aug 20 09:30:38 2017c ID 1575570.1)

Trace files show following entries.

Control file enqueue hold time tracking dump at time: 2082594

  1: 928ms (rw) file: ktu.c line: 25595 count: 1 total: 928ms time: 2082175

Control file enqueue hold time tracking dump at time: 2326067

*** 2017-03-22 07:27:38.786

  1: 928ms (rw) file: ktu.c line: 25595 count: 2 total: 1464ms time: 2082175

Control file enqueue hold time tracking dump at time: 2393298

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