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I. Problem Description The information in the database Alert Log is as follows: Mon Jul 30 22:01:00 2012 Errors in file/g01/APP/Oracle/diag/rdbms/gumd/Trace/gumd_mmon_21407.trc (incident = 76981 ): ORA-00600: Internal error code, parameter: [kmgs_parameter_update_timeout_1], [27072], [], [], [], [], [], [], [] [], [] ORA-27072: file I/O errors Linux-x86_64 error: 9: Bad file descriptor Additional information: 4 Additional information: 4 Additional in

Situation descriptionOne day the company small Zhang came to consult, said that the database query error; At first glance as if the database is bad fast, in order to troubleshoot more detailed error messages, decided to check the alarm log, found that the problem is that the database is full of physical disk spaceWriting to the above tracefileis disabled forNow on ... Tue Jul in -: -: + theNon Critical Error ORA-48181Caught whileWriting to Tracefile "/U01/APP/ORACLE/DIAG/RDBMS/ORCL/ORCL/TRACE/

I went to a customer for database inspection last Friday. It was a 10 Gb NC System database on Windows and configured with DG. However, during inspection, I found the database error: TueNov1110: 13: 572014LNS: pushed. Last Friday, I went to a customer to perform database inspection. It was a 10 Gb NC System database on Windows 2008 and configured with DG. However, during the inspection, I found the database error: Tue Nov 11 10:13:57 2014LNS: standby redo logfile selected for thread 1 sequence 3

Where is the script wrong? -- Linux general technology-Linux technology and application information. For details, refer to the following section. From = 111 T1. = 222 To = 333 Upday = 'date -- date = "$ datestr + % y % m % d "' For daemon in $ lists; do Trcfile =/var/log/cabal/"$ daemon" _ "$ upday". trc Backfile =/trc/$ upday/"$ daemon" _ "$ uphour". trc

procedure successfully completed. 5. the SQL trace tool collects the performance status data of the SQL statements executed in this process and records the data in a trace file. this trace file provides a lot of useful information, such as the number of resolutions. number of executions, CPU usage time, and so on. 6. At this time, you can use the following statement to obtain the directory of the generated trace file.SQL> select value from v $ parameter where name = 'user _ dump_dest '; VALUE -

as the number of resolutions. number of executions, CPU usage time, and so on. 6. At this time, you can use the following statement to obtain the directory of the generated trace file. SQL> select value from v $ parameter where name = 'user _ dump_dest '; VALUE -------------------------------------------------------------------------------- /Opt/oracle/admin/ocn/udump 7. Locate yzoracle_ora_9497.trc under/opt/oracle/admin/ocn/udump. 9497 is the spid

view the cause of tnsping failure: Create a sqlnet. ora File: # Sqlnet. ora Network Configuration File:/opt/oracle/102/network/admin/sqlnet. ora # Generated by Oracle configuration tools. NAMES. DIRECTORY_PATH = (TNSNAMES, EZCONNECT) Trace_level_client = 16 Trace_directory_client =/opt/app/ora11g/product/11.2.0/dcsopen/network/admin Trace_unique_client = on Trace_timestamp_client = on Diag_adr_enabled = off Tnsping. trace_directory =/opt/app/ora11g/product/11.2.0/dcsopen/network/admin Tnsping.

/u01/app/oracle/diag/rdbms/prod/trace/prod_ora_11803.trc: ORA-19502: write error on file "/dsk4/arch_prod/arch_1_79_827494678.log", block number 4097 (block size = 512) ORA-27072: File I/O error. Linux-x86_64 Error: 25: Inappropriate ioctl for device Additional information: 4 Additional information: 4097 Additional information: 765440 ORA-19502: write error on file "/dsk4/arch_prod/arch_1_79_827494678.log", block number 4097 (block size = 512) Sun May

First, log on to sqlplus. SQL> sqlplus Scott/Tiger We can add the suffix 'look _ for_me 'After the trace file to facilitate searching for the trace file. We do not add any of the following examples. SQL>AlterSessionSetTracefile_identifier='Look_for_me'; Step 1: view the path and file name of the trail File SQL>Show parameter user_dump_dest; -- path of the trace file SQL > Select C. Value | ' / ' | D. instance_name | ' _ Ora _ ' | 2 A. spid | ' .

system. When running read80trace, I usually use the following command line: Read80trace-F-dmydb-imytrace. TRC The-F switch does not generate rml files because I do not need the replay function. The generated rml file is large. We recommend that you use the-F switch if you do not need to replay the file. The-D switch tells read80trace to save the trace file processing result to the mydb database. The stored procedure we created later accesses th

logic for arranging and allocating hardware resources is similar. Therefore, to switch from PC to Xbox, you only need to use a similar idea to arrange it. However, pS2 differs greatly from PC systems in both hardware planning and firmware, there will be more places to adapt. ◆ Final big test: technical certification requirements (tcrs) iron Phoenix is now "developed" and is conducting the final "TRC review ". What is

systemswitch logfile; System altered. -- In my habits, switch logs before shutting down the database. Sys @ xezf (qs-xezf-db1)> shutdownimmediate -- Always hangs on this -- Trace log: [Oracle @ qs-xezf-db1 bdump] $ tail-falert_xezf.log Stopping background process qmnc Thu Mar 29 13:24:08 CST 2012 Stopping background process cjq0 Thu Mar 29 13:24:10 CST 2012 Stopping background process mmnl Thu Mar 29 13:24:11 CST 2012 Stopping background process mmon License high water mark = 201 Thu Mar 29 1

by all SQL statements, but does not include records returned by subqueries.For the SELECT statement, the return value is in the fetch step.For DML statements, the returned result is in the execute step. 4 steps for using tkprof (1) set timed_statistic = true at the instance levelSQL> show parameter timed_statisticName_col_plus_show_p type value_col_plus_show _--------------------------------------------------------------Timed_statistics Boolean true(2) use various tools to obtain the

/redolog_A2/redo/redo02A. logCurrent log #2 seq #82830 mem #1:/dbccbPR1/oracle/PRODB/redolog_B2/redo/redo02B. log Wed Jun 10 12:09:40 2015Exception [type: SIGSEGV, Address not mapped to object] [ADDR: 0x210] [PC: 0x193F4DF, kxfpqrclb () + 71] [flags: 0x0, count: 1]Errors in file/opt/app/oracle/dbccbspr1/diag/rdbms/PRODB/trace/PRODB_p135_15651.trc (incident = 2116204 ):ORA-07445: exception encountered: core dump [kxfpqrclb () + 71] [SIGSEGV] [ADDR: 0x2

here;Next, I want to see what causes the fault and continue;7. view the alarm log and view a large number of Process m000 died alarms in the log; Wed Apr 29 21:27:31 2015 Ksvcreate: Process (m000) creation failed Wed Apr 29 21:28:32 2015 Process m000 died, see its trace file Wed Apr 29 21:28:32 2015 Ksvcreate: Process (m000) creation failed Wed Apr 29 21:29:33 2015 Process m000 died, see its trace fileEighth, find the trace file corresponding to the time and see the "ORA-00020: maximum number o

Database ORA-00600 of a provincial telecommunications industry company [15160] Systems: HP-UX B .11.31 RAC: YES Database Version: 10.2.0.4 1. Background : 39dbrac database Node 2, found a lot of ORA-600 errors in the alert Log, the analysis is the table test_wait statistical information error caused, re-analyze the statistical information of the table, eliminate errors.2. DBRAC database error handling process 1. view the alert Log as follows: Wed Feb 26 10:11:18 2014 Errors in file/Oracle/admin/

Check found that a set of rac two instances Using ASM basically reported a ORA-32701 error every hour, the error message in the capture alert Log is as follows: Check found that a set of rac two instances Using ASM basically reported a ORA-32701 error every hour, the error message in the capture alert Log is as follows: I. Version Information Operating system version: AIX 61009 Oracle Database Version: 11.2.0.3.11 (RAC) Ii. Error description Check found that a set of rac two instances Using

8284 [oracle @ subsdb2 (LMD0)] Explorer: inst 1 binc 1740332689 ospid 15851 IPC Send timeout to 1.0 inc 10 for msg type 65521 from opid 12 Tue Aug 20 00:29:48 2013 IPC Send timeout detected. Sender: ospid 8276 [oracle @ subsdb2 (PING)] Explorer: inst 2 binc 1801834534 ospid 8276 Tue Aug 20 00:29:52 2013 Detected an inconsistent instance membership by instance 2 Errors in file/oracle/app/oracle/diag/rdbms/gdordb/GDORDB2/trace/GDORDB2_lmon_8282.trc (in

. You can view the control file through dump. 2.1 direct dump controlfile Alter system set events 'immediate trace name controlf level 10' 2.2. Use alter database backup controlfile to filename The dump file generated by the preceding two methods is unreadable and garbled. It is readable only after the trace is generated. 2.2. Use alter database backup controlfile to trace The generated trace file is in the udump directory and can be determined by date. SQL> show parameteruser_dump_dest

CP +data/ora11g/backup/control01.ctl +data/ora11g/controlfile/control01.ctlAlter system set control_files= ' +data/ora11g/controlfile/control01.ctl ' scope=spfile;Shutdown immediateStartup MountSelect Group#,status from V$log;Select Group#,member from V$logfile;Select group#,thread#,sequence# from V$archive;Recover database using Backup controlfile until cancel;ALTER DATABASE open resetlogs;----------------------------------------------------------------------------------------------------------