Month: November 2020

ORA-04021: timeout occurred while waiting to lock object

When manually compiling a package body, the following error occurs:

SQL> alter package USER.PKGNAME compile body;
alter package USER.PKGNAME compile body
*
ERROR at line 1:
ORA-04021: timeout occurred while waiting to lock object USER.PKGNAME

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Code to Report Table Index Schema or Database Fragmentation in PostgreSQL

We are always asked by a client or our manager about how fragmented a table, an index, a schema or whole database is in PostgreSQL database. The following code will answer this question with the following information reported for a schema. 

Toal 7415.00 MB, Free 1918.87 MB, Fragmentation 25.88 Percent

Please do NOT run the code during busy or peak hours, ideally run the code in after hours or off-peak hours.

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oracle.sysman.gcagent.task.TaskTimeoutException: task timeout: 120000 MILLISECONDS for oracle_database: ORCL:Response

There following alert has been received with timeout error message “…oracle.sysman.gcagent.task.TaskTimeoutException: task timeout: 120000 MILLISECONDS…” 

 Host=oemnode1 
 Target type=Database Instance 
 Target name=OEMPROD
 Incident creation time=13/11/2020 10:09:39 PM AEDT 
 Last updated time=13/11/2020 10:09:39 PM AEDT 
 Message=Metric evaluation error start - oracle.sysman.emSDK.agent.fetchlet.exception.FetchletException: Timeout during collection: oracle.sysman.gcagent.task.TaskTimeoutException: task timeout: 120000 MILLISECONDS for oracle_database:OEMPROD:Response 
 Severity=Critical 
 Incident ID=463520 
 Event count=1 
 Incident Status=New 
 Escalated=No 
 Priority=High 
 Incident owner=SYSMAN
 Incident Acknowledged By Owner=No 
 Categories=Availability 
 ...
..
.

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ORA-10561: block type ‘TRANSACTION MANAGED DATA BLOCK’

The standby database alert log has the following errors:

Tue Nov 17 11:43:51 2020
 Errors in file /u01/app/oracle/diag/rdbms/stbytestdb/STBYTESTDB/trace/STBYTESTDB_mrp0_7269.trc:
 ORA-00600: internal error code, arguments: [3020], [3], [115047], [115047], [], [], [], [], [], [], [], []
 ORA-10567: Redo is inconsistent with data block (file# 3, block# 115047, file offset is 942465024 bytes)
 ORA-10564: tablespace SYSAUX
 ORA-01110: data file 3: '/u02/oradata/STBYTESTDB/sysaux01.dbf'
 ORA-10561: block type 'TRANSACTION MANAGED DATA BLOCK', data object# 8316
 Tue Nov 17 11:43:51 2020
 MRP0: Background Media Recovery process shutdown (STBYTESTDB)

SOLUTION

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How to Speed Up Index Creation in AWS PostgreSQL RDS

I was asked by a client about how to speed up index creation in a terabytes AWS PostgreSQL database. This post tries to explain all the details, and give some examples in real situation.

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