Linux error 12 cannot allocate memory oracle

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Ora-27102: Out Of Memory: Linux Error: 12: Cannot Allocate .

https://support.oracle.com/knowledge/Oracle%20Linux%20and%20Virtualization/401077_1.html

Apr 21, 2020 · Ora-27102: Out Of Memory: Linux Error: 12: Cannot Allocate Memory with LOCK_SGA=TRUE (Doc ID 401077.1) Last updated on APRIL 21, 2020. Applies to: Linux OS — Version Enterprise Linux 4.2 and later Oracle Cloud Infrastructure — Version N/A and later Linux x86 Linux x86-64 Linux Kernel — Version: 4.2 Checked for currency 06-Jan-2020

Linux-x86_64 Error: 12: Cannot allocate memory — Oracle

https://support.oracle.com/knowledge/Oracle%20Database%20Products/1532488_1.html

Jan 31, 2020 · RMAN backup and Data Pump EXPDP export fail to a NFS mount with «Linux-x86_64 Error: 12: Cannot allocate memory» after installing Exadata 11.2.3.2.1 image (Doc ID 1532488.1) Last updated on JANUARY 31, 2020. Applies to: Oracle Exadata Storage Server Software — Version 11.2.3.2.1 to 11.2.3.2.1 [Release 11.2]

Solved: Linux Error: 12: Cannot allocate memory — Hewlett .

https://community.hpe.com/t5/System-Administration/Linux-Error-12-Cannot-allocate-memory/td-p/4699467

Oracle was running until Mr DBA has increased the value of ‘sga_max_size’ to 2.5GB SQL> startup ORA-27102: out of memory Linux Error: 12: Cannot allocate memory Additional information: 1 Additional information: 2260998 following are the kernel parameters # cat /proc/sys/kernel/shmmni 4096 # cat /proc/sys/kernel/shmmax 3294967296 # cat /proc/sys .

oracle — Linux-x86_64 Error: 12: Cannot allocate memory .

https://stackoverflow.com/questions/46800571/linux-x86-64-error-12-cannot-allocate-memory-ora-27102-out-of-memory-during

This error is due to the unwanted cache data. Rebooting the server solves the issue also confirm that the value in /proc/sys/vm/drop_caches is 1. After rebooting, restart all the services including oracle. echo 1 > /proc/sys/vm/drop_caches reboot

ORA-01034: ORACLE not available ORA-27102: out of memory .

https://www.experts-exchange.com/questions/29135413/ORA-01034-ORACLE-not-available-ORA-27102-out-of-memory-Linux-x86-64-Error-12-Cannot-allocate-memory.html

Feb 14, 2019 · ORA-01034: ORACLE not available ORA-27102: out of memory Linux-x86_64 Error: 12: Cannot allocate memory Obviously, suspicion is that my product caused the Oracle problem. Apparently, oracle ran out of «accessible memory» ( whatever that means — …

OVM 3.4.x — Guest Startup Failure Due to DMA Heap . — Oracle

https://support.oracle.com/knowledge/Oracle%20Linux%20and%20Virtualization/2320156_1.html

OVM 3.4.x — Guest Startup Failure Due to DMA Heap Leak «(12, ‘Cannot allocate memory’)» and «failed (3): stderr: Error: Domain does not exist» (Doc ID 2320156.1) Last updated on MARCH 05, 2020. Applies to: Oracle VM — Version 3.4.1 and later Oracle Cloud Infrastructure — Version N/A and later Linux x86-64 …

Linux-x86_64 Error: 12: Cannot allocate memory — Blogger

https://tesliuk.blogspot.com/2013/11/linux-x8664-error-12-cannot-allocate.html

Nov 12, 2013 · Linux-x86_64 Error: 12: Cannot allocate memory . I’m a person addicted to successful functioning of the mixture of Oracle products, Linux/Unix operating systems, storage technologies, virtual environments etc. It’s hard to name this resource as blog, rather ‘side notes’. A little amount of information provided here is my own point of view.

Startup Database Failed With ORA-27102: out of memory .

https://support.oracle.com/knowledge/Oracle%20Database%20Products/2352246_1.html

Oracle Database — Enterprise Edition — Version 11.2.0.4 and later: Startup Database Failed With ORA-27102: out of memory Linux-x86_64 Error: 12: Cannot allocate memo

oracle — ORA-27102: out of memory — Database .

https://dba.stackexchange.com/questions/229532/ora-27102-out-of-memory

Clients cannot connect and they receive error: java.sql.SQLRecoverableException: ORA-01034: ORACLE not available ORA-27102: out of memory Linux-x86_64 Error: 12: Cannot allocate memory Additional information: 2673 Additional information: 488341508 Additional information: 1744830464

Linux Error 12 Cannot Allocate Memory Oracle Fixes & Solutions

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RMAN backup and Data Pump EXPDP export fail to a NFS mount with «Linux-x86_64 Error: 12: Cannot allocate memory» after installing Exadata 11.2.3.2.1 image (Doc ID 1532488.1)

Attempting RMAN backups or Data Pump EXPDP exports to a NFS mount point may fail. Below are possible error messages:

Linux-x86_64 Error: 12: Cannot allocate memory
Additional information: 3
channel ORA_DISK_7 disabled, job failed on it will be run on another channel
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on ORA_DISK_8 channel at 02/11/2013 15:15:20
ORA-19504: failed to create file «/u01/app/oracle/admin/abc/backup/xyz_1_1»
ORA-27044: unable to write the header block of file
Linux-x86_64 Error: 12: Cannot allocate memory
Additional information: 3

Data Pump Job

ORA-39097: Data Pump job encountered unexpected error -31644
ORA-39065: unexpected master process exception in FILE
ORA-31644: unable to position to block number 2 in dump file «/data/oracle/abc/xyz.dmp»
ORA-19502: write error on file «/data/oracle/abc/xyz.dmp», block number 1 (block size=4096)
ORA-27072: File I/O error
Linux-x86_64 Error: 12: Cannot allocate memory
Additional information: 4

Data Pump Job

ORA-39097: Data Pump job encountered unexpected error -31644
ORA-39065: unexpected master process exception in FILE
ORA-31644: unable to position to block number 2 in dump file «/nas_exprd/oraexp/abc/xyz.dmp»
ORA-19502: write error on file «/nas_exprd/oraexp/abc/xyz.dmp», block number 1 (block size=4096)
ORA-27061: waiting for async I/Os failed
Linux-x86_64 Error: 12: Cannot allocate memory
Additional information: -1
Additional information: 4096

Changes

Recently upgraded the database nodes to 11.2.3.2.1 image and current kernel is 2.6.32-400.11.1.el5uek

Cause

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ORA-27102: out of memory

We’re facing an Out Memory Problem with an Oracle database SE 12c Release 1 (deployed as a Docker container) . The only information that I have is this one:

Caused by: java.sql.SQLRecoverableException: ORA-01034: ORACLE not available ORA-27102: out of memory Linux-x86_64 Error: 12: Cannot allocate memory Additional information: 2673 Additional information: 360449 Additional information: 1627389952

I try to google the ORA-27102 but the forum discussions are to broad (to implement any solution will be like shotting in the dark) . I don’t know how to narrow my problem? Does anyone know what those additional information codes are (I tried to google them without success) ?? Any suggestion will be appreciated!

The value for memory may be too high, check all your memory related parameters in spfile/ifile, modify them accordingly to your system and you should be able to start Oracle.

Oracle starts okey, the problem happens when the application is running and interacting with the database.

1 Answer 1

I’m presuming you don’t have metalink as this was the first hit:

Instance not reachable and process dying.

Background processes are dying and oracle is unable to spawn new processes. Clients cannot connect and they receive error:

java.sql.SQLRecoverableException: ORA-01034: ORACLE not available ORA-27102: out of memory Linux-x86_64 Error: 12: Cannot allocate memory Additional information: 2673 Additional information: 488341508 Additional information: 1744830464

When this happens local connections are not possible, but already existing connections continue to work. The problem appears when running backups or complex queries then it disappears.

No specific memory related error is reported on the server log just logs like this one:

Errors in file /u01/app/oracle/diag/rdbms/alma/ALMA2/trace/ALMA2_cjq0_6234.trc: Process J000 died, see its trace file Thu Apr 06 14:25:40 2017 kkjcre1p: unable to spawn jobq slave process

 This is was investigated in
  Bug 24921392 CJQ FAILED TO SPAWN SLAVE PROCESS KKJCRE1P: UNABLE TO SPAWN JOBQ SLAVE PROCESS
 
 The problem may be seen if MEMORY_TARGET is used and memory or swap space is under pressure.
 Apply patch 24921392 if available
 As a workaround, increase memory and/or swap on the affected system to avoid the issue.
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