LMS1 (ospid: 7829): terminating the instance due to error 4031 ????

Question

Single Instance out of 5 node cluster Oracle 11g 11.1.0.7 crashed with the below error..Plz help
Errors in file /ora00/app/oracle/diag/rdbms/ngprod/ngprod2/trace/ngprod2_lms1_7829.trc:
ORA-04031: unable to allocate 4160 bytes of shared memory ("shared pool","unknown object","sga heap(1,0)","gcs dynamic s")
LMS1 (ospid: 7829): terminating the instance due to error 4031
System state dump is made for local instance
System State dumped to trace file /ora00/app/oracle/diag/rdbms/ngprod/ngprod2/trace/ngprod2_diag_7805.trc
Mon Oct 26 22:45:16 2009
Errors in file /ora00/app/oracle/diag/rdbms/ngprod/ngprod2/trace/ngprod2_rbal_7847.trc (incident=216218):
ORA-04031: unable to allocate bytes of shared memory ("","","","")
Incident details in: /ora00/app/oracle/diag/rdbms/ngprod/ngprod2/incident/incdir_216218/ngprod2_rbal_7847_i216218.trc
Mon Oct 26 22:45:23 2009
Instance terminated by LMS1, pid = 7829
Thanks in advance
Gagan

Answer 1

$ oerr ora 04031
04031, 00000, "unable to allocate %s bytes of shared memory (\"%s\",\"%s\",\"%s\",\"%s\")"
// *Cause:  More shared memory is needed than was allocated in the shared
//          pool.
// *Action: If the shared pool is out of memory, either use the
//          DBMS_SHARED_POOL package to pin large packages,
//          reduce your use of shared memory, or increase the amount of
//          available shared memory by increasing the value of the
//          initialization parameters SHARED_POOL_RESERVED_SIZE and
//          SHARED_POOL_SIZE.
//          If the large pool is out of memory, increase the initialization
//          parameter LARGE_POOL_SIZE.ORA-04031 means that your shared pool size part of the SGA is too small. You may need to increase SHARED_POOL_SIZE which defines a minimum size for shared pool size.
What is the output of
show parameter shared_pool
show parameter sga
show parameter memory