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Home -> Community -> Usenet -> c.d.o.server -> Ora816 - 100% CPU usage after Import
Hi boys,
I've a great problem on a Linux Box Red Hat 7.2 with Oracle 817 with patch
(hardware: P3 1000 Mhz - 512 MbRam).
Before installing the Linux Box mi database worked on a Ora 816 (on the same
hardware) on WinNT (SerPack 6a).
In order to migrate DB to the new OS I've used the export utility from the
command prompt.
After the installation of new enviroment I've operate the Import ( from
Linux shell command line) of .dmp file (160 Mb) and all seems to be done
very well.
After installing the ERP procedure that uses Oracle DB I've immediately
verified an incredible slowly performance in quite simple query (with order
by) in a 50.000 row table, (this query in NT environment takes arount 50
sec. with a 99% CPU time - in the new environment takes around 28 minutes
with 98 % of CPU time ad around 14% of memory). Other that situation we have
verified that the whole operation in DB was greatly decrease after import.
I've tried to modify a lots of time the init file but the increase of
performance was imperceptible.
I've read in some posts that it's possible that the recreation of the DB
dictionary indexes during import was failed ant that must ricreate ( or
optimizate ) with some ORACLE command, that I don't know.
If exist some command to help me in this situation, please post it.
Thanks for attention.
Francesco Ortolani
P.S.
I'm sorry for my english... I'm italian :-)
db_name = "colfi"
instance_name = colfi
service_names = colfi
control_files = ("/home/oracle/oradata/colfi/control01.ctl", "/home/oracle/oradata/colfi/control02.ctl", "/home/oracle/oradata/colfi/control03.ctl")
db_files=1024
open_cursors = 300
#open_cursors = 256
max_enabled_roles = 30
db_file_multiblock_read_count = 32
db_block_buffers = 45000
shared_pool_size = 48321843
# shared_pool_size = 9000000
large_pool_size = 614400
java_pool_size = 0
log_checkpoint_interval = 10000
log_checkpoint_timeout = 1800
processes = 150
#processes = 100
log_buffer = 163840
#log_buffer = 32768
parallel_max_servers = 5
max_dump_file_size = 10240
rollback_segments = ( rbs0, rbs1, rbs2, rbs3, rbs4, rbs5, rbs6, rbs7, rbs8, rbs9, rbs10, rbs11, rbs12, rbs13, rbs14, rbs15 )
background_dump_dest = /home/oracle/admin/colfi/bdump
core_dump_dest = /home/oracle/admin/colfi/cdump
resource_manager_plan = system_plan
user_dump_dest = /home/oracle/admin/colfi/udump
db_block_size = 8192
remote_login_passwordfile = exclusive
os_authent_prefix = ""
job_queue_processes = 2
#job_queue_processes =1
job_queue_interval = 30
distributed_transactions = 500
open_links = 4
mts_dispatchers = "(PROTOCOL=TCP)(SER=MODOSE)" mts_dispatchers = "(PROTOCOL=TCP)(PRE=oracle.aurora.server.SGiopServer)"
dml_locks = 748
compatible = "8.1.0"
sort_area_size = 65536
Received on Thu Nov 21 2002 - 06:15:11 CST
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