LGWR: terminating instance due to error 227

I tried logging onto my database through sqlplus and got the following error
ORA-01092: Oracle instance terminated. Disconnecttion forced

I therefore went to the dos prompt to connect to server manager to get it started but it did not. Below is what I did:

c:\oracle\ora81\bin>set oracle_sid=orcl
c:\oracle\ora81\bin>svrmgrl
SVRMGR>connect internal
SVRMGR> shutdown
ORA-03114: not connected to ORACLE
SVRMGR> startup
ORA-01031: insufficient privileges
SVRMGR> connect internal
Connected.
SVRMGR> startup
ORA-01081: cannot start already-running ORACLE - shut it down first
SVRMGR> connect internal
Connected.
SVRMGR> STARTUP FORCE
ORACLE instance started.
Total System Global Area 38322124 bytes
Fixed Size 65484 bytes
Variable Size 21405696 bytes
Database Buffers 16777216 bytes
Redo Buffers 73728 bytes
Database mounted.
ORA-03113: end-of-file on communication channel

NOTE:
I'm running small databases on this machine.
O/S= WINDOWS NT
ORACLE VERSION=8.1.5.0.0. oracle 8i Enterprise edition

ALert log shows-

Starting ORACLE instance (force)
License high water mark = 3
Fri Apr 20 15:21:34 2001
Instance terminated by USER, pid = 211
Starting up ORACLE RDBMS Version: 8.1.5.0.0.
System parameters with non-default values:
processes = 200
shared_pool_size = 15728640
java_pool_size = 20971520
control_files = D:\Oracle\oradata\orcl\control01.ctl, D:\Oracle\oradata\orcl\control02.ctl
db_block_buffers = 8192
db_block_size = 2048
compatible = 8.1.0
log_buffer = 32768
log_checkpoint_interval = 10000
log_checkpoint_timeout = 1800
db_files = 1024
db_file_multiblock_read_count= 8
control_file_record_keep_time= 0
remote_login_passwordfile= EXCLUSIVE
global_names = TRUE
distributed_transactions = 500
service_names = orcl
instance_name = orcl
mts_dispatchers = (ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))(DIS=1)(SES=254)(CON=254)(TIC=15)(POO=NO)(MUL=NO)(LIS=(ADDRESS_ LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=PNPKEY))(ADDRESS=(PROTOCOL=TCP)(HOST=127.0.0.1)(PORT=1521))(ADDRESS =(PROTOCOL=IPC)(KEY=orcl))))(PRE=oracle.aurora.server.SGiopServer)
mts_servers = 1
open_links = 4
db_name = orcl
ifile = D:\Oracle\admin\orcl\pfile\init.ora
os_authent_prefix =
job_queue_processes = 2
job_queue_interval = 10
parallel_max_servers = 5
background_dump_dest = D:\Oracle\admin\orcl\bdump
user_dump_dest = D:\Oracle\admin\orcl\udump
max_dump_file_size = 10240
oracle_trace_collection_name=
PMON started with pid=2
DBW0 started with pid=3
LGWR started with pid=4
CKPT started with pid=5
SMON started with pid=6
RECO started with pid=7
SNP0 started with pid=8
SNP1 started with pid=9
Fri Apr 20 15:21:37 2001
starting up 1 shared server(s) ...
starting up 1 dispatcher(s) for network protocol '(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))'...
Fri Apr 20 15:21:37 2001
alter database mount
Fri Apr 20 15:21:42 2001
Successful mount of redo thread 1, with mount id 955396998.
Fri Apr 20 15:21:42 2001
Database mounted in Exclusive Mode.
Completed: alter database mount
Fri Apr 20 15:21:42 2001
alter database open
Picked broadcast on commit scheme to generate SCNs
Fri Apr 20 15:21:42 2001
Rolling back half complete log switch of thread 1
***
Corrupt block relative dba: 0x00000075 file=0. blocknum=117.
Bad header found during controlfile block read
Data in bad block - type:255. format:255. rdba:0xffffffff
last change scn:0xffff.ffffffff seq:0xff flg:0xff
consistancy value in tail 0xffffffff
check value in block header: 0xffff, calculated check value: 0x0
spare1:0xff, spare2:0xff, spare2:0xffff
LGWR: terminating instance due to error 227
Instance terminated by LGWR, pid = 153
Fri Apr 20 15:32:52 2001
Starting ORACLE instance (force)
License high water mark = 3

1) try to reboot your server, maybe it'll fix (hey it's NT after all !!!) ;))
2) if this doesn't work, you'll have to rebuild your controlfiles from a trace ...

Quote:

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Originally posted by pipo
1) try to reboot your server, maybe it'll fix (hey it's NT after all !!!) ;))

--I rebooted the system but didn't work.

2) if this doesn't work, you'll have to rebuild your controlfiles from a trace ...

---

--I connected using svrmgrl & mount the instance, it show ora-03113 end of file on communication channel error.
Then i write alter database backup controlfile to trace ,it gives ora-03114-not connected to oracle.
Without mounting the instance ,i can't issue the above command.

What is solution?

Dear Rahul, 22nd April 2001 14:18 hrs chennai

For the end of Communication channel oracle DOC suggest like this

ORA-03113 end-of-file on communication channel

Action: If this message occurs during a connection attempt, check the setup files for the appropriate Net8 driver and confirm Net8 software is correctly installed on the server. If the message occurs after a connection is well established, and the error is not due to a physical failure, check if a trace file was generated on the server at failure time. Existence of a trace file may suggest an Oracle internal error that requires the assistance of customer support.

Why dont you try setting up the net8 driver once again.?

it looks from the alert log the control file header and datafile header mismatch or block corruption try contacting oracle i am really sorry to say i have not experienced such a problem but interested in knowing the exact solution.

Cheers

Padmam

Quote:

---

Originally posted by padmam
Dear Rahul, 22nd April 2001 14:18 hrs chennai

For the end of Communication channel oracle DOC suggest like this

ORA-03113 end-of-file on communication channel

Action: If this message occurs during a connection attempt, check the setup files for the appropriate Net8 driver and confirm Net8 software is correctly installed on the server. If the message occurs after a connection is well established, and the error is not due to a physical failure, check if a trace file was generated on the server at failure time. Existence of a trace file may suggest an Oracle internal error that requires the assistance of customer support.

Why dont you try setting up the net8 driver once again.?

it looks from the alert log the control file header and datafile header mismatch or block corruption try contacting oracle i am really sorry to say i have not experienced such a problem but interested in knowing the exact solution.

Cheers

Padmam

---

Finally i recovered the database-I have followed the following steps-

Connect using svrmgrl from dos prompt.
svrmgr> startup nomount;
svrmgr> alter database mount;
svrmgr> alter database backup controlfile to trace;
svrmgr> shutdown;
svrmgr> startup nomount;
Execeuted the create contol file command which is created in ora81\udump\
svrmgr> recover database;
svrmgr> alter database open;
svrmgr> shutdown;

Cheers
Rahul