分类目录归档：ORA-xxxxx

ORA-00600[729]分析和处理方法

发表于 2012 年 4 月 6 日 由 惜分飞

alert中ORA-00600[729]

Fri Apr  6 04:30:04 2012
Errors in file /oracle9/app/admin/crm/udump/crm2_ora_2548236.trc:
ORA-00600: internal error code, arguments: [729], [1067976], [space leak], [], [], [], [], []

a. the first bracketed number [729] is the common argument for space leak problems.
b. the second number [1067976] is the number of bytes leaked by the error.
c. the third argument is always [space leak].

分析trace文件

*** 2012-04-06 04:30:04.656
*** SESSION ID:(1361.35607) 2012-04-06 04:30:04.648
******** ERROR: UGA memory leak detected 1067976 ********
******************************************************
HEAP DUMP heap name="session heap"  desc=1103a05f0

a. the memory was leaked from the UGA area
b. the amount leaked is reported again in the text (1067976 bytes).
c. the above few lines describe this dump as SESSION HEAP with the descriptor 0x1103a05f0.

计算泄露内存大小

******************************************************
HEAP DUMP heap name="session heap"  desc=1103a05f0
 extent sz=0xff80 alt=32767 het=32767 rec=0 flg=3 opc=3
 parent=110009628 owner=700000c3b6f5620 nex=0 xsz=0xff80
EXTENT 0 addr=1107dbf50
  Chunk        1107dbf60 sz=    65392    free      "               "
EXTENT 1 addr=1107cbf50
  Chunk        1107cbf60 sz=    65392    free      "               "
EXTENT 2 addr=110541da0
  Chunk        110541db0 sz=    61312    free      "               "
EXTENT 3 addr=11062ae88
  Chunk        11062ae98 sz=   266264    freeable  "kllcqgf:kllsltb"
EXTENT 4 addr=1105dae88
  Chunk        1105dae98 sz=   266264    freeable  "kllcqgf:kllsltb"
EXTENT 5 addr=110550d48
  Chunk        110550d58 sz=   266264    freeable  "kllcqgf:kllsltb"
EXTENT 6 addr=110500d48
  Chunk        110500d58 sz=   266264    freeable  "kllcqgf:kllsltb"
EXTENT 7 addr=1104e1df0
  Chunk        1104e1e00 sz=      200    perm      "perm           "  alo=200
  Chunk        1104e1ec8 sz=    65192    free      "               "
EXTENT 8 addr=1104c1df0
  Chunk        1104c1e00 sz=    40720    perm      "perm           "  alo=40720
  Chunk        1104cbd10 sz=       56    free      "               "
  Chunk        1104cbd48 sz=      408    freeable  "kcbl_structure_"
  Chunk        1104cbee0 sz=     6952    free      "               "
  Chunk        1104cda08 sz=     2424    freeable  "kllcqc:kllcqslt"
  Chunk        1104ce380 sz=    14832    free      "               "
EXTENT 9 addr=1104d1df0
  Chunk        1104d1e00 sz=    65392    free      "               "
EXTENT 10 addr=1104b1df0
  Chunk        1104b1e00 sz=      544    free      "               "
  Chunk        1104b2020 sz=       88    freeable  "kllcqc:kllcq   "
  Chunk        1104b2078 sz=    64760    free      "               "
EXTENT 11 addr=110427390
  Chunk        1104273a0 sz=    65392    free      "               "
EXTENT 12 addr=110417390
  Chunk        1104173a0 sz=    65392    free      "               "
EXTENT 13 addr=110407390
  Chunk        1104073a0 sz=    65392    free      "               "
EXTENT 14 addr=1103f7390
  Chunk        1103f73a0 sz=    65392    free      "               "
EXTENT 15 addr=1103e7390
  Chunk        1103e73a0 sz=    65392    free      "               "
EXTENT 16 addr=1103d7390
  Chunk        1103d73a0 sz=    65392    free      "               "
EXTENT 17 addr=1103c7390
  Chunk        1103c73a0 sz=      408    free      "               "
  Chunk        1103c7538 sz=     2232    perm      "perm           "  alo=2232
  Chunk        1103c7df0 sz=    62752    free      "               "
EXTENT 18 addr=1103b7390
  Chunk        1103b73a0 sz=    65392    free      "               "
EXTENT 19 addr=110370080
  Chunk        110370090 sz=     2008    perm      "perm           "  alo=2008
  Chunk        110370868 sz=    63384    free      "               "
EXTENT 20 addr=110360098
  Chunk        1103600a8 sz=    20424    perm      "perm           "  alo=20424
  Chunk        110365070 sz=    44944    free      "               "
Total heap size    =  2172616
FREE LISTS:
 Bucket 0 size=56
  Chunk        1104cbd10 sz=       56    free      "               "
 Bucket 1 size=88
 Bucket 2 size=152
 Bucket 3 size=168
 Bucket 4 size=280
  Chunk        1103c73a0 sz=      408    free      "               "
 Bucket 5 size=432
 Bucket 6 size=536
  Chunk        1104b1e00 sz=      544    free      "               "
 Bucket 7 size=1048
 Bucket 8 size=2072
 Bucket 9 size=4120
  Chunk        1104cbee0 sz=     6952    free      "               "
 Bucket 10 size=8216
  Chunk        1104ce380 sz=    14832    free      "               "
 Bucket 11 size=16408
 Bucket 12 size=32792
  Chunk        110365070 sz=    44944    free      "               "
  Chunk        110370868 sz=    63384    free      "               "
  Chunk        1104d1e00 sz=    65392    free      "               "
  Chunk        1103b73a0 sz=    65392    free      "               "
  Chunk        1103c7df0 sz=    62752    free      "               "
  Chunk        1103d73a0 sz=    65392    free      "               "
  Chunk        1103f73a0 sz=    65392    free      "               "
  Chunk        1104073a0 sz=    65392    free      "               "
  Chunk        1104b2078 sz=    64760    free      "               "
  Chunk        1103e73a0 sz=    65392    free      "               "
  Chunk        1104e1ec8 sz=    65192    free      "               "
  Chunk        1104273a0 sz=    65392    free      "               "
  Chunk        1104173a0 sz=    65392    free      "               "
  Chunk        1107cbf60 sz=    65392    free      "               "
  Chunk        110541db0 sz=    61312    free      "               "
  Chunk        1107dbf60 sz=    65392    free      "               "
 Bucket 13 size=65560
 Bucket 14 size=131096
 Bucket 15 size=262168
 Bucket 16 size=524312
 Bucket 17 size=2097176
Total free space   =  1039056
UNPINNED RECREATABLE CHUNKS (lru first):
PERMANENT CHUNKS:
  Chunk        1104e1e00 sz=      200    perm      "perm           "  alo=200
  Chunk        1104c1e00 sz=    40720    perm      "perm           "  alo=40720
  Chunk        1103c7538 sz=     2232    perm      "perm           "  alo=2232
  Chunk        110370090 sz=     2008    perm      "perm           "  alo=2008
  Chunk        1103600a8 sz=    20424    perm      "perm           "  alo=20424
Permanent space    =    65584
******************************************************

FREEABLE and RECREATABLE chunks总和等于1067976 byte(leaked memory)

会话状态分析

*** 2012-04-06 04:30:04.658
ksedmp: internal or fatal error
ORA-00600: internal error code, arguments: [729], [1067976], [space leak], [], [], [], [], []
----- Call Stack Trace -----
calling              call     entry                argument values in hex      
location             type     point                (? means dubious value)     
-------------------- -------- -------------------- ----------------------------
ksedmp+0148          bl       ksedst               1029746FC ?
ksfdmp+0018          bl       01FD4014             
kgeriv+0118          bl       _ptrgl               
kgesiv+0080          bl       kgeriv               000000001 ? 000000002 ?
                                                   1100610D0 ? 000000000 ?
                                                   00000000A ?
ksesic2+005c         bl       kgesiv               FFFFFFFFFFF9320 ? 1101FAF78 ?
                                                   110006308 ? 1103A0818 ?
                                                   000000009 ?
ksmuhe+026c          bl       ksesic2              2D9000002D9 ? 000000000 ?
                                                   000104BC8 ? 000000001 ?
                                                   00000000A ? 103164968 ?
                                                   12E0BE826D694B2F ?
                                                   000000000 ?
ksmugf+0214          bl       ksmuhe               110002A20 ? 110061238 ?
                                                   000000009 ? 102975DE8 ?
ksuxds+170c          bl       ksmugf               000000000 ? 020000000 ?
                                                   1029754D0 ?
ksudel+006c          bl       ksuxds               700000C3B6F5620 ? 100000001 ?
opilof+03dc          bl       01FD427C             <--表示logoff
opiodr+08cc          bl       _ptrgl               
ttcpip+0cc4          bl       _ptrgl               
opitsk+0d60          bl       ttcpip               11000CF90 ? 000000000 ?
                                                   000000000 ? 000000000 ?
                                                   000000000 ? 000000000 ?
                                                   000000000 ? 000000000 ?
opiino+0758          bl       opitsk               000000000 ? 000000000 ?
opiodr+08cc          bl       _ptrgl               
opidrv+032c          bl       opiodr               3C00000018 ? 4101FAF78 ?
                                                   FFFFFFFFFFFF7B0 ? 0A000F350 ?
sou2o+0028           bl       opidrv               3C0C000000 ? 4A00E8B50 ?
                                                   FFFFFFFFFFFF7B0 ?
main+0138            bl       01FD3A28             
__start+0098         bl       main                 000000000 ? 000000000 ?
 
--------------------- Binary Stack Dump ---------------------
………………
 ----------------------------------------
    SO: 700000c3b6f5620, type: 4, owner: 700000c3c987a18, flag: INIT/-/-/0x00
--flag: (41) USR/- BSY/-/-/DEL/-/- shows that the session has been deleted
    (session) trans: 0, creator: 700000c3c987a18, flag: (41) USR/- BSY/-/-/DEL/-/- 
              DID: 0002-0927-01D67CAD, short-term DID: 0000-0000-00000000
              txn branch: 0
              oct: 0, prv: 0, sql: 700000caf2c0e30, psql: 700000caf2c0e30, user: 52/MONITOR
    O/S info: user: oracrm, term: , ospid: 1490968, machine: zwq_crm2
              program: exp@zwq_crm2 (TNS V1-V3)
    last wait for 'SQL*Net message from client' blocking sess=0x0 seq=59222 wait_time=1537
                driver id=54435000, #bytes=1, =0
    temporary object counter: 0
    ----------------------------------------

a.在logoff的时候发生UGA中的session heap发生内存泄露
b.该进程是一个exp导出数据库程序，并且该程序已经被释放

出现ORA-00600[729]原因

Memory leak problems generally occur when Oracle is trying to free memory allocated to a process. 
The memory leak dump is generally discovered during session logoff, 
when Oracle frees the heaps that are allocated for the user process. 

When a user connects to Oracle, a user process is created and at that time the heap is allocated. 
Every process will have its own memory heap.

The memory is organized in to heaps and every heap consists of one or more extents. 
Each extent contains a series of contiguous memory chunks, and these chunks can be 
either FREE or ALLOCATED. The Generic Heap Manager takes care of allocating and deallocating
 the memory chunks, with the help of FREE LISTS and LRU LISTS. 

Chunk types are as follows:

1. FREE 
2. FREEABLE 
3. RECREATABLE 
4. PERMANENT 
5. FREEABLE WITH MARK 

It is not mandatory that each extent contain only one type of chunk. 
Extents can contain various types of chunks. When processes require memory chunks, 
they are allocated as needed. Oracle keeps track of the amount of memory allocated for the process internally.

When the process terminates, all of the memory that has been allocated for the process is automatically released. 
When the memory is released the allocated heaps are freed. Generally, 
when the heap is freed the only chunks that the process should identify 
as allocated are the PERMANENT chunks and FREE chunks on the freelist. 
If the process finds there are still FREEABLE or RECREATABLE chunks remaining, 
then the process has not properly deallocated the memory. 
This situation is considered a space leak.

ORA-00600[729]处理方案

1. If there are no other errors reported at the same time, 
this may be a case where the error was a rare occurrence and can be safely ignored. 
As a rule of thumb, leaks less than 90,000 bytes in size are considered to be of low significance. 
The solution in this case is to set event 10262 (see below). 

a. Set the following event in init.ora parameter file. 
   This example disables reporting for space leaks less than 90000 bytes:
event = "10262 trace name context forever, level 90000"

b. Stop and restart the database.

If the level is set to 1, space leak checking is disabled. 
This is not advised because large memory leaks will be missed.

If the event is set to a value greater than 1, 
any space leak up to the number specified in the event is ignored.

2. Is the leak in the SGA? The alert.log should be reviewed for additional 
errors such as ORA-4030 and ORA-4031 to ensure there are no additional 
problems with the shared pool or operating system memory. 

3. Does the error reproduce with a given task? If so, this is 
a case that should be investigated further because the leak could be a known bug. 
See Note 31056.1 ORA-600 [729] UGA Space Leak for a list of known bugs and fixes.

参考:Understanding and Diagnosing ORA-600 [729] Space Leak Errors [ID 403584.1]

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ORA-00001: unique constraint (PERFSTAT.STATS$SQL_SUMMARY_PK) violated

发表于 2012 年 4 月 5 日 由 惜分飞

出现如下错误(ORA-00001: unique constraint (PERFSTAT.STATS$SQL_SUMMARY_PK) violated)

Oracle9i Enterprise Edition Release 9.2.0.6.0 - 64bit Production
With the Partitioning option
JServer Release 9.2.0.6.0 - Production
ORACLE_HOME = /oracle9/app/product/9.2.0
System name:    AIX
Node name:      zwq_bill_1
Release:        1
Version:        6
Machine:        00F64FF34C00
Instance name: bill1
Redo thread mounted by this instance: 1
Oracle process number: 30
Unix process pid: 46531060, image: oracle@zwq_bill_1 (J000)

*** SESSION ID:(218.47085) 2012-04-02 19:30:45.561
*** 2012-04-02 19:30:45.561
ORA-12012: error on auto execute of job 1
ORA-00001: unique constraint (PERFSTAT.STATS$SQL_SUMMARY_PK) violated
ORA-06512: at "PERFSTAT.STATSPACK", line 1361
ORA-06512: at "PERFSTAT.STATSPACK", line 2471
ORA-06512: at "PERFSTAT.STATSPACK", line 91
ORA-06512: at line 1

这个是oracle的一个Bug 2784796,提供解决方法有
1.run the statspack at level 0
2.restart the instance
3.set cursor sharing to exact (probably not feasible)
4.禁用主键，创建合适非唯一index

ALTER TABLE PERFSTAT.STATS$SQL_SUMMARY MODIFY 
CONSTRAINT STATS$SQL_SUMMARY_PK DISABLE NOVALIDATE;

5.修改STATS$V_$SQLXS视图
分析思路如下:
1)根据主键冲突找到主键包含列(spctab.sql)

create table          STATS$SQL_SUMMARY
(snap_id              number(6)        not null
,dbid                 number           not null
,instance_number      number           not null
,text_subset          varchar2(31)     not null
,sql_text             varchar2(1000)
,sharable_mem         number
,sorts                number
,module               varchar2(64)
,loaded_versions      number
,fetches              number
,executions           number
,loads                number
,invalidations        number
,parse_calls          number
,disk_reads           number
,buffer_gets          number
,rows_processed       number
,command_type         number
,address              raw(8)
,hash_value           number
,version_count        number
,cpu_time             number
,elapsed_time         number
,outline_sid          number
,outline_category     varchar2(64)
,child_latch          number
--注意下面5列构成主键
,constraint STATS$SQL_SUMMARY_PK primary key
    (snap_id, dbid, instance_number, hash_value, text_subset)
 using index tablespace &&tablespace_name
   storage (initial 1m next 1m pctincrease 0)
,constraint STATS$SQL_SUMMARY_FK foreign key (snap_id, dbid, instance_number)
                references STATS$SNAPSHOT on delete cascade
)tablespace &&tablespace_name
storage (initial 1m next 1m pctincrease 0) pctfree 5 pctused 40;

2)找到该表插入数据(spcpkg.sql)

insert into stats$sql_summary
            ( snap_id
            , dbid
            , instance_number
            , text_subset
            , sharable_mem
            , sorts
            , module
            , loaded_versions
            , fetches
            , executions
            , loads
            , invalidations
            , parse_calls
            , disk_reads
            , buffer_gets
            , rows_processed
            , command_type
            , address
            , hash_value
            , version_count
            , cpu_time
            , elapsed_time
            , outline_sid
            , outline_category
            , child_latch
            )
       select l_snap_id
            , p_dbid
            , p_instance_number
            , substrb(sql_text,1,31)
            , sharable_mem
            , sorts
            , module
            , loaded_versions
            , fetches
            , executions
            , loads
            , invalidations
            , parse_calls
            , disk_reads
            , buffer_gets
            , rows_processed
            , command_type
            , address
            , hash_value
            , version_count
            , cpu_time
            , elapsed_time
            , outline_sid
            , outline_category
            , child_latch
         from stats$v$sqlxs
        where is_obsolete = 'N'
          and (   buffer_gets   > l_buffer_gets_th
               or disk_reads    > l_disk_reads_th
               or parse_calls   > l_parse_calls_th
               or executions    > l_executions_th
               or sharable_mem  > l_sharable_mem_th
               or version_count > l_version_count_th
              );

3)找出stats$v$sqlxs对象(spcusr.sql)

create or replace view STATS$V_$SQLXS as
select max(sql_text)        sql_text
     , sum(sharable_mem)    sharable_mem
     , sum(sorts)           sorts
     , min(module)          module
     , sum(loaded_versions) loaded_versions
     , sum(fetches)         fetches
     , sum(executions)      executions
     , sum(loads)           loads
     , sum(invalidations)   invalidations
     , sum(parse_calls)     parse_calls
     , sum(disk_reads)      disk_reads
     , sum(buffer_gets)     buffer_gets
     , sum(rows_processed)  rows_processed
     , max(command_type)    command_type
     , address              address
     , hash_value           hash_value
     , count(1)             version_count
     , sum(cpu_time)        cpu_time
     , sum(elapsed_time)    elapsed_time
     , max(outline_sid)     outline_sid
     , max(outline_category) outline_category
     , max(is_obsolete)     is_obsolete
     , max(child_latch)     child_latch
  from v$sql
 group by hash_value, address;
create or replace public synonym STATS$V$SQLXS for STATS$V_$SQLXS;

4)通过这里可以看出，要是的STATS$SQL_SUMMARY主键不重复，只要是的STATS$V_$SQLXS查询出来的记录唯一，所以解决方案就是在STATS$V_$SQLXS视图中增加下列条件，确保查询出来的记录唯一，从而不会发生主键冲突

where 
( plan_hash_value > 0 
or executions > 0
or parse_calls > 0
or disk_reads > 0
or buffer_gets > 0
)

该bug在10g中修复，对于不能及时升级的数据库，建议采用第五种方法解决问题，比较治标治本，对业务基本上无影响

发表在 ORA-xxxxx | 标签为 , | 一条评论

linux中不能ping通hostname可能存在问题

发表于 2012 年 4 月 3 日 由 惜分飞

不能ping通hostname

[oracle@xifenfei ~]$ hostname
xifenfei
[oracle@xifenfei ~]$ ping xifenfei
ping: unknown host xifenfei
[oracle@xifenfei ~]$ nslookup
> xifenfei
;; connection timed out; no servers could be reached
> exit
[oracle@xifenfei ~]$ more /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1    xifenfei1 localhost.localdomain localhost

10G中存在问题

[oracle@xifenfei ~]$ sqlplus / as sysdba

SQL*Plus: Release 10.2.0.1.0 - Production on Tue Apr 3 01:54:22 2012

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

Connected to an idle instance.
--sqlplus连接非常慢

SQL> startup
ORA-00600: internal error code, arguments: [keltnfy-ldmInit], [46], [1], [], [], [], [], []
--ORA-00600[keltnfy-ldmInit]错误

11G中存在问题

[oracle@xifenfei ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Tue Apr 3 02:02:29 2012

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected.
SQL> startup
ORA-00119: invalid specification for system parameter LOCAL_LISTENER
ORA-00130: invalid listener address '(ADDRESS=(PROTOCOL=TCP)(HOST=xifenfei)(PORT=1521))'

--因为不能ping通xifenfei，提示LOCAL_LISTENER错误

--修改pfile文件
local_listener='(ADDRESS=(PROTOCOL=TCP)(HOST=127.0.0.1)(PORT=1521))'

--启动数据库
SQL> startup pfile='/tmp/pfile'
ORACLE instance started.

Total System Global Area  368263168 bytes
Fixed Size                  1345016 bytes
Variable Size             306186760 bytes
Database Buffers           54525952 bytes
Redo Buffers                6205440 bytes
Database mounted.
Database opened.

[oracle@xifenfei ~]$ ps -ef|grep ora_
oracle    5960     1  0 02:09 ?        00:00:00 ora_pmon_ora11g
oracle    5964     1  0 02:09 ?        00:00:00 ora_psp0_ora11g
oracle    5970     1  1 02:09 ?        00:00:00 ora_vktm_ora11g
oracle    5976     1  0 02:09 ?        00:00:00 ora_gen0_ora11g
oracle    5980     1  0 02:09 ?        00:00:00 ora_diag_ora11g
oracle    5984     1  0 02:09 ?        00:00:00 ora_dbrm_ora11g
oracle    5988     1  0 02:09 ?        00:00:00 ora_dia0_ora11g
oracle    5992     1  0 02:09 ?        00:00:00 ora_mman_ora11g
oracle    5996     1  0 02:09 ?        00:00:00 ora_dbw0_ora11g
oracle    6000     1  0 02:09 ?        00:00:00 ora_lgwr_ora11g
oracle    6004     1  0 02:09 ?        00:00:00 ora_ckpt_ora11g
oracle    6008     1  0 02:09 ?        00:00:00 ora_smon_ora11g
oracle    6012     1  0 02:09 ?        00:00:00 ora_reco_ora11g
oracle    6016     1  0 02:09 ?        00:00:00 ora_mmon_ora11g
oracle    6020     1  0 02:09 ?        00:00:00 ora_mmnl_ora11g
oracle    6028     1  0 02:09 ?        00:00:00 ora_s000_ora11g
oracle    6055     1  0 02:10 ?        00:00:00 ora_p000_ora11g
oracle    6059     1  0 02:10 ?        00:00:00 ora_p001_ora11g
oracle    6063     1  0 02:10 ?        00:00:00 ora_arc0_ora11g
oracle    6069     1  0 02:10 ?        00:00:00 ora_arc1_ora11g
oracle    6073     1  0 02:10 ?        00:00:00 ora_arc2_ora11g
oracle    6077     1  0 02:10 ?        00:00:00 ora_arc3_ora11g
oracle    6081     1  0 02:10 ?        00:00:00 ora_qmnc_ora11g
oracle    6089     1  0 02:10 ?        00:00:00 ora_q000_ora11g
oracle    6093     1  0 02:10 ?        00:00:00 ora_q001_ora11g
oracle    6141     1  0 02:11 ?        00:00:00 ora_d000_ora11g
oracle    6145     1  2 02:11 ?        00:00:00 ora_cjq0_ora11g
--数据库启动正常

[oracle@xifenfei ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Tue Apr 3 02:10:37 2012

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected.
SQL> show parameter local_listener;
ORA-01012: not logged on
Process ID: 0
Session ID: 0 Serial number: 0
--sqlplus不能操作，而且sqlplus登录非常慢

监听异常

--监听配置文件
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.10)(PORT = 1522))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1522))
    )
  )
SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
     (GLOBAL_DBNAME = ora11g)
     (ORACLE_HOME = /u01/oracle/oracle/product/11.2.0/db_1)
     (SID_NAME = ora11g)
    )
  )
--启动监听
[oracle@xifenfei ~]$ lsnrctl start

LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 03-APR-2012 02:19:52

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

Starting /u01/oracle/oracle/product/11.2.0/db_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 11.2.0.3.0 - Production
System parameter file is /u01/oracle/oracle/product/11.2.0/db_1/network/admin/listener.ora
Log messages written to /u01/oracle/diag/tnslsnr/xifenfei/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.10)(PORT=1522)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1522)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.10)(PORT=1522)))
--一直处于等待状态

--客户端登录
C:\Users\XIFENFEI>sqlplus sys/xifenfei@192.168.1.10:1522/ora11g

SQL*Plus: Release 11.2.0.3.0 Production on 星期二 4月 3 12:48:15 2012

Copyright (c) 1982, 2011, Oracle.  All rights reserved.
--一直hang住

[root@xifenfei admin]# netstat -an|grep 1522
tcp        0      0 192.168.1.10:1522           0.0.0.0:*                   LISTEN      
tcp      260      0 192.168.1.10:1522           192.168.1.1:51977           ESTABLISHED 
tcp        0      0 192.168.1.10:24317          192.168.1.10:1522           ESTABLISHED 
tcp      198      0 192.168.1.10:1522           192.168.1.10:24317          ESTABLISHED 
--这里显示已经连接

建议:在修改主机名时要慎重，修改的时候要确保/etc/hosts和/etc/sysconfig/network文件都被正确修改

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