Oracle诊断案例-SGA与Swap之一

link:

http://www.eygle.com/case/sga1.htm

案例描述:

用户报告，服务器启动一段时间以后，无法建立数据库连接

重新启动几分钟以后，再次无法连接

系统无法正常使用.

1.登陆系统

SunOS 5.8

Password:

Last login: Tue Mar 23 13:56:59 from 172.16.31.41

Sun Microsystems Inc. SunOS 5.8 Generic Patch October 2001

You have new mail.

2.su 为Oracle用户

检查启动的Oracle进程

发现后台进程正常，有一定量的用户连接

wapplatform:/>su - oracle

Sun Microsystems Inc. SunOS 5.8 Generic Patch October 2001

You have new mail.

/export/home1/oracle>ls

admin codesyndealt31 exp.sh local.cshrc local.profile oraclebak oui v6_database

app exp.log jre local.login nsmail oradata swan

export/home1/oracle>cd admin

/export/home1/oracle/admin>ps -ef|grep ora

oracle 25269 25258 0 13:58:36 pts/3 0:00 grep ora

oracle 25257 24906 0 13:58:31 pts/4 0:00 vi alert_HSWAPDB.log

oracle 25267 1 1 13:58:34 ? 0:00 oracleHSWAPDB (LOCAL=NO)

oracle 25184 1 0 13:56:57 ? 0:00 ora_p007_HSWAPDB

oracle 25182 1 0 13:56:57 ? 0:00 ora_p006_HSWAPDB

oracle 25193 1 0 13:57:03 ? 0:01 oracleHSWAPDB (LOCAL=NO)

oracle 25209 1 0 13:57:09 ? 0:00 oracleHSWAPDB (LOCAL=NO)

oracle 25176 1 0 13:56:57 ? 0:00 ora_p003_HSWAPDB

oracle 25180 1 0 13:56:57 ? 0:00 ora_p005_HSWAPDB

oracle 25172 1 0 13:56:56 ? 0:00 ora_p001_HSWAPDB

oracle 25178 1 0 13:56:57 ? 0:00 ora_p004_HSWAPDB

oracle 25170 1 0 13:56:56 ? 0:00 ora_p000_HSWAPDB

oracle 24254 24240 0 12:08:25 pts/2 0:00 -ksh

oracle 25174 1 0 13:56:56 ? 0:00 ora_p002_HSWAPDB

oracle 25244 1 1 13:58:23 ? 0:00 oracleHSWAPDB (LOCAL=NO)

oracle 25218 1 0 13:57:23 ? 0:00 oracleHSWAPDB (LOCAL=NO)

oracle 25159 1 0 13:56:42 ? 0:02 ora_qmn0_HSWAPDB

oracle 25230 1 0 13:57:40 ? 0:01 oracleHSWAPDB (LOCAL=NO)

oracle 25161 1 0 13:56:42 ? 0:00 ora_s000_HSWAPDB

oracle 25149 1 0 13:56:41 ? 0:01 ora_lgwr_HSWAPDB

oracle 25157 1 0 13:56:42 ? 0:00 ora_cjq0_HSWAPDB

oracle 24906 3698 0 13:47:47 pts/4 0:00 -ksh

oracle 25153 1 0 13:56:42 ? 0:01 ora_smon_HSWAPDB

oracle 25058 7464 0 13:55:14 pts/1 0:00 -ksh

oracle 25163 1 0 13:56:42 ? 0:00 ora_d000_HSWAPDB

oracle 25155 1 0 13:56:42 ? 0:00 ora_reco_HSWAPDB

oracle 25151 1 0 13:56:41 ? 0:00 ora_ckpt_HSWAPDB

oracle 25145 1 0 13:56:41 ? 0:00 ora_dbw0_HSWAPDB

oracle 25199 1 15 13:57:04 ? 0:49 ora_j000_HSWAPDB

oracle 4149 4146 0 12:05:11 pts/5 0:00 -ksh

oracle 25232 1 0 13:57:41 ? 0:00 oracleHSWAPDB (LOCAL=NO)

oracle 25119 1 0 13:56:29 ? 0:00 oraclehswapdb (LOCAL=NO)

oracle 25075 1 0 13:55:34 ? 0:00 /export/home1/oracle/app/bin/tnslsnr LISTENER -inherit

oracle 24374 4149 0 12:21:56 pts/5 0:00 sqlplus /nolog

oracle 25143 1 0 13:56:41 ? 0:00 ora_pmon_HSWAPDB

oracle 25258 25242 0 13:58:31 pts/3 0:00 -ksh

/export/home1/oracle/admin>ps -ef|grep ora_

oracle 25275 25258 0 13:58:42 pts/3 0:00 grep ora_

oracle 25184 1 0 13:56:57 ? 0:00 ora_p007_HSWAPDB

oracle 25182 1 0 13:56:57 ? 0:00 ora_p006_HSWAPDB

oracle 25176 1 0 13:56:57 ? 0:00 ora_p003_HSWAPDB

oracle 25180 1 0 13:56:57 ? 0:00 ora_p005_HSWAPDB

oracle 25172 1 0 13:56:56 ? 0:00 ora_p001_HSWAPDB

oracle 25178 1 0 13:56:57 ? 0:00 ora_p004_HSWAPDB

oracle 25170 1 0 13:56:56 ? 0:00 ora_p000_HSWAPDB

oracle 25174 1 0 13:56:56 ? 0:00 ora_p002_HSWAPDB

oracle 25159 1 0 13:56:42 ? 0:02 ora_qmn0_HSWAPDB

oracle 25161 1 0 13:56:42 ? 0:00 ora_s000_HSWAPDB

oracle 25149 1 0 13:56:41 ? 0:01 ora_lgwr_HSWAPDB

oracle 25157 1 0 13:56:42 ? 0:00 ora_cjq0_HSWAPDB

oracle 25153 1 0 13:56:42 ? 0:01 ora_smon_HSWAPDB

oracle 25163 1 0 13:56:42 ? 0:00 ora_d000_HSWAPDB

oracle 25155 1 0 13:56:42 ? 0:00 ora_reco_HSWAPDB

oracle 25151 1 0 13:56:41 ? 0:00 ora_ckpt_HSWAPDB

oracle 25145 1 0 13:56:41 ? 0:00 ora_dbw0_HSWAPDB

oracle 25199 1 13 13:57:04 ? 0:51 ora_j000_HSWAPDB

oracle 25143 1 0 13:56:41 ? 0:00 ora_pmon_HSWAPDB

3.检查Alert.log警报日志文件

/export/home1/oracle/admin>ls

hswapdb

/export/home1/oracle/admin>cd *

/export/home1/oracle/admin/hswapdb>ls

bdump cdump create pfile udump

/export/home1/oracle/admin/hswapdb>cd bdump

/export/home1/oracle/admin/hswapdb/bdump>

/export/home1/oracle/admin/hswapdb/bdump>ls -l *.log

-rw-r--r-- 1 oracle dba 813396 Mar 23 13:57 alert_HSWAPDB.log

/export/home1/oracle/admin/hswapdb/bdump>vi *.log

"alert_HSWAPDB.log" 18888 lines, 813396 characters (115 null)

Tue Jun 24 21:17:14 2003

Starting ORACLE instance (normal)

LICENSE_MAX_SESSION = 0

LICENSE_SESSIONS_WARNING = 0

SCN scheme 3

Using log_archive_dest parameter default value

LICENSE_MAX_USERS = 0

SYS auditing is disabled

Starting up ORACLE RDBMS Version: 9.2.0.3.0.

System parameters with non-default values:

processes = 400

timed_statistics = TRUE

shared_pool_size = 117440512

large_pool_size = 83886080

java_pool_size = 33554432

control_files = /export/home1/oracle/oradata/hswapdb/control01.ctl,

/export/home1/oracle/oradata/hswapdb/control02.ctl,

/export/home1/oracle/oradata/hswapdb/control03.ctl

db_block_size = 8192

db_cache_size = 352321536

compatible = 9.2.0.0.0

db_file_multiblock_read_count= 16

fast_start_mttr_target = 300

undo_management = AUTO

undo_tablespace = UNDOTBS1

undo_retention = 10800

remote_login_passwordfile= EXCLUSIVE

db_domain = eygle.com

instance_name = hswapdb

dispatchers = (PROTOCOL=TCP) (SERVICE=hswapdbXDB)

job_queue_processes = 10

hash_join_enabled = TRUE

background_dump_dest = /export/home1/oracle/admin/hswapdb/bdump

user_dump_dest = /export/home1/oracle/admin/hswapdb/udump

core_dump_dest = /export/home1/oracle/admin/hswapdb/cdump

sort_area_size = 524288

db_name = hswapdb

open_cursors = 300

star_transformation_enabled= FALSE

query_rewrite_enabled = FALSE

pga_aggregate_target = 154140672

aq_tm_processes = 1

.................

Tue Mar 23 13:40:45 2004

skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3

skgpspawn failed:category = 27142, depinfo = 11, op = fork, loc = skgpspawn5

skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3

Tue Mar 23 13:42:02 2004

skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3

Tue Mar 23 13:55:38 2004

Starting ORACLE instance (normal)

Shutting down instance: further logons disabled

Tue Mar 23 13:56:20 2004

Shutting down instance (abort)

License high water mark = 26

Instance terminated by USER, pid = 25112

Tue Mar 23 13:56:37 2004

Starting ORACLE instance (normal)

LICENSE_MAX_SESSION = 0

LICENSE_SESSIONS_WARNING = 0

SCN scheme 3

Using log_archive_dest parameter default value

LICENSE_MAX_USERS = 0

SYS auditing is disabled

Starting up ORACLE RDBMS Version: 9.2.0.3.0.

System parameters with non-default values:

processes = 400

timed_statistics = TRUE

shared_pool_size = 117440512

large_pool_size = 83886080

java_pool_size = 33554432

control_files = /export/home1/oracle/oradata/hswapdb/control01.ctl,

/export/home1/oracle/oradata/hswapdb/control02.ctl,

/export/home1/oracle/oradata/hswapdb/control03.ctl

db_block_size = 8192

db_cache_size = 352321536

compatible = 9.2.0.0.0

db_file_multiblock_read_count= 16

fast_start_mttr_target = 300

undo_management = AUTO

undo_tablespace = UNDOTBS1

undo_retention = 10800

remote_login_passwordfile= EXCLUSIVE

db_domain = eygle.com

instance_name = hswapdb

dispatchers = (PROTOCOL=TCP) (SERVICE=hswapdbXDB)

remote_dependencies_mode = SIGNATURE

job_queue_processes = 10

hash_join_enabled = TRUE

background_dump_dest = /export/home1/oracle/admin/hswapdb/bdump

user_dump_dest = /export/home1/oracle/admin/hswapdb/udump

core_dump_dest = /export/home1/oracle/admin/hswapdb/cdump

sort_area_size = 524288

db_name = hswapdb

open_cursors = 300

star_transformation_enabled= FALSE

parallel_automatic_tuning= TRUE

query_rewrite_enabled = FALSE

pga_aggregate_target = 154140672

aq_tm_processes = 1

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

CJQ0 started with pid=8

QMN0 started with pid=9

Tue Mar 23 13:56:42 2004

starting up 1 shared server(s) ...

Tue Mar 23 13:56:42 2004

starting up 1 dispatcher(s) for network address '(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))'...

Tue Mar 23 13:56:43 2004

ALTER DATABASE MOUNT

Tue Mar 23 13:56:47 2004

Successful mount of redo thread 1, with mount id 3253076635.

Tue Mar 23 13:56:47 2004

Database mounted in Exclusive Mode.

Completed: ALTER DATABASE MOUNT

Tue Mar 23 13:56:47 2004

Current log# 2 seq# 2136 mem# 0: /export/home1/oracle/oradata/hswapdb/redo02.log

Successful open of redo thread 1.

Tue Mar 23 12:24:54 2004

SMON: enabling cache recovery

Tue Mar 23 12:24:56 2004

Undo Segment 1 Onlined

Undo Segment 2 Onlined

Undo Segment 3 Onlined

Undo Segment 4 Onlined

Undo Segment 5 Onlined

Undo Segment 6 Onlined

Undo Segment 7 Onlined

Undo Segment 8 Onlined

Undo Segment 9 Onlined

Undo Segment 10 Onlined

Successfully onlined Undo Tablespace 1.

Tue Mar 23 12:24:56 2004

SMON: enabling tx recovery

Tue Mar 23 12:24:56 2004

Database Characterset is ZHS16GBK

Tue Mar 23 12:25:01 2004

SMON: Parallel transaction recovery tried

Tue Mar 23 12:25:01 2004

replication_dependency_tracking turned off (no async multimaster replication found)

Completed: ALTER DATABASE OPEN

Tue Mar 23 12:28:26 2004

/* OracleOEM */ ALTER DATABASE DATAFILE '/export/home1/oracle/oradata/hswapdb/users01.dbf' RESIZE 2501760K

Tue Mar 23 12:28:26 2004

ORA-3297 signalled during: /* OracleOEM */ ALTER DATABASE DATAFILE '/export/h...

Tue Mar 23 12:28:32 2004

/* OracleOEM */ ALTER DATABASE DATAFILE '/export/home1/oracle/oradata/hswapdb/users01.dbf' RESIZE 2501760K

ORA-3297 signalled during: /* OracleOEM */ ALTER DATABASE DATAFILE '/export/h...

Tue Mar 23 12:28:53 2004

/* OracleOEM */ ALTER DATABASE DATAFILE '/export/home1/oracle/oradata/hswapdb/users01.dbf' RESIZE 3501760K

Tue Mar 23 12:28:53 2004

ORA-3297 signalled during: /* OracleOEM */ ALTER DATABASE DATAFILE '/export/h...

Tue Mar 23 13:40:45 2004

skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3

skgpspawn failed:category = 27142, depinfo = 11, op = fork, loc = skgpspawn5

skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3

Tue Mar 23 13:42:02 2004

skgpspawn failed:category = 27142, depinfo = 12, op = fork, loc = skgpspawn3

发现数据库多次重起，并记录了部分错误信息

该提示说明数据库无法spawn a new session.

quote Yong Huang's comment:

The number in "skgpspawn failed:category = 27142" is probably ORA error:

$ oerr ora 27142

27142, 0000, "could not create new process"

// *Cause: OS system call

// *Action: check errno and if possible increase the number of processes

OSD (OS-dependent) errors are almost always shown as an skg... error (probably means "system, kernel generic").

I don't know what "depinfo = 12" means.

4.尝试连接数据库

收到错误信息，无法连接数据库

$ sqlplus "/ as sysdba"

SQL*Plus: Release 9.2.0.3.0 - Production on 星期二 3月 23 14:14:06 2004

ERROR:

ORA-12540: TNS: 超出内部限制

请输入用户名:

ERROR:

ORA-12540: TNS: 超出内部限制

请输入用户名:

ERROR:

ORA-12540: TNS: 超出内部限制

SP2-0157: 在3次尝试之后无法 CONNECT 到 ORACLE, 退出 SQL*Plus

内部限制超过，通常说明某些系统资源不足.

5.检查监听器

发现部分连接被拒绝

/export/home1/oracle>lsnrctl services

LSNRCTL for Solaris: Version 9.2.0.3.0 - Production on 23-3月 -2004 14:37:23

正在连接到 (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC)))

服务摘要..

服务 "PLSExtProc" 包含 1 个例程。

例程 "PLSExtProc", 状态 UNKNOWN, 包含此服务的 1 个处理程序...

处理程序:

"DEDICATED" 已建立:0 已被拒绝:0

LOCAL SERVER

服务 "hswapdb.eygle.com" 包含 2 个例程。

例程 "hswapdb", 状态 UNKNOWN, 包含此服务的 1 个处理程序...

处理程序:

"DEDICATED" 已建立:6 已被拒绝:0

LOCAL SERVER

例程 "hswapdb", 状态 READY, 包含此服务的 1 个处理程序...

处理程序:

"DEDICATED" 已建立:21 已拒绝:6 状态:ready

LOCAL SERVER

服务 "hswapdbXDB.eygle.com" 包含 1 个例程。

例程 "hswapdb", 状态 READY, 包含此服务的 1 个处理程序...

处理程序:

"D000" 已建立:0 已被拒绝:0 当前: 0 最大: 972 状态: ready

DISPATCHER <machine: wapplatform, pid: 25839>

(ADDRESS=(PROTOCOL=tcp)(HOST=wapplatform)(PORT=32869))

命令执行成功

在listener.log中找到了相关错误信息

23-3\324\302 -2004 12:19:40 * (CONNECT_DATA=(SID=hswapdb)(CID=(PROGRAM=C:\WINNT\Microsoft.NET\Framework\v1.1.4322\aspnet_wp.e

xe)(HOST=SWAN)(USER=SYSTEM))) * (ADDRESS=(PROTOCOL=tcp)(HOST=172.16.30.125)(PORT=1291)) * establish * hswapdb * 12500

TNS-12500: TNS\243\272\274\340\314\375\306\367\316\264\304\334\306\364\266\257\327\250\323\303\265\304\267\376\316\361\306\36

7\275\370\263\314

TNS-12540: TNS\243\272\263\254\263\366\304\332\262\277\274\253\317\336\317\336\326\306

TNS-12560: TNS: \320\255\322\351\312\312\305\344\306\367\264\355\316\363

TNS-00510: \263\254\263\366\304\332\262\277\274\253\317\336\317\336\326\306

Solaris Error: 12: Not enough space

23-3\324\302 -2004 12:19:50 * (CONNECT_DATA=(SID=hswapdb)(CID=(PROGRAM=C:\Program Files\PLSQL Developer\PLSQLDev.exe)(HOST=SW

AN)(USER=Administrator))) * (ADDRESS=(PROTOCOL=tcp)(HOST=172.16.30.125)(PORT=1292)) * establish * hswapdb * 12500

TNS-12500: TNS\243\272\274\340\314\375\306\367\316\264\304\334\306\364\266\257\327\250\323\303\265\304\267\376\316\361\306\36

7\275\370\263\314

TNS-12540: TNS\243\272\263\254\263\366\304\332\262\277\274\253\317\336\317\336\326\306

TNS-12560: TNS: \320\255\322\351\312\312\305\344\306\367\264\355\316\363

TNS-00510: \263\254\263\366\304\332\262\277\274\253\317\336\317\336\326\306

Solaris Error: 12: Not enough space

/export/home1/oracle/app/network/log>grep -w 12 /usr/include/sys/errno.h

#define ENOMEM 12 /* Not enough core

quote Yong Huang's comment:

$ grep -w 12 /usr/include/sys/errno.h

#define ENOMEM 12 /* Not enough core */

Here "core" means memory, including real RAM memory and swap space.

6.退出Oracle用户检查

检查系统日志信息，发现大量失败的su操作

有swap区不足的报告

/export/home1/oracle/admin/hswapdb/bdump>exit

wapplatform:/>dmesg

2004年03月23日星期二 14时00分32秒 CST

Mar 22 22:52:36 wapplatform elfexec: [ID 700856 kern.notice] ps: Cannot find ^?ELF^A^B^A

Mar 22 22:53:00 wapplatform ufs: [ID 845546 kern.notice] NOTICE: alloc: /export/home1: file system full

Mar 22 22:53:09 wapplatform elfexec: [ID 700856 kern.notice] w: Cannot find ^?ELF^A^B^A

Mar 22 22:53:53 wapplatform last message repeated 4 times

Mar 22 22:56:28 wapplatform elfexec: [ID 700856 kern.notice] ipnat: Cannot find ^?ELF^B^B^A

Mar 22 22:58:00 wapplatform ufs: [ID 845546 kern.notice] NOTICE: alloc: /export/home1: file system full

Mar 22 22:59:54 wapplatform elfexec: [ID 700856 kern.notice] ipnat: Cannot find ^?ELF^B^B^A

Mar 22 23:02:26 wapplatform ufs: [ID 845546 kern.notice] NOTICE: alloc: /export/home1: file system full

Mar 22 23:03:00 wapplatform last message repeated 1 time

Mar 22 23:08:00 wapplatform ufs: [ID 845546 kern.notice] NOTICE: alloc: /export/home1: file system full

Mar 22 23:08:34 wapplatform elfexec: [ID 700856 kern.notice] ipnat: Cannot find ^?ELF^B^B^A

Mar 22 23:10:27 wapplatform last message repeated 3 times

Mar 22 23:11:49 wapplatform elfexec: [ID 700856 kern.notice] ipnat: Cannot find ^?ELF^B^B^A

Mar 22 23:11:52 wapplatform last message repeated 1 time

Mar 22 23:13:01 wapplatform ufs: [ID 845546 kern.notice] NOTICE: alloc: /export/home1: file system full

Mar 22 23:18:01 wapplatform last message repeated 1 time

Mar 22 23:23:01 wapplatform ufs: [ID 845546 kern.notice] NOTICE: alloc: /export/home1: file system full

Mar 22 23:28:01 wapplatform last message repeated 1 time

Mar 22 23:33:01 wapplatform ufs: [ID 845546 kern.notice] NOTICE: alloc: /export/home1: file system full

Mar 22 23:38:01 wapplatform last message repeated 1 time

Mar 22 23:43:01 wapplatform ufs: [ID 845546 kern.notice] NOTICE: alloc: /export/home1: file system full

Mar 22 23:48:01 wapplatform last message repeated 1 time

Mar 22 23:53:01 wapplatform ufs: [ID 845546 kern.notice] NOTICE: alloc: /export/home1: file system full

Mar 22 23:58:01 wapplatform last message repeated 1 time

Mar 23 00:00:00 wapplatform ufs: [ID 213553 kern.notice] NOTICE: realloccg /export/home1: file system full

Mar 23 00:00:00 wapplatform sendmail[3075]: [ID 702911 mail.crit] My unqualified host name (wapplatform) unknown; sleeping

for retry

Mar 23 00:01:00 wapplatform sendmail[3075]: [ID 702911 mail.alert] unable to qualify my own domain name (wapplatform) --

using short name

Mar 23 00:02:36 wapplatform ufs: [ID 845546 kern.notice] NOTICE: alloc: /export/home1: file system full

Mar 23 00:03:02 wapplatform last message repeated 1 time

Mar 23 00:08:02 wapplatform ufs: [ID 845546 kern.notice] NOTICE: alloc: /export/home1: file system full

....

Mar 23 10:18:15 wapplatform ufs: [ID 845546 kern.notice] NOTICE: alloc: /export/home1: file system full

Mar 23 10:20:41 wapplatform ufs: [ID 213553 kern.notice] NOTICE: realloccg /export/home1: file system full

Mar 23 10:20:47 wapplatform last message repeated 1 time

Mar 23 10:23:15 wapplatform ufs: [ID 845546 kern.notice] NOTICE: alloc: /export/home1: file system full

Mar 23 10:24:38 wapplatform ufs: [ID 213553 kern.notice] NOTICE: realloccg /export/home1: file system full

Mar 23 10:24:43 wapplatform last message repeated 1 time

Mar 23 10:24:55 wapplatform ufs: [ID 213553 kern.notice] NOTICE: realloccg /export/home1: file system full

Mar 23 10:25:06 wapplatform last message repeated 2 times

Mar 23 11:09:31 wapplatform genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 3118 (su)

Mar 23 11:09:39 wapplatform genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 3121 (su)

Mar 23 11:10:48 wapplatform genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 3137 (su)

Mar 23 11:18:02 wapplatform sshd[3620]: [ID 800047 auth.error] error: grantpt: Not enough space

Mar 23 11:18:02 wapplatform sshd[3620]: [ID 800047 auth.error] error: session_pty_req: session 0 alloc failed

Mar 23 11:18:43 wapplatform genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 3636 (su)

Mar 23 11:19:47 wapplatform genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 3672 (su)

Mar 23 11:20:20 wapplatform genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 3694 (su)

Mar 23 11:22:23 wapplatform genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 3736 (sshd)

Mar 23 11:23:17 wapplatform tmpfs: [ID 518458 kern.warning] WARNING: /tmp: File system full, swap space limit exceeded

Mar 23 11:23:40 wapplatform genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 3804 (su)

Mar 23 11:23:40 wapplatform last message repeated 8 times

Mar 23 11:23:56 wapplatform genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 3806 (ps)

Mar 23 11:23:56 wapplatform last message repeated 12 times

Mar 23 11:24:01 wapplatform genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 3808 (w)

Mar 23 11:24:01 wapplatform last message repeated 8 times

Mar 23 13:40:56 wapplatform su: [ID 810491 auth.crit] 'su root' failed for root on /dev/pts/2

Mar 23 13:46:26 wapplatform genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 24888

(sqlplus)

Mar 23 13:49:18 wapplatform su: [ID 810491 auth.crit] 'su oracle' failed for root on /dev/pts/6

Mar 23 13:54:03 wapplatform genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 25035 (su)

Mar 23 13:54:08 wapplatform genunix: [ID 470503 kern.warning] WARNING: Sorry, no swap space to grow stack for pid 25036 (su)

现在基本可以判断是交换区的问题，当然和Oracle SGA设置有关.

7.检查系统内存及交换区使用