Red Hat DIRECTORY SERVER 7.1 SP7 - S Guía para resolver problemas Pagina 114
- Pagina / 120
- Tabla de contenidos
- SOLUCIÓN DE PROBLEMAS
- MARCADORES
Valorado. / 5. Basado en revisión del cliente
114 Novell eDirectory 8.8 SP7 Troubleshooting Guide
23.2 Repeated eDirectory Logins
Repeated eDirectory logins can use up the available memory. Disable the Login Update attribute
using iMonitor to overcome this problem.
23.3 Enabling Event System Statistics
Time related statistics are maintained for every event thrown and consumed in eDirectory. This
information is useful for troubleshooting event consumer issues. These statistics are not required for
normal functioning of directory; therefore, they are disabled for performance reasons. Event statistics
can be enabled at runtime by using iMonitor advanced configuration parameters.
To view the event statistics, set the
ENABLE_EVENT_STATISTICS
parameter and restart the server. It is
a permanent configuration parameter.
23.4 Tracking Memory Corruption Issues on Linux
On Linux platforms, eDirectory uses Google malloc (
libtcmalloc
) as the default memory allocator.
To track memory corruption issues, set the
MALLOC_CHECK_ environment variable
in the ndsd
startup script. The startup script checks for this variable. If set, the default system malloc is used, else
libtcmalloc
is loaded.
MALLOC_CHECK Settings in ndsd
When
MALLOC_CHECK_
is set to 0, any detected heap corruption is silently ignored.
When
MALLOC_CHECK_
is set to 2, abort is called immediately.
This helps to identify the real cause of the memory corruption at early stages, which might be
difficult to track later.
23.5 TCP Connection not Terminating after Abnormal Logout
Sometimes the OES Linux server fails to detect a client host that has gone down abruptly due to a
workstation crashing or a power outage. However, the connection is active for the default timeout
(about 12 to 15 minutes) before the connection is cleared. If you have set the concurrent connections
to 1, it is recommended that you either terminate the connection manually, or wait for the estimated
timeout before logging in again. This situation occurs when the watchdog process fails to close the
connection cleanly. So, if the concurrent connections are set to 1 and the connection is not cleared by
the watchdog, users cannot log in. Linux kernel provides three parameters to change the way
keepalive
probes work from the server side. Use these parameters to implement a workaround at
the TCP level.
These parameters are available in
/proc/sys/net/ipv4/
directory.
tcp_keepalive_time
: Determines the frequency of sending the TCP
keepalive
packets to keep
a connection alive if it is currently unused. This value is used only when
keepalive
is enabled.
The
tcp_keepalive_time
takes an integer value in seconds. The default value is 7200 seconds
or 2 hours. This holds good for most of the hosts and does not require many network resources.
If you set this value to low, it engages your network resources with unnecessary traffic.
- Troubleshooting Guide 1
- Legal Notices 2
- Novell Trademarks 2
- Third-Party Materials 2
- Contents 3
- 6 Troubleshooting SNMP 45 4
- 7 iMonitor 49 4
- 8 iManager 51 4
- 9Obituaries 53 4
- Contents 5 5
- Contents 7 7
- About This Book 9
- Documentation Updates 10
- Additional Documentation 10
- Resolving Error Codes 11
- 2.1 Installation 13
- 2.1.6 Naming Objects 14
- 2.2 Configuration 15
- 2.2.3 Adding New Servers 16
- 2.3 Upgrade 17
- 2.4 Multiple Instances 19
- 3.1 Windows 21
- 3.2 Linux 21
- 3.3 Solaris 22
- Log Files 25
- Troubleshooting LDIF Files 27
- 5.1.2 LDIF Content Records 28
- 5.1.3 LDIF Change Records 29
- The Delete Change Type 30
- The Modify Change Type 30
- The Modify DN Change Type 32
- 5.2 Debugging LDIF Files 34
- The default is 37
- Option Description 37
- 5.3.2 Adding a New Attribute 40
- Troubleshooting SNMP 45
- 6.2 SNMP Group Object 46
- 6.3 SNMP Initializing Errors 46
- 6.6 SNMP Issues 46
- 6.6.3 Restarting ndssnmpsa 47
- On Windows 50
- Using Quick Create 51
- Obituaries 53
- 9.1 Examples 54
- 9.3 Prevention 55
- 9.4 Troubleshooting Tips 56
- 9.4.1 Solutions 57
- 9.4.2 Previous Practices 58
- Using ICE 62
- 10.3.1 Prerequisites 63
- Troubleshooting Schema 67
- DSRepair 69
- Replication 71
- Clone DIB Issues 73
- Services 75
- 6 Click Apply, then click OK 76
- 16.2 ndsconfig Utility 77
- 16.3 ndsmerge Utility 78
- 16.4 DSTrace Utility 78
- 16.5 ndsbackup Utility 78
- 16.6 Using DSRepair 79
- Global Schema Operations 81
- 16.7 Using DSTrace 85
- 16.7.1 Basic Functions 86
- 16.7.2 Debugging Messages 86
- 16.7.3 Background Processes 89
- NMAS on Linux and UNIX 95
- Troubleshooting on Windows 97
- Troubleshooting on Windows 99 99
- DHost remote management page 102
- Encrypting Data in eDirectory 103
- Possible Cause 105
- SASL-GSSAPI 109
- 4 Perform the LDAP 111
- Miscellaneous 113
- MALLOC_CHECK Settings in ndsd 114
- 23.7 Disabling SecretStore 116
- 23.8 Viewing SLP Man Pages 116
- 2.16.840.1.113719.1.27.103.7 118
Relacionado con productos y manuales para Teléfonos Red Hat DIRECTORY SERVER 7.1 SP7 - S
(19 paginas)
(28 paginas)
© 2020, manymanuals.es. Todos los derechos reservados | 0.166 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comentarios a estos manuales