红帽全球峰会7.11. Adjusting the input/output block timeout in the IdM Directory Server
The nsslapd-ioblocktimeout attribute sets the amount of time in milliseconds after which the connection to a stalled LDAP client is closed. An LDAP client is considered to be stalled when it has not made any I/O progress for read or write operations.
Lower the value of the nsslapd-ioblocktimeout attribute to free up connections sooner.
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Prerequisites
- The LDAP Directory Manager password
Procedure
Retrieve the current value of the
nsslapd-ioblocktimeoutparameter and make a note of it before making any adjustments, in case it needs to be restored. Enter the Directory Manager password when prompted.[root@server ~]# dsconf -D "cn=Directory Manager" ldap://<server_fqdn> config get nsslapd-ioblocktimeout Enter password for cn=Directory Manager on ldap://server.example.com: nsslapd-ioblocktimeout: 10000Modify the value of the
nsslapd-ioblocktimeoutattribute. This example lowers the value to8000.[root@server ~]# dsconf -D "cn=Directory Manager" ldap://<server_fqdn> config replace nsslapd-ioblocktimeout=8000Authenticate as the Directory Manager to make the configuration change.
Enter password for cn=Directory Manager on _ldap://server.example.com_: Successfully replaced "nsslapd-ioblocktimeout"-
Monitor the IdM directory server’s performance. If it does not improve, repeat this procedure and adjust
nsslapd-ioblocktimeoutto a different value, or back to the default of10000.
Verification
Display the value of the
nsslapd-ioblocktimeoutattribute and verify it has been set to your desired value.[root@server ~]# dsconf -D "cn=Directory Manager" ldap://<server_fqdn> config get nsslapd-ioblocktimeout Enter password for cn=Directory Manager on ldap://server.example.com: nsslapd-idletimeout: 8000
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