Slapd_poll () timed out
Hello there,
I see the below errors in ODSEE11gR1 version on Linux server, can some one tell me what is the reason for this error?
error log:
[18/Jul/2011:11:54:22 -0400] - DEBUG - conn=-1 op=-1 msgId=-1 - slapd_poll(18) timed out
[18/Jul/2011:11:54:27 -0400] - DEBUG - conn=-1 op=-1 msgId=-1 - slapd_poll(24) timed out
[18/Jul/2011:11:54:32 -0400] - DEBUG - conn=-1 op=-1 msgId=-1 - slapd_poll(22) timed out
[18/Jul/2011:11:54:37 -0400] - DEBUG - conn=-1 op=-1 msgId=-1 - slapd_poll(23) timed out
access log:
[18/Jul/2011:11:52:30 -0400] conn=14 op=-1 msgId=-1 - fd=18 slot=18 LDAP connection from 10.5.59.5:58730 to 10.22.33.65
[18/Jul/2011:11:52:30 -0400] conn=14 op=0 msgId=1 - EXT oid="1.3.6.1.4.1.1466.20037"
[18/Jul/2011:11:52:30 -0400] conn=14 op=0 msgId=1 - RESULT err=0 tag=120 nentries=0 etime=0.001000, Start TLS request accepted.Server willing to negotiate SSL.
[18/Jul/2011:11:52:30 -0400] conn=14 op=-1 msgId=-1 - SSL 256-bit AES-256
[18/Jul/2011:11:52:30 -0400] conn=14 op=1 msgId=2 - BIND dn="cn=proxy,dc=domain,dc=com" method=128 version=3
[18/Jul/2011:11:52:30 -0400] conn=14 op=1 msgId=2 - RESULT err=0 tag=97 nentries=0 etime=0.018000 dn="cn=proxy,dc=domain,dc=com"
[18/Jul/2011:11:52:30 -0400] conn=14 op=2 msgId=3 - SRCH base="ou=people,ou=linux,dc=domain,dc=com" scope=2 filter="(&(objectClass=posixAccount)(uid=testunix))" attrs=ALL
[18/Jul/2011:11:52:30 -0400] conn=14 op=2 msgId=3 - RESULT err=0 tag=101 nentries=1 etime=0.023000
[18/Jul/2011:11:52:30 -0400] conn=14 op=3 msgId=4 - BIND dn="uid=testunix,ou=people,ou=linux,dc=domain,dc=com" method=128 version=3
[18/Jul/2011:11:52:30 -0400] conn=14 op=3 msgId=4 - RESULT err=0 tag=97 nentries=0 etime=0.000000 dn="uid=testunix,ou=people,ou=linux,dc=domain,dc=com"
[18/Jul/2011:11:52:30 -0400] conn=14 op=4 msgId=5 - BIND dn="cn=proxy,dc=domain,dc=com" method=128 version=3
[18/Jul/2011:11:52:30 -0400] conn=14 op=4 msgId=5 - RESULT err=0 tag=97 nentries=0 etime=0.001000 dn="cn=proxy,dc=domain,dc=com"
[18/Jul/2011:11:54:22 -0400] conn=14 op=5 msgId=0 - RESULT err=80 tag=120 nentries=0 etime=104.568000
[18/Jul/2011:11:54:22 -0400] conn=14 op=-1 msgId=-1 - closing from 10.5.59.5:58730 - B1 - Client request contains an ASN.1 BER tag that is corrupt or connection aborted -
[18/Jul/2011:11:54:22 -0400] conn=14 op=-1 msgId=-1 - closed.
Any idea why i see 'ASN.1' BER tag error in the access log, when i see this error in the access log i also see slapd_poll () timed out error in the error log? Please let me know .
Thanks
Stan
I use Oracle (Sun) Directory 11gR1+Ps1 version on SLES 11 ass the backend LDAP for all Unix client server authentication against it. When i issue a 'passwd' command i get these error messages in the access/errors logs and passwd command hangs. When i checked the client server logs, i see the below messages..
Jul 19 12:04:10 labldaptest1 passwd[17524]: nss_ldap: ldap_start_tls failed: Timed out
Jul 19 12:04:15 labldaptest1 passwd[17524]: nss_ldap: ldap_start_tls failed: Timed out
Jul 19 12:04:15 labldaptest1 passwd[17524]: nss_ldap: could not search LDAP server - Server is unavailable
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Slapd_poll(*) timed out and ASN.1 BER error messages
We have recently started to receive a large number of slapd_poll and ASN.1 BER error messages in our DSEE 11.1.1.7.0 errors and access logs.
The following messages appear in the access logs:
B1 - Client request contains an ASN.1 BER tag that is corrupt or connection aborted
At the same time the following slapd_poll error appears in the errors log:
DEBUG - conn=-1 op=-1 msgId=-1 - slapd_poll(169) timed out
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Usual cause is a LDAP client that is disconnecting without UNBINDing.
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I'm getting the following error randomly in my error logs:
- DEBUG - conn=-1 op=-1 msgId=-1 - slapd_poll(188) timed out
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Edited by: DJ on Sep 12, 2012 1:11 AMHello,
You can get the slapd poll message when:
1) The LDAP server tries to send data back to the client and block for more than the ioblocktimeout
2) The LDAP server tries to read a PDU from the client and block for more than the ioblocktimeout
either because:
2a) it receives the first byte of the PDU and wait for the end of it
2b) You got SSL handcheck and wait for the first byte of the user PDU
You typically fall into #1 by doing an ldapsearch ... (objectclass=*) | more and wait enough time ...
2a) occurs if there is problem with the application or the network
2b) occurs with some ldap applications ( usually java written because the LDAP C SDK does not exhibut the pb) that open ssl connection then wait before sending first ldap operation ...
a work-around is to have the application send a dummy operation when opening the connection ...
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