Io Error: Got minus one from a read call

When trying to connect using oracle sqldeveloper this error messages is thrown. I came across this error two times, on each occasion different cause.

1)  Make sure you are connecting to the correct port, wrong port also gives the error above.


2) This is happening becuase oracle is using ACL (access control list) where only authorised clients are given access.

check sqlnet.ora file ($ORACLE_HOME/network/admin)

tcp.validnode_checking = yes
tcp.invited_nodes=(ORACLE11I.mylearn.com)


we can either disable this checking

tcp.validnode_checking = no

or add the node in the acl.

tcp.invited_nodes=(ORACLE11I.mylearn.com,192.168.1.14)


bounce the listener and try connecting again

if oracle apps is using use addlnctl script to bounce it.






Comments

  1. EgitaS11 April 2012 at 01:34

    This comment has been removed by the author.

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  2. EgitaS11 April 2012 at 01:38

    good advice
    although, in my case i just simply didnt connect to correct port
    by some reason used the 8080 port not 1521, because when opening the database app, it tried to open http://127.0.0.1:8080 addess.

    good luck and thanks!

    ReplyDelete
    Replies
    1. Yoonas15 April 2012 at 07:45

      I came across the one you mentioned also today. Thank you very much.

      Keep sharing :)

      Delete
  3. vipin kumar6 June 2013 at 06:09

    Its Helped me as well...thanks very much

    ReplyDelete
  4. Ginni19 December 2013 at 16:41

    Thank you so much.

    ReplyDelete

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