Database is suspended three times with the exact error

I join alert log and we have open ticket with oracle. We have 6 Group of redo with 2members (500 mb)

Thread 1 cannot allot of new newspapers, sequence 12457
Private stream flush is not complete
Currently Journal # 3 seq # 12456 mem # 0: + REDOA/test/redoa_test_3
Currently Journal # 3 seq # 12456 mem # 1: + REDOB/test/redob_test_3
Thread 1 Advanced to record the sequence 12457 (switch LGWR)
Currently journal # 5 seq # 12457 mem # 0: + REDOA/test/redoa_test_5
Currently journal # 5 seq # 12457 mem # 1: + REDOB/test/redob_test_5
Wed Mar 06 22:34:17 2013
Archived journal 26537 extra for each sequence 1 12456 0x35b60d17 dest ID thread entry 1:
Wed Mar 06 22:43:29 2013
minact-SNA: useg scan slip on with error e:12751
Wed Mar 06 22:48:38 2013
minact-SNA: useg scan slip on with error e:12751
Wed Mar 06 22:53:19 2013
ERROR: Impossible to standardize the name of the symbol for the short stack (at offset
(139):
dbgexProcessError () + 176 <-dbgePostErrorKGE (+ 1348) <-() + 48 dbkePostKGE_kgsf <-kgeade)
) 640 <-kgerelv () + 240 <-() + 80 kgerec4 <-kjdgpstackdmp () + 892 <-_ $c1A.kjdglblkrdmpint)
+ 216 <-ksikblkrdmpi () + 240 <-ksqgtlctx (+ 9760) <-() + 800 ksqgelctx <-kcc_get_enqueue () + 5
44 <-kccocx () + 716 <-kcc_begin_txn_internal () + 76 <-krsa_cftxn_begin (+ 2752) <-krsj_cle
ar_gap () + 760 <-krsg_clear_gap () + 348 <-krsg_gap_ping (+ 21576) <-krsg_ping (+ 1892) <-kcr
rwkx () + 6048 <-kcrrwk () + 1560 <-ksbcti (+ 1368) <-ksbabs (+ 1556) <-ksbrdp (+ 1616) <-opirip)
) + 1680 <-opidrv () + 748 <-sou2o () + 88 <-opimai_real () + 276 <-ssthrdmain () + 316 <-hand () + 31
6 <-_start () + 380
Errors in the file /ora/ADMIN/test/diag/rdbms/test/test/trace/test_arc2_4628.trc (i
preloaded = 188103):
ORA-00494: [CF] enqueue for too long (more than 900 seconds) by ' inst 1, os
ID 3922'

ORA-00494: [CF] enqueue for too long (more than 900 seconds) by ' inst 1, os
ID 3922'
Incident details in: / ora/ADMIN/test/diag/rdbms/test/test/incident/incdir_188103
test_arc2_4628_i188103.TRC
Wed Mar 06 22:53:48 2013
minact-SNA: useg scan slip on with error e:12751
Suspension of action 'Block Cleanout Optim, Undo Segment Scan' MMON for secon 82800
DS
Wed Mar 06 22:53:50 2013
Killing blocker enqueue (pid = 3922) on resources (pid = 4628 CF-00000000-00000000
)
by killing session 781,1
Killing blocker enqueue (pid = 3922) on resources (pid = 4628 CF-00000000-00000000
)
by ending processes
ARC2 (ospid: 4628): put an end to litigation because of the error 2103
Wed Mar 06 22:53:50 2013
System dump State requested by (instance = 1, DiSo = 4628 (ARC2)), summary = [abnormal
termination of proceedings].
State of the system dumped to trace file /ora/ADMIN/test/diag/rdbms/test/test/trace/TEST_diag_3797.trc
Instance terminated by ARC2, pid = 4628

Check
Grave database fails with ORA-00494 [ID 753290.1]
ORA-00494: [Cf] Enqueue held for database too long causing the crash [ID 1101862.1]

Tags: Database

Similar Questions

  • I installed KB263380 KB2572073 and KB2518864 three times with success; However, I get the yellow shield saying that I need to update to Windows XP

    I installed KB263380 KB2572073 and KB2518864 three times with success; However, I get the yellow shield saying that I need to update to Windows XP

    I ran the Mr Fixit for this problem, and briefly, the yellow shield disappeared, I thought that it worked.  But as soon as I clicked the solution worked and Mr. Fixit was gone, the yellow shield came back and said that I have to update these once again.

    Thanks for the article.  The icon stopped appearing after the third time I've updated from Windows.  Someone must have solved the problem to Microsoft.  I did nothing except reboot several times.  Finally, the Update icon went in itself.

  • How to read 4 similar channels at the same time with the MCC

    Hello

    with the mcc libraries and a card PCi-6034 classic (by calculation of the measure), I want to read 4 analog channels at the same time. I have a "scope" with 4 channels.  How to read 4 channels at the same time with the mcc?

    MF

    Hello MF.

    Thank you for using OR support.  I guess you try to program in LabVIEW.  Where exactly did you get the MCC library of?

  • See the time with the date in the cell?

    How do you not see time with the date in a cell? I tried all the settings I can find but without success.

    Using the numbers from version 3.6.2 (2577) - OS: El Cap 10.11.6

    I don't want to see that 12:00:00 AM

    Hi Russ,

    Inspector to format > cell, the parameters as shown below:

    Kind regards

    Barry

  • When you install an automatic update. I received the error code 652. try three times. Always code error 652. She strives to update of Miscrosoft Silverlight (KB2164913) need help.

    When you install an automatic update. I received the error code 652. Have tried three times, always the error code 652. She tries to Miscrosoft Silverlight Update. need help

    Hello

    ·        Remember to make changes to the system?

    Follow the steps mentioned below.

    Step 1:

    There may be some third-party software that runs in the background, I suggest you do a clean boot and check. To perform a clean boot follow the steps mentioned in the link given below.

    How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7

    http://support.Microsoft.com/kb/929135

    Note: Once you have finished installing, follow step 7 to start the computer in normal startup.

    Step 2:

    Reset windows update components and check. Follow the steps mentioned in the article below.

    How to reset the Windows Update components?

    http://support.Microsoft.com/kb/971058/en-us

    Step 3:

    See the article mentioned below.

    Description of the update for Silverlight: September 1, 2010

    http://support.Microsoft.com/kb/2164913

    To get help after your query in the Microsoft Silverlight Forums. Click on the link below.

    http://forums.Silverlight.NET/forums/

    Thanks and regards.

    Thahaseena M
    Microsoft Answers Support Engineer.
    Visit our Microsoft answers feedback Forum and let us know what you think.

  • I get a message says "the site is unavailable at this time" with the error code [0 x 80070424].

    Original title: error code [0 x 80070424]

    My security alerts continues to tell me that the automatic updates are disabled. I check in the Security Center, and they are in position "on", but it won't download updates. When I go to the Microsoft website to update directly, I get a message says "the site is unavailable at this time" with the error code [0 x 80070424]. Microsoft doesn't even have it classified as a potential error code. I checked the status of the Fund Manager and it is set to "Auto" and it is started, but does not resolve the issue.

    Hello

    You did changes to the computer before this problem?

    Try the troubleshooting provided in the article below steps and check if it helps.

    Error message when you use Microsoft Update or Windows Update Web sites to install updates: 0 x 80070424
    http://support.Microsoft.com/kb/968002

  • I made a new music video for a song, and the music is not in time with the film, how I put in time?

    I made a new music video for a song, and the music is not in time with the film, how I put in time?
    Oh and I'm using WIndows Movie Maker. One.

    Please repost in Windows Live Solution Center.
    Forum on Windows Live Movie maker:
    http://windowslivehelp.com/forums.aspx?ProductID=5

  • I currently have Adobe Acrobat Pro XI free trial. I am told that I can buy Adobe pro to version 11.0 (XI) British Colombia, our database software is not compatible with the version 15.0 (DC). All projects/products seem to say DC Adobe. Where can I find th

    I currently have Adobe Acrobat Pro XI free trial. He tells me that we can buy Adobe pro to version 11.0 (XI) British Colombia, our database software is not compatible with the version 15.0 (DC). All projects/products seem to say DC Adobe. Where can I find or how to buy just the Pro?

    Hi lplaw1234,

    Acrobat XI can only be used as a trial for a month.

    Adobe now offers only Acrobat DC Plans and price | Adobe Acrobat DC.

    Kind regards

    Nicos

  • I've uninstalled and reinstalled the drive several times with the same result, my problem is when I download the drive icons for my browsers and above all my desktop icons change adobe logo, so when I click on them Adobe tries to open them.

    I've uninstalled and reinstalled the drive several times with the same result, my problem is when I download the drive icons for my browsers and changing most of my the desktop icons for the adobe logo, so when I click on them Adobe tries to open them, of course, he does not format because it's not an adobe application , so I tried to restore the computer to an earlier date and it wont let me as long as Adobe reader is installed, so I need to uninstall and now I have nothing to open files and downloads of Adobe, someone had this problem and if so, did you get it resolved? Thank you Tommy...

    This may help: Application, file icons change in Acrobat/Reader icon

  • I have a request for a phone number in my HTML code in my database which is automatically filled with the correct sales phone number when sending emails. I create HTML code in dreamweaver and then put the code in my e-mail program. I need to do the ph

    I have a request for a phone number in my HTML code in my database which is automatically filled with the correct sales phone number when sending emails. I create HTML code in dreamweaver and then put the code in my e-mail program. I need to make the phone number in the clickable query. I know the code to do it well not in a query. What is the code?

    As far as I saw, most of the smartphones will automatically recognize it these days, as long as the number is written in a format of regular phone number. This format also allows to make images or text other than a telephone number in a tap to call the link.

    Looking at what you have presented I guess it would be something along the lines of...

    urmcell>>">urmcell >

    When the location of the link and the link text would be the same variable.

    I've never worked with Intelliclick so above is a wild guess. They would be those who need to ask themselves if there is a way to fill in the address of a link like that.

  • dml execution 2 statements at a time with the help of execute immediate

    I would like to run 2 DML statements at a time with the help of execute immediate usefulness,.

    ex:

    update employee set ename = 'Chantal' where eno = 123;
    Update dept set dname = 'IT' where dno = 345;

    I want the two statement to execute at a time, but I don't want to use any loop as well.

    Thanks in advance

    You can use:

    execute immediate 'begin update employee set ename='jagadeesh' where eno=123; update dept set dname='IT' where dno=345; end;';
    

    Although updates will always run one after the other.

    If you want the simultaneous treatment, then you need to use DBMS_JOB and DBMS_SCHEDULER to plan both work to run to run each of the statements independently.

  • Listener to refuse the connection with the following error ORA-12505

    Hi everyone, Am really new to the oracle database, I work on my school project work and am stuck in the middle of this error (listener refused the connection with the following error ORA-12505).

    I started the time serveral listener and it is said that 'no service supported by the LISTENER', I can't access the database via sqldeveloper including trows on the same error (listener refused the connection with the following error ORA-12505, TNS:Listener currently know of SID given in connect descriptor.) In addition, my em show red arrow down to the listener. Here are my coordinates hard & software.


    Oracle 11.1.0
    OS: Red Hat Enterprise Linux 4 (running the operating system through Vmware workstation)
    TNSNAME. ORA

    LISTENER2 =
    (DESCRIPTION_LIST =
    (DESCRIPTION =
    ((ADDRESS = (PROTOCOL = TCP (PORT = 1522))(HOST=localhost.localdomain))
    )
    )

    AUDITEUR1 =
    (DESCRIPTION_LIST =
    (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1523))
    )
    )

    LISTENER =
    (DESCRIPTION_LIST =
    (DESCRIPTION =
    (ADDRESS = (PROTOCOL = IPC) (KEY = EXTPROC1521))
    (ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1521))




    Listner, ora




    LISTNER_ORCL
    (ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1523))
    (ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1521))
    )

    IMT_ADMI =
    (= DESRIPTION
    (PORT = 1522))
    (ADDRESS = (PROTOCOL = TCP (PORT = 1522))(HOST=localhost.localdomain))
    (ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1523))
    (ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1521))

    (CONNECT_DATA =
    (SERVER = DEDICATED)
    (SERVICE_NAME = imt_admin
    )
    )

    LISTENER_IMTADMIN =
    (ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = TCP (PORT = 1522))(HOST=localhost.localdomain))
    (ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1523))
    (ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1521))

    )

    ORCL =
    (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1523))
    (ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1521))

    (CONNECT_DATA =
    (SERVER = DEDICATED)
    (SERVICE_NAME = orcl)

    I read on some forums that I need to edit somethings that am not sure cos I don't want to mess with the database, I need help on what to.
    Thanks for the help in advance.

    (ADDRESS = (PROTOCOL = TCP)(HOST=localhost.localdomain) (PORT = 1521))

    Try to edit listener.ora by:
    (ADDRESS = (PROTOCOL = TCP) (HOST = HOST_NAME_OF_YOUR_DATABASE_MACHINE/OR TRY USING THE IP ADDRESS OF THE DATABASE SERVER MACHINE)(PORT=1521))
    Just try to edit HOST = value line above. You must use HOST_NAME_OF_YOUR_DATABASE_MACHINE or IP OF the DATABASE SERVER MACHINE.

    Host name can be obtained by the hostname command on the database server.

    With localhost, no one can connect to the database remotely.

    Concerning
    Girish Sharma

    Published by: Girish Sharma January 11, 2013 18:26

    then after the output of commands below:
    lsnrctl stop
    lsnrctl start
    Wait 60 seconds...
    ORACLE_SID =
    sqlplus scott/tiger@tnsname

    Show us what is happening now.

  • Listener refused the connection with the following error: 12505

    Hello experts,

    I am facing the problem for the last two days, when I'm trying to connect to the oracle with sql developer and Jdeveloper database. Previously, it was running fing.

    The description of the detal problem is

    To perform the requested operation, an error has occurred:

    Listener refused the connection with the following error:
    ORA-12505, TNS:listener is not currently of SID given in connect descriptor


    Code provider 12505

    I tested the following text, and every thing seems fine
    ==============================================================

    E:\Users\Anutosh > lsnrctl services

    LSNRCTL for 32-bit Windows: Version 11.2.0.1.0 - Production on August 25, 2012 20:25:34

    Copyright (c) 1991, 2010, Oracle. All rights reserved.

    Connection to (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC) (KEY = EXTPROC1521)))
    Summary of services...
    Service 'CLRExtProc' has 1 instance (s).
    Instance of 'CLRExtProc', status UNKNOWN, has 1 operation for this service...
    Managers:
    "DEDICATED" set up: 0 denied: 0
    LOCAL SERVER
    The command completed successfully

    E:\Users\Anutosh > lsnrctl status

    LSNRCTL for 32-bit Windows: Version 11.2.0.1.0 - Production on August 25, 2012 20:26:13

    Copyright (c) 1991, 2010, Oracle. All rights reserved.

    Connection to (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC) (KEY = EXTPROC1521)))
    STATUS of the LISTENER
    ------------------------
    Alias LISTENER
    Version TNSLSNR for 32-bit Windows: Version 11.2.0.1.0 - Production
    Start date August 25, 2012 19:04:12
    Uptime 0 days 1 hour 22 min 1 s
    Draw level off
    Security ON: OS Local Authentication
    SNMP OFF
    D:\app\Anutosh\product\11.2.0\dbhome_1\network\admin\listener.ora Listener parameter file
    D:\app\anutosh\diag\tnslsnr\MTECH\listener\alert\log.XML log listener
    Summary of endpoints listening...
    (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1521ipc)))
    (DESCRIPTION = (ADDRESS = (PROTOCOL = tcp)(HOST=127.0.0.1) (PORT = 1521)))
    Summary of services...
    Service 'CLRExtProc' has 1 instance (s).
    Instance of 'CLRExtProc', status UNKNOWN, has 1 operation for this service...
    The command completed successfully

    E:\Users\Anutosh > tnsping orcl

    AMT Ping Utility for 32-bit Windows: Version 11.2.0.1.0 - Production on August 25, 2012 21:35:44

    Copyright (c) 1997, 2010, Oracle. All rights reserved.

    Use settings files:
    d:\app\Anutosh\product\11.2.0\dbhome_1\network\admin\sqlnet.ora


    TNSNAMES adapter used to resolve the alias
    Try to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = localhost) (PORT = 1521)) (CONNECT_DATA = (SERVER =

    DED
    (ED) (SERVICE_NAME = orcl)))
    OK (20 ms)

    Content of tnsnames.ora
    ---------------------------------------

    tnsnames.ora # Network Configuration file: d:\app\Anutosh\product\11.2.0\dbhome_1\network\admin\tnsnames.ora
    # Generated by Oracle configuration tools.

    ORACLR_CONNECTION_DATA =
    (DESCRIPTION =
    (ADDRESS_LIST =
    (ADDRESS = (PROTOCOL = CIP)(KEY = EXTPROC1521))
    )
    (CONNECT_DATA =
    (SID = CLRExtProc)
    (PRESENTATION = RO)
    )
    )

    ORCL =
    (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost) (PORT = 1521))
    (CONNECT_DATA =
    (SERVER = DEDICATED)
    (SERVICE_NAME = orcl)
    )
    )

    Listener.ora
    -------------------

    listener.ora # Network Configuration file: d:\app\Anutosh\product\11.2.0\dbhome_1\network\admin\listener.ora
    # Generated by Oracle configuration tools.

    SID_LIST_LISTENER =
    (SID_LIST =
    (SID_DESC =
    (SID_NAME = CLRExtProc)
    (ORACLE_HOME = d:\app\Anutosh\product\11.2.0\dbhome_1)
    (= Extproc PROGRAM)
    (ENVS = "EXTPROC_DLLS=ONLY:d:\app\Anutosh\product\11.2.0\dbhome_1\bin\oraclr11.dll")
    )
    )

    LISTENER =
    (DESCRIPTION_LIST =
    (DESCRIPTION =
    (ADDRESS = (PROTOCOL = CIP)(KEY = EXTPROC1521))
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost) (PORT = 1521))
    )
    )

    ADR_BASE_LISTENER = d:\app\Anutosh

    Init.ora
    ------------

    # Change '< ORACLE_BASE >' to point to the oracle base (that you specify to)
    (# install times)

    db_name = "ORCL".
    memory_target = 1 G
    process = 150
    audit_file_dest =' < ORACLE_BASE > / admin/orcl/adump '
    AUDIT_TRAIL = 'db '.
    DB_BLOCK_SIZE = 8192
    db_domain = "
    db_recovery_file_dest =' < ORACLE_BASE > / flash_recovery_area'
    db_recovery_file_dest_size = 2G
    diagnostic_dest = "< ORACLE_BASE >.
    Dispatchers ='(Protocol=TCP) (SERVICE = ORCLXDB)"
    open_cursors = 300
    Remote_login_passwordfile = 'EXCLUSIVE '.
    undo_tablespace = 'UNDOTBS1.
    # You can ensure that the control files are created on the separate physical
    features of #.
    control_files = (ora_control1, ora_control2)
    ' compatible ' 11.2.0 = ".

    Rajat says:
    How can I fix the ITI.
    Could you please suggest anything.

    no listener.ora file is necessary for the LISTENER to operate.
    move, rename, delete, or remove the listener.ora file & then reboot the system.

    each Oracle DB tries once every 60 seconds to register with EARPHONE as shown below

    tail -10 /u01/app/oracle/product/11.2.0/dbhome_1/log/diag/tnslsnr/bcm-laptop/listener/alert/log.xml
     host_addr='127.0.0.1'>
     25-AUG-2012 12:58:48 * service_update * v112 * 0
     
    
    
     25-AUG-2012 12:59:18 * service_update * v112 * 0
     
    
    
  • Informatica workflow fails with the CWB0111 error

    My environment: Informatica 9.0.1, CAD build a 10.1.3.4.1. patch.20110427.0538 Build date: April 27, 2011 on Windows server, databases - iSeries V6R1. Informatica connects to the As / 400 using an ODBC DSN name.

    When executing multiple maps don't fail with the following error code
    Severity: ERROR
    Timestamp: 2011-08-15 18:39:44
    Node: node01_HSCUSCHLWS00112
    Thread: READER_1_1_1
    Process ID: 113076
    A message Code: RR_4035
    Message: SQL Error]
    FnName: Pick-[IBM] [I pilot Access ODBC System] column 16: CWB0111 - a buffer passed to a system call is too small to contain the data back
    FnName: Pick-[IBM] [I pilot Access ODBC System] data type string truncation on the right.
    FnName: Pick-[IBM] [I pilot Access ODBC System] column 16: CWB0111 - a buffer passed to a system call is too small to contain the data back
    FnName: Pick-[IBM] [I pilot Access ODBC System] data type string truncation on the right.
    FnName: Pick-[IBM] [I pilot Access ODBC System] column 16: CWB0111 - a buffer passed to a system call is too small to contain the data back
    FnName: Pick-[IBM] [I pilot Access ODBC System] data type string truncation on the right.

    I searched on the web and it seems that the Linux/Unix driver for iSeries has some problems with Unicode, but my environment is Windows only.

    Any suggestions are welcome. Thank you!

    Did you follow all of the steps in your DB system specific Installation Guide? In particular, what exact ODBC driver are you using? Also, has confirmed the connection via the Client configuration wizard? Also found the following problem on a possible bug to theis URL: http://www.ibm.com/developerworks/forums/thread.jspa?messageID=14281148&tstart=0

    Hi all
    The problem is solved in half! This is a bug in the IBM driver.
    It's just exactly the same cause (locale) in the following thread:
    http://www.IBM.com/developerWorks/forums/thread.jspa?MessageID=14051384
    I think the problem is that the AS 400 (iSeries) responds with 30 characters and converted to UTF8 it is 31 bytes. This is a bug...
    If you want to ask more details, but in a nutshell, you need to assign some of your Linux/Unix environment variables what whatsoever NOT utf8!

    I hope this helps. If so, please check the response as helpful or appropriate.

  • Listener refused the connection with the following error: ORA-12505

    Hello
    Listener refused the connection with the following error: ORA-12505, TNS:listener does not currently know of SID given in connect descriptor The Connection descriptor used by the client was: 127.0.0.1:1521:XE 
    Windows XP + Oracle 10.1.0.20

    I checked my *.ora files and found the host 127.0.0.1 but I noticed by running the netstat command on prompt back most of my ports is captured by www.360.cn including 1521

    When I try to stop the following message is displayed:
    ORA-01034: ORACLE not available
    ORA-27101: shared memory realm does not exists
    Thank you and best regards

    Hello

    [oracle@myoramachine ~]$ oerr ora 12505
    12505, 00000, "TNS:listener does not currently know of SID given in connect descriptor"
    // *Cause:  The listener received a request to establish a connection to a
    // database or other service. The connect descriptor received by the listener
    // specified a SID for an instance (usually a database instance) that either
    // has not yet dynamically registered with the listener or has not been
    // statically configured for the listener. This may be a temporary condition
    // such as after the listener has started, but before the database instance
    // has registered with the listener.
    // *Action:
    //  - Wait a moment and try to connect a second time.
    //  - Check which instances are currently known by the listener by executing:
    //    lsnrctl services 
    //  - Check that the SID parameter in the connect descriptor specifies
    //    an instance known by the listener.
    //  - Check for an event in the listener.log file.
    [oracle@myoramachine ~]$
    

    1. check the lsnrctl services

    2 check the tnsping output:

    tnsping MYORACLE

    3. check the connectivity to the computer hosting your Oracle server to the port (I guess 1521):

    Telnet 1521

    4. in case you are not able to connect to the Oracle Server - I investigate it in several directions:

    -problem of network infrastructure

    -some process disturbing / virus on the server Oracle itself

    -firewall problem

    Good luck!

    ---------------------------------
    http://DBA-star.blogspot.com/

Maybe you are looking for