How to remove a ghost backup server process

1.Symptom

Backup server fail to start up with the following error log. Because the port of BS already in use.

Oct 11 10:55:48 2013: Backup Server: 1.70.1.1: Configuring the maximum shared memory usage to 48 MB.

Oct 11 10:55:48 2013: Backup Server: 1.69.1.2: Configuring the number of service threads to 48.

Oct 11 10:55:48 2013: Backup Server: 1.70.1.3: Configuring the shared memory per stripe to 1048576 bytes.

Oct 11 10:55:48 2013: Open Server Error: 16240.10.0: Net-Library routine sybnet_listen() failed in srv__start_net

Network error: status = 23 - Net-Lib protocol driver call to register a listener failed.

Oct 11 10:55:48 2013: Open Server Server Fatal Error: 16029.20.0: Failed to start any network listeners

2.Environment

SAP Business Suite running on SAP SYBASE ASE 15.7

SAP SYBASE ASE all versions

3.Cause

1. Backup Server is already running

2. When backup server is terminated abnormally, it sometimes happens that parts of Backup processes remains on the host.

4.Resolution

Using the following steps to remove the remaining BS processes.

1. Log on to the operating system with user sybase

2. Use the following command to check whether backup server process is running.

When BS process is still running after abnormal termination,You have to find the invalid process and you have to terminate the process.

step1)

$showserver

shong2 12779544 0.0 0.0 8760 8324 pts/1 A 10:05:37 0:00 /home/shong2/ASE-15_0/bin/backupserver

-e/home/shong2/ASE-15_0/install/ase1570_back.log -N25 -C20 -M/home/shong2/ASE-15_0/bin/sybmultbuf -Sase1570_back

$kill 12779544

step2)

$ps -eaf|grep sybmultbuf

shong2 8978500 12779544 13 10:50:36 pts/1 0:00 /home/shong2/ASE-15_0/bin/sybmultbuf 23 9 12 /home/shong2/ASE-

15_0/install/ase1570_back.log 0 32505867 /home/shong2/ASE- 15_0/install/sybsystemprocs.dmp 4 0

sybsystemprocs /tmp/ase1570_back5 0 0 0 65536 0 0 0 10 11 1

shong2 12582930 15138910 0 10:50:38 pts/1 0:00 grep sybmultbuf

shong2 22872146 8978500 2 10:50:36 pts/1 0:00 /home/shong2/ASE-15_0/bin/sybmultbuf 23 9 12 /home/shong2/ASE-

15_0/install/ase1570_back.log 0 32505867 /home/shong2/ASE-15_0/install/sybsystemprocs.dmp 4 0 sybsystemprocs /tmp/ase1570_back5 0 0

0 65536 0 0 0 10 11 1

step3)

$kill 8978500

$kill 22872146

3. Connect to the database server using isql and find the session executing dump database.

isql -Usapsa -S<servername> -D<dbname>

Password:

1> select suid,name from master..sysprocesses where cmd like "%DUMP DATABASE%"

2> go

kill the spid executing dump database

1928596 - SAP SYBASE ASE : How to remove a ghost backup server process ?

Version 1 Validity: 21.10.2013 - active Language English

1> kill spid

2> go

4. Start the Backup server,Again.

Keywords

Failed to start any network listeners, Backup server , Error: 16029.20.0,ghost process