SAP loses connection to Sybase ASE database Could not connect to the server. JZ00M: Login timed out.

Hello all,

I'm currently having an issue on SAP system on Sybase ASE 15.7.0.013, where the SAP workprocess cannot reconnect to database.

When happens neither isql can connect to database:

JZ00M: Login timed out. Check that your database server is running on the host and port number you specified. Also, check the database server for other conditions (such as a full tempdb) that might be causing it to hang.

JZ00L: Login failed.  Examine the SQLWarnings chained to this exception for the reason(s).

Error code=0

SQL state=JZ00L

There is such space at tembdb.

We have checked the max connection pool but it isn't clear that is the real issue:

SELECT suser_name(suid),count(*) from master..sysprocesses group by suid;

,

'SAPSR3',104

(NULL),16

'jstask',4

'sapsa',3

sp_configure "number of user connections"

go

Parameter Name,Default,Memory Used,Config Value,Run Value,Unit,Type

'number of user connections    ','         25','      57999','         200','         200','number              ','dynamic             '

We have performed a trace of user connection , but we didn't get anything from this info:

dbcc traceon (11205)

go

Also we run a performance counter from Windows and we see that Sybase Kernel parameter were growing until database issue. Is ts_high parameter and also the Cache bytes peak from the Memory counter.

Please advice.

Thanks