Troubleshooting
Problem
db2start completes successfully but with a warning message "libnuma: Warning: /sys not mounted or invalid."
Symptom
$ db2start
libnuma: Warning: /sys not mounted or invalid. Assuming one node: No such file or directory
2017-12-14 14:28:44 0 0 SQL1063N DB2START processing was successful.
SQL1063N DB2START processing was successful.
db2diag.log:
2017-12-19-15.00.09.447117+480 E135107179E487 LEVEL: Warning (OS)
PID : 104183 TID : 140737016641312 PROC : db2star2
INSTANCE: db2inst1 NODE : 000
HOSTNAME: myhost1
FUNCTION: DB2 UDB, oper system services, sqloKADetermineNUMASupport, probe:50
CALLED : OS, -, open
OSERR : -1 "Unknown error 18446744073709551615"
DATA #1 : Hexdump, 65171 of 4028196206 bytes
Object not dumped: Address: 0x0000000000000000 Size: 4028196206 Reason: Address is NULL
libnuma: Warning: /sys not mounted or invalid. Assuming one node: No such file or directory
2017-12-14 14:28:44 0 0 SQL1063N DB2START processing was successful.
SQL1063N DB2START processing was successful.
db2diag.log:
2017-12-19-15.00.09.447117+480 E135107179E487 LEVEL: Warning (OS)
PID : 104183 TID : 140737016641312 PROC : db2star2
INSTANCE: db2inst1 NODE : 000
HOSTNAME: myhost1
FUNCTION: DB2 UDB, oper system services, sqloKADetermineNUMASupport, probe:50
CALLED : OS, -, open
OSERR : -1 "Unknown error 18446744073709551615"
DATA #1 : Hexdump, 65171 of 4028196206 bytes
Object not dumped: Address: 0x0000000000000000 Size: 4028196206 Reason: Address is NULL
[{"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":"Operating System \/ Hardware - Other OS\/Hardware","Platform":[{"code":"PF016","label":"Linux"}],"Version":"10.5;11.1","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
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Document Information
Modified date:
30 April 2025
UID
swg22013988