今天做数据处理的时候突然收到一条告警： ORA-00445: background process "m000" did not start after 120 seconds host:xxxxstbdb 环境是：RAC+DG 11Gr2 11.2.0.4
报错的是DG节点。
查看了下MOS上的描述如下：
This bug is only relevant when using Real Application Clusters (RAC) and Automatic Storage Management (ASM)
ASM M000 doesn't start in less than 120 secs, when getting instance information that is maintained by RAC (e.g. Total CPU count) Rediscovery Notes 1. Process M00 from a ASM instance is not starting after 120 seconds ORA-445: background process "m000" did not start after 120 seconds 2. Callstack for the process: ... #6 0x000000000247a036 in kxfpiinfo () #7 0x0000000002479811 in kxfpGetTotalCpuCount () #8 0x00000000023d94d8 in kkfdGetKspDegreeLimit () #9 0x0000000001b22883 in qksceRefreshEnvFromKsp () #10 0x0000000001b27e6b in qksceFillSesEnv () #11 0x0000000000f95e46 in ksucre () #12 0x0000000001014bfd in ksvrdp () #13 0x000000000379af79 in opirip () #14 0x00000000022a5ac8 in opidrv () #15 0x0000000002b0a0d2 in sou2o () #16 0x0000000000bec50d in opimai_real () #17 0x0000000002b14eac in ssthrdmain () #18 0x0000000000bec426 in main () - in this case we have the function kxfpGetTotalCpuCount(), which is trying to get information that is stored by RAC.
