When the memory or memory controller of a host experiences an anomaly that results in an uncorrectable error, the system kernel automatically detects it and triggers an alert.
Hardware fault: the memory controller of the host { .labels.hostname } encountered an uncorrectable error. The error log recorded in the OS is: { .labels.message }
Hardware fault: the memory { .labels._mc_name } of the host { .labels.hostname } encountered an uncorrectable error. The error log recorded in the OS is: { .labels.message }
Uncorrectable errors indicate that the host memory is in an unstable state, which may cause anomalies in services or virtual machines on the host.
Possible causes include:
Memory controller anomaly
Memory hardware failure
Put the affected host into maintenance mode as soon as possible and migrate virtual machine workloads to avoid greater service impact caused by a host crash.
Contact the hardware vendor for memory replacement to completely resolve the issue.
