7.1.1.7 LQH Errors

There is currently one ndbd error code associated with the LQH kernel block. This error code was added in NDB 7.2.6, and is shown in the following table:

NDBD_EXIT_LCP_SCAN_WATCHDOG_FAIL

XIE

LCP fragment scan watchdog detected a problem. Please report a bug.

At the lowest level, an LCP comprises a series of fragment scans. Scans are requested by the DBDIH Master using an LCP_FRAG_ORD signal to the DBLQH kernel block. DBLQH then asks the BACKUP block to perform a scan of the fragment, recording the resulting data to disk. This scan is run through the DBLQH block.