The RMU Dump Row_Cache command is intended for use as a
diagnostic aid that allows you to display the in-memory contents
of a row cache for an open database. Use this command to display
the following information for each row in the specified cache:
o GRIC - Address of the GRIC data structure for the cache slot
o GRIB - Address of the GRIB data structure for the cache slot
o SLOT - Slot number within the cache
o NXTGRIC - Slot number of the next slot within the hash chain
o LHMTE - Flag values indicating:
- L - Row is latched
- H - Row is marked Hot (modified since last checkpoint or
sweep)
- M - Row is marked Modified
- T - Row is marked Too Big for (or removed from) the cache
- E - End of on-disk checkpoint file; should never be seen
with the RMU Dump Row_Cache command
o SNAPPNO - Snapshot pointer (either snapshot page number or
snapshot slot number
o LEN - Length of the row in cache; 0 indicates row has been
deleted
o ACTLEN - Actual length of allocated space on the database page
for the row
o DBK - Database key for the row
o REFCNT - Reference count: number of processes with this row in
a cache working set
o UPD_PID - Process ID of process currently updating the row in
memory
o RVNO - In-memory row modification count
o TSN - Transaction sequence number of last transaction to
modify the row