What does the error %GTM-E-REQRUNDOWN mean ?

When I try

GTM>D Q^DI 

i get this:

GTM>D Q^DI
%GTM-E-REQRUNDOWN, Error accessing database /home/vista/EHR/g/mumps.dat.  Must be rundown on cluster node poohbah.
At M source location Q^DI

I know that poohbah is the name of my pc, and I know that I have VistA globals stored in /home/vista/EHR/g/mumps.dat but I don't know what to do. It seems that surely the database is broken.

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This error usually occurs because a GT.M system has been stopped before it had a chance to save all the work in memory onto the Host File System (hard disk) file where the MUMPS data is stored.

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K.S. Bhaskar suggests that you set up before image journaling and perform a mupip journal recover on the database when you boot up your computer.

Related questions are: How do I know if I am running journaling? How do I set up VistA ? and How do I set up GT.M ?

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To fix the %GTM-E-REQRUNDOWN error, you should run a Linux program named mupip which is part of GT.M, with the sub-command "rundown"

there are two variants of this:

The first variant will probably fix your immediate problem of the error, but if you don't perform a journal recovery, you will probably loose data.

$ $gtm_dist/mupip rundown -r "*"

This calls the mupip command in the directory named by the environment variable named "gtm_dist", and tells the rundown sub-command that all regions should be rundown.

The second variant is useful if you run out of semaphores in memory.

$ $gtm_dist/mupip rundown

This calls the mupip command in the directory named by the environment variable named "gtm_dist", and tells the rundown sub-command that memory semaphores that are not being used should be cleaned up.