> > BTW, how do I resize the ODB.

ODB cannot be resized "online". Everything has to stop, save content to odb.json, get rid of old ODB.SHM, ensure ODB shared memory is destroyed (SysV or POSIX shared memory), 
create new ODB with new size, load odb.json. Feel free to punch this into chatgpt > odbresize.cxx, commit, test, push.

> I remember we discussed this some time ago, and concluded that odbedit needs a resize flag.

ODB cannot be resized online. ODB API has ODB clients holding ODB handles which are pointers (offsets) into ODB shared memory.

> Has this even been done?
> I guess this is still not done and the issue is still open: https://bitbucket.org/tmidas/midas/issues/329/need-odbresize
> I guess if we touch this maybe the problem with the wrong size should be also fixed: https://bitbucket.org/tmidas/midas/issues/328/odbinit-s-1024mb-creates-odb-with-wrong

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K.O.