In the logs, after I got the OOM, I noticed I had several thousand lines
similar to the following:
CachedPlan: 7168 total in 3 blocks; 2472 free (0 chunks); 4696 used
CachedPlan: 7168 total in 3 blocks; 3200 free (0 chunks); 3968 used
CachedPlan: 1024 total in 1 blocks; 64 free (0 chunks); 960 used
CachedPlanSource: 3072 total in 2 blocks; 1288 free (1 chunks); 1784
used
CachedPlanQuery: 1024 total in 1 blocks; 112 free (0 chunks); 912 used
SPI Plan: 1024 total in 1 blocks; 832 free (0 chunks); 192 used
I am not exactly sure what this means, but could it be that the CachedPlans
are somehow not being freed and are accumulating until the OOM?
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