pmm-admin purge error at pmm 1.13

i’m upgrate pmm 1.10 to 1.13.

command : pmm-admin purge mysql:metrics

then it does not work and error message out.

panic: interface conversion: interface {} is nil, not map[string]interface {}

goroutine 1 [running]:*Admin).PurgeMetrics(0xbe4e60, 0x7ffdfb2ad8ca, 0xd, 0xc4201c8a58, 0xc420191b68, 0x7ff262)
/tmp/go/src/ +0x5a4
main.glob…func39(0xbde460, 0xc420139120, 0x2, 0x2)
/tmp/go/src/ +0xd1*Command).execute(0xbde460, 0xc4201390a0, 0x2, 0x2, 0xbde460, 0xc4201390a0)
/tmp/go/src/ +0x2a2*Command).ExecuteC(0xbdeb20, 0xc420191dd0, 0x49b302, 0x0)
/tmp/go/src/ +0x2d4*Command).Execute(0xbdeb20, 0xc0263c, 0x92bf0f)
/tmp/go/src/ +0x2b
/tmp/go/src/ +0x18dc

same error , still not answer

next1009 , Fan

It indeed looks like you hit the very same issue.

I was able to reproduce the same behaviour on PMM 1.13 and have reported internally a bug report.