Youngwb opened a new pull request #3869:
URL: https://github.com/apache/incubator-doris/pull/3869
According #3868, BE will core because of invalid address, This bug
happens occasionally because most of the time HyperLogLog's data are nullptr,
which does not cause crashes, but sometimes this value is invalid address,
which causes crashes during deserialize.
Whether slice data is nullptr or invalid address is determined by the
RowBlock, however the RowBlock did not use `memset` when it was initialized, so
invalid data may exist.
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