Fix miscreating column families when opening with the readonly mode #1645
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Currently, kvrocks2redis will read and parse data from the local DB
with opening in read-only mode, and it will be failed if the Kvrocks
is running on the same DB dir.
The root cause is the running Kvrocks would acquire the DB lock and
kvrocks2redis would try to acquire this DB lock as well when creating
column families.
Before applying this patch:
❯ ./kvrocks2redis -c kvrocks2redis.conf Version: unstable @6350d72 E20230806 23:46:56.435000 18548092 main.cc:151] Failed to create pidfile './kvrocks2redis.pid': File exists
After applying this patch:
This fixes #1644.