fix: change default params

[hengfeiyang]

No description provided.

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (main@1b53ea8). Click here to learn what that means.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #392   +/-   ##
=======================================
  Coverage        ?   72.82%           
=======================================
  Files           ?       86           
  Lines           ?     4872           
  Branches        ?        0           
=======================================
  Hits            ?     3548           
  Misses          ?     1027           
  Partials        ?      297           

Impacted Files	Coverage Δ
pkg/core/index_shards.go	71.84% <ø> (ø)
pkg/core/index_document.go	76.31% <100.00%> (ø)
pkg/core/index_shards_wal.go	43.01% <100.00%> (ø)
pkg/core/index_shards_wallist.go	94.23% <100.00%> (ø)
pkg/wal/wal.go	80.43% <100.00%> (ø)

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