hadoop: use BufferPool for inputstream

[tangyoupeng]

No description provided.

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[codecov-commenter]

Codecov Report

Merging #2620 (42e7cee) into main (bb84127) will increase coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #2620      +/-   ##
==========================================
+ Coverage   59.67%   59.71%   +0.03%     
==========================================
  Files         138      138              
  Lines       23481    23481              
==========================================
+ Hits        14013    14022       +9     
+ Misses       7642     7637       -5     
+ Partials     1826     1822       -4     

Impacted Files	Coverage Δ
pkg/meta/sql.go	64.53% <0.00%> (ø)
pkg/meta/tkv.go	75.01% <0.00%> (+0.11%)	⬆️
pkg/chunk/disk_cache.go	79.70% <0.00%> (+0.49%)	⬆️
pkg/meta/tkv_etcd.go	72.63% <0.00%> (+1.05%)	⬆️
pkg/vfs/writer.go	77.68% <0.00%> (+1.19%)	⬆️

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