Merge pull request #5569 from dolthub/andy/speedup-bats

[no-release-notes] go/store/nbs: tweak chunk journal IO parameters

.github/workflows/ci-bats-unix.yaml

@@ -104,8 +104,8 @@ jobs:
       - name: Install Maven
         working-directory: ./.ci_bin
         run: |
-          curl -LO https://dlcdn.apache.org/maven/maven-3/3.8.7/binaries/apache-maven-3.8.7-bin.tar.gz
-          tar -xf apache-maven-3.8.7-bin.tar.gz
+          curl -LO https://dlcdn.apache.org/maven/maven-3/3.9.0/binaries/apache-maven-3.9.0-bin.tar.gz
+          tar -xf apache-maven-3.9.0-bin.tar.gz
           echo "$(pwd)/apache-maven-3.8.7/bin" >> $GITHUB_PATH
       - name: Install Hadoop
         working-directory: ./.ci_bin

go/store/nbs/journal_writer.go

@@ -27,7 +27,7 @@ import (
 )
 
 const (
-	chunkJournalFileSize = 256 * 1024 * 1024
+	chunkJournalFileSize = 16 * 1024
 
 	// todo(andy): buffer must be able to hold an entire record,
 	//   but we don't have a hard limit on record size right now
@@ -36,7 +36,7 @@ const (
 	chunkJournalAddr = "vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv"
 
 	journalIndexFileName        = "journal.idx"
-	journalIndexDefaultMaxNovel = 64 * 1024
+	journalIndexDefaultMaxNovel = 4096
 )
 
 var (