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Group replica wal segments by index

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This commit changes the replica path format to group segments within
a single index in the same directory. This is to eventually add the
ability to seek to a record on file-based systems without having
to iterate over the records. The DB shadow WAL will also be changed
to this same format to support live replicas.
This commit is contained in:
Ben Johnson
2021-06-14 15:19:27 -06:00
parent 55c17b9d8e
commit fc897b481f
12 changed files with 504 additions and 426 deletions
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2
file/replica_client_test.go
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@@ -118,7 +118,7 @@ func TestReplicaClient_WALSegmentPath(t *testing.T) {
t.Run("OK", func(t *testing.T) {
if got, err := file.NewReplicaClient("/foo").WALSegmentPath("0123456701234567", 1000, 1001); err != nil {
t.Fatal(err)
} else if want := "/foo/generations/0123456701234567/wal/000003e8_000003e9.wal.lz4"; got != want {
} else if want := "/foo/generations/0123456701234567/wal/000003e8/000003e9.wal.lz4"; got != want {
t.Fatalf("WALPath()=%v, want %v", got, want)
}
})