How to view the data stored in levelDB in ceph

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This program is used to see what values / var/lib/ceph/osd/ceph-1/current/omap are stored in leveldb in ceph and store the query results in the levelDBFile.txt file.

# include # include "leveldb/db.h" # include "leveldb/env.h" # include "leveldb/write_batch.h" # include "leveldb/cache.h" using namespace std;int main () {leveldb::DB* db; leveldb::Options options; options.create_if_missing = true; leveldb::Status status = leveldb::DB::Open (options, "/ var/lib/ceph/osd/ceph-1/current/omap", & db) Assert (status.ok ()); ofstream outfile; outfile.open ("levelDBFile.txt", ios::out); if (! outfile) {cout Valid (); it- > Next () {outfile key () .ToString ()