How To Install lmdb on Fedora 34

lmdb is Memory-mapped key-value database Memory-mapped key-value database

Introduction

In this tutorial we learn how to install lmdb on Fedora 34.

What is `lmdb`

LMDB is an ultra-fast, ultra-compact key-value embedded data store developed by Symas for the OpenLDAP Project. By using memory-mapped files, it provides the read performance of a pure in-memory database while still offering the persistence of standard disk-based databases, and is only limited to the size of the virtual address space. lmdb 0.9.29 1.fc34 x86_64 32 k lmdb-0.9.29-1.fc34.src.rpm fedora Memory-mapped key-value database http OpenLDAP LMDB is an ultra-fast, ultra-compact key-value embedded data store developed by Symas for the OpenLDAP Project. By using memory-mapped files, it provides the read performance of a pure in-memory database while still offering the persistence of standard disk-based databases, and is only limited to the size of the virtual address space.

We can use yum or dnf to install lmdb on Fedora 34. In this tutorial we discuss both methods but you only need to choose one of method to install lmdb.

Install lmdb on Fedora 34 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

After updating yum database, We can install lmdb using dnf by running the following command:

sudo dnf -y install lmdb

Install lmdb on Fedora 34 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

The output should look something like this:

Fedora 34 - x86_64                               20 kB/s | 6.6 kB     00:00
Fedora 34 openh264 (From Cisco) - x86_64        1.4 kB/s | 989  B     00:00
Fedora Modular 34 - x86_64                       68 kB/s | 6.5 kB     00:00
Fedora 34 - x86_64 - Updates                    3.5 kB/s | 6.2 kB     00:01
Fedora Modular 34 - x86_64 - Updates             17 kB/s | 5.9 kB     00:00
Metadata cache created.

After updating yum database, We can install lmdb using yum by running the following command:

sudo yum -y install lmdb

How To Uninstall lmdb on Fedora 34

To uninstall only the lmdb package we can use the following command:

sudo dnf remove lmdb

lmdb Package Contents on Fedora 34

/usr/bin/mdb_copy
/usr/bin/mdb_dump
/usr/bin/mdb_load
/usr/bin/mdb_stat
/usr/lib/.build-id
/usr/lib/.build-id/4b
/usr/lib/.build-id/4b/a7691e6b7d3290028bfdc2f966b5fd699284fa
/usr/lib/.build-id/52
/usr/lib/.build-id/52/44f3cbe7d0c65587bdbf184dc6b378a334e3e8
/usr/lib/.build-id/59
/usr/lib/.build-id/59/4f14f219af2dc1f64b3fd958ea3763773f167d
/usr/lib/.build-id/eb
/usr/lib/.build-id/eb/f0c8172cc461bf846ab3e86f46dead5188c323
/usr/share/man/man1/mdb_copy.1.gz
/usr/share/man/man1/mdb_dump.1.gz
/usr/share/man/man1/mdb_load.1.gz
/usr/share/man/man1/mdb_stat.1.gz
/usr/bin/mdb_copy
/usr/bin/mdb_dump
/usr/bin/mdb_load
/usr/bin/mdb_stat
/usr/lib/.build-id
/usr/lib/.build-id/58
/usr/lib/.build-id/58/a289fe64ebdf9a08a5656f18aeaa07659f1f1e
/usr/lib/.build-id/69
/usr/lib/.build-id/69/d1ece71ae99e385bbabf9917eca0c9e111a602
/usr/lib/.build-id/d3
/usr/lib/.build-id/d3/4feb8b7bc4f175208389aab519cc184593cb9f
/usr/lib/.build-id/d4
/usr/lib/.build-id/d4/25d0933a568ff0dac4a5d07a35b85d5fdef3c3
/usr/share/man/man1/mdb_copy.1.gz
/usr/share/man/man1/mdb_dump.1.gz
/usr/share/man/man1/mdb_load.1.gz
/usr/share/man/man1/mdb_stat.1.gz

References

[lmdb website](http://symas.com/mdb http://symas.com/mdb)

Summary

In this tutorial we learn how to install lmdb on Fedora 34 using yum and dnf.