How To Install Apache Cassandra On Windows

If you are upgrading Teamwork Cloud from a version lower than 18.5, do not upgrade Cassandra to 3.eleven-2 until you take followed the directions for Upgrading Teamwork Cloud.

This page provides the instructions to install and configure Cassandra on Windows.

Prior to installing Cassandra, it is of import to understand how Cassandra utilizes disk space in order to properly configure the host server.

Deejay infinite depends on usage, so it'south of import to understand the mechanism. The database writes data to disk when appending data to the commitlog for immovability and when flushing memtables to SSTable data files for persistent storage. The commit log has a different access pattern (read/writes ratio) than the pattern for accessing information from SSTables. This is more important for spinning disks than for SSDs.

SSTables are periodically compacted. Compaction improves performance by merging and rewriting data and discarding old data. Still, depending on the type of compaction and size of the compactions, during compaction deejay utilization and data directory volume temporarily increases. For this reason, exist certain to get out an adequate amount of free disk space available on a node.

Compaction

In a worst-case scenario, compaction can potentially use the aforementioned corporeality of disk space as the dataset. Therefore, your data bulldoze utilization should be monitored for maximum growth, and volume size increased if it reaches over lxxx% utilization.

Cassandra's data and commit logs should not, nether any circumstances, be placed on the bulldoze where the operating system is installed. Ideally, a server would take 3-4 drives or partitions. Drive C:, the Os partition tin be used equally the target for the awarding. Drive D: should have adequate amounts of storage to accommodate your information. Bulldoze Eastward: would agree you commit logs (and unless SSD, should be on a different physical deejay than the information partition), and Bulldoze F: would be allocated for backups.

Commit logs

Commit logs should not be placed on the same partition equally data. Commit log utilization varies from a few megabytes upwards to 8 gigabytes, constantly fluctuating as memtables get flushed to deejay. This behavior, combined with transient growth of the information book during compaction, can upshot in a database crash due to running out of disk space.

Post-obit Microsoft Best Practices:

Your OS partition should be at least 60 GB.
The size of Drive D:, your information sectionalisation, will be dictated by the size and activity of the models in the repository. You should allocate as much as feasible but under no circumstances less than 250 GB.
Bulldoze E:, your commit log sectionalisation should exist at least 10GB (the commit logs are 8GB).
Drive F:, your backup partition, should be of the same size as Drive D:, and exist located on a different concrete drive.

Delight refer to http://cassandra.apache.org/doc/latest/operating/hardware.html for explanations on hardware selection.

Installing Cassandra on Windows

To install Cassandra on Windows

Log in to world wide web.nomagic.com with your Login Name and Password.
SelectTeamwork Cloud from the Download list.
Select the version y'all want to download and click .
Click cassandra_3112_installer_win64 to download information technology.
Right-click on the downloaded Cassandra installer and Run every bit administrator . Follow the steps in the installer setup wizard to install Cassandra.

One time you lot finished installing and configuring Cassandra, you lot can install TWCloud.

Data Resource allotment

When selecting the data folder and commit log folder, please accept into account the recommendations at the starting time of this section.

Uninstalling Cassandra on Windows

To uninstallApache Cassandra either:

Open the folderProgram Files > apache-cassandra-3.11.2, and double-click the filename Uninstall apache-cassandra-3.eleven.2.exe.
Go to Control Console > Plan and Features a nd correct-click Apache Cassandra and click Uninstall.