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| author | Stan Hu <stanhu@gmail.com> | 2017-05-18 00:03:20 +0300 |
|---|---|---|
| committer | Stan Hu <stanhu@gmail.com> | 2017-05-18 00:03:20 +0300 |
| commit | 258f578fc8d58b3e343664ca59ab0df0d14057f0 (patch) | |
| tree | f04bd70518ec29dd9e086940534900861c5a4eea /doc/administration/high_availability/README.md | |
| parent | c75f1d3d441443a7effbeba74bdad7348432e299 (diff) | |
| parent | cd996c5c9c801f91fad7047f2b34909cf9d5ff8d (diff) | |
Merge branch 'docs-update-ha' into 'master'
Docs update ha
See merge request !11446
Diffstat (limited to 'doc/administration/high_availability/README.md')
| -rw-r--r-- | doc/administration/high_availability/README.md | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/doc/administration/high_availability/README.md b/doc/administration/high_availability/README.md index d5a5aef7ec0..4d3be0ab8f6 100644 --- a/doc/administration/high_availability/README.md +++ b/doc/administration/high_availability/README.md @@ -5,6 +5,20 @@ The solution you choose will be based on the level of scalability and availability you require. The easiest solutions are scalable, but not necessarily highly available. +GitLab provides a service that is usually essential to most organizations: it +enables people to collaborate on code in a timely fashion. Any downtime should +therefore be short and planned. Luckily, GitLab provides a solid setup even on +a single server without special measures. Due to the distributed nature +of Git, developers can still commit code locally even when GitLab is not +available. However, some GitLab features such as the issue tracker and +Continuous Integration are not available when GitLab is down. + +**Keep in mind that all Highly Available solutions come with a trade-off between +cost/complexity and uptime**. The more uptime you want, the more complex the +solution. And the more complex the solution, the more work is involved in +setting up and maintaining it. High availability is not free and every HA +solution should balance the costs against the benefits. + ## Architecture There are two kinds of setups: @@ -37,6 +51,10 @@ Block Device) to keep all data in sync. DRBD requires a low latency link to remain in sync. It is not advisable to attempt to run DRBD between data centers or in different cloud availability zones. +> **Note:** GitLab recommends against choosing this HA method because of the + complexity of managing DRBD and crafting automatic failover. This is + *compatible* with GitLab, but not officially *supported*. + Components/Servers Required: 2 servers/virtual machines (one active/one passive)  |