Mirroristas/etcd
2
0
Fork 0
mirror of https://github.com/etcd-io/etcd.git synced 2024-09-27 06:25:44 +00:00
Code Issues Packages Projects Releases Wiki Activity

*: support wal dir

Browse Source
This commit is contained in:
Xiang Li
2015-08-31 15:01:18 -07:00
parent 3c1f80bdff
commit d94e712d91
7 changed files with 42 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
Documentation/admin_guide.md
View File

@@ -8,6 +8,9 @@ When first started, etcd stores its configuration into a data directory specifie
Configuration is stored in the write ahead log and includes: the local member ID, cluster ID, and initial cluster configuration.
The write ahead log and snapshot files are used during member operation and to recover after a restart.
Having a dedicated disk to store wal files can improve the throughput and stabilize the cluster.
It is highly recommended to dedicate a wal disk and set `--wal-dir` to point to a directory on that device for a production cluster deployment.
If a member’s data directory is ever lost or corrupted then the user should remove the etcd member from the cluster via the [members API][members-api].
A user should avoid restarting an etcd member with a data directory from an out-of-date backup.
@@ -24,6 +27,8 @@ The data directory has two sub-directories in it:
1. wal: write ahead log files are stored here. For details see the [wal package documentation][wal-pkg]
2. snap: log snapshots are stored here. For details see the [snap package documentation][snap-pkg]
If `--wal-dir` flag is set, etcd will write the write ahead log files to the specified directory instead of data directory.
[wal-pkg]: http://godoc.org/github.com/coreos/etcd/wal
[snap-pkg]: http://godoc.org/github.com/coreos/etcd/snap