From a062281d376dffa85db2759a2263b868fac8fd83 Mon Sep 17 00:00:00 2001 From: Mike Ovsiannikov Date: Sun, 15 May 2022 15:07:43 -0700 Subject: [PATCH] Wiki: minor administrator's guide corrections. --- wiki/Administrator's-Guide.md | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/wiki/Administrator's-Guide.md b/wiki/Administrator's-Guide.md index 6d155f5e7..97f472dd0 100644 --- a/wiki/Administrator's-Guide.md +++ b/wiki/Administrator's-Guide.md @@ -79,7 +79,7 @@ modifications since the backup will be lost. **Note:** The location of the *metaServer.cpDir* and *metaServer.logDir* should not change. -Meta server replication (VR) +Meta Server Replication (VR) ---------------------------- Meta server replication provides fault tolerance at the meta server level. The file system can be configured with multiple meta server nodes, in order to @@ -227,7 +227,7 @@ With default parameters system switch over time (new primary election, and chunk servers and clients connecting to the new primary) should be around 10 seconds. -VR status +VR Status ---------- `qfsadmin vr_get_status` can be used to query VR status of the file system or status of specific meta server node.(with -n parameter) @@ -317,8 +317,8 @@ to clear VR configuration, and exit to inactivate all VR nodes, and exit -Recovering file system by truncating transaction log. ------------------------------------------------------ +Recovering File System by Truncating Transaction Log +---------------------------------------------------- The [`qfsmetalogtruncate.sh`](https://github.com/quantcast/qfs/blob/master/scripts/qfsmetalogtruncate.sh) can be used to recover file system in case if the meta server state diverges between run time and replay due to a hardware malfunction (for example memory @@ -354,8 +354,8 @@ the scrips runs as root, it will preserve original files and directories ownership (user and group). -Hitless meta server version upgrade. ------------------------------------- +Hitless Meta Server Version Upgrade +----------------------------------- Unless specifically mentioned in release notes, QFS meta server versions are backward compatible. Backward compatibility allows to perform "hitless" (no downtime) upgrade of the meta nodes in VR configuration. However hitless @@ -403,8 +403,8 @@ The `qfsfsck` tool can be employed in three ways: - Check the integrity of a file system archive/backup (checkpoint plus a set of transaction logs). -Running the File System ------------------------ +Running File System Integrity Verification +------------------------------------------ In order to verify the integrity of a running file system by identifying lost files or files with chunk placement problems, run: