From 6311dfd7ecb1e9f804709f22d9ae799a2d6ce884 Mon Sep 17 00:00:00 2001 From: Adrian Plata <51415348+adrian-plata@users.noreply.github.com> Date: Wed, 24 Jul 2019 14:44:40 -0700 Subject: [PATCH] Update release-notes.md --- ee/ucp/release-notes.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/ee/ucp/release-notes.md b/ee/ucp/release-notes.md index a2a7d9faef..6e09f9c9bc 100644 --- a/ee/ucp/release-notes.md +++ b/ee/ucp/release-notes.md @@ -208,14 +208,14 @@ In order to optimize user experience and security, support for Internet Explorer {{[fs_types]... ext4 = {features = has_journal,extent,huge_file,flex_bg,metadata_csum,64bit,dir_nlink,extra_isizeinode_size = 256}}} ``` - "metadata_csum" for ext4 is great. However, SLES12 and SLES15 call this an "experimental feature" and doesnt allow mounting of such blocks. The kubelet's mke2fs util looks up /etc/mke2fs.conf and formats the block volume with the checksum feature. Then the kubelet tries to mount the volume. But the kernel refuses to mount such a volume and errors with exit 32. + "metadata_csum" for ext4 is great. However, SLES12 and SLES15 call this an "experimental feature" and doesn't allow mounting of such blocks. The kubelet's mke2fs util looks up /etc/mke2fs.conf and formats the block volume with the checksum feature. Then the kubelet tries to mount the volume. But the kernel refuses to mount such a volume and errors with exit 32. Resolution: On SLES12 and SLES15 hosts, use `sed` to remove the `metadata_csum` feature from the ucp-kubelet container:`sed -i 's/metadata_csum,//g' /etc/mke2fs.conf` This resolution can be automated across your cluster of SLES12 and SLES15 hosts, by creating a docker swarm service as follows. Note that, for this, the hosts should be in "swarm" mode: - Create a global docker service that remove the "metadata_csum" feature from the mke2fs config file (/etc/mke2fs.conf) in ucp-kubelet container. For this, use the UCP client bundle to point to the UCP cluster and run the following swarm commands: + Create a global docker service that remove the "metadata_csum" feature from the mke2fs config file (/etc/mke2fs.conf) in ucp-kubelet container. For this, use the UCP client bundle to point to the UCP cluster and run the following swarm commands: ``` docker service create --mode=global --restart-condition none --mount type=bind,source=/var/run/docker.sock,target=/var/run/docker.sock mavenugo/swarm-exec:17.03.0-ce docker