From ed8fc8fe0b2ce8058b8c14e84c4119d93acc6f76 Mon Sep 17 00:00:00 2001 From: Charalampos Kominos Date: Wed, 31 Jan 2018 13:59:48 +0100 Subject: [MaaS] Force Maas to use a fixed ip packet size Maas uses a tftp library during commisioning which in turn uses another library which tries to find the best packet size to use. For some reason during commisioning the library uses smaller sizes than the infrastructure can handle and therefore takes a lot of time to deploy. JIRA: ARMBAND-351 Change-Id: I9b3083a059c04b118e8b7f0f2723af67d96d2aad Signed-off-by: Charalampos Kominos --- .../0010-maas-region-allow-timeout-override.patch | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/mcp/patches/0010-maas-region-allow-timeout-override.patch b/mcp/patches/0010-maas-region-allow-timeout-override.patch index e3e15a8df..c6f9e3a52 100644 --- a/mcp/patches/0010-maas-region-allow-timeout-override.patch +++ b/mcp/patches/0010-maas-region-allow-timeout-override.patch @@ -31,6 +31,11 @@ reserved range, but instead DHCP will assign them *inside* the range. One alternative would be to handle this via API calls, for each node's PXE physical interface, but that overcomplicates things. +3. MaaS blocksize: For some reason the python library behind tftp forces ip +blocksize to be 1008. We can force it to be 1464 and gain some performance due +to MTU beeing 1500 (i.e. allow bigger packets). + + JIRA: FUEL-316 Signed-off-by: Alexandru Avadanii @@ -39,7 +44,7 @@ Signed-off-by: Alexandru Avadanii diff --git a/maas/region.sls b/maas/region.sls --- a/maas/region.sls +++ b/maas/region.sls -@@ -19,6 +19,36 @@ +@@ -19,6 +19,46 @@ - require: - pkg: maas_region_packages @@ -63,6 +68,16 @@ diff --git a/maas/region.sls b/maas/region.sls + - require_in: + - service: maas_region_services + ++maas_ip_blksize_force: ++ file.replace: ++ - name: "/usr/lib/python3/dist-packages/tftp/bootstrap.py" ++ - pattern: 'int_blksize = min\(\(int_blksize, MAX_BLOCK_SIZE\)\)' ++ - repl: 'int_blksize = 1464' ++ - require: ++ - pkg: maas_region_packages ++ - require_in: ++ - service: maas_region_services ++ +maas_interface_default_mode_dhcp: + file.replace: + - name: "/usr/lib/python3/dist-packages/maasserver/models/node.py" -- cgit 1.2.3-korg