Why I did it
Sharing the storage of syncd with other proprietary application extensions allows them to communicate with syncd in differnt ways.
If one container wants to pass some information to syncd then shared storage can be used. However, today the shared storage isn't cleaned on restarts making it possible for syncd to read out-of-date information generated in the past.
NOTE: No plans to use it for standard SONIC dockers and we are working on removing the SDK dependency from PMON docker
How I did it
Implemented new service to clean the shared storage.
How to verify it
Do reboot/fast-reboot/warm-reboot/config-reload/systemctl restart swss and verify /tmp/ is cleaned after each restart in syncd container.
Signed-off-by: Stepan Blyschak <stepanb@nvidia.com>
* Added VNET_MONITOR_TABLE, BFD_SESSION_TABLE, to the listof tables to be cleaned up after swss restart.
* Added VNET_ROUTE* table in cleanup. This should cover VNET_ROUTE_TUNNEL_TABLE as well.
- Why I did it
Add support for static DNS configuration. According to sonic-net/SONiC#1262 HLD.
- How I did it
Add a new resolv-config.service that is responsible for transferring configuration from Config DB into /etc/resolv.conf file that is consumed by various subsystems in Linux to resolve domain names into IP addresses.
- How to verify it
Run the image compilation. Each component related to the static DNS feature is covered with the unit tests.
Run sonic-mgmt tests. Static DNS feature will be covered with the system tests.
Install the image and run manual tests.
This reverts commit 02b17839c3.
Reverts #14933
The earlier commit caused a race condition that particularly broke cross branch warm upgrade.
Issue happens when db_migrator is still migrating the DB and finalizer is checking DB for list of components to reconcile.
If migration is not complete, finalizer get an empty list to wait for. Due to this, finalizer concludes warmboot (deletes system wide warmboot flag) and cause all the services to do cold restart.
ADO: 24274591
* Re-add 127.0.0.1/8 when bringing down the interfaces
With #5353, 127.0.0.1/16 was added to the lo interface, and then
127.0.0.1/8 was removed. However, when bringing down the lo interface,
like during a config reload, 127.0.0.1/16 gets removed, but 127.0.0.1/8
isn't added back to the interface. This means that there's a period of
time where 127.0.0.1 is not available at all, and services that need to
connect to 127.0.01 (such as for redis DB) will fail.
To fix this, when going down, add 127.0.0.1/8. Add this address before
the existing configuration gets removed, so that 127.0.0.1 is available
at all times.
Note that running `ifdown lo` doesn't actually bring down the loopback
interface; the interface always stays "physically" up.
Signed-off-by: Saikrishna Arcot <sarcot@microsoft.com>
Add watchdog mechanism to swss service and generate alert when swss have issue.
**Work item tracking**
Microsoft ADO (number only): 16578912
**What I did**
Add orchagent watchdog to monitor and alert orchagent stuck issue.
**Why I did it**
Currently SONiC monit system only monit orchagent process exist or not. If orchagent process stuck and stop processing, current monit can't find and report it.
**How I verified it**
Pass all UT.
Manually test process_monitoring/test_critical_process_monitoring.py can pass.
Add new UT https://github.com/sonic-net/sonic-mgmt/pull/8306 to check watchdog works correctly.
Manually test, after pause orchagent with 'kill -STOP <pid>', check there are warning message exist in log:
Apr 28 23:36:41.504923 vlab-01 ERR swss#supervisor-proc-watchdog-listener: Process 'orchagent' is stuck in namespace 'host' (1.0 minutes).
**Details if related**
Heartbeat message PR: https://github.com/sonic-net/sonic-swss/pull/2737
UT PR: https://github.com/sonic-net/sonic-mgmt/pull/8306
For T2 systems using packet mode, the backplane interfaces (Ethernet-BP#) and the fabric card ethernet interfaces are not visible as neighbor interfaces.
In packet mode, these interfaces needs qos and buffer config as well.
This fix addresses that issue and adds the backplane interfaces to the PORTS_ACTIVE list
Why I did it
After docker_inram is enabled, the docker folder's default max size is 1.5G.
It's not big enough for some tests which need to install additional docker images or install extra packages.
Work item tracking
Microsoft ADO 24199761:
How I did it
add docker_inram into cmdline_allowlist
How to verify it
sudo sh -c 'echo "docker_inram_size=3000M" >> kernel-cmdline-append'
sudo reboot and check the docker folder size
This reverts commit 44427a2f6b.
Docker image not updated during PR validation and caused PR check failures.
Force merge this revert. After cache is updated after this PR is merged, issue should be fixed.
This PR depends on https://github.com/sonic-net/sonic-swss/pull/2737 merge first.
**What I did**
Add orchagent watchdog to monitor and alert orchagent stuck issue.
**Why I did it**
Currently SONiC monit system only monit orchagent process exist or not. If orchagent process stuck and stop processing, current monit can't find and report it.
**How I verified it**
Pass all UT.
Add new UT https://github.com/sonic-net/sonic-mgmt/pull/8306 to check watchdog works correctly.
Manually test, after pause orchagent with 'kill -STOP <pid>', check there are warning message exist in log:
Apr 28 23:36:41.504923 vlab-01 ERR swss#supervisor-proc-watchdog-listener: Process 'orchagent' is stuck in namespace 'host' (1.0 minutes).
**Details if related**
Heartbeat message PR: https://github.com/sonic-net/sonic-swss/pull/2737
UT PR: https://github.com/sonic-net/sonic-mgmt/pull/8306
In the PR sonic-net/sonic-utilities#2850 , for support remote access of linecards paramiko package is installed in sonic-utilities. libffi-dev needs to installed to be able to compile for armhf image
Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>
Why I did it
Fix the issue where db_migrator is called before DB is loaded w/ config. This leads to db_migrator:
Not finding anything, and resumes to incorrectly migrate every missing config
This is not expected. migration should happen after the old config is loaded and only new schema changes need migration.
Since DB does not have anything when migrator is called, db_migrator fails when some APIs return None.
The reason for incorrect call is that:
database service starts db_migrator as part of startup sequence.
config-setup service loads data from old-config/minigraph. However, since it has Requires=database.service.
Hence, config-setup starts only when database service is started. And database service is started when db_migrator is completed.
Fixed by:
Check if this is first time boot by checking pending_config_migration flag.
If pending_config_migration is enabled, then do not call db_migrator as part of database service startup.
Let database service start which triggers config-setup service to start.
Now call db_migrator after when config-setup service loads old-config/minigraph
* Update PG headroom settings ports based on port speed/cable length
* Updated XOFF settings to use chip level numbers than core
* Updated PG headroom based on uplink/downlink side
* fix for sonic-config-gen tests
* More fixes for unit test cases
* more test fixes
* Merged multiple functions into one
Add new Nokia build target and establish an arm64 build:
Platform: arm64-nokia_ixs7215_52xb-r0
HwSKU: Nokia-7215-A1
ASIC: marvell
Port Config: 48x1G + 4x10G
How I did it
- Change make files for saiserver and syncd to use Bulleseye kernel
- Change Marvell SAI version to 1.11.0-1
- Add Prestera make files to build kernel, Flattened Device Tree blob and ramdisk for arm64 platforms
- Provide device and platform related files for new platform support (arm64-nokia_ixs7215_52xb-r0).
Some devices running SONiC have a small storage device (2G and 4G mainly)
The SONiC image growth over time has made it impossible to install
2 images on a single device.
Some mitigations have been implemented in the past for some devices but
there is a need to do more.
One such mitigation is `docker_inram` which creates a `tmpfs` and
extracts `dockerfs.tar.gz` in it.
This all happens in the SONiC initramfs and by ensuring the installation
process does not extract `dockerfs.tar.gz` on the flash but keep the file as is.
This mitigation does a tradeoff by using more RAM to reduce the disk footprint.
It however creates new issues for devices with 4G of system memory since
the extracted `dockerfs.tar.gz` nears the 1.6G.
Considering debian upgrades (with dual base images) and the continuous
stream of features this is only going to get bigger.
This change introduces an alternative to the `tmpfs` by allowing a system
to extract the `dockerfs.tar.gz` inside a `zram` device thus bringing
compression in play at the detriment of performance.
Introduce 2 new optional kernel parameters to be consumed by SONiC initramfs.
- `docker_inram_size` which represent the max physical size of the
`zram` or `tmpfs` volume (defaults to DOCKER_RAMFS_SIZE)
- `docker_inram_algo` which is the method to use to extract the
`dockerfs.tar.gz` (defaults to `tmpfs`)
other values are considered to be compression algorithm for `zram`
(e.g `zstd`, `zlo-rle`, `lz4`)
Refactored the logic to mount the docker fs in the SONiC initramfs under
the `union-mount` script.
Moved the code into a function to make it cleaner and separated the
inram volume creation and docker extraction.
On Arista platform with a flash smaller or equal to 4GB set
`docker_inram_algo` to `zstd` which produces the best compression ratio
at the detriment of a slower write performance and a similar read
performance to other `zram` compression algorithms.
Enable docker_inram for all systems with 4GB or less of flash.
This is mandatory to allow these systems to store 2 SONiC images.
This change also fixes the missing docker_inram attribute when
installing a new image from SONiC.
Because the SWI image can ship with additional kernel parameters within
such as `sonic_fips=` this lead to a conflict.
To prevent the conflict, the extra kernel parameters from the SWI are
now stored in the file `kernel-cmdline-append` which isn't used anywhere.
* To resolve NEIGH table entries present in CONFIG_DB. Without this change arp/ndp entries which we wish to resolve, and configured via CONFIG_DB are not resolved.
Why I did it
Current regex not able to capture logs, modify regex to capture syslog messages
Work item tracking
Microsoft ADO (number only): 13366345
How I did it
Code change
How to verify it
sonic-mgmt test case
Why I did it
Support for SONIC chassis isolation using TSA and un-isolation using TSB from supervisor module
Work item tracking
Microsoft ADO (number only): 17826134
How I did it
When TSA is run on the supervisor, it triggers TSA on each of the linecards using the secure rexec infrastructure introduced in sonic-net/sonic-utilities#2701. User password is requested to allow secure login to linecards through ssh, before execution of TSA/TSB on the linecards
TSA of the chassis withdraws routes from all the external BGP neighbors on each linecard, in order to isolate the entire chassis. No route withdrawal is done from the internal BGP sessions between the linecards to prevent transient drops during internal route deletion. With these changes, complete isolation of a single linecard using TSA will not be possible (a separate CLI/script option will be introduced at a later time to achieve this)
Changes also include no-stats option with TSC for quick retrieval of the current system isolation state
This PR also reverts changes in #11403
How to verify it
These changes have a dependency on sonic-net/sonic-utilities#2701 for testing
Run TSA from supervisor module and ensure transition to Maintenance mode on each linecard
Verify that all routes are withdrawn from eBGP neighbors on all linecards
Run TSB from supervisor module and ensure transition to Normal mode on each linecard
Verify that all routes are re-advertised from eBGP neighbors on all linecards
Run TSC no-stats from supervisor and verify that just the system maintenance state is returned from all linecards
- Why I did it
We suspect the issue #13791 is caused by redis server being temporarily unavailable during system initialization so we do not use -d in sonic-cfggen, for now, to avoid accessing redis server
- How I did it
Provide a string containing required json data when calling sonic-cfggen
- How to verify it
Manually test it
Signed-off-by: Stephen Sun <stephens@nvidia.com>
Part of sonic-net/sonic-utilities#2760
Similar to #14295
- Why I did it
To clear teamd timer when fast-reboot is finalized to prevent any further affect.
- How I did it
Deleted teamd timer from config-db in fast-reboot finalizer.
config save call is moved to after clearing teamd-timer so it won't have any further affect as well.
- How to verify it
Verified manually that entry was deleted after fast-reboot was finailized.
rasdaemon is a tool to log hardware errors. It takes 100% CPU during
boot for a few seconds. It impacts fast/warm boot by delaying control
plane restoration for 5 sec on some platforms.
Signed-off-by: Stepan Blyschak <stepanb@nvidia.com>
#### Why I did it
Implementing code changes for https://github.com/sonic-net/SONiC/pull/1203
#### How I did it
Removed the timers and delayed target since the delayed services would start based on event driven approach.
Cleared port table during config reload and cold reboot scenario.
Modified yang model, init_cfg.json to change has_timer to delayed
#### How to verify it
Running regression
