- Create a script in the orchagent docker container which listens for these encapsulated packets which are trapped to CPU (indicating that they cannot be routed/no neighbor info exists for the inner packet). When such a packet is received, the script will issue a ping command to the packet's inner destination IP to start the neighbor learning process.
- This script is also resilient to portchannel status changes (i.e. interface going up or down). An interface going down does not affect traffic sniffing on interfaces which are still up. When an interface comes back up, we restart the sniffer to start capturing traffic on that interface again.
- Why I did it
Initially, we used Monit to monitor critical processes in each container. If one of critical processes was not running
or crashed due to some reasons, then Monit will write an alerting message into syslog periodically. If we add a new process
in a container, the corresponding Monti configuration file will also need to update. It is a little hard for maintenance.
Currently we employed event listener of Supervisod to do this monitoring. Since processes in each container are managed by
Supervisord, we can only focus on the logic of monitoring.
- How I did it
We borrowed the event listener of Supervisord to monitor critical processes in containers. The event listener will take
following steps if it was notified one of critical processes exited unexpectedly:
The event listener will first check whether the auto-restart mechanism was enabled for this container or not. If auto-restart mechanism was enabled, event listener will kill the Supervisord process, which should cause the container to exit and subsequently get restarted.
If auto-restart mechanism was not enabled for this contianer, the event listener will enter a loop which will first sleep 1 minute and then check whether the process is running. If yes, the event listener exits. If no, an alerting message will be written into syslog.
- How to verify it
First, we need checked whether the auto-restart mechanism of a container was enabled or not by running the command show feature status. If enabled, one critical process should be selected and killed manually, then we need check whether the container will be restarted or not.
Second, we can disable the auto-restart mechanism if it was enabled at step 1 by running the commnad sudo config feature autorestart <container_name> disabled. Then one critical process should be selected and killed. After that, we will see the alerting message which will appear in the syslog every 1 minute.
- Which release branch to backport (provide reason below if selected)
201811
201911
[x ] 202006
Introduce tunnel manager daemon. Start the process as part of swss container
Submodule update for swss:
9ed3026 - 2020-12-24 : [NAT] ACL Rule with DO_NOT_NAT action is getting failed. (#1502) [Akhilesh Samineni]
c39a4b1 - 2020-12-23 : Mux/IPTunnel orchagent changes (#1497) [Prince Sunny]
bc8df0e - 2020-12-23 : Add support for headroom pool watermark (#1567) [Neetha John]
**- Why I did it**
To support dynamic buffer calculation.
This PR also depends on the following PRs for sub modules
- [sonic-swss: [buffermgr/bufferorch] Support dynamic buffer calculation #1338](https://github.com/Azure/sonic-swss/pull/1338)
- [sonic-swss-common: Dynamic buffer calculation #361](https://github.com/Azure/sonic-swss-common/pull/361)
- [sonic-utilities: Support dynamic buffer calculation #973](https://github.com/Azure/sonic-utilities/pull/973)
**- How I did it**
1. Introduce field `buffer_model` in `DEVICE_METADATA|localhost` to represent which buffer model is running in the system currently:
- `dynamic` for the dynamic buffer calculation model
- `traditional` for the traditional model in which the `pg_profile_lookup.ini` is used
2. Add the tables required for the feature:
- ASIC_TABLE in platform/\<vendor\>/asic_table.j2
- PERIPHERAL_TABLE in platform/\<vendor\>/peripheral_table.j2
- PORT_PERIPHERAL_TABLE on a per-platform basis in device/\<vendor\>/\<platform\>/port_peripheral_config.j2 for each platform with gearbox installed.
- DEFAULT_LOSSLESS_BUFFER_PARAMETER and LOSSLESS_TRAFFIC_PATTERN in files/build_templates/buffers_config.j2
- Add lossless PGs (3-4) for each port in files/build_templates/buffers_config.j2
3. Copy the newly introduced j2 files into the image and rendering them when the system starts
4. Update the CLI options for buffermgrd so that it can start with dynamic mode
5. Fetches the ASIC vendor name in orchagent:
- fetch the vendor name when creates the docker and pass it as a docker environment variable
- `buffermgrd` can use this passed-in variable
6. Clear buffer related tables from STATE_DB when swss docker starts
7. Update the src/sonic-config-engine/tests/sample_output/buffers-dell6100.json according to the buffer_config.j2
8. Remove buffer pool sizes for ingress pools and egress_lossy_pool
Update the buffer settings for dynamic buffer calculation
**- Why I did it**
We were building a custom version of Supervisor because I had added patches to prevent hangs and crashes if the system clock ever rolled backward. Those changes were merged into the upstream Supervisor repo as of version 3.4.0 (http://supervisord.org/changes.html#id9), therefore, we should be able to simply install the vanilla package via pip. This will also allow us to easily move to Python 3, as Python 3 support was added in version 4.0.0.
**- How I did it**
- Remove Makefiles and patches for building supervisor package from source
- Install Python 3 supervisor package version 4.2.1 in Buster base container
- Also install Python 3 version of supervisord-dependent-startup in Buster base container
- Debian package installed binary in `/usr/bin/`, but pip package installs in `/usr/local/bin/`, so rather than update all absolute paths, I changed all references to simply call `supervisord` and let the system PATH find the executable to prevent future need for changes just in case we ever need to switch back to build a Debian package, then we won't need to modify these again.
- Install Python 2 supervisor package >= 3.4.0 in Stretch and Jessie base containers
* buildimage: Add gearbox phy device files and a new physyncd docker to support VS gearbox phy feature
* scripts and configuration needed to support a second syncd docker (physyncd)
* physyncd supports gearbox device and phy SAI APIs and runs multiple instances of syncd, one per phy in the device
* support for VS target (sonic-sairedis vslib has been extended to support a virtual BCM81724 gearbox PHY).
HLD is located at b817a12fd8/doc/gearbox/gearbox_mgr_design.md
**- Why I did it**
This work is part of the gearbox phy joint effort between Microsoft and Broadcom, and is based
on multi-switch support in sonic-sairedis.
**- How I did it**
Overall feature was implemented across several projects. The collective pull requests (some in late stages of review at this point):
https://github.com/Azure/sonic-utilities/pull/931 - CLI (merged)
https://github.com/Azure/sonic-swss-common/pull/347 - Minor changes (merged)
https://github.com/Azure/sonic-swss/pull/1321 - gearsyncd, config parsers, changes to orchargent to create gearbox phy on supported systems
https://github.com/Azure/sonic-sairedis/pull/624 - physyncd, virtual BCM81724 gearbox phy added to vslib
**- How to verify it**
In a vslib build:
root@sonic:/home/admin# show gearbox interfaces status
PHY Id Interface MAC Lanes MAC Lane Speed PHY Lanes PHY Lane Speed Line Lanes Line Lane Speed Oper Admin
-------- ----------- --------------- ---------------- --------------- ---------------- ------------ ----------------- ------ -------
1 Ethernet48 121,122,123,124 25G 200,201,202,203 25G 204,205 50G down down
1 Ethernet49 125,126,127,128 25G 206,207,208,209 25G 210,211 50G down down
1 Ethernet50 69,70,71,72 25G 212,213,214,215 25G 216 100G down down
In addition, docker ps | grep phy should show a physyncd docker running.
Signed-off-by: syd.logan@broadcom.com
SWSS config script restore ARP/FDB/Routes. Restore neighbor script
uses config DB ARP information to restore ARP entries and so needs
to be started after swssconfig exits.
signed-off-by: Tamer Ahmed <tamer.ahmed@microsoft.com>
When stopping the swss, pmon or bgp containers, log messages like the following can be seen:
```
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:10,061 ERRO pool dependent-startup event buffer overflowed, discarding event 34
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:10,063 ERRO pool dependent-startup event buffer overflowed, discarding event 35
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:10,064 ERRO pool dependent-startup event buffer overflowed, discarding event 36
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:10,066 ERRO pool dependent-startup event buffer overflowed, discarding event 37
```
This is due to the number of programs in the container managed by supervisor, all generating events at the same time. The default event queue buffer size in supervisor is 10. This patch increases that value in all containers in order to eliminate these errors. As more programs are added to the containers, we may need to further adjust these values. I increased all buffer sizes to 25 except for containers with more programs or templated supervisor.conf files which allow for a variable number of programs. In these cases I increased the buffer size to 50. One final exception is the swss container, where the buffer fills up to ~50, so I increased this buffer to 100.
Resolves https://github.com/Azure/sonic-buildimage/issues/5241
when portsyncd starts, it first enumerates all front panel ports
and marks them as old interfaces. Then, for new front panel ports
it checks if their indexes exist in previous sets. If yes, it will
treats them as old interfaces and ignore them.
The reason we have this check is because broadcom SAI only removes
front panel ports after sai switch init.
So, if portsyncd starts after orchagent, new interfaces could be
created before portsyncd and treated as old interface.
Signed-off-by: Guohan Lu <lguohan@gmail.com>
* [service] Restart SwSS Docker container if orchagent exits unexpectedly
* Configure systemd to stop restarting swss if it attempts to restart more than 3 times in 20 minutes
* Move supervisor-proc-exit-listener script
* [docker-dhcp-relay] Enhance wait_for_intf.sh.j2 to utilize STATEDB
* Ensure dependent services stop/start/restart with SwSS
* Change 'StartLimitInterval' to 'StartLimitIntervalSec', as Stretch installs systemd 232 (>= v230)
* Also update journald.conf options
* Remove 'PartOf' option from unit files
* Add '$(SUPERVISOR_PROC_EXIT_LISTENER_SCRIPT)' to new shared docker-orchagent makefile
* Make supervisor-proc-exit-listener script read from 'critical_processes' file inside container
* Update critical_processes file for swss container
* Add bridge-utils to orchagent image
- Add vxlanmgrd to supervisorctl in docker -orchagent
Signed-off-by: Ze Gan zegan@microsoft.com
* Update submodule pointer for swss to include Vxlanmgrd changes
* Restore neighbor table to kernel during system warm-reboot
Added a service: "restore_neighbors" to restore neighbor table into
kernel during system warm reboot. The service is started by supervisord
in swss docker when the docker is started.
In case system warm reboot is enabled, it will try to restore the neighbor
table from appDB into kernel through netlink API calls and update the neighbor
table by sending arp/ns requests to all neighbor entries, then it sets the
stateDB flag for neighsyncd to continue the reconciliation process.
-- Added tcpdump python-scapy debian package into orchagent and vs dockers.
-- Added python module: pyroute2 netifaces into orchagent and vc dockers.
-- Workarounded tcpdump issue in the vs docker
Signed-off-by: Zhenggen Xu <zxu@linkedin.com>
* Move the restore_neighbors.py to sonic-swss submodule
Made changes to makefiles accordingly
Make dockerfile.j2 changes and supervisord config changes
Add python monotonic lib for time access
Signed-off-by: Zhenggen Xu <zxu@linkedin.com>
* Added PYTHON_SWSSCOMMON as swss runtime dependency
Signed-off-by: Zhenggen Xu <zxu@linkedin.com>
The default startsecs is 1 second. However, swssconfig.sh will quickly
exit with expected exit code 0 during warm starting. This case should
not be treated as a failure
* [docker-orchagent]: Add vrfmgrd to supervisorctl
Signed-off-by: Marian Pritsak <marianp@mellanox.com>
* [sonic-vs]: Add vrfmgrd to supervisorctl
Signed-off-by: Marian Pritsak <marianp@mellanox.com>
- Move front panel ports and port channels MTU and IP configurations out of
the current /etc/network/interfaces file and store them in the configuration
database.
- The default MTU value for both front panel ports and the port channels is
9100. They are set via the minigraph or 9100 by default.
- Introduce portmgrd which will pick up the MTU configurations from the
configuration database.
- The updated intfmgrd will pick up IP address changes from the configuration
database.
- Update sonic-swss submodule
Signed-off-by: Shu0T1an ChenG <shuche@microsoft.com>
* Add support for vlanconfd and intfconfd
Signed-off-by: Jipan Yang <jipan.yang@alibaba-inc.com>
* Change name to vlanmgrd and intfmgrd
Signed-off-by: Jipan Yang <jipan.yang@alibaba-inc.com>
* Add missing vlan_members for parse_dpg result
Signed-off-by: Jipan Yang <jipan.yang@alibaba-inc.com>
* Remove cfgmgr debug CLI from image
Signed-off-by: Jipan Yang <jipan.yang@alibaba-inc.com>
* Update swss and swss-common submodules for VLAN trunk support
Signed-off-by: Jipan Yang <jipan.yang@alibaba-inc.com>
* Make supervisor controlled one-shot program autorestart 0 time, so the status will become FATAL instead of EXITED if failure happens
Signed-off-by: Qi Luo <qiluo-msft@users.noreply.github.com>
* Make swssconfig.sh strictly exit on any failure
Signed-off-by: Qi Luo <qiluo-msft@users.noreply.github.com>
* Tune startretries, tested in supervisor 3.3.2-1
Signed-off-by: Qi Luo <qiluo-msft@users.noreply.github.com>
- arp_update return code is not guaranteed to be true/false.
When there is no VLAN, arp_update will return true.
When there are VLANs, arp_update will return false because the
command arping returns 1 due to the option '-w 0'.
- This script should be run every 5 minutes regardless of the return
code.
- Consolidate config.sh and start.sh scripts into one script (start.sh)
- Solve issue #435 - All dockers now run supervisord as their ENTRYPOINT
- All stdout/stderr output from processes managed by supervisord is now sent to syslog instead of their own files
- Supervisord log messages are now also sent to syslog
- Removed unused smartmontools package from docker-platform-monitor
