Add the same mechanism I developed for the SwSS service in #2845 to the syncd service. However, in order to cause the SwSS service to also exit and restart in this situation, I developed a docker-wait-any program which the SwSS service uses to wait for either the swss or syncd containers to exit.
* In the event of a kernel crash, we need to gather as much information
as possible to understand and identify the root cause of the crash.
Currently, the kernel does not provide much information, which make
kernel crash investigation difficult and time consuming.
Fortunately, there is a way in the kernel to provide more information
in the case of a kernel crash. kdump is a feature of the Linux kernel
that creates crash dumps in the event of a kernel crash. This PR
will add kermel kdump support.
An extension to the CLI utilities config and show is provided to
configure and manage kdump:
- enable / disable kdump functionality
- configure kdump (how many kernel crash logs can be saved, memory
allocated for capture kernel)
- view kernel crash logs
* Rename asn/deployment_id_asn_map.yaml to constants/constants.yaml
* Fix bgp templates
* Add community for loopback when bgpd is isolated
* Use correct community value
While doing CLI changes for SNMP configuration, few changes are made in backend to handle the modified CLI.
** Changes**
- "community" for "snmp trap" is also made as "configurable". snmpd_conf.j2 is modified to handle the same.
- Changed the snmp.yml file generation from postStartAction to preStartAction in docker_image_ctl.j2 specific to SNMP docker, to ensure that the snmp.yml is generated before sonic-cfggen generates the snmpd.conf.
- Changed to make the code common for management vrf and default vrf. Users can configure snmp trap and snmp listening IP for both management vrf and default vrf.
Issue Overview
shutdown flow
For any shutdown flow, which means all dockers are stopped in order, pmon docker stops after syncd docker has stopped, causing pmon docker fail to release sx_core resources and leaving sx_core in a bad state. The related logs are like the following:
INFO syncd.sh[23597]: modprobe: FATAL: Module sx_core is in use.
INFO syncd.sh[23597]: Unloading sx_core[FAILED]
INFO syncd.sh[23597]: rmmod: ERROR: Module sx_core is in use
config reload & service swss.restart
In the flows like "config reload" and "service swss restart", the failure cause further consequences:
sx_core initialization error with error message like "sx_core: create EMAD sdq 0 failed. err: -16"
syncd fails to execute the create switch api with error message "syncd_main: Runtime error: :- processEvent: failed to execute api: create, key: SAI_OBJECT_TYPE_SWITCH:oid:0x21000000000000, status: SAI_STATUS_FAILURE"
swss fails to call SAI API "SAI_SWITCH_ATTR_INIT_SWITCH", which causes orchagent to restart. This will introduce an extra 1 or 2 minutes for the system to be available, failing related test cases.
reboot, warm-reboot & fast-reboot
In the reboot flows including "reboot", "fast-reboot" and "warm-reboot" this failure doesn't have further negative effects since the system has already rebooted. In addition, "warm-reboot" requires the system to be shutdown as soon as possible to meet the GR time restriction of both BGP and LACP. "fast-reboot" also requires to meet the GR time restriction of BGP which is longer than LACP. In this sense, any unnecessary steps should be avoided. It's better to keep those flows untouched.
summary
To summarize, we have to come up with a way to ensure:
shutdown pmon docker ahead of syncd for "config reload" or "service swss restart" flow;
don't shutdown pmon docker ahead of syncd for "fast-reboot" or "warm-reboot" flow in order to save time.
for "reboot" flow, either order is acceptable.
Solution
To solve the issue, pmon shoud be stopped ahead of syncd stopped for all flows except for the warm-reboot.
- How I did it
To stop pmon ahead of syncd stopped. This is done in /usr/local/bin/syncd.sh::stop() and for all shutdown sequence.
Now pmon stops ahead of syncd so there must be a way in which pmon can start after syncd started. Another point that should be taken consideration is that pmon starting should be deferred so that services which have the logic of graceful restart in fast-reboot and warm-reboot have sufficient CPU cycles to meet their deadline.
This is done by add "syncd.service" as "After" to pmon.service and startin /usr/local/bin/syncd.sh::wait()
To start pmon automatically after syncd started.
slave.mk: add SONIC_PLATFORM_API_PY2 as dependency of host
sonic_debian_extension.j2: install sonic_daemon_base and Mellanox-specific sonic_platform on host
mlnx-platform-api.mk: export mlnx_platform_api_py2_wheel_path for sonic_debian_extension.j2
sonic-daemon-base.mk: export daemon_base_py2_wheel_path for sonic_debian_extension.j2
daemon_base.py: hind unnecessary dependency of swss_common on host
* [SNMP] management VRF SNMP support
This commit adds SNMP support for Management VRF using l3mdev.
The patch included provides VRF support, there is no single
"listendevice" configuration, rather multiple agentaddress
config options can each have their own "interface" to bind to
using "ip%interface". The snmpd.conf file is accordingly
generated using the snmp.yml file and redis database info.
Adding below the comments of SNMP patch 1376
--------------------------------------------
Since the Linux kernel added support for Virtual Routing
and Forwarding (VRF) in version 4.3
(Note: these won't compile on non-linux platforms)
https://www.kernel.org/doc/Documentation/networking/vrf.txt
Linux users could not use snmpd in its current form to
bind specific listening IP addresses to specific VRF
devices. A simplified description of a VRF inteface
is an interface that is a master (a container of sorts)
that collects a set of physicalinterfaces to form a
routing table.
This set of two patches (one for V5-7-patches and one
for V5-8-patches branches) is almost identical to patch
single "listendevice" configuration. Rather, multiple
agentAddress config options can each have their own
"interface" to bind to using the <ip>%<interface>
syntax.</interface></ip>
-------------------------------------------
Signed-off-by: Harish Venkatraman <harish_venkatraman@dell.com>
Introduce a new "sflow" container (if ENABLE_SFLOW is set). The new docker will include:
hsflowd : host-sflow based daemon is the sFlow agent
psample : Built from libpsample repository. Useful in debugging sampled packets/groups.
sflowtool : Locally dump sflow samples (e.g. with a in-unit collector)
In case of SONiC-VS, enable psample & act_sample kernel modules.
VS' syncd needs iproute2=4.20.0-2~bpo9+1 & libcap2-bin=1:2.25-1 to support tc-sample
tc-syncd is provided as a convenience tool for debugging (e.g. tc-syncd filter show ...)
* Use dot1p to tc mapping for backend switches
Signed-off-by: Wenda Ni <wenni@microsoft.com>
* Do not write DSCP to TC mapping into CONFIG_DB or config_db.json for
storage switches
Signed-off-by: Wenda Ni <wenni@microsoft.com>
* Use dot1p to tc mapping for backend switches
Signed-off-by: Wenda Ni <wenni@microsoft.com>
* Do not write DSCP to TC mapping into CONFIG_DB or config_db.json for
storage switches
Signed-off-by: Wenda Ni <wenni@microsoft.com>
this is the first step to moving different databases tables into different database instances
in this PR, only handle multiple database instances creation based on user configuration at /etc/sonic/database_config.json
we keep current method to create single database instance if no extra/new DATABASE configuration exist in database_config.json file.
if user try to configure more db instances at database_config.json , we create those new db instances along with the original db instance existing today.
The configuration is as below, later we can add more db related information if needed:
{
...
"DATABASE": {
"redis-db-01" : {
"port" : "6380",
"database": ["APPL_DB", "STATE_DB"]
},
"redis-db-02" : {
"port" : "6381",
"database":["ASIC_DB"]
},
}
...
}
The detail description is at design doc at Azure/SONiC#271
The main idea is : when database.sh started, we check the configuration and generate corresponding scripts.
rc.local service handle old_config copy when loading new images, there is no dependency between rc.local and database service today, for safety and make sure the copy operation are done before database try to read it, we make database service run after rc.local
Then database docker started, we check the configuration and generate corresponding scripts/.conf in database docker as well.
based on those conf, we create databases instances as required.
at last, we ping_pong check database are up and continue
Signed-off-by: Dong Zhang d.zhang@alibaba-inc.com
radv should be left alone during warm restart of swss. Otherwise it will
announce departure and cause hosts to lose default gateway.
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
* [service dependent] describe non-warm-reboot dependency outside systemctl
When dependency was described with systemctl, it will kick in all the time,
including under warm reboot/restart scenarios. This is not what we always
want. For components that are capable of warm reboot/start, they need to
describe dependency in service files.
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
* [service] teamd service should not require swss service
Adding require swss will cause teamd to be killed by systemctl when swss
stops. This is not what we want in warm reboot.
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
* refactoring code
* rename functions to match other functions in the file
- What I did
Move the enabling of Systemd services from sonic_debian_extension to a new systemd generator
- How I did it
Create a new systemd generator to manually create symlinks to enable systemd services
Add rules/Makefile to build generator
Add services to be enabled to /etc/sonic/generated_services.conf to be read by the generator at boot time
Signed-off-by: Lawrence Lee <t-lale@microsoft.com>
ARM Architecture support in SONIC
make configure platform=[ASIC_VENDOR_ARCH] PLATFORM_ARCH=[ARM_ARCH]
SONIC_ARCH: default amd64
armhf - arm32bit
arm64 - arm64bit
Signed-off-by: Antony Rheneus <arheneus@marvell.com>
* Upgrade ifupdown2 to version 1.2.8
Required by ZTP to support ZTP over IPv6 transport
Signed-off-by: Rajendra Dendukuri <rajendra.dendukuri@broadcom.com>
- Make sure that migrated DB contents persisted for next boot
- Make sure that db saved after warm reboot.
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
* Added debug symbols to many debug dockers.
* For debug images *only*:
1) Archive source files into debug image
2) Archived source is copied into /src
3) Created an empty dir /debug
4) Mount both /src as ro & /debug as rw into every docker
5) Login banner will give some details on /src & /debug
6) Devs can copy core file into /debug and view it from inside a container.
7) Dev may create all gdb logs and other data directly into /debug.
* Dropped redundant REDIS_TOOLS per review comments.
* Added debug symbols to frr package and hence FRR based BGP docker.
* 1) Moved dbg_files.sh to scripts/
2) Src directories to archive are now collected from individual Makefiles.
3) Added few more debug symbols
4) Added few more debug dockers.
Here after no more changes except per review comments.
To debug:
Install required version of debug image in Switch or VM.
Copy core file into /debug of host
Get into Docker
gdb /usr/bin/<daemon> -c /debug/<your core file>
set directory /src/... <-- inside gdb to get the source
For non-in-depth debugging:
Download corresponding debug Docker image (docker-...-dbg.gz) to your VM
Load the image
Run image with entrypoint as 'bash' with dir containing core mapped in.
Run gdb on the core.
* fix fast reboot compatibility
We should handle both cases for backward-compatible with 201803:
- fast-reboot
- SONIC_BOOT_TYPE=fast-reboot
* handle review comments
* add a comment that getBootType code snippet is shared between two files
* [submodule] update sonic-linux-kernel
* update linux kernel version
* Fix many version strings
* update mellanox components (built with new kernel)
* [mlnx] add make files for SDK WJH libs
* Update arista driver submodule (#8)
Make the debian packaging point to a newer kernel version.
* Updated Makefile infrastructure to build debug images.
As a sample, platform/broadcom/docker-orchagent-brcm.mk is updated to add a docker-orchagent-brcm-dbg.gz target.
Now "BLDENV=stretch make target/docker-orchagent-brcm-dbg.gz" will build the debug image.
NOTE: If you don't specify NOSTRETcH=1, it implicitly calls "make stretch", which builds all stretch targets and that would include debug dockers too.
This debug image can be used in any linux box to inspect core file. If your module's external dependency can be suitably mocked, you my even manually run it inside.
"docker run -it --entrypoint=/bin/bash e47a8fb8ed38"
You may map the core file path to this docker run.
* Dropped the regular binary using DBG_PACKAGES and a small name change to help readability.
* Tweaked the changes to retain the existing behavior w.r.t INSTALL_DEBUG_TOOLS=y.
When this change ('building debug docker image transparently') is extended to all dockers, this flag would become redundant. Yet, there can be some test based use cases that rely on this flag.
Until after all the dockers gets their debug images by default and we switch all use cases of this flag to use the newly built debug images, we need to maintain the existing behavior.
* 1) slave.mk - Dropped unused Docker build args
2) Debug template builder: renamed build_dbg_j2.sh to build_debug_docker_j2.sh
3) Dropped insignifcant statement CMD from debug Docker file, as base docker has Entrypoint.
* Reverted some changes, per review comments.
"User, uid, guid, frr-uid & frr-guid" are required for all docker images, with exception of debug images.
* Get in sync with the new update that filters out dockers to be built (SONIC_STRETCH_DOCKERS_FOR_INSTALLERS) and build debug-dockers only for those to be built and debug target is available.
* Mkae a template for each target that can be shared by all platforms.
Where needed a platform entry can override the template.
This avoids duplication, hence easier to maintain.
* A small change, that can fit better with other targets too.
Just take the platform code and do the rest in template.
* Extended debug to all stretch based docker images
* 1) Combined all orchagent makefiles into one platform independent make under rules/docker-orchagent.mk
2) Extened debug image to all stretch dockers
* Changes per review comments:
1) Dropped LIBSAIREDIS_DBG from database, teamd, router-advertiser, telemetry, and platform-monitor docker*.mk files from _DBG_DEPENDS list
2) W.r.t docker make for syncd, moved DEPENDS from template to specific makefile and let the template has stuff that is applicable to all.
* 1) Corrected a copy/paste mistake
* Fixed a copy/paste bug
* The base syncd dockers follow a template, which defines the base docker as DOCKER_SYNCD_BASE instead of DOCKER_SYNCD_<platform code>. Fix the docker-syncd-<mlnx, bfn>.mk to use the new one.
[Yet to be tested locally]
* Fixed spelling mistake
* Enable build of dbg-sonic-broadcom.bin, which uses dbg-dockers in place of regular dockers, for dockers that build debug version. For dockers that do not build debug version, it uses the regular docker.
This debug bin is installable and usable in a DUT, just like a regular bin.
* Per review comments:
1) Share a single rule for final image for normal & debug flavors (e.g. sonic-broadcom.bin & sonic-broadcom-dbg.bin)
2) Put dbg as suffix in final image name.
3) Compared target/sonic-broadcom.bin.logs with & w/o fix to verify integrity of sonic-broadcom.bin
4) Compared target/sonic-broadcom.bin.logs with sonic-broadcom-dbg.bin.log for verification
This fix takes care of ONIE image only. The next PR will cover the rest.
The next PR, will also make debug image conditional with flag.
* Updated per comments.
Now that debug dockers are available, do not need a way to install debug symbols in regular dockers.
With this commit, when INSTALL_DEBUG_TOOLS=y is set, it builds debug dockers (for dockers that enable debug build) and the final image uses debug dockers. For dockers that do not enable debug build, regular dockers get used in the final image.
Note:
The debug dockers are explicitly named as <docker name>-dbg.gz. But there is no "-dbg" suffix for image.
Hence if you make two runs with and w/o INSTALL_DEBUG_TOOLS=y, you have complete set of regular dockers + debug dockers. But the image gets overwritten.
Hence if both regular & debug images are needed, make two runs, as one with INSTALL_DEBUG_TOOLS=y and one w/o. Make sure to copy/rename the final image, before making the second run.
- use superviord to manage process in frr docker
- intro separated configuration mode for frr
- bring quagga configuration template to frr.
Signed-off-by: Guohan Lu <gulv@microsoft.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
SWSS clears DB tables, if teamd is not started after swss, there is a
race condition that swss might clear vital teamd information.
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
