Commit Graph

308 Commits

Author SHA1 Message Date
Joshua Boniface 46d3daf686 Add logger message when setting MTU 2021-10-09 18:56:18 -04:00
Joshua Boniface e9d05aa24e Ensure vx_mtu is always an int() 2021-10-09 18:52:50 -04:00
Joshua Boniface 6ce28c43af Add MTU value checking and log messages
Ensures that if a specified MTU is more than the maximum it is set to
the maximum instead, and adds warning messages for both situations.
2021-10-09 18:48:56 -04:00
Joshua Boniface c45f8f5bd5 Have VXNetworkInstance set MTU if unset
Makes this explicit in Zookeeper if a network is unset, post-migration
(schema version 6).

Addresses #144
2021-10-09 17:52:57 -04:00
Joshua Boniface 3690a2c1e0 Fix migration bugs and invalid vx_mtu
Addresses #144
2021-10-09 17:35:10 -04:00
Joshua Boniface 50d8aa0586 Add handlers for client network MTUs
Refactors some of the code in VXNetworkInterface to handle MTUs in a
more streamlined fashion. Also fixes a bug whereby bridge client
networks were being explicitly given the cluster dev MTU which might not
be correct. Now adds support for this option explicitly in the configs,
and defaults to 1500 for safety (the standard Ethernet MTU).

Addresses #144
2021-10-09 17:02:27 -04:00
Joshua Boniface 6ee4c55071 Correct flawed conditional in verify_ipmi 2021-10-07 15:11:19 -04:00
Joshua Boniface c27359c4bf Bump version to 0.9.40 2021-10-07 14:42:04 -04:00
Joshua Boniface 46078932c3 Correct bad stop_keepalive_timer call 2021-10-07 14:41:12 -04:00
Joshua Boniface bdb9db8375 Bump version to 0.9.39 2021-10-07 11:52:38 -04:00
Joshua Boniface da9248cfa2 Bump version to 0.9.38 2021-10-03 22:32:41 -04:00
Joshua Boniface 23977b04fc Bump version to 0.9.37 2021-09-30 02:08:14 -04:00
Joshua Boniface f6f6f07488 Add timeouts to queue gets and adjust
Ensure that all keepalive timeouts are set (prevent the queue.get()
actions from blocking forever) and set the thread timeouts to line up as
well. Everything here is thus limited to keepalive_interval seconds
(default 5s) to keep it uniform.
2021-09-27 16:10:27 -04:00
Joshua Boniface 142c999ce8 Re-add success log output during migration 2021-09-27 11:50:55 -04:00
Joshua Boniface 1de069298c Fix missing character in log message 2021-09-27 00:49:43 -04:00
Joshua Boniface 55221b3d97 Simplify VM migration down to 3 steps
Remove two superfluous synchronization steps which are not needed here,
since the exclusive lock handles that situation anyways.

Still does not fix the weird flush->unflush lock timeout bug, but is
better worked-around now due to the cancelling of the other wait freeing
this up and continuing.
2021-09-27 00:03:20 -04:00
Joshua Boniface 0d72798814 Work around synchronization lock issues
Make the block on stage C only wait for 900 seconds (15 minutes) to
prevent indefinite blocking.

The issue comes if a VM is being received, and the current unflush is
cancelled for a flush. When this happens, this lock acquisition seems to
block for no obvious reason, and no other changes seem to affect it.
This is certainly some sort of locking bug within Kazoo but I can't
diagnose it as-is. Leave a TODO to look into this again in the future.
2021-09-26 23:26:21 -04:00
Joshua Boniface 3638efc77e Improve log messages during VM migration 2021-09-26 23:15:38 -04:00
Joshua Boniface c2c888d684 Use event to non-block wait and fix inf wait 2021-09-26 22:55:39 -04:00
Joshua Boniface febef2e406 Track status of VM state thread 2021-09-26 22:55:21 -04:00
Joshua Boniface 2a4f38e933 Simplify locking process for VM migration
Rather than using a cumbersome and overly complex ping-pong of read and
write locks, instead move to a much simpler process using exclusive
locks.

Describing the process in ASCII or narrative is cumbersome, but the
process ping-pongs via a set of exclusive locks and wait timers, so that
the two sides are able to synchronize via blocking the exclusive lock.
The end result is a much more streamlined migration (takes about half
the time all things considered) which should be less error-prone.
2021-09-26 22:08:07 -04:00
Joshua Boniface 3b805cdc34 Fix failure to connect to libvirt in keepalive
This should be caught and abort the thread rather than failing and
holding up keepalives.
2021-09-26 20:42:01 -04:00
Joshua Boniface 06f0f7ed91 Fix several bugs in fence handling
1. Output from ipmitool was not being stripped, and stray newlines were
throwing off the comparisons. Fixes this.

2. Several stages were lacking meaningful messages. Adds these in so the
output is more clear about what is going on.

3. Reduce the sleep time after a fence to just 1x the
keepalive_interval, rather than 2x, because this seemed like excessively
long even for slow IPMI interfaces, especially since we're checking the
power state now anyways.

4. Set the node daemon state to an explicit 'fenced' state after a
successful fence to indicate to users that the node was indeed fenced
successfully and not still 'dead'.
2021-09-26 20:07:30 -04:00
Joshua Boniface e23e2dd9bf Fix typo in log message 2021-09-26 03:35:30 -04:00
Joshua Boniface 0f02c5eaef Fix typo in sgdisk command options 2021-09-26 00:59:05 -04:00
Joshua Boniface 075abec5fe Use re.search instead of re.match
Required since we're not matching the start of the string.
2021-09-26 00:55:29 -04:00
Joshua Boniface 3a1cbf8d01 Raise basic exceptions in CephInstance
Avoids no exception to reraise errors on failures.
2021-09-26 00:50:10 -04:00
Joshua Boniface a438a4155a Fix OSD creation for partition paths and fix gdisk
The previous implementation did not work with /dev/nvme devices or any
/dev/disk/by-* devices due to some logical failures in the partition
naming scheme, so fix these, and be explicit about what is supported in
the PVC CLI command output.

The 'echo | gdisk' implementation of partition creation also did not
work due to limitations of subprocess.run; instead, use sgdisk which
allows these commands to be written out explicitly and is included in
the same package as gdisk.
2021-09-26 00:12:28 -04:00
Joshua Boniface 65df807b09 Add support for configurable OSD DB ratios
The default of 0.05 (5%) is likely ideal in the initial implementation,
but allow this to be set explicitly for maximum flexibility in
space-constrained or performance-critical use-cases.
2021-09-24 01:06:39 -04:00
Joshua Boniface d0f3e9e285 Bump version to 0.9.36 2021-09-23 14:01:38 -04:00
Joshua Boniface adc8a5a3bc Add separate OSD DB device support
Adds in three parts:

1. Create an API endpoint to create OSD DB volume groups on a device.
Passed through to the node via the same command pipeline as
creating/removing OSDs, and creates a volume group with a fixed name
(osd-db).

2. Adds API support for specifying whether or not to use this DB volume
group when creating a new OSD via the "ext_db" flag. Naming and sizing
is fixed for simplicity and based on Ceph recommendations (5% of OSD
size). The Zookeeper schema tracks the block device to use during
removal.

3. Adds CLI support for the new and modified API endpoints, as well as
displaying the block device and DB block device in the OSD list.

While I debated supporting adding a DB device to an existing OSD, in
practice this ended up being a very complex operation involving stopping
the OSD and setting some options, so this is not supported; this can be
specified during OSD creation only.

Closes #142
2021-09-23 13:59:49 -04:00
Joshua Boniface df277edf1c Move console watcher stop try up
Could cause an exception if d_domain is not defined yet.
2021-09-22 16:02:04 -04:00
Joshua Boniface 772807deb3 Bump version to 0.9.35 2021-09-13 02:20:46 -04:00
Joshua Boniface f3fb492633 Handle VM disk/network stats gathering exceptions 2021-09-12 19:41:07 -04:00
Joshua Boniface e962743e51 Add VM device hot attach/detach support
Adds a new API endpoint to support hot attach/detach of devices, and the
corresponding client-side logic to use this endpoint when doing VM
network/storage add/remove actions.

The live attach is now the default behaviour for these types of
additions and removals, and can be disabled if needed.

Closes #141
2021-09-12 19:33:00 -04:00
Joshua Boniface be954c1625 Don't crash cleanup if no this_node 2021-08-29 03:52:18 -04:00
Joshua Boniface fb46f5f9e9 Change default node object state to flushed 2021-08-29 03:34:08 -04:00
Joshua Boniface 694b8e85a0 Bump version to 0.9.34 2021-08-24 16:15:25 -04:00
Joshua Boniface a4c0e0befd Fix typo in output message 2021-08-23 00:39:19 -04:00
Joshua Boniface a18cef5f25 Bump version to 0.9.33 2021-08-21 03:28:48 -04:00
Joshua Boniface afb0359c20 Refactor pvcnoded to reduce Daemon.py size
This branch commit refactors the pvcnoded component to better adhere to
good programming practices. The previous Daemon.py was a massive file
which contained almost 2000 lines of direct, root-level code which was
directly imported. Not only was this poor practice, but this resulted
in a nigh-unmaintainable file which was hard even for me to understand.

This refactoring splits a large section of the code from Daemon.py into
separate small modules and functions in the `util/` directory. This will
hopefully make most of the functionality easy to find and modify without
having to dig through a single large file.

Further the existing subcomponents have been moved to the `objects/`
directory which clearly separates them.

Finally, the Daemon.py code has mostly been moved into a function,
`entrypoint()`, which is then called from the `pvcnoded.py` stub.

An additional item is that most format strings have been replaced by
f-strings to make use of the Python 3.6 features in Daemon.py and the
utility files.
2021-08-21 03:14:22 -04:00
Joshua Boniface afdf254297 Bump version to 0.9.32 2021-08-19 12:37:58 -04:00
Joshua Boniface 42e776fac1 Properly handle exceptions getting VM stats 2021-08-19 12:36:31 -04:00
Joshua Boniface 7ecc6a2635 Bump version to 0.9.31 2021-07-30 12:08:12 -04:00
Joshua Boniface 3ab6365a53 Adjust receive output to show proper source 2021-07-22 15:43:08 -04:00
Joshua Boniface 2a99a27feb Bump version to 0.9.30 2021-07-20 00:01:45 -04:00
Joshua Boniface fa1d93e933 Bump version to 0.9.29 2021-07-19 16:55:41 -04:00
Joshua Boniface 6ead21a308 Handle cleanup from a failure properly 2021-07-19 12:39:13 -04:00
Joshua Boniface b7c8c2ee3d Fix handling of this_node and d_domain in cleanup 2021-07-19 12:36:35 -04:00
Joshua Boniface d48f58930b Use harder exits and add cleanup termination 2021-07-19 12:27:16 -04:00