* Created DRBD->check_if_syncsource() and ->check_if_synctarget() that return '1' if the target host is currently SyncSource or SyncTarget for any resource, respectively.
* Updated DRBD->update_global_common() to return the unified-format diff if any changes were made to global-common.conf.
* Created ScanCore->check_health() that returns the health score for a host. Created ->count_servers() that returns the number of servers on a host, how much RAM is used by those servers and, if available, the estimated migration time of the servers. Updated ->check_temperature() to set/clear/return the time that a host has been in a warning or critical temperature state.
* Finished ScanCore->post_scan_analysis_node()!!! It certainly has bugs, and much testing is needed, but the logic is all in place! Oh what a slog that was... It should be far more intelligent than M2 though, once flushed out and tested.
* Created Server->active_migrations() that returns '1' if any servers are in a migration on an Anvil! system. Updated ->migrate_virsh() to record how long a migration took in the "server::migration_duration" variable, which is averaged by ScanCore->count_servers() to estimate migration times.
* Updated scan-drbd to check/update the global-common.conf file's config at the end of a scan.
* Updated ScanCore itself to not scan when in maintenance mode. Also updated it to call 'anvil-safe-start' when ScanCore starts, so long as it is within ten minutes of the host booting.
Signed-off-by: Digimer <digimer@alteeve.ca>
* Fixed a bug in scan-drbd where the volume_uuid wasn't being stored in the proper hash, breaking insertions into scan_drbd_peers in some cases.
* Updated System->pids() to work with remote targets (will be used later to check for parallel runs of anvil-safe-start).
Signed-off-by: Digimer <digimer@alteeve.ca>
* Fixed a bug in ScanCore->agent_startup() where a (thankfully broken) check to append tables to the 'sys::database::check_tables' would cause an infinite loop as both were pointers to the same anonymous array.
* Fixed a bug in scan-ipmitool where the scan_ipmitool_variables table didn't use a host_uuid reference, causing resyncs of that table to sync for all hosts and cause DB errors when the scan_ipmitool record from another host wasn't sync'ed yet.
Signed-off-by: Digimer <digimer@alteeve.ca>
* Updated Database->_find_behind_databases() to not trigger a resync if the only difference in a table is the last-updated time and the difference is less than ten seconds. This should dramatically cut back on unnecessary resyncs and reduce load.
Signed-off-by: Digimer <digimer@alteeve.ca>
* Reworked scan-ipimitool so that on nodes and dr hosts, it only scans itself. On strikers, it scans all hosts found in active Anvil! systems with a host_ipmi entry. `
* For all agents, reduced log verbosity to not push too much noise into anvil.log while scancore is running in the background.
Signed-off-by: Digimer <digimer@alteeve.ca>
Note: These changes below shouldn't have been in this branch... *sigh*
* Fixed an issue with tools/anvil-provision-server where a VM would be created but didn't boot. When this happens, an explicit boot is sent via virsh. Also bumped up the time it waits for a new server to start up.
* Added an explicit call to scan-drbd after a new resource is created to ensure that if any calls come after looking for the next free DRBD minor or port, they don't use the ones just used.
Signed-off-by: Digimer <digimer@alteeve.ca>
* Updated Cluster->add_server() to now set failure timeouts to actual numbers instead of INFINITY after discovering that INFINITY doesn't work in those cases.
* Updated Databsae->get_hosts to now check if other entries have the same host name, and if so, to set their host_key to 'DELETED'. This should make it easier to handle when a hardware machine is replaced by new hardware but uses the same host_name.
* Updated Email->check_queue() to start and enable postfix.service if it's found to not be running.
* Updated Get->available_resources() to return '!!no_data!!' when a given host hasn't got any data in scan_lvm_vgs. Now use this in anvil-provision-server to exit if a node or dr host hasn't run scancore yet.
* Fixed a bug in scan-lvm where the pvs_uuid wasn't being loaded properly, preventing lost PVs, VGs and LVs from being flagged as deleted.
* Started work on anvil-migate-server, though it's far from complete.
Signed-off-by: Digimer <digimer@alteeve.ca>
* Finished DRBD->get_next_resource() that returns the next available minor and the next free TCP port (with two free ports available after it).
* Created Storage->get_storage_group_details() that pulls together the LVM, storage group members and storage groups into one block of data.
* Made more progress on tools/anvil-provision-server. It now gets up to the point of creating LVs, creating DRBD resource files, loading them, creating metadata and up'ing the resource. It doesn't yet (successfully) force a new resource to primary.
Signed-off-by: Digimer <digimer@alteeve.ca>
* Fixed a bug in scan-drbd that was still looking for the scan_drbd_resource_uuid from the resource config file. Also added a check to see if 'scan-drbd::resource_status' directory exists before trying to read the files in it.
Signed-off-by: Digimer <digimer@alteeve.ca>
* Started work on Get->available_resources() that will take an 'anvil_uuid' and figure out what resources are still available for use by new servers or that can be added to existing servers.
* Fixed a bug in ScanCore->agent_startup() where tables weren't being generated properly from the agent's SQL file.
* Made Storage->change_mode() return silently if it's called without a mode being passed. This happens frequently and is harmless so it's not worth filling the logs with errors.
* Renamed the 'start_time' key to 'at_start' when recording files' MD5 sums in Storage->record_md5sums and ->check_md5sums.
* When we moved the directory scan logic out of the 'scancore' daemon and into 'Storage->scan_directory', the logic to record scan agent names in 'scancore::agent::<file>' was removed. This broke a few things and, so, it was restored when it was found that a file starts with 'scan-' and the directory matches the scancore agent directory.
* Moved the 'scancore' daemon's 'load_agent_strings' to 'Words'
* Updated Words->parse_banged_string() to look for variables in the format 'value=X:units=Y' and translate it properly.
* Fixed a bug in scan-ipmitool where discovered sensor INSERT SQL queries were queued, but not committed.
* Fixed a bug in scan-storcli where a while loop was broken, preventing execution.
* Fixed a bug in the 'scancore' daemon where it wouldn't exit if sums changed. Fixed a bug where alerts weren't being sent between loops. Fixed a bug where command-line log level wasn't surviving inside the main loop.
Signed-off-by: Digimer <digimer@alteeve.ca>
* Fixed a bug in Database->check_agent_data() where the list of tables wasn't passed in, and thus the table list wasn't then passed on to Database->_find_behind_databases().
* Started work on a new method called Storage->parse_lsblk().
Signed-off-by: Digimer <digimer@alteeve.ca>
Digimer