Infrastructure alerts

The infrastructure alerts that are generated and displayed in the admin panel can be related to the management node and admin panel, license and updates, cluster connectivity, as well as to a specific node, its disks, and network interfaces.

Management node and admin panel alerts

High availability for the admin panel must be configured

Configure high availability for the admin panel in Settings > System settings > High availability configuration. Otherwise the admin panel will be a single point of failure.

Management node backup does not exist

Management node backup is older than <number> days.

Management node backup does not exist

The last management node backup has failed, does not exist, or is too old.

Changes to the management database are not replicated

Changes to the management database are not replicated to the node "<hostname>" because it is offline. Check the node's state and connectivity.

Changes to the management database are not replicated

Changes to the management database are not replicated to the node "<hostname>". Please contact the technical support.

Management node HA has four nodes

The management node HA configuration has four nodes. It is recommended to have three or five nodes included.

Management panel SSL certificate will expire in less than 30 days

The SSL certificate for the admin and self-service panels will expire in <number> days. Renew the certificate, as described in the product documentation, or contact the technical support.

Renew the SSL certificate, as described in Accessing the admin panel via SSL.

Management panel SSL certificate will expire in less than 7 days

The SSL certificate for the admin and self-service panels will expire in <number> days. Renew the certificate, as described in the product documentation, or contact the technical support.

Renew the SSL certificate, as described in Accessing the admin panel via SSL.

Management panel SSL certificate has expired

The SSL certificate for the admin and self-service panels has expired. Renew the certificate, as described in the product documentation, or contact the technical support.

Renew the SSL certificate, as described in Accessing the admin panel via SSL.

License alerts

License is not loaded

License is not loaded.

1. Contact the sales representative to obtain a license key.
2. Register the license key, as described in Managing licenses.

License is not updated

The license cannot be updated automatically and will expire in less than 21 days. Check the cluster connectivity to the license server or contact the technical support.

1. Calculate the licensed storage capacity that you need. To do it, you can use the previous licensed storage size or check the consumed storage capacity on the Monitoring > Dashboard > Logical space chart.
2. Contact the sales representative to prolong your license, with the storage capacity you have defined on step 1.
3. Upgrade your license key, as described in Managing licenses.

License will expire soon

The license has not been updated automatically and will expire in less than 7 days. Check the cluster connectivity to the license server and contact the technical support immediately.

1. Calculate the licensed storage capacity that you need. To do it, you can use the previous licensed storage size or check the consumed storage capacity on the Monitoring > Dashboard > Logical space chart.
2. Contact the sales representative to prolong your license, with the storage capacity you have defined on step 1.
3. Upgrade your license key, as described in Managing licenses.

License expired

The license of cluster "<cluster_name>" has expired. Сontact your reseller to update your license immediately!

1. Calculate the licensed storage capacity that you need. To do it, you can use the previous licensed storage size or check the consumed storage capacity on the Monitoring > Dashboard > Logical space chart.
2. Contact the sales representative to prolong your license, with the storage capacity you have defined on step 1.
3. Upgrade your license key, as described in Managing licenses.

Licensed storage capacity is low

Cluster has reached 80% of licensed storage capacity.

1. Check the licensed and consumed storage capacity on the Monitoring > Dashboard > Logical space chart.
2. Contact the sales representative to add more storage capacity.
3. Register a new license key, as described in Managing licenses.

Licensed storage capacity is critically low

Cluster has reached 90% of licensed storage capacity.

1. Check the licensed and consumed storage capacity on the Monitoring > Dashboard > Logical space chart.
2. Contact the sales representative to add more storage capacity.
3. Register a new license key, as described in Managing licenses.

Cluster is out of licensed space

Сluster "<cluster_name>" has run out of storage space allowed by license. No more data can be written. Please contact your reseller to update your license immediately!

1. Check the licensed and consumed storage capacity on the Monitoring > Dashboard > Logical space chart.
2. Contact the sales representative to add more storage capacity.
3. Register a new license key, as described in Managing licenses.

Update alerts

Software updates exist

Software updates exist for the node <hostname>. Current version: <current_version>. Available version: <available_version>.

Update Virtuozzo Hybrid Infrastructure to a new version, as described in Installing updates.

Software updates exist for the Management panel and compute API

Software updates exist for the Management panel and compute API. Current version: <current_version>. Available version: <available_version>.

Update Virtuozzo Hybrid Infrastructure to a new version, as described in Installing updates.

Update check failed

Update check failed on the node <hostname>.

The connection to the update repository could not be established.

Check access to the update repositories:

1. Open the terminal on the node where the update check has failed.

2. Ensure that the hci-base and hci-updates repositories are enabled and the mirrorlist URL matches the current release. To do this, run:

   # cat /etc/hci-release
   # grep -P "^(mirrorlist|enabled)" /etc/yum.repos.d/hci.repo

3. Disable third-party repositories. Only two repositories must be enabled: hci-base and hci-updates. To check the enabled repositories, run:

   # yum -q repolist enabled

4. Check access to the repositories:

   # yum clean all; yum repoinfo hci-base; yum repoinfo hci-updates

5. Get the mirrorlist content by running:

   # curl -L <mirrorlist_URL>

6. Investigate the log file /var/log/vstorage-ui-agent/updater.log.

Multiple update checks failed

Update checks failed multiple times on the node <hostname>.

The connection to the update repository could not be established for at least 3 days.

Check access to the update repositories:

1. Open the terminal on the node where the update check has failed.

2. Ensure that the hci-base and hci-updates repositories are enabled and the mirrorlist URL matches the current release. To do this, run:

   # cat /etc/hci-release
   # grep -P "^(mirrorlist|enabled)" /etc/yum.repos.d/hci.repo

3. Disable third-party repositories. Only two repositories must be enabled: hci-base and hci-updates. To check the enabled repositories, run:

   # yum -q repolist enabled

4. Check access to the repositories:

   # yum clean all; yum repoinfo hci-base; yum repoinfo hci-updates

5. Get the mirrorlist content by running:

   # curl -L <mirrorlist_URL>

6. Investigate the log file /var/log/vstorage-ui-agent/updater.log.

Update download failed

Update download failed on the node <hostname>.

The reason can be one of the following:

• The update check has failed.
• There is not enough free space on the root file system.
• (Rare) A new version became available during the download, and the version that is currently being downloaded is not available anymore.

To solve the issue:

1. Check access to the update repositories:

   1. Open the terminal on the node where the update check has failed.

   2. Ensure that the hci-base and hci-updates repositories are enabled and the mirrorlist URL matches the current release. To do this, run:

      # cat /etc/hci-release
      # grep -P "^(mirrorlist|enabled)" /etc/yum.repos.d/hci.repo

   3. Disable third-party repositories. Only two repositories must be enabled: hci-base and hci-updates. To check the enabled repositories, run:

      # yum -q repolist enabled

   4. Check access to the repositories:

      # yum clean all; yum repoinfo hci-base; yum repoinfo hci-updates

   5. Get the mirrorlist content by running:

      # curl -L <mirrorlist_URL>

   6. Investigate the log file /var/log/vstorage-ui-agent/updater.log.
2. Ensure that the root file system has more than 1 GB of free space left.
3. Retry the update download.

Node update failed

Software update failed on the node <hostname>.

The reason can be one of the following:

• The node rebooted unexpectedly.
• There are third-party packages, which conflict with the official packages.

Try updating the node again. If the issue persists, contact the technical support team.

Update failed

Update failed for the management panel and compute API.

The reason can be one of the following:

• The management node rebooted unexpectedly.
• Failed to update the compute service.

Try updating the component again. If the issue persists, contact the technical support team.

Cluster update failed

Update failed for the cluster.

Try updating the cluster again. If the issue persists, contact the technical support team.

Entering maintenance for update failed

Entering maintenance failed while updating the node <hostname>.

Contact the technical support team.

Cluster connectivity alerts

Network connectivity failed

Node "<hostname>" has network connectivity problems: unstable connectivity via network "<network_name>" due to the loss of all MTU-sized packets.

Cluster network connectivity problem

All nodes have network connectivity problems: unstable connectivity via network "<network_name>" due to packet loss.

Cluster network connectivity problem

All nodes have network connectivity problems: no connectivity via network "<network_name>".

Node network connectivity problem

Node "<hostname>" has network connectivity problems: no connectivity to node "<hostname>" with interface "<iface>" via interface "<iface>".

Node network unstable connectivity

Node "<hostname>" has network connectivity problems: unstable connectivity to node "<hostname>" with interface "<iface>" via interface "<iface>" due to the loss of all MTU-sized packets.

Node network packet loss

Node "<hostname>" has network connectivity problems: unstable connectivity to node "<hostname>" with interface "<iface>" via interface "<iface>" due to packet loss.

Node network some MTU packet loss

Node "<hostname>" has network connectivity problems: unstable connectivity to node "<hostname>" with interface "<iface>" via interface "<iface>" due to the loss of some MTU-sized packets.

MTU mismatch

Network <network_name> has assigned interfaces with different MTU.

Node alerts

Node is offline

Node “<hostname>” is offline.

Node got offline too many times

Node “<hostname>” got offline too many times for the last hour.

Kernel is outdated

Node “<hostname>” is not running the latest kernel.

OOM killer triggered

OOM killer has been triggered on node “<hostname>”.

Time is not synced

Time on node “<hostname>” differs from time on backend node by more than <value_5<30> seconds.

Node time critically unsynced

Time on node <hostname> is critically unsynced, differing from the time on backend node by more than <value_>30> seconds.

No Internet access

Cluster node <hostname> cannot reach the repository. Make sure that all cluster nodes have Internet access.

Incompatible hardware detected

Incompatible hardware detected on node "<hostname>": <hardware_list>. Using Mellanox and AMD may lead to data loss. Please double check that SR-IOV is properly enabled. Visit https://support.virtuozzo.com/hc/en-us/articles/19764365143953 to learn how to troubleshoot this issue.

Node has high CPU usage

Node <hostname> has CPU usage higher than 90%. The current value is <value>%.

Node has high memory usage

Node <hostname> has memory usage higher than 95%. The current value is <value>%.

Node has high disk I/O usage

Disk /dev/<disk_name> on node <hostname> has I/O usage higher than 85%. The current value is <value>%.

Node has high swap usage

Node <hostname> has swap usage higher than 40%. The current value is <value>%.

Node has critically high swap usage

Node <hostname> has critically high swap usage, exceeding 80%. The current value is <value>%.

Node has high receive packet loss rate

Node <hostname> has <value> receive packet loss rate reported by job <job_name>.

Node has high transmit packet loss rate

Node <hostname> has <value> transmit packet loss rate reported by job <job_name>.

Node has high receive packet error rate

Node <hostname> has <value> receive packet error rate reported by job <job_name>.

Node has high transmit packet error rate

Node <hostname> has <value> transmit packet error rate reported by job <job_name>.

Reached "node crash per hour" threshold

Node <hostname> with shaman node ID <id> has reached the "node crash per hour" threshold.

OOM-kill event detected

OOM-kill event detected on node <hostname> at least once for the last 24 hours. You need to check memory consumption.

Node failed to return to operation

Node <hostname> has failed to automatically return to operation within 30 minutes after a crash. Check the node's hardware, and then try returning it to operation manually.

Node crash detected

Node <hostname> crashed, which started the VM evacuation.

Disk alerts

S.M.A.R.T. warning

Disk “<disk_name>”(<serial>) on node “<hostname>” has failed a S.M.A.R.T. check.

Disk error

Disk “<disk_name>” (<serial>) failed on node “<hostname>”.

Disk is running out of space

Root partition on node “<hostname>” is running out of space (less than 10% or 5 GB of free space).

Disk is out of space

Root partition on node “<hostname>” is running out of space (for non-compute nodes: less than 5% of free space).

Compute node disk is out of space

Root partition on node “<hostname>” is running out of space (for compute nodes: less than 1 GB of free space).

Software RAID is not fully synced

Software RAID <disk_name> on node <hostname> is <value>% synced.

Systemd service is flapping

Systemd service <service_name> on node <hostname> has changed its state more than 5 times in 5 minutes or 15 times in one hour.

SMART Media Wearout warning

Disk <disk_name> on node <hostname> is almost worn out and may fail soon. Consider replacement.

The alert is based on the smart_media_wearout_indicator metric. For details on the Media Wearout Indicator S.M.A.R.T. attribute, refer to Disk health analyzers.

SMART Media Wearout critical

Disk <disk_name> on node <hostname> is worn out and will fail soon. Consider replacement.

The alert is based on the smart_media_wearout_indicator metric. For details on the Media Wearout Indicator S.M.A.R.T. attribute, refer to Disk health analyzers.

Network interface alerts

Network warning

Network interface “<iface_name>” has incorrect settings: <duplex> duplex and <speed> speed.

Network warning

Network interface “<iface_name>” on node “<hostname>” is missing important features (or has them disabled): “<feature_name>”.

Network warning

Network interface “<iface_name>” on node “<hostname>” is not in the full duplex mode.

Network warning

Network interface “<iface_name>” on node “<hostname>” has speed lower than the minimally required 1 Gbps.

Network warning

Network interface “<iface_name>” on node “<hostname>” has an undefined speed.

Network interface is flapping

Network interface <iface_name> on node <hostname> is flapping.

Network bond is not redundant

Network bond <iface_name> on node <hostname> is missing <number> subordinate interface(s).

Data-in-transit encryption alerts

Enabling IPv6 mode takes too much time

Operation to enable the IPv6 mode is running for more than 1 hour. Please contact the technical support.

1. Сancel the operation to enable the IPv6 mode by using the vinfra cluster network encryption cancel command.
2. Retry the operation.
3. If you cannot troubleshoot the problem, contact the technical support team.

Enabling traffic encryption takes too much time

Operation to enable traffic encryption is running for more than 1 hour. Please contact the technical support.

1. Cancel the operation to enable traffic encryption by using the vinfra cluster network encryption cancel command.
2. Retry the operation.
3. If you cannot troubleshoot the problem, contact the technical support team.

System configuration is not optimal for traffic encryption

Traffic encryption is enabled but the storage network is not in the IPv6 mode. Switch on the IPv6 configuration, as described in the product documentation.

1. Disable traffic encryption for the storage network, and then enable it again, as described in Enabling and disabling data-in-transit encryption.
2. If you cannot troubleshoot the problem, contact the technical support team.

Node IPsec certificate will expire in less than 7 days

IPsec certificate for node <hostname> with ID <id> will expire in less than 7 days. Renew the certificate, as described in the product documentation, or contact the technical support.

1. Follow the instructions in Renewing encryption certificates to renew the certificate.
2. If you cannot troubleshoot the problem, contact the technical support team.

Node IPsec certificate has expired

IPsec certificate for node <hostname> with ID <id> has expired. Renew the certificate, as described in the product documentation, or contact the technical support.

1. Follow the instructions in Renewing encryption certificates to renew the certificate.
2. If you cannot troubleshoot the problem, contact the technical support team.