Known Issues
Error on Instance recovery - Instance recovery failed: Failed checking snapshot availability
Issue: Error - Instance recovery failed: Failed checking snapshot availability When running a recovery, first CPM downloads the data from the bucket, then it creates a temporary snapshot and then creates the instance. This error occurs when a timeout ...
Objects gets deleted manually from S3 bucket from AWS console.
Issue: S3 backup objects in a bucket get deleted manually directly from the AWS account. For example, a user logs into AWS and deletes items stored in the bucket manually. Solution: This is not a supported method of deleting backups. You will need to ...
Placing a life cycle policy on a bucket in AWS causes the S3 backups or recoveries to fail
Issue: Placing a lifecycle policy on a bucket in AWS causes the S3 backups or recoveries to fail. Solution: Placing a lifecycle policy on bucket in AWS using a bucket policy is not supported for bucket used to store snapshots. If any object was moved ...
How To Install a Patch to the N2WS Instance
How To Install a Patch on the N2WS Instance 1. Go to General Settings, then choose "Patches". 2. Click "choose file" , browse to the patch file and open it. 3. The file name should now appear in the window, then click on "upload and install". 4. You ...
N2WS-22914 - Unable to encrypt root volume of running Worker instance
Issue: Cannot encrypt the root volume of a running worker instance. The attached patch and instructions will add support to enable encryption on a running worker instance. Solution: With either of the below solutions, you must also edit the ...
SSH to the CPM instance fails after upgrade to CPM 4.2.x with "Server refused our key"
Problem: After upgrading the CPM instance to version 4.2.x, when you try to SSH to the server with PuTTY it may fail with the error "Server refused our key": Resolution: CPM 4.2 upgrades the version of Ubuntu to 22.04. This requires you to be using ...
N2WS-22641 - Backup stuck in progress when permission missing
Issue: When 'ec2:DescribeNetworkInterface' permission is missing, all backups get stuck in progress ERROR: create_instance_record(record_management.py:507) Could not get primary network interface info ( instance: i-12345678, NIC: eni-9876543). ...
N2WS-21092 - S3 cleanup fails with Out of range value
Issue: Cleanup is failing with below error in the cpm_server logs ERROR: other_maintenance_tasks(handlers.py:2003) Failed running S3 cleanup for disabled policies, encountered an exception Traceback (most recent call last): File ...
N2WS-22034 - Azure VM recovery under different RG does not work
Issue: When the VM networking is in a different RG then the VM itself, the recover fails with The Resource 'Microsoft.Network/virtualNetworks/MyVnet' under resource group 'MyRGl' was not found. Solution: Patch for v4.1.1a is available and attached to ...
N2WS-21940 - S3 Cleanup failing to start
Issue: cleanup process is showing as not started for a long long time in S3 cleanup log 9/10/2022 22:12 Info ===== Cleanup of policy xyz (account: MyAccount, user: MyUser) ===== And error is shown in the logs Traceback (most recent call last): File ...
N2WS-21963 - Copy to S3 fails with Failed to stop processor(s)
Issue: Copy to S3 is failing with following error ERROR: add_error(segment_handler.py:322) copy of md table of segment 1 of volume vol-12345678, instance i-0987654321, backup 123 fail : Failed to stop processor(s): not all blocks were processed ...
N2WS-21868 - add support for new regions
Issue: This patch add support to backup targets in the following regions: Middle East (UAE), Europe (Zurich), Europe (Spain), Asia Pacific (Hyderabad) Update: new patch with Melbourne added Solution: Patch for v4.1.1/v4.1.1a is available and attached ...
4.1.1a Fix pack
Issue: This patch bundle include the following fixes. N2WS-21693 - Enable modification to Preserve Tags checkbox on root volumes N2WS-21639 - Recovery scenario doesn't restore the instance role of a backed up instance N2WS-21638 - After upgrade, ...
N2WS-21543 - VPC download template fails with template format error "Number of resources is greater than maximum allowed"
Issue: VPC download CF template or clone fails with the below error ERROR: validate_vpc_template_for_stack(capture_vpc.py:178) Failed validating stack. Reason: ValidationError, message Template format error: Number of resources, 1324, is greater than ...
Recovery fails with "Enhanced networking with the Elastic Network Adapter (ENA) is required for the 'xxxx.XXXXX' instance type. Ensure that you are using an AMI that is enabled for ENA."
When attempting a windows instance recovery with ENA enabled, it may fail with the following error: "Enhanced networking with the Elastic Network Adapter (ENA) is required for the 'xxxx.XXXXX' instance type. Ensure that you are using an AMI that is ...
N2WS-21382 - S3 copy worker issues
Issues: 1. In some rare cases, worker's volumes are not removed after worker instance is terminated 2. Unnecessary alert is raised when none default worker type is used: Worker i-12345 was launched for FLR as t2.micro, which may not an optimal ...
N2WS-21358 - Cannot add very large FSX to policy
Issue: Cannot add large FSX to policy, failing with below error in server logs ERROR: scan_for_aws_resources(backup_tag.py:306) Encountered exception while scanning tags for account abc Traceback (most recent call last): File ...
N2WS-21278 - clone TGW fails with KeyError
Issue: User can't clone or download TGW and it fail with this error in server logs ERROR: execute(vpc_operations.py:468) Failed download template: 42. Wet: False Traceback (most recent call last): File ...
N2WS-20837 - S3 operations fail for versioned bucket without immutable
Issue: Copy to S3 or S3 cleanup fail in 4.1 when there is a bucket with versioning enabled (or once enabled and then disabled) without immutable option turned on. Solution: Patch for v4.1.0 is available and attached to this KB. Click here to go back ...
N2WS-20766 - RDS export fails due to error "RestoreDBInstanceFromDBSnapshot operation: No default subnet detected"
Issue: When trying to export RDS instance to S3 bucket, it fails with the following error: Error Process reported error: Failed to create DB instance from snapshot cpm-policy-1-db1-2011-1-11-1-11: An error occurred (InvalidSubnet) when calling the ...
N2WS-20695 - Standard edition users can't create AWS backup account
Issue: User get "Cannot Locate Resource" error when trying to create an AWS backup account (with Standard edition server) Solution: Patch for v4.1.0 is available and attached to this KB. Click here to go back to the Release notes: Release notes for ...
N2WS-20407 - FLR file corruption
Issue: Due to recent changes in Cloud API's, the following possible issues may occur when using File Level Recovery: 1) Some files/folders may be missing from the view. 2) Some files may be recovered with an incorrect content (unbeknownst to the ...
N2WS-20379 - Possible invalid archive configuration
Issue: Glacier Archive retention is calculated based on the original backup creation time (just like S3 retention), and not based on the time of the archive. This misunderstanding can lead customers to set archive retention lower than S3 ...
N2WS-19901 - UI Agents screen times out
Issue: When there are lots of VSS agents and trying to open the Agent tab in the UI, it get timed out and does not load Solution: Patch for v4.0.0c Available and attached to this KB Click here to go back to the Release notes: Release notes for the ...
Apache Log4j2 vulnerability CVE-2021-44228
Q: Does Apache Log4j2 vulnerability CVE-2021-44228 (https://nvd.nist.gov/vuln/detail/CVE-2021-44228) affect CPM? A: No, this vulnerability is not relevant to any version of CPM
N2WS-19829 - can't create S3 Repository for bucket located in enabled region with assume role account type
Issue: When the S3 bucket is located in new/enabled region (such as Hong Kong for example), Then creating new S3 Repository will fail with the following error in UI Failed creating repository. Reason: ['Failed accessing the specified bucket ...
N2WS-19716 - policy fails to load backup targets when region has EC2 with root volume
Issue: When target region has an EC2 instance with instance-store root type volume, the policy will fails to load backup targets in the UI with following errors in UI: Failed to load some AWS instances data: KeyError: 'RootDeviceName' Solution: Patch ...
N2WS-19463 - SSM backup fails with ValueError
Issue: During backup of an EC2 instance with SSM option enabled, agent might crash with following error in the cpm_agent.log: ERROR: backup_function(agent.py:2644) Failing since backup function caught an exception for policy policy_name, schedule ...
N2WS-19404 - Extremely high amount of DescribeSnapshots API requests
Issue: During backup of an EC2 instance, CPM may start sending DescribeSnapshots API requests non-stop, sometimes many times in a second, instead of doing so once every few seconds. Solution: Patch for v4.0.0a available and attached to this KB Click ...
N2WS-19168 - DR fails because AMI has marketplace product code
Issue: When trying to do DR for an AMI, if there is a product code on the AMI, AWS will return the following error (AWS limitation): Error - AMI DR copy image failed for region EU (Frankfurt), AMI ami-123456789. Reason: Images from AWS Marketplace ...
N2WS-19169 - Cleanup may fail because of "Can't find mapping for account "
Issue: Cleanup process may fail because server fails to clean cross-region AMI DR: ERROR: get_account_dict(account_utils.py:114) account PolicyName(user root) not found in account map, even after refresh. ERROR: ...
N2WS-19081 - Resource Control Group schedules might change unintentionally
Issue: Resource Control Group schedules might change unintentionally When opening RCG in the UI, it shows incorrect schedule times, then when clicking save it changes the time of the Resource Control Group. In addition, schedules for RCG might also ...
N2WS-18942/18930/18939 - several post upgrade issues
Issue: after upgrading to 4.0 user might have several issues: Permissions changed on cpmdata/scripts after upgrade The restore button is grayed out for backups taken with CPM 3.x for Aurora clusters. Getting exception: malformed node or string: None ...
N2WS-18908 - backups are aborting due to an internal agent error.
Issue: backups are aborting due to an internal agent error and the logs show the following: cpm_agent.log 2021-07-08 18:53:23,963:[140084355565376][----------] ERROR: <module>(cpmagent_upstart.py:27) Caught exception from run_main. Will crash now ...
N2WS-18738 - Password saved as plain text for Recovery Scenario target added via RestAPI
Issue: When creating Recovery Scenario(CPM v3.0 and up) and adding a backup target via Rest API, it will save the following details as plain text Proxy password for S3 instance recovery if used IAM AWS Secret Key when providing alternate Credential ...
EFS Recovery failed - You do not have permission to use the specified KMS key
Recovery might fail with this error: This error message is an indicator that the IAM Role used for the recovery is not listed as a Key User on the KMS key. Follow the instructions below and then retry the recovery: 1. Identify the IAM Role name from ...
N2WS-18084 - Volumes may be excluded from backup unexpectedly
Issue: When configuring a backup to exclude a volume for an instance, after policy run configuration might change to exclude all volumes. Solution: Patch for v3.2.1 Available and attached to this KB Click here to go back to the Release notes: Release ...
N2WS-17075 - logs can be unexpectedly truncated
Issue: CPM logs of Server, API and DR might get unexpectedly truncated, resulting in smaller logs that might make it harder to analyze potential issues. Solution: Patch for v3.2.1 Available and attached to this KB Click here to go back to the Release ...
N2WS-17670 - Worker volumes might not get deleted after S3 copy job
Issue: Volume that are attached to a CPM worker might not get deleted after the S3 copy completes. Solution: Patch for v3.2.1 Available and attached to this KB Click here to go back to the Release notes: Release notes for the latest v3.2.x CPM ...
N2WS-17820 - Volume DR fails with TypeError: %d format: a number is required, not str
Issue: When doing cross region DR, it might fail with following error in the cpm_dr logs: 2021-03-02 00:13:04,123:[140450227709760] ERROR: dr_function(dr.py:164) DR function encountered an exception Traceback (most recent call last): ... ... ...
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