CA Performance Management (CAPM) Data Repository Backup doesn't work with error while loading shared libraries: libcrypto.so.3

Products

• Network Observability
• CA Performance Management

Issue/Introduction

When running the Vertica DB backup as per the documentation:

/opt/vertica/bin/vbr.py --task backup --config-file /data/backup/backup_snapshot.ini

 

The following error is generated:

Error: Unable to launch rsync daemon on backup host: BACKUP_HOST
/opt/vertica/bin/rsync: error while loading shared libraries: libcrypto.so.3: cannot open shared object file: No such file or directory
Traceback (most recent call last):
  File "<stdin>", line 208, in launch
  File "/opt/vertica/oss/python3/lib/python3.11/subprocess.py", line 413, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['/opt/vertica/bin/rsync', '--daemon', '--config=/tmp/vbr_rsyncd/vbr_rsyncd.conf', '--port=50000']' returned non-zero exit status 127.

 

Environment

DX NetOps CAPM 25.4.4 or later

Cause

The error:

Error: Unable to launch rsync daemon on backup host: BACKUP_HOST
/opt/vertica/bin/rsync: error while loading shared libraries: libcrypto.so.3: cannot open shared object file: No such file or directory

shows that when attempting to run the Data Repository backup, the required shared libraries for the Vertica backup tools are missing on the remote backup host, BACKUP_HOST.

Resolution

Vertica's old rsync didn't depend on libcrypto.so.3. This is required though for the latest versions for added security.

Vertica 24.4.0-x provides libcrypto.so.3 in its lib directory. And rsync has internal LD_LIBRARY_PATH for ../../lib. If not found it will look at the system libraries (openssl3-libs).

In this case, if you can't install openssl3-libs, then to get it working, you'll need to copy the file across manually from the Vertica Node to the backup host.

Or alternately, as per the Vertica docs:

• Have either the Vertica rpm or Python 3.7 and rsync 3.0.5 or later installed.

But if that's not an option either, then copy across the file from Node 1 to backup:

scp dradmin@<DR_HOST>:/opt/vertica/lib/libcrypto.so.3 /opt/vertica/lib

Additional Information

TechDocs : DX NetOps 25.4 : Create a Remote Data Repository Backup Host