000037472 - RSA NetWitness Logs & Network: When running nw-recovery-tool on Event Stream Analysis Host, backup is failing on contexthub-server

Document created by RSA Customer Support Employee on Jul 8, 2019
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Article Number000037472
Applies ToRSA Product Set: NetWitness Logs & Network
RSA Product/Service Type: Event Stream Analysis, Context Hub, nw-recovery-tool
RSA Version/Condition: 11.1.x, 11.2.x, 11.3.x
Platform: CentOS
O/S Version: 7
IssueWhen using nw-recovery-tool on ESAPrimary, this is failing on contexthub-server

Example:

# nw-recovery-tool --export --dump-dir /var/netwitness/backup --category ESAPrimary


Produces the outputs:

[2019-05-10T04:40:58+00:00] <23680> (INFO) Executing: before-export [1/1]...
/usr/bin/nw-recovery-tool: line 88: /var/lib/netwitness/contexthub-server/nwtools/backup.sh: No such file or directory
[2019-05-10T04:40:58+00:00] <23680> (INFO) contexthub-server: [failed]
[2019-05-10T04:40:58+00:00] <23680> (ERROR) Failed to execute before-export step [1/1]!

 

CauseThere are a few possible causes:
  1. contexthub-server RPM is not installed. This can be confirmed with the following command:

    # rpm -q rsa-nw-contexthub-server

  2. Backup script is missing for some reason. This can be confirmed with the following command:

    # ls -l /var/netwitness/contexthub-server/nwtools/backup.sh

  3. Missing symbolic link from /var/lib/netwitness to /var/netwitness. This can be confirmed with the command:

    # ls /var/lib/netwitness -l
    lrwxrwxrwx. 1 root root 15 Apr  1 05:17 /var/lib/netwitness -> /var/netwitness

WorkaroundIf the cause is 1) or 2) then can either install the rsa-nw-contexthub-server package using yum.

# yum install rsa-nw-contexthub-server


Alternative 1: Specify all components except contexthub-server for backup


# nw-recovery-tool --export --dump-dir /var/netwitness/backup --category ESAPrimary --component nw-base --component nw-pki --component rabbitmq --component salt-minion --component orchestration-client --component correlation-server --component esa-analytics-server --component event-stream-analysis



Alternative 2: Permanently exclude Context Hub from being backed up in nw-recovery-tool

  1. Backup sequence file

    # cp category.sequence category.sequence.$(date +"%Y%m%d")

  2. Edit /etc/netwitness/recovery-tool/category.sequence and remove the following line:

    ESAPrimary:contexthub-server

  3. Then you can run the ESA backup as normal:

    # nw-recovery-tool --export --dump-dir /var/netwitness/backup --category ESAPrimary

If the cause is 3) the missing symbolic link, then this link needs to be recreated using the command:


# ln -s /var/netwitness /var/lib/netwitness
NotesNetWitness Logs & Network v11.1 was the first version that included rsa-nw-recovery-tool RPM by default.
While this error could occur under 11.0, it would require manual installation of this RPM from a later version of NetWitness.

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