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Comment: Document modified as per SWAR-9159

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Swarm 9.6

Gateway 5.4

Elasticsearch 2.3.3

Migration to ES 6.8.6 required
(new cluster and new Search feed)

Swarm 11.3

Gateway 5.4.1

Elasticsearch 2.3.3

Gateway 7.0

Elasticsearch 5.6.12

Elasticsearch 6.8.6

Swarm 15.2

Gateway 7.7

Elasticsearch 6.8.6

Upgrade in-place to ES 7.5.2

Elasticsearch 7.5.2

Upgrade in-place to future ES version

Swarm 15.23

Gateway 7.10.46

Elasticsearch 7.5.2, 7.17.19

Upgrade in-place to future ES version

The high-level upgrade sequence when upgrading from Swarm 11 or earlier is as follows:

  1. Swarm 11 bundle:

    1. Upgrade Swarm to 11.3, as guided by DataCore Support and the Settings Checker report.

    2. Upgrade to Gateway 5.4.1 if currently running Elasticsearch 2.3.3. Upgrade to Gateway 7.0 if currently running Elasticsearch 5.6.12. Refer to Upgrading from Gateway 5.x.

    3. Add an Elasticsearch 6 cluster and start a search feed, leaving the old feed as primary (see Migrating from Older Elasticsearch).

      1. Verify the [storage cluster] managementPassword is set properly in the gateway.cfg file if errors are encountered during feed creation. Correct the value and restart the gateway service if a change is needed.

    4. When the feed completes, make it primary.

    5. Upgrade to Gateway 7.0 if currently running Gateway 5.4.1.

    6. Configure gateway.cfg indexerHosts to point to the new Elasticsearch 6 cluster and restart CloudGateway:

      Code Block
      sudo systemctl restart cloudgateway

  2. Swarm 15 bundle:
    Follow the appropriate column in Upgrade Paths, above. The general sequence is:

    1. Upgrade to SCS 1.45.

    2. Upgrade to Swarm Storage 15.

    3. Upgrade to Gateway 7.7 (from version 5.4.1, referring to Upgrading from Gateway 5.x)to Elasticsearch 7.5.2 temporarily and then upgrade to the latest Gateway 7.10 as Gateway 7.7 is not compatible with Elasticsearch 7.17. Gateway 7.7 is required if upgrading from Elasticsearch 6. Ask support if Gateway 7.7 RPM is needed.

    4. Verify Swarm operations (this is the time to downgrade).

    5. Run the latest ES config configuration script for an in-place upgrade to the latest Elasticsearch 7.

    6. Upgrade to the latest Gateway 7.10.4. See Upgrading Gateway for upgrading the gateway.

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