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3797621 - SAP HANA System Replication — HA Hook Kills Secondary Node During Initial Full Data Transfer

Symptom

During SAP HANA System Replication initial full data transfer, the secondary node is unexpectedly shut down mid-sync. After the shutdown, all replication channels from the primary lose connectivity with errors such as:

```
CONNECTION TIMEOUT / Communication channel closed
```

The secondary indexserver trace shows the replication was in progress (e.g., ~81% of total data transferred) immediately before shutdown:

```
setStatusDetails(): Secondary: Full Replica: 81 % (XXXX/XXXX GB), isCloseMessage=0, isCloseMessageSet=0
```

Followed by a shutdown sequence:

```
Shutdown requested while service startup still running - will wait 1 minute for the startup to finish
process is terminating -> aborting nameserver retries
Preparing for shutting service down
Preparing to shutdown
```

The nameserver trace shows the HA/DR provider hook (`susChkSrv`) declared the indexserver as lost and issued a stop action:

```
srv:indexserver-<port>-no-yes db:<SID>-<instance>-yes daem:yes
LOST: indexserver event looks like a lost indexserver (status=no)
LOST: stop instance. action_on_lost=stop


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Environment

SAP HANA PLATFORM EDITION 2.0

Keywords

indexserver startup failure, persistence startup error, could not read anchorpage, exception 3000284, anchorpage invalid savepoint version, suschksrv, action_on_lost, system replication, full replica, connection timeout, nameserver watchdog, savepoint, hana scale-out, re-register secondary, force full replica , KBA , HAN-DB-HA , SAP HANA High Availability (System Replication, DR, etc.) , BC-OP-LNX , Linux , HAN-DB , SAP HANA Database , Problem

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