KB-2240 Appian Data Server fails to start with "Failed to create election service (Raft)" error in the hs-gateway.log file

Maggie Deppe-Walker — Wed, 24 May 2023 04:41:33 GMT

Current Revision posted to Appian Knowledge Base by Maggie Deppe-Walker on 5/24/2023 4:41:33 AM

Symptoms

Appian Data Server (ADS) fails to start with the following error in watchdog.log:

"level":"ERROR","time":"*","logger":"watchdog","caller":"HistoricalStoreStarter.java:80","thread":"process-starter-1","msg":"Failed to start HS gateway (port=5401)"

The following error is observed in the hs-gateway.log:

"level":"FATAL","time":"*","logger":"hs-gateway","caller":"hs/main.go:137","msg":"Failed to create election service (Raft)","pid":*,"hostname":"*.*.*.*","error":"the required entries are not present in the raft log: to fix this issue, delete the election directory (located at <ADS_HOME>/data-server/node/election) on ALL NODES in the cluster and then restart ADS"

Cause

This may happen if ADS data is modified or incorrectly copied in any way during an upgrade, or when converting a standalone environment to a high availability setup.

Action

Follow the actions suggested in the hs-gateway.log:

Delete the election directory (located at <ADS_HOME>/data-server/node/election) on ALL NODES in the cluster.
Restart ADS on all nodes in the cluster.

Affected Versions

This article applies to Appian 18.1 and later.

Last Reviewed: May 2023

Tags: data server, infrastructure

Appian Data Server fails to start with "Failed to create election service (Raft)" error in the hs-gateway.log file

Maggie Deppe-Walker — Thu, 18 May 2023 03:42:32 GMT

Revision 5 posted to Appian Knowledge Base by Maggie Deppe-Walker on 5/18/2023 3:42:32 AM

Symptoms

Appian Data Server (ADS) fails to start with the following error in watchdog.log:

"level":"ERROR","time":"*","logger":"watchdog","caller":"HistoricalStoreStarter.java:80","thread":"process-starter-1","msg":"Failed to start HS gateway (port=5401)"

The following error is observed in the hs-gateway.log:

"level":"FATAL","time":"*","logger":"hs-gateway","caller":"hs/main.go:137","msg":"Failed to create election service (Raft)","pid":*,"hostname":"*.*.*.*","error":"the required entries are not present in the raft log: to fix this issue, delete the election directory (located at <ADS_HOME>/data-server/node/election) on ALL NODES in the cluster and then restart ADS"

Cause

This may happen if ADS data is modified or incorrectly copied in any way during an upgrade, or when converting a standalone environment to a high availability setup.

Action

Follow the actions suggested in the hs-gateway.log:

Delete the election directory (located at <ADS_HOME>/data-server/node/election) on ALL NODES in the cluster.
Restart ADS on all nodes in the cluster.

Affected Versions

This article applies to Appian 18.1 and later.

Last Reviewed: May 2023

Tags: data server, infrastructure

Appian Data Server fails to start with "Failed to create election service (Raft)" error in the hs-gateway.log file

Maggie Deppe-Walker — Thu, 18 May 2023 03:39:25 GMT

Revision 4 posted to Appian Knowledge Base by Maggie Deppe-Walker on 5/18/2023 3:39:25 AM

Symptoms

Appian Data Server (ADS) fails to start with the following error in watchdog.log:

"level":"ERROR","time":"*","logger":"watchdog","caller":"HistoricalStoreStarter.java:80","thread":"process-starter-1","msg":"Failed to start HS gateway (port=5401)"

The following error is observed in the hs-gateway.log:

"level":"FATAL","time":"*","logger":"hs-gateway","caller":"hs/main.go:137","msg":"Failed to create election service (Raft)","pid":*,"hostname":"*.*.*.*","error":"the required entries are not present in the raft log: to fix this issue, delete the election directory (located at <ADS_HOME>/data-server/node/election) on ALL NODES in the cluster and then restart ADS"

Cause

This may happen if ADS data is modified or incorrectly copied in any way during an upgrade, or when converting a standalone environment to a high availability setup.

Action

Follow the actions suggested in the hs-gateway.log:

Delete the election directory (located at <ADS_HOME>/data-server/node/election) on ALL NODES in the cluster.
Restart ADS on all nodes in the cluster.

Affected Versions

This article applies to Appian 18.1 and later.

Last Reviewed: May 2023

Tags: data server, infrastructure

Appian Data Server fails to start with "Failed to create election service (Raft)" error in the hs-gateway.log file

Tejas Kargutkar — Tue, 16 May 2023 20:02:11 GMT

Revision 3 posted to Appian Knowledge Base by Tejas Kargutkar on 5/16/2023 8:02:11 PM

Symptoms

Appian Data Server(ADS) fails to start with the following error in watchdog.log:

"level":"ERROR","time":"*","logger":"watchdog","caller":"HistoricalStoreStarter.java:80","thread":"process-starter-1","msg":"Failed to start HS gateway (port=5401)"

Following error is observed in the hs-gateway.log:

"level":"FATAL","time":"*","logger":"hs-gateway","caller":"hs/main.go:137","msg":"Failed to create election service (Raft)","pid":*,"hostname":"*.*.*.*","error":"the required entries are not present in the raft log: to fix this issue, delete the election directory (located at <ADS_HOME>/data-server/node/election) on ALL NODES in the cluster and then restart

Cause

This may happen if ADS data is modified or incorrectly copied in any way during upgrade or when converting a standalone environment to a high availability setup.

Action

Follow the actions suggested in the hs-gateway.log which includes deleting the election directory (located at <ADS_HOME>/data-server/node/election) on ALL NODES in the cluster and then restarting ADS.

Affected Versions

This article applies to Appian 18.1 and later.

Last Reviewed: May 2023

Tags: data server, infrastructure

Appian Data Server fails to start with "Failed to create election service (Raft)" error in the hs-gateway.log file

Tejas Kargutkar — Tue, 16 May 2023 20:01:45 GMT

Revision 2 posted to Appian Knowledge Base by Tejas Kargutkar on 5/16/2023 8:01:45 PM

Symptoms

Appian Data Server(ADS) fails to start with the following error in watchdog.log:

"level":"ERROR","time":"*","logger":"watchdog","caller":"HistoricalStoreStarter.java:80","thread":"process-starter-1","msg":"Failed to start HS gateway (port=5401)"

Following error is observed in the hs-gateway.log:

"level":"FATAL","time":"*","logger":"hs-gateway","caller":"hs/main.go:137","msg":"Failed to create election service (Raft)","pid":*,"hostname":"*.*.*.*","error":"the required entries are not present in the raft log: to fix this issue, delete the election directory (located at <ADS_HOME>/data-server/node/election) on ALL NODES in the cluster and then restart

Cause

This may happen if ADS data is modified or incorrectly copied in any way during upgrade or when converting a standalone environment to a high availability setup.

Action

Affected Versions

This article applies to Appian 18.1 and later.

Last Reviewed: May 2023

Tags: data server, infrastructure

Appian Data Server fails to start with "Failed to create election service (Raft)" error in the hs-gateway.log fil

Tejas Kargutkar — Tue, 16 May 2023 20:01:33 GMT

Revision 1 posted to Appian Knowledge Base by Tejas Kargutkar on 5/16/2023 8:01:33 PM

Symptoms

Appian Data Server(ADS) fails to start with the following error in watchdog.log:

"level":"ERROR","time":"*","logger":"watchdog","caller":"HistoricalStoreStarter.java:80","thread":"process-starter-1","msg":"Failed to start HS gateway (port=5401)"

Following error is observed in the hs-gateway.log:

"level":"FATAL","time":"*","logger":"hs-gateway","caller":"hs/main.go:137","msg":"Failed to create election service (Raft)","pid":*,"hostname":"*.*.*.*","error":"the required entries are not present in the raft log: to fix this issue, delete the election directory (located at <ADS_HOME>/data-server/node/election) on ALL NODES in the cluster and then restart

Cause

This may happen if ADS data is modified or incorrectly copied in any way during upgrade or when converting a standalone environment to a high availability setup.

Action

Affected Versions

This article applies to Appian 18.1 and later.

Last Reviewed: May 2023

Tags: data server, infrastructure