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TarMK Cold Standby - Channel Unregistered for Primary Instance


Level 1

I'm trying to setup TarMK Cold Standby in AEM6.3.

I can see the log is running in both primary and standby instance.

After the setup done, I still can see assets and sites view from standby instance. Is it expected?

I try to update some assets in the primary instance and those assets are not sync-ed to standby instance.

I also found the status in primary instance is "channel unregistered".


Anyone face this issue before?

Response is highly appreciated.

3 Replies


Level 1

Hi Hamid,

The logs is not the same.

This is what i get from primary and standby tarmk logs:


02.11.2019 16:18:07.060 *DEBUG* [TarMK flush [/<CQ_Directory>/aem/crx-quickstart/repository/segmentstore]] org.apache.jackrabbit.oak.segment.file.TarWriter Writing segment 5a16bc19-3b5d-4893-a88e-b62554187e60 to /<CQ_Directory>/aem/crx-quickstart/repository/segmentstore/data10507a.tar

02.11.2019 16:18:07.089 *DEBUG* [TarMK flush [/<CQ_Directory>/aem/crx-quickstart/repository/segmentstore]] org.apache.jackrabbit.oak.segment.file.TarRevisions TarMK journal update 67a4a05e-c534-4ea3-a90d-2f4dda2fc058.00000038 -> 5a16bc19-3b5d-4893-a88e-b62554187e60.00000077

02.11.2019 16:18:45.585 *DEBUG* [sling-default-9-Waiting:com_day_cq_replication_job_publish:1262139350] org.apache.jackrabbit.oak.segment.SegmentWriter NodeStats{op=write, nodeCount=13, writeOps=13, deDupNodes=0, cacheHits=0, cacheMiss=0, hitRate=NaN}


02.11.2019 16:28:29.388 *DEBUG* [sling-oak-2-Registered Service.740] org.apache.jackrabbit.oak.segment.SegmentWriter NodeStats{op=write, nodeCount=2, writeOps=2, deDupNodes=0, cacheHits=0, cacheMiss=0, hitRate=NaN}

02.11.2019 16:28:31.776 *DEBUG* [TarMK flush [/<CQ_Directory>/aem-standby/aem/crx-quickstart/repository/segmentstore]] org.apache.jackrabbit.oak.segment.SegmentBufferWriter Writing data segment: id=57294c0c-d2b4-4039-a8e8-b156d7a79845,size=25040,segmentIdCount=9,recordIdCount=362,recordCount=33

02.11.2019 16:28:31.776 *DEBUG* [TarMK flush [/<CQ_Directory>/aem-standby/aem/crx-quickstart/repository/segmentstore]] org.apache.jackrabbit.oak.segment.file.TarWriter Writing segment 57294c0c-d2b4-4039-a8e8-b156d7a79845 to /<CQ_Directory>/aem-standby/aem/crx-quickstart/repository/segmentstore/data10507a.tar


Level 1

This issue has been solved by updating the folder structure for config file. Earlier the install folder was renamed to install.primary and install.standby. After create new folder install.primary and install.standby under install folder, the standby is working now.