503 DB is currently under maintenance

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1

Sync gateway database goes under maintenance when one of the server is timed out in the couchbase cluster

Following is the log from couch base server
Node ‘ns_1@******1’ saw that node ‘ns_1@******2’ went down. Details: [{nodedown_reason,
net_tick_timeout}] ns_node_disco 005 ns_1@******1 3:57:08 PM Mon Sep 18, 2017
Node ‘ns_1@******1’ saw that node ‘ns_1@******3’ went down. Details: [{nodedown_reason,
net_tick_timeout}] ns_node_disco 005 ns_1@******1 3:57:08 PM Mon Sep 18, 2017

The sync gateway doesnt connect until a restart is done. I saw that for TAP it is fixed here https://github.com/couchbase/sync_gateway/issues/1710. Is it fixed for DCP too? Because I am using DCP in configuration of sync gateway.
I am using sync gateway 1.4.1 EE and Couchbase 4.6.2

2

@adamf Can you help on this please ?

3

Try the SG 1.5 BETA2 and CB 5.x BETA 2 it uses DCP which is more resilient on disconnects and restarts.
You can also change the feed type in 1.4.x to DCP but I know 1.5 Beta 2 has few bug fixes related to DCP.

Also you’ll see replication down to the CBL faster when SG uses DCP to update the channel cache and _changes feeds.