Re: avoid 3-mds fs laggy on 1 rejoin?

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Dzianis Kahanovich пишет:

Waith this night for MDSs restart.

Now (3 active mds, balanced, nodes upgrade from git & restart - first - mon, next - mds+osd, without debug) - reduced time, but anymore clients wait to rejoin complete of related mds. May be need rebalance with maximum "busy" weight on shutdown?

2015-10-09 18:08:29.828889 7f7d67cc3700  1 mds.1.4 rejoin_joint_start
2015-10-09 18:09:50.782661 7f7d63bba700 0 log_channel(cluster) log [WRN] : open_snap_parents has: 2015-10-09 18:09:50.782668 7f7d63bba700 0 log_channel(cluster) log [WRN] : unconnected snaprealm 100 2015-10-09 18:09:50.782672 7f7d63bba700 0 log_channel(cluster) log [WRN] : client.5302119 snapid 1 2015-10-09 18:09:50.782675 7f7d63bba700 0 log_channel(cluster) log [WRN] : client.5311408 snapid 1 2015-10-09 18:09:50.782677 7f7d63bba700 0 log_channel(cluster) log [WRN] : unconnected snaprealm 102 2015-10-09 18:09:50.782680 7f7d63bba700 0 log_channel(cluster) log [WRN] : client.5302119 snapid 1
2015-10-09 18:09:50.827008 7f7d63bba700  1 mds.1.4 rejoin_done

2015-10-09 18:21:48.345565 7f6471277700  1 mds.2.5 rejoin_start
2015-10-09 18:21:51.443000 7f6471277700  1 mds.2.5 rejoin_joint_start
2015-10-09 18:23:13.381992 7f646d16e700 0 log_channel(cluster) log [WRN] : open_snap_parents has: 2015-10-09 18:23:13.382002 7f646d16e700 0 log_channel(cluster) log [WRN] : unconnected snaprealm 100 2015-10-09 18:23:13.382012 7f646d16e700 0 log_channel(cluster) log [WRN] : client.5302119 snapid 1 2015-10-09 18:23:13.382015 7f646d16e700 0 log_channel(cluster) log [WRN] : client.5311408 snapid 1
2015-10-09 18:23:13.474911 7f646d16e700  1 mds.2.5 rejoin_done

2015-10-09 18:28:17.767139 7f0c36252700  1 mds.0.710 rejoin_joint_start
2015-10-09 18:28:35.062585 7f0c36252700 0 log_channel(cluster) log [WRN] : open_snap_parents has: 2015-10-09 18:28:35.062592 7f0c36252700 0 log_channel(cluster) log [WRN] : unconnected snaprealm 102 2015-10-09 18:28:35.062597 7f0c36252700 0 log_channel(cluster) log [WRN] : client.5302119 snapid 1
2015-10-09 18:28:35.079123 7f0c36252700  1 mds.0.710 rejoin_done



--
WBR, Dzianis Kahanovich AKA Denis Kaganovich, http://mahatma.bspu.unibel.by/
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