I'm having issues with blockchain catchup that I believe to be related to the underlying file system.
Symptoms: Significantly behind the network, start client and begin catchup. Catchup proceeds for 1-2GB then halts. CPU usage is 0 for the process, but it holds 500MB-1GB RAM allocated. 0 connections. Console commands receive no response, so crashed process? If I restart the client it will proceed again for a similar length of time, then repeat the behaviour.
Last run:
BOOT AT: ~353355
STUCK AT: 359430
Logs show many of these errors:
2015-11-21 03:39:26 ERROR: AcceptToMemoryPool : nonstandard transaction: non-final
End of log:
2015-11-21 04:03:10 UpdateTip: new best=0000000000000000041ca40bdec7946dc4105fea0cefb26ea7fb8914880fe089 height=359623 log2_work=82.893042 tx=71115044 date=2015-06-06 04:15:15 progress=0.806010
2015-11-21 04:03:14 UpdateTip: new best=0000000000000000028104e61aabd1b31bd0a136c33daecdd92165126aeb7ce1 height=359624 log2_work=82.893074 tx=71115578 date=2015-06-06 04:29:37 progress=0.806021
2015-11-21 04:03:15 UpdateTip: new best=00000000000000000b0c4437cd594ae56bb6dc532c497af9b595b653311345f5 height=359625 log2_work=82.893107 tx=71115639 date=2015-06-06 04:26:21 progress=0.806019
2015-11-21 04:03:26 Pre-allocating up to position 0xd00000 in rev00278.dat
2015-11-21 04:11:27 UPnP Port Mapping successful.
2015-11-21 04:31:27 UPnP Port Mapping successful.
2015-11-21 04:51:27 UPnP Port Mapping successful.
2015-11-21 05:07:26 socket inactivity timeout
2015-11-21 05:09:30 socket inactivity timeout
2015-11-21 05:11:27 UPnP Port Mapping successful.
2015-11-21 05:31:27 UPnP Port Mapping successful.
2015-11-21 05:51:27 UPnP Port Mapping successful.
2015-11-21 06:11:27 UPnP Port Mapping successful.
2015-11-21 06:31:27 UPnP Port Mapping successful.
2015-11-21 06:51:27 UPnP Port Mapping successful.
2015-11-21 07:11:27 UPnP Port Mapping successful.
2015-11-21 07:31:27 UPnP Port Mapping successful.
2015-11-21 07:51:27 UPnP Port Mapping successful.
2015-11-21 08:11:27 UPnP Port Mapping successful.
2015-11-21 08:31:27 UPnP Port Mapping successful.
2015-11-21 08:51:28 UPnP Port Mapping successful.
2015-11-21 09:11:28 UPnP Port Mapping successful.
2015-11-21 09:31:28 UPnP Port Mapping successful.
This seems to happen on my Flexraid disk array(Snapshot RAID) that appears to the OS (2008R2) as a regular NTFS 8TB volume but not on a regular 160GB backup drive. I've seen issues once before when an application attempted to create many files at once, this was resolve by tweaking that applications write caching.
Any suggestions for tweaks to allow stable disk IO?
EDIT: Forgot client info
"version" : 90300, v0.9.3.0-g40d2041-beta
"protocolversion" : 70002,
"walletversion" : 60000,
"balance" : 2.27391276,
"blocks" : 353567,
"timeoffset" : 9,
"connections" : 8,
NB: Client is out of date BUT I've tested with the latest LTC-QT and have the same RAID no single yes behaviour so its unlikely the cause.
AcceptToMempool
error isn't an error that's anything to do with anything, you can ignore that.