PoW launched during resync

Created by: M5oul

Resync sometimes launch PoW:

2017-04-12T10:22:54+02:00 - info: Block #9626 added to the blockchain in 398 ms
2017-04-12T10:22:55+02:00 - info: POST Block block#9626
2017-04-12T10:22:55+02:00 - info: Block #9627 added to the blockchain in 401 ms
2017-04-12T10:22:55+02:00 - info: POST Block block#9627
2017-04-12T10:22:55+02:00 - info: Block #9628 added to the blockchain in 406 ms
2017-04-12T10:22:56+02:00 - info: POST Block block#9628
2017-04-12T10:22:56+02:00 - info: Block #9629 added to the blockchain in 486 ms
2017-04-12T10:22:56+02:00 - info: Peer 4Uz7X27jQMAf3jqL2fr75ckZ6Jgi9TZL9fMf9TR9vBvG unreachable: now considered as DOWN.
2017-04-12T10:22:56+02:00 - info: Will pull blocks from the network in 0 min 20 sec
2017-04-12T10:22:56+02:00 - warn: Pulling done. Continue proof-of-work loop.
2017-04-12T10:22:56+02:00 - info: POST Block block#9629
2017-04-12T10:22:59+02:00 - info: Generating proof-of-work with 5 leading zeros followed by [0-9A-C]... (CPU usage set to 35%) for block#9630 GfKERH
2017-04-12T10:22:59+02:00 - info: Stop proof-of-work worker #1
2017-04-12T10:22:59+02:00 - info: Stop proof-of-work worker #2
2017-04-12T10:22:59+02:00 - info: Stop proof-of-work worker #3
2017-04-12T10:22:59+02:00 - info: Stop proof-of-work worker #4
2017-04-12T10:22:59+02:00 - info: Block #9630 added to the blockchain in 2947 ms
2017-04-12T10:22:59+02:00 - info: Stop proof-of-work worker #1
2017-04-12T10:22:59+02:00 - info: Stop proof-of-work worker #2
2017-04-12T10:22:59+02:00 - info: Stop proof-of-work worker #3
2017-04-12T10:22:59+02:00 - info: Stop proof-of-work worker #4
2017-04-12T10:22:59+02:00 - info: Stop proof-of-work worker #1
2017-04-12T10:22:59+02:00 - info: Stop proof-of-work worker #2
2017-04-12T10:22:59+02:00 - info: Stop proof-of-work worker #3
2017-04-12T10:22:59+02:00 - info: Stop proof-of-work worker #4
2017-04-12T10:23:00+02:00 - info: POST Block block#9630
2017-04-12T10:23:00+02:00 - warn: Waiting for the end of pulling...
2017-04-12T10:23:00+02:00 - info: Block #9631 added to the blockchain in 573 ms
2017-04-12T10:23:00+02:00 - info: Stop proof-of-work worker #1
2017-04-12T10:23:00+02:00 - info: Stop proof-of-work worker #2
2017-04-12T10:23:00+02:00 - info: Stop proof-of-work worker #3
2017-04-12T10:23:00+02:00 - info: Stop proof-of-work worker #4
2017-04-12T10:23:00+02:00 - info: POST Block block#9631
2017-04-12T10:23:00+02:00 - info: Block #9632 added to the blockchain in 377 ms
2017-04-12T10:23:00+02:00 - info: Stop proof-of-work worker #1
2017-04-12T10:23:00+02:00 - info: Stop proof-of-work worker #2
2017-04-12T10:23:00+02:00 - info: Stop proof-of-work worker #3
2017-04-12T10:23:00+02:00 - info: Stop proof-of-work worker #4
2017-04-12T10:23:00+02:00 - info: Stop proof-of-work worker #1
2017-04-12T10:23:00+02:00 - info: Stop proof-of-work worker #2
2017-04-12T10:23:00+02:00 - info: Stop proof-of-work worker #3
2017-04-12T10:23:00+02:00 - info: Stop proof-of-work worker #4
2017-04-12T10:23:00+02:00 - info: GIVEN proof-of-work for block#9630 with 5 leading zeros followed by [0-9A-C]! stop PoW for GfKERH
2017-04-12T10:23:00+02:00 - warn: The proof-of-work generation was canceled: Proof-of-work computation canceled because block received
2017-04-12T10:23:00+02:00 - info: POST Block block#9632
2017-04-12T10:23:01+02:00 - info: Block #9633 added to the blockchain in 402 ms
2017-04-12T10:23:01+02:00 - info: POST Block block#9633
2017-04-12T10:23:01+02:00 - info: Block #9634 added to the blockchain in 423 ms
2017-04-12T10:23:01+02:00 - info: POST Block block#9634
2017-04-12T10:23:01+02:00 - info: Block #9635 added to the blockchain in 437 ms
2017-04-12T10:23:02+02:00 - info: POST Block block#9635
2017-04-12T10:23:02+02:00 - info: Block #9636 added to the blockchain in 368 ms

The timeout before computing block should be bigger.