Hi,

I'm testing an eloipool setup with two bitcoind backends (0.8.eligius branch), one configured with priority 0, one with priority 1. Both bitcoinds appear to be reasonably well connected with other peers. From time to time, I see the following in my logs:

Quote

2013-06-07 05:16:52,179 merkleMaker ERROR Upstream 'primary' rejected proposed block from 'secondary': stale-prevblk
2013-06-07 05:16:52,389 merkleMaker INFO New block: 00000000000000e4250875295568b720fbf9ab87d885fd2d4a6ea76c24d48a9b (height: 240205; bits: 1a011337)
2013-06-07 05:16:52,391 merkleMaker WARNING Change from height 240206->240205; no longpoll merkleroots available!
2013-06-07 05:16:52,402 JSONRPCServer INFO Nobody to longpoll
2013-06-07 05:16:55,974 merkleMaker INFO New block: 000000000000001ae26a52e6724f9608bb98580fd668b413d13451db517d17a6 (height: 240206; bits: 1a011337)
2013-06-07 05:16:55,976 JSONRPCServer INFO Nobody to longpoll
2013-06-07 05:16:56,636 merkleMaker ERROR Upstream 'primary' rejected proposed block from 'secondary': stale-prevblk
2013-06-07 05:16:56,961 merkleMaker INFO New block: 00000000000000e4250875295568b720fbf9ab87d885fd2d4a6ea76c24d48a9b (height: 240205; bits: 1a011337)
2013-06-07 05:16:56,963 merkleMaker WARNING Change from height 240206->240205; no longpoll merkleroots available!
2013-06-07 05:16:57,002 JSONRPCServer INFO Nobody to longpoll
2013-06-07 05:17:00,766 JSONRPCServer INFO Nobody to longpoll
2013-06-07 05:17:01,081 merkleMaker INFO New block: 000000000000001ae26a52e6724f9608bb98580fd668b413d13451db517d17a6 (height: 240206; bits: 1a011337)
2013-06-07 05:17:01,082 JSONRPCServer INFO Nobody to longpoll
2013-06-07 05:17:01,458 merkleMaker ERROR Upstream 'primary' rejected proposed block from 'secondary': stale-prevblk
2013-06-07 05:17:01,601 merkleMaker INFO New block: 00000000000000e4250875295568b720fbf9ab87d885fd2d4a6ea76c24d48a9b (height: 240205; bits: 1a011337)
2013-06-07 05:17:01,601 merkleMaker WARNING Change from height 240206->240205; no longpoll merkleroots available!
2013-06-07 05:17:01,632 JSONRPCServer INFO Nobody to longpoll
2013-06-07 05:17:05,780 JSONRPCServer INFO Nobody to longpoll
2013-06-07 05:17:06,129 merkleMaker INFO New block: 000000000000001ae26a52e6724f9608bb98580fd668b413d13451db517d17a6 (height: 240206; bits: 1a011337)
2013-06-07 05:17:06,131 JSONRPCServer INFO Nobody to longpoll
2013-06-07 05:17:07,156 merkleMaker ERROR Upstream 'primary' rejected proposed block from 'secondary': stale-prevblk
2013-06-07 05:17:07,374 merkleMaker INFO New block: 00000000000000e4250875295568b720fbf9ab87d885fd2d4a6ea76c24d48a9b (height: 240205; bits: 1a011337)
2013-06-07 05:17:07,488 merkleMaker WARNING Change from height 240206->240205; no longpoll merkleroots available!
2013-06-07 05:17:07,496 JSONRPCServer INFO Nobody to longpoll
2013-06-07 05:17:10,798 JSONRPCServer INFO Nobody to longpoll
2013-06-07 05:17:11,272 merkleMaker INFO New block: 000000000000001ae26a52e6724f9608bb98580fd668b413d13451db517d17a6 (height: 240206; bits: 1a011337)
2013-06-07 05:17:11,275 JSONRPCServer INFO Nobody to longpoll
2013-06-07 05:17:11,882 merkleMaker ERROR Upstream 'primary' rejected proposed block from 'secondary': stale-prevblk
2013-06-07 05:17:12,031 merkleMaker INFO New block: 00000000000000e4250875295568b720fbf9ab87d885fd2d4a6ea76c24d48a9b (height: 240205; bits: 1a011337)
2013-06-07 05:17:12,034 merkleMaker WARNING Change from height 240206->240205; no longpoll merkleroots available!

It looks like eloipool is getting conflicting information from the two bitcoinds about which is the current block (for about 30 seconds, until whichever one is slower has found out about the new block). I thought that the priorities should take care of that (and for good measure I also adjusted the weight, but that has made no difference) - has anyone else seen this kind of thing? What I really want is for eloipool to always use the local bitcoind unless that one is down for some reason. Has anyone had the same problem? I'm pretty sure I'm doing something wrong here... but what? Any hints appreciated.

Holger

holgerr

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