<p>My bitcoind client that runs on testnet has started returning a lot of errors today. It has been doing so for a few of hours (as of 2014-08-29 9:50 UTC).</p>

<p>When I call it via RPC, I get the following response on ALL requests</p>

<pre><code>{
  "result":null,
  "error": {
    "code":-2,
    "message":"Safe mode: Warning: The network does not appear to fully agree! Some miners appear to be experiencing issues."},
    "id":"1"
  }
}
</code></pre>

<p>It doesn't seem to be downloading any new blocks. It seems that I'm not the only one who's affected. As of now, <a href="http://tbtc.blockr.io/" rel="nofollow">http://tbtc.blockr.io/</a> is also stuck on blocks that are almost 5 hours old.</p>

<p>The version of bitcoind I use is 0.9.2.1, and the debug log says:</p>

<pre><code>2014-08-29 05:11:59 ProcessBlock: ORPHAN BLOCK 0, prev=0000000000000e819b253066739275290fb4274b580bf62fbd279c518e6e2ebd
2014-08-29 05:11:59 ProcessBlock: ORPHAN BLOCK 1, prev=0000000000000e70d898fa12f328b9ee2d97912e9a495fc80eaeeb781096cadf
2014-08-29 05:11:59 ProcessBlock: ORPHAN BLOCK 2, prev=000000000000256194246bdabb62d3b50e2c309217258b17c543d13ec839367c
2014-08-29 05:12:00 CheckForkWarningConditions: Warning: Large valid fork found
  forking the chain at height 277766 (000000009cf297bc2a9610af823b49fc1d98e001239e99204c3c410e1ad3fe54)
  lasting to height 277767 (0000000000000e819b253066739275290fb4274b580bf62fbd279c518e6e2ebd).
Chain state database corruption likely.
2014-08-29 05:12:00 UpdateTip: new best=00000000735de11454d7de10a71a14e9695135f59b70a4eb906b1107df842270  height=277770  log2_work=61.959615  tx=2398741  date=2014-08-29 05:20:26 progress=1.000001
2014-08-29 05:12:00 UpdateTip: new best=00000000e9cc8d1bea3894d11cd4bacf4099dac3b644cb4f39b4ba3ad89ed2f8  height=277769  log2_work=61.959615  tx=2398732  date=2014-08-29 05:00:09 progress=0.999999
2014-08-29 05:12:00 UpdateTip: new best=00000000d553cd36cc43b3d1255ec395c05e1d4ad730178cd987e960931399ae  height=277768  log2_work=61.959615  tx=2398721  date=2014-08-29 04:39:40 progress=0.999997
2014-08-29 05:12:00 UpdateTip: new best=0000000000000f46520ca51be43443905945d2db5b513f35c2283c2d95a41077  height=277767  log2_work=61.959615  tx=2398683  date=2014-08-29 04:19:31 progress=0.999995
2014-08-29 05:12:00 UpdateTip: new best=000000009cf297bc2a9610af823b49fc1d98e001239e99204c3c410e1ad3fe54  height=277766  log2_work=61.959004  tx=2398667  date=2014-08-29 04:16:35 progress=0.999995
2014-08-29 05:12:00 UpdateTip: new best=0000000000000e819b253066739275290fb4274b580bf62fbd279c518e6e2ebd  height=277767  log2_work=61.959615  tx=2398670  date=2014-08-29 04:15:08 progress=0.999995
2014-08-29 05:12:00 UpdateTip: new best=0000000000000e70d898fa12f328b9ee2d97912e9a495fc80eaeeb781096cadf  height=277768  log2_work=61.960226  tx=2398674  date=2014-08-29 04:24:20 progress=0.999996
2014-08-29 05:12:00 CheckForkWarningConditions: Warning: Large valid fork found
  forking the chain at height 277766 (000000009cf297bc2a9610af823b49fc1d98e001239e99204c3c410e1ad3fe54)
  lasting to height 277767 (0000000000000e819b253066739275290fb4274b580bf62fbd279c518e6e2ebd).
Chain state database corruption likely.
</code></pre>

<p>What does this message mean? How is a fork of a single block a "large valid fork"? Why is this that this seems to completely freeze bitcoind? How can I fix it?</p>

<bitcoind><json-rpc>
What does "Safe mode: Warning: The network does not appear to fully agree! Some miners appear to be experiencing issues." mean?
LordOfThePigs
# What does "Safe mode: Warning: The network does not appear to fully agree! Some miners appear to be experiencing issues." mean?

(Asked by: username_0 on 2014-08-29)

My bitcoind client that runs on testnet has started returning a lot of errors today. It has been doing so for a few of hours (as of 2014-08-29 9:50 UTC).
When I call it via RPC, I get the following response on ALL requests
{
  "result":null,
  "error": {
    "code":-2,
    "message":"Safe mode: Warning: The network does not appear to fully agree! Some miners appear to be experiencing issues."},
    "id":"1"
  }
}

It doesn't seem to be downloading any new blocks. It seems that I'm not the only one who's affected. As of now, http://tbtc.blockr.io/ is also stuck on blocks that are almost 5 hours old.
The version of bitcoind I use is 0.9.2.1, and the debug log says:
2014-08-29 05:11:59 ProcessBlock: ORPHAN BLOCK 0, prev=0000000000000e819b253066739275290fb4274b580bf62fbd279c518e6e2ebd
2014-08-29 05:11:59 ProcessBlock: ORPHAN BLOCK 1, prev=0000000000000e70d898fa12f328b9ee2d97912e9a495fc80eaeeb781096cadf
2014-08-29 05:11:59 ProcessBlock: ORPHAN BLOCK 2, prev=000000000000256194246bdabb62d3b50e2c309217258b17c543d13ec839367c
2014-08-29 05:12:00 CheckForkWarningConditions: Warning: Large valid fork found
  forking the chain at height 277766 (000000009cf297bc2a9610af823b49fc1d98e001239e99204c3c410e1ad3fe54)
  lasting to height 277767 (0000000000000e819b253066739275290fb4274b580bf62fbd279c518e6e2ebd).
Chain state database corruption likely.
2014-08-29 05:12:00 UpdateTip: new best=00000000735de11454d7de10a71a14e9695135f59b70a4eb906b1107df842270  height=277770  log2_work=61.959615  tx=2398741  date=2014-08-29 05:20:26 progress=1.000001
2014-08-29 05:12:00 UpdateTip: new best=00000000e9cc8d1bea3894d11cd4bacf4099dac3b644cb4f39b4ba3ad89ed2f8  height=277769  log2_work=61.959615  tx=2398732  date=2014-08-29 05:00:09 progress=0.999999
2014-08-29 05:12:00 UpdateTip: new best=00000000d553cd36cc43b3d1255ec395c05e1d4ad730178cd987e960931399ae  height=277768  log2_work=61.959615  tx=2398721  date=2014-08-29 04:39:40 progress=0.999997
2014-08-29 05:12:00 UpdateTip: new best=0000000000000f46520ca51be43443905945d2db5b513f35c2283c2d95a41077  height=277767  log2_work=61.959615  tx=2398683  date=2014-08-29 04:19:31 progress=0.999995
2014-08-29 05:12:00 UpdateTip: new best=000000009cf297bc2a9610af823b49fc1d98e001239e99204c3c410e1ad3fe54  height=277766  log2_work=61.959004  tx=2398667  date=2014-08-29 04:16:35 progress=0.999995
2014-08-29 05:12:00 UpdateTip: new best=0000000000000e819b253066739275290fb4274b580bf62fbd279c518e6e2ebd  height=277767  log2_work=61.959615  tx=2398670  date=2014-08-29 04:15:08 progress=0.999995
2014-08-29 05:12:00 UpdateTip: new best=0000000000000e70d898fa12f328b9ee2d97912e9a495fc80eaeeb781096cadf  height=277768  log2_work=61.960226  tx=2398674  date=2014-08-29 04:24:20 progress=0.999996
2014-08-29 05:12:00 CheckForkWarningConditions: Warning: Large valid fork found
  forking the chain at height 277766 (000000009cf297bc2a9610af823b49fc1d98e001239e99204c3c410e1ad3fe54)
  lasting to height 277767 (0000000000000e819b253066739275290fb4274b580bf62fbd279c518e6e2ebd).
Chain state database corruption likely.

What does this message mean? How is a fork of a single block a "large valid fork"? Why is this that this seems to completely freeze bitcoind? How can I fix it?

**Tags:** bitcoind, json-rpc


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## 0 answers

