command line: bitcoin-cli verifychain

[22bits]

Running on Ubuntu not sure how to pass parameters to the bitcoin-cli -verifychain command.  Works fine with curl or programmatic interface, but not sure how to just type it in at the prompt and have it work. 

Code:

$bitcoin-cli verifychain <how do I put parameters here?>

I see it takes two parameters which I would like to pass in on the command line.

[nc50lc]

AFAIK it should just take the two positional arg's numeric values right after the command, each separated by whitespace.

You can also try to use --named arg and specify the command parameters' names.

Like for example:

$bitcoin-cli --named verifychain checklevel=1 nblocks=0

[22bits]

OK that works great.  When I run the verifychain with any parameter it always returns true, except when nblocks=0 which specifies it should read all blocks.  When nblocks=0 it always returns false.  Also larger numbers return false.  Would it be some kind of timeout issue?

[22bits]

I am trying to track this down.  getblockchaininfo looks good.   verifychain with higher block counts returns false with error: null.  Not really sure what the cause might be.  sample run for 4, 500.
response follows:

Code:

{"result":false,"error":null,"id":2}

[nc50lc]

Check you recent 'debug.log' entries for more detailed result. (located in bitcoin datadir)

The lines related to verifychain command should start from "Verifying last <N> blocks at level <N>" line to "Verification: <message>" result.
The "nBlocks" and "verification level" should match the command that returned that 'error: null' response.

[22bits]

Thank you, found the pertinent info in the debug.log.