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From: Nye Liu <nye@...>
Sent: Thursday, October 24, 2019 7:48 PM
To: Siddharth Jain <siddjain@...>; David Enyeart <enyeart@...>
Cc: fabric@... <fabric@...>
Subject: Re: [Hyperledger Fabric] How to get inside docker container and debug code with breakpoints?
Can you post your configtx yaml?
I can take a peek as well.
On 10/24/2019 7:45 PM, Siddharth Jain wrote:
Thanks Dave for opening the bug. Now that's what a helpful response is.
Close... some key within the [Group] config has an illegal character. You can see the valid characters here:
I suspect it is this one - keys must "Contain only ASCII alphanumerics, dots '.', dashes '-'"
Unfortunately it looks like the underlying root cause is not printed in the error message. I've opened a bug on your behalf so that the next person to hit it gets a better error message:
For cryptic errors, please do open bugs so that they can get improved.
Liu" ---10/24/2019 08:46:00 PM---I might also add that in this case, the error message and backtrace are actually extremely informat
From: "Nye Liu"
Date: 10/24/2019 08:46 PM
Subject: [EXTERNAL] Re: [Hyperledger Fabric] How to get inside docker container and debug code with breakpoints?
Sent by: fabric@...
I might also add that in this case, the error message and backtrace are actually extremely informative
"Illegal characters in key: [Group]"
I'm guessing it doesn't like the brackets in "[Group]"
Tells you exactly where the "Failed validating bootstrap block" problem is.
A debugger would absolutely not tell you much more.
On 10/24/2019 5:29 PM, Siddharth Jain wrote:
Very often I keep into running cryptic errors with Fabric. E.g., today I ran into this:
2019-10-25 00:20:00.915 UTC [orderer.common.server] Start -> PANI 003 Failed validating bootstrap block: initializing configtx manager failed: error converting config to map: Illegal characters in key: [Group]
panic: Failed validating bootstrap block: initializing configtx manager failed: error converting config to map: Illegal characters in key: [Group]
goroutine 1 [running]:
github.com/hyperledger/fabric/vendor/go.uber.org/zap/zapcore.(*CheckedEntry).Write(0xc000434a50, 0x0, 0x0, 0x0)
github.com/hyperledger/fabric/vendor/go.uber.org/zap.(*SugaredLogger).log(0xc00000e1e8, 0xc0002c0c04, 0x103a88e, 0x25, 0xc000413d10, 0x1, 0x1, 0x0, 0x0, 0x0)
github.com/hyperledger/fabric/vendor/go.uber.org/zap.(*SugaredLogger).Panicf(0xc00000e1e8, 0x103a88e, 0x25, 0xc000413d10, 0x1, 0x1)
github.com/hyperledger/fabric/common/flogging.(*FabricLogger).Panicf(0xc00000e1f0, 0x103a88e, 0x25, 0xc000413d10, 0x1, 0x1)
github.com/hyperledger/fabric/orderer/common/server.Start(0x1018e03, 0x5, 0xc000437200)
With these kinds of errors, its not possible to know what caused it just by looking at trace above and I am helpless what to do next. So I am wondering if there is a way for me to log into the container and be able to debug with a debugger
(like the way we could do using gdb or ddd)? Would appreciate step by step instructions please which can be followed by a poor man like me (not hand wavy answers)