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Merge #12659: Improve Fatal LevelDB Log Messages

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f4b68b3f8f Log fatal LevelDB errors more verbosely (Evan Klitzke)

Pull request description:

  The `leveldb::Status` class logs the filename of corrupted files, which might be useful when looking at error reports from usres. In theory this is already logged via the `LogPrintf()` statement in `HandleError()`, but that may not always be close to where the final error message is logged, e.g. see https://github.com/bitcoin/bitcoin/issues/11355#issuecomment-340340542 where the log trace provided by the user does not contain that information (and other user comments in the same issue).

  This also adds a log message instructing the user to run the process with `-debug=leveldb`, which provides much more verbose error messages about LevelDB internals. This may not really help much, but improving the error messages here can't hurt.

Tree-SHA512: bbdc52f0ae50e77e4d74060f9f77c6a0b10d5fad1da371eec1ad38a499af5fde3a3b34dd915e721f6bbe779a1f9693ab04fd9cdbcfa95c28f2979b4c0df181c9
This commit is contained in:
MarcoFalke 2018-03-13 12:16:26 -04:00
commit 3d16f58153
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1 changed files with 4 additions and 8 deletions
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12
src/dbwrapper.cpp
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@ -218,14 +218,10 @@ void HandleError(const leveldb::Status& status)
{
if (status.ok())
return;
LogPrintf("%s\n", status.ToString());
if (status.IsCorruption())
throw dbwrapper_error("Database corrupted");
if (status.IsIOError())
throw dbwrapper_error("Database I/O error");
if (status.IsNotFound())
throw dbwrapper_error("Database entry missing");
throw dbwrapper_error("Unknown database error");
const std::string errmsg = "Fatal LevelDB error: " + status.ToString();
LogPrintf("%s\n", errmsg);
LogPrintf("You can use -debug=leveldb to get more complete diagnostic messages\n");
throw dbwrapper_error(errmsg);
}
const std::vector<unsigned char>& GetObfuscateKey(const CDBWrapper &w)