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Add a framework for detecting databases that need updating.

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Put transaction from account_tx command in transaction application sequence.
CAUTION: This modifies your databases and will cause a delay on your next startup.
This commit is contained in:
JoelKatz
2013-04-01 19:03:28 -07:00
parent 1725b5df48
commit 5cc9314d03
12 changed files with 130 additions and 4 deletions
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108
src/cpp/ripple/UpdateTables.cpp Normal file
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@@ -0,0 +1,108 @@
#include "Application.h"
#include "Log.h"
static std::vector<std::string> getSchema(DatabaseCon* dbc, const std::string& dbName)
{
std::vector<std::string> schema;
std::string sql = "SELECT sql FROM sqlite_master WHERE tbl_name='";
sql += dbName;
sql += "';";
SQL_FOREACH(dbc->getDB(), sql)
{
dbc->getDB()->getStr("sql", sql);
schema.push_back(sql);
}
return schema;
}
static bool schemaHas(DatabaseCon* dbc, const std::string& dbName, int line, const std::string& content)
{
std::vector<std::string> schema = getSchema(dbc, dbName);
if (schema.size() <= line)
{
Log(lsFATAL) << "Schema for " << dbName << " has too few lines";
throw std::runtime_error("bad schema");
}
return schema[line].find(content) != std::string::npos;
}
static void addTxnSeqField()
{
if (schemaHas(theApp->getTxnDB(), "AccountTransactions", 0, "TxnSeq"))
return;
Log(lsWARNING) << "Transaction sequence field is missing";
Database* db = theApp->getTxnDB()->getDB();
std::vector< std::pair<uint256, int> > txIDs;
txIDs.reserve(300000);
Log(lsINFO) << "Parsing transactions";
int i = 0;
uint256 transID;
SQL_FOREACH(db, "SELECT TransID,TxnMeta FROM Transactions;")
{
std::vector<unsigned char> rawMeta;
int metaSize = 2048;
rawMeta.resize(metaSize);
metaSize = db->getBinary("TxnMeta", &*rawMeta.begin(), rawMeta.size());
if (metaSize > rawMeta.size())
{
rawMeta.resize(metaSize);
db->getBinary("TxnMeta", &*rawMeta.begin(), rawMeta.size());
}
else rawMeta.resize(metaSize);
std::string tid;
db->getStr("TransID", tid);
transID.SetHex(tid, true);
if (rawMeta.size() == 0)
{
txIDs.push_back(std::make_pair(transID, -1));
Log(lsINFO) << "No metadata for " << transID;
}
else
{
TransactionMetaSet m(transID, 0, rawMeta);
txIDs.push_back(std::make_pair(transID, m.getIndex()));
}
if ((++i % 1000) == 0)
Log(lsINFO) << i << " transactions read";
}
Log(lsINFO) << "All " << i << " transactions read";
db->executeSQL("BEGIN TRANSACTION;");
Log(lsINFO) << "Dropping old index";
db->executeSQL("DROP INDEX AcctTxIndex;");
Log(lsINFO) << "Altering table";
db->executeSQL("ALTER TABLE AccountTransactions ADD COLUMN TxnSeq INTEGER;");
typedef std::pair<uint256, int> u256_int_pair_t;
boost::format fmt("UPDATE AccountTransactions SET TxnSeq = %d WHERE TransID = '%s';");
i = 0;
BOOST_FOREACH(u256_int_pair_t& t, txIDs)
{
db->executeSQL(boost::str(fmt % t.second % t.first.GetHex()));
if ((++i % 1000) == 0)
Log(lsINFO) << i << " transactions updated";
}
db->executeSQL("CREATE INDEX AcctTxIndex ON AccountTransactions(Account, LedgerSeq, TxnSeq, TransID);");
db->executeSQL("END TRANSACTION;");
}
void Application::updateTables()
{ // perform any needed table updates
assert(schemaHas(theApp->getTxnDB(), "AccountTransactions", 0, "TransID"));
assert(!schemaHas(theApp->getTxnDB(), "AccountTransactions", 0, "foobar"));
addTxnSeqField();
}