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* permit persons to whom the Software is furnished to do so, subject to
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*
* The above copyright notice and this permission notice shall be
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package txnIdSelfCheck.procedures;
import org.voltdb.SQLStmt;
import org.voltdb.VoltProcedure;
import org.voltdb.VoltTable;
import org.voltdb.VoltTableRow;
import org.voltdb.utils.MiscUtils;
public class UpdateBaseProc extends VoltProcedure {
public final SQLStmt d_getCount = new SQLStmt(
"SELECT count(*) FROM dimension where cid = ?;");
// join partitioned tbl to replicated tbl. This enables detection of some replica faults.
public final SQLStmt p_getCIDData = new SQLStmt(
"SELECT * FROM partitioned p INNER JOIN dimension d ON p.cid=d.cid WHERE p.cid = ? ORDER BY cid, rid desc;");
public final SQLStmt p_cleanUp = new SQLStmt(
"DELETE FROM partitioned WHERE cid = ? and cnt < ?;");
public final SQLStmt p_getAdhocData = new SQLStmt(
"SELECT * FROM adhocp ORDER BY ts DESC, id LIMIT 1");
public final SQLStmt p_insert = new SQLStmt(
"INSERT INTO partitioned VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?);");
public final SQLStmt p_export = new SQLStmt(
"INSERT INTO partitioned_export VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?);");
// PLEASE SEE ReplicatedUpdateBaseProc for the replicated procs
// that can't be listed here (or SP procs wouldn't compile)
public long run() {
return 0; // never called in base procedure
}
protected VoltTable[] doWork(SQLStmt getCIDData, SQLStmt cleanUp, SQLStmt insert, SQLStmt export, SQLStmt getAdHocData,
byte cid, long rid, byte[] value, byte shouldRollback)
{
voltQueueSQL(getCIDData, cid);
voltQueueSQL(getAdHocData);
voltQueueSQL(d_getCount, cid);
VoltTable[] results = voltExecuteSQL();
VoltTable data = results[0];
VoltTable adhoc = results[1];
VoltTable dim = results[2];
final long txnid = getUniqueId();
final long ts = getTransactionTime().getTime();
long prevtxnid = 0;
long prevrid = 0;
long cnt = 0;
// read data modified by AdHocMayhemThread for later insertion
final long adhocInc = adhoc.getRowCount() > 0 ? adhoc.fetchRow(0).getLong("inc") : 0;
final long adhocJmp = adhoc.getRowCount() > 0 ? adhoc.fetchRow(0).getLong("jmp") : 0;
// compute the cheesy checksum of all of the table's contents based on
// this cid to subsequently store in the new row
final long cidallhash = MiscUtils.cheesyBufferCheckSum(data.getBuffer());
// get the most recent row's data
int rowCount = data.getRowCount();
if (rowCount != 0) {
VoltTableRow row = data.fetchRow(0);
cnt = row.getLong("cnt") + 1;
prevtxnid = row.getLong("txnid");
prevrid = row.getLong("rid");
}
validateCIDData(data, getClass().getName());
// check the rids monotonically increase
if (prevrid >= rid) {
throw new VoltAbortException(getClass().getName() +
" previous rid " + prevrid +
" >= than current rid " + rid +
" for cid " + cid);
}
voltQueueSQL(insert, txnid, prevtxnid, ts, cid, cidallhash, rid, cnt, adhocInc, adhocJmp, new byte[0]);
voltQueueSQL(export, txnid, prevtxnid, ts, cid, cidallhash, rid, cnt, adhocInc, adhocJmp, new byte[0]);
voltQueueSQL(cleanUp, cid, cnt - 10);
voltQueueSQL(getCIDData, cid);
assert dim.getRowCount() == 1;
VoltTable[] retval = voltExecuteSQL();
// Verify that our update happened. The client is reporting data errors on this validation
// not seen by the server, hopefully this will bisect where they're occuring.
data = retval[3];
validateCIDData(data, getClass().getName());
if (shouldRollback != 0) {
throw new VoltAbortException("EXPECTED ROLLBACK");
}
return retval;
}
@SuppressWarnings("deprecation")
protected VoltTable[] doWorkInProcAdHoc(byte cid, long rid, byte[] value, byte shouldRollback) {
voltQueueSQLExperimental("SELECT * FROM replicated r INNER JOIN dimension d ON r.cid=d.cid WHERE r.cid = ? ORDER BY cid, rid desc;", cid);
voltQueueSQLExperimental("SELECT * FROM adhocr ORDER BY ts DESC, id LIMIT 1");
VoltTable[] results = voltExecuteSQL();
VoltTable data = results[0];
VoltTable adhoc = results[1];
final long txnid = getUniqueId();
final long ts = getTransactionTime().getTime();
long prevtxnid = 0;
long prevrid = 0;
long cnt = 0;
// read data modified by AdHocMayhemThread for later insertion
final long adhocInc = adhoc.getRowCount() > 0 ? adhoc.fetchRow(0).getLong("inc") : 0;
final long adhocJmp = adhoc.getRowCount() > 0 ? adhoc.fetchRow(0).getLong("jmp") : 0;
// compute the cheesy checksum of all of the table's contents based on
// this cid to subsequently store in the new row
final long cidallhash = MiscUtils.cheesyBufferCheckSum(data.getBuffer());
// get the most recent row's data
int rowCount = data.getRowCount();
if (rowCount != 0) {
VoltTableRow row = data.fetchRow(0);
cnt = row.getLong("cnt") + 1;
prevtxnid = row.getLong("txnid");
prevrid = row.getLong("rid");
}
validateCIDData(data, getClass().getName());
// check the rids monotonically increase
if (prevrid >= rid) {
throw new VoltAbortException(getClass().getName() +
" previous rid " + prevrid +
" >= than current rid " + rid +
" for cid " + cid);
}
voltQueueSQLExperimental("INSERT INTO replicated VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?);", txnid, prevtxnid, ts, cid, cidallhash, rid, cnt, adhocInc, adhocJmp, new byte[0]);
voltQueueSQLExperimental("DELETE FROM replicated WHERE cid = ? and cnt < ?;", cid, cnt - 10);
voltQueueSQLExperimental("SELECT * FROM replicated r INNER JOIN dimension d ON r.cid=d.cid WHERE r.cid = ? ORDER BY cid, rid desc;", cid);
VoltTable[] retval = voltExecuteSQL();
// Verify that our update happened. The client is reporting data errors on this validation
// not seen by the server, hopefully this will bisect where they're occuring.
data = retval[2];
validateCIDData(data, getClass().getName());
if (shouldRollback != 0) {
throw new VoltAbortException("EXPECTED ROLLBACK");
}
return retval;
}
public static void validateCIDData(VoltTable data, String callerId) {
// empty tables are lamely valid
if (data.getRowCount() == 0) return;
byte cid = (byte) data.fetchRow(0).getLong("cid");
data.resetRowPosition();
long prevCnt = 0;
while (data.advanceRow()) {
// check that the inner join of partitioned and replicated tables
// produce the expected result
byte desc = (byte) data.getLong("desc");
if (desc != cid) {
throw new VoltAbortException(callerId +
" desc value " + desc +
" not equal to cid value " + cid);
}
// make sure all cnt values are consecutive
long cntValue = data.getLong("cnt");
if ((prevCnt > 0) && ((prevCnt - 1) != cntValue)) {
throw new VoltAbortException(callerId +
" cnt values are not consecutive" +
" for cid " + cid + ". Got " + cntValue +
", prev was: " + prevCnt);
}
prevCnt = cntValue;
}
}
}