database/mariadb-columnstore-engine
1
0
Fork 0
mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-07-27 21:01:50 +03:00
Code Activity

MCOL-769 Add command to get the uncommitted lbids

Browse Source 
We need this to be able to commit them
This commit is contained in:
Andrew Hutchings
2017-06-16 12:22:53 +01:00
parent cb52f1a712
commit 7501cfc1f0
3 changed files with 96 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

93
versioning/BRM/masterdbrmnode.cpp
View File

@ -379,6 +379,7 @@ void MasterDBRMNode::msgProcessor()
case SET_SYSTEM_STATE: doSetSystemState(msg, p); continue;
case CLEAR_SYSTEM_STATE: doClearSystemState(msg, p); continue;
case SM_RESET: doSessionManagerReset(msg, p); continue;
case GET_UNCOMMITTED_LBIDS: doGetUncommittedLbids(msg, p); continue;
}
/* Process TableLock calls */
@ -1292,6 +1293,98 @@ void MasterDBRMNode::doSIDTIDMap(ByteStream &msg, ThreadParams *p)
catch (...) { }
}
void MasterDBRMNode::doGetUncommittedLbids(ByteStream &msg, ThreadParams *p)
{
ByteStream reply;
vector<LBID_t> lbidList;
VSS vss;
ExtentMap em;
bool locked = false;
vector<LBID_t>::iterator lbidIt;
typedef pair<int64_t, int64_t> range_t;
range_t range;
vector<range_t> ranges;
vector<range_t>::iterator rangeIt;
ByteStream::byte cmd;
ByteStream::quadbyte transID;
msg >> cmd;
msg >> transID;
try {
vss.lock(VSS::READ);
locked = true;
// Get a full list of uncommitted LBIDs related to this transactin.
vss.getUncommittedLBIDs(transID, lbidList);
vss.release(VSS::READ);
locked = false;
if(lbidList.size() > 0) {
// Sort the vector.
std::sort<vector<LBID_t>::iterator>(lbidList.begin(), lbidList.end());
// Get the LBID range for the first block in the list.
lbidIt = lbidList.begin();
if (em.lookup(*lbidIt, range.first, range.second) < 0) {
reply.reset();
reply << (uint8_t) ERR_FAILURE;
try {
p->sock->write(reply);
}
catch (...) { }
return;
}
ranges.push_back(range);
// Loop through the LBIDs and add the new ranges.
++lbidIt;
while(lbidIt != lbidList.end()) {
if (*lbidIt > range.second) {
if (em.lookup(*lbidIt, range.first, range.second) < 0) {
reply.reset();
reply << (uint8_t) ERR_FAILURE;
try {
p->sock->write(reply);
}
catch (...) { }
return;
}
ranges.push_back(range);
}
++lbidIt;
}
// Reset the lbidList and return only the first LBID in each extent that was changed
// in the transaction.
lbidList.clear();
for (rangeIt = ranges.begin(); rangeIt != ranges.end(); rangeIt++) {
lbidList.push_back(rangeIt->first);
}
}
reply << (uint8_t) ERR_OK;
serializeInlineVector(reply, lbidList);
try {
p->sock->write(reply);
}
catch (...) { }
return;
}
catch (exception &e) {
if (locked)
vss.release(VSS::READ);
reply.reset();
reply << (uint8_t) ERR_FAILURE;
try {
p->sock->write(reply);
}
catch (...) { }
return;
}
}
void MasterDBRMNode::doGetUniqueUint32(ByteStream &msg, ThreadParams *p)
{
ByteStream reply;