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MCOL-3296 Add logging when a dml is blocked because of another dml on the same table

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This commit is contained in:
David Hall
2019-05-10 10:04:57 -05:00
parent f2d8a33ee5
commit f98097673f
2 changed files with 44 additions and 21 deletions
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12
dmlproc/dmlprocessor.h
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@ -171,12 +171,12 @@ private:
// Used to serialize operations because the VSS can't handle inserts
// or updates on the same block.
// When an Insert, Update or Delete command arrives, we look here
// for the table oid. If found, wait until it is no onger here.
// for the table oid. If found, wait until it is no longer here.
// If this transactionID (SCN) is < the transactionID in the table, don't delay
// and hope for the best, as we're already out of order.
// When the VSS is engineered to handle transactions out of order, all MCOL-140
// code is to be removed.
int synchTableAccess();
int synchTableAccess(dmlpackage::CalpontDMLPackage* dmlPackage);
int releaseTableAccess();
int forceReleaseTableAccess();
typedef iterable_queue<execplan::CalpontSystemCatalog::SCN> tableAccessQueue_t;
@ -192,22 +192,22 @@ public:
{
public:
SynchTable() : fphp(NULL) {};
SynchTable(PackageHandler* php)
SynchTable(PackageHandler* php, dmlpackage::CalpontDMLPackage* dmlPackage)
{
setPackage(php);
setPackage(php, dmlPackage);
}
~SynchTable()
{
if (fphp)
fphp->releaseTableAccess();
}
bool setPackage(PackageHandler* php)
bool setPackage(PackageHandler* php, dmlpackage::CalpontDMLPackage* dmlPackage)
{
if (fphp)
fphp->releaseTableAccess();
fphp = php;
if (fphp)
fphp->synchTableAccess();
fphp->synchTableAccess(dmlPackage);
return true;
}
private: