acquireLock(region, key, lids);
ImmutableBytesPtr cacheKey = new ImmutableBytesPtr(key);
List<ImmutableBytesPtr> invalidateList = new ArrayList<ImmutableBytesPtr>();
invalidateList.add(cacheKey);
Map<ImmutableBytesPtr,PTable> metaDataCache = GlobalCache.getInstance(this.getEnvironment()).getMetaDataCache();
PTable table = metaDataCache.get(cacheKey);
if (logger.isDebugEnabled()) {
if (table == null) {
logger.debug("Table " + Bytes.toStringBinary(key) + " not found in cache. Will build through scan");
} else {
logger.debug("Table " + Bytes.toStringBinary(key) + " found in cache with timestamp " + table.getTimeStamp() + " seqNum " + table.getSequenceNumber());
}
}
// Get client timeStamp from mutations
long clientTimeStamp = MetaDataUtil.getClientTimeStamp(tableMetadata);
if (table == null && (table = buildTable(key, cacheKey, region, HConstants.LATEST_TIMESTAMP)) == null) {
// if not found then call newerTableExists and add delete marker for timestamp found
if (buildDeletedTable(key, cacheKey, region, clientTimeStamp) != null) {
return new MetaDataMutationResult(MutationCode.NEWER_TABLE_FOUND, EnvironmentEdgeManager.currentTimeMillis(), null);
}
return new MetaDataMutationResult(MutationCode.TABLE_NOT_FOUND, EnvironmentEdgeManager.currentTimeMillis(), null);
}
if (table.getTimeStamp() >= clientTimeStamp) {
return new MetaDataMutationResult(MutationCode.NEWER_TABLE_FOUND, EnvironmentEdgeManager.currentTimeMillis(), table);
} else if (isTableDeleted(table)) {
return new MetaDataMutationResult(MutationCode.TABLE_NOT_FOUND, EnvironmentEdgeManager.currentTimeMillis(), null);
}
long expectedSeqNum = MetaDataUtil.getSequenceNumber(tableMetadata) - 1; // lookup TABLE_SEQ_NUM in tableMetaData
if (logger.isDebugEnabled()) {
logger.debug("For table " + Bytes.toStringBinary(key) + " expecting seqNum " + expectedSeqNum + " and found seqNum " + table.getSequenceNumber() + " with " + table.getColumns().size() + " columns: " + table.getColumns());
}
if (expectedSeqNum != table.getSequenceNumber()) {
if (logger.isDebugEnabled()) {
logger.debug("For table " + Bytes.toStringBinary(key) + " returning CONCURRENT_TABLE_MUTATION due to unexpected seqNum");
}
return new MetaDataMutationResult(MutationCode.CONCURRENT_TABLE_MUTATION, EnvironmentEdgeManager.currentTimeMillis(), table);
}
// Disallow mutation of an index table
PTableType type = table.getType();
if (type == PTableType.INDEX) {
return new MetaDataMutationResult(MutationCode.UNALLOWED_TABLE_MUTATION, EnvironmentEdgeManager.currentTimeMillis(), null);
}
result = mutator.updateMutation(table, rowKeyMetaData, tableMetadata, region, invalidateList, lids);
if (result != null) {
return result;
}
region.mutateRowsWithLocks(tableMetadata, Collections.<byte[]>emptySet());
// Invalidate from cache
for (ImmutableBytesPtr invalidateKey : invalidateList) {
PTable invalidatedTable = metaDataCache.remove(invalidateKey);
if (logger.isDebugEnabled()) {
if (invalidatedTable == null) {
logger.debug("Attempted to invalidated table key " + Bytes.toStringBinary(cacheKey.get(),cacheKey.getOffset(),cacheKey.getLength()) + " but found no cached table");
} else {
logger.debug("Invalidated table key " + Bytes.toStringBinary(cacheKey.get(),cacheKey.getOffset(),cacheKey.getLength()) + " with timestamp " + invalidatedTable.getTimeStamp() + " and seqNum " + invalidatedTable.getSequenceNumber());
}
}
}
// Get client timeStamp from mutations, since it may get updated by the mutateRowsWithLocks call
long currentTime = MetaDataUtil.getClientTimeStamp(tableMetadata);