/** Modify the column family from the file system */
private void updateTableDescriptor(final MasterProcedureEnv env) throws IOException {
// Update table descriptor
LOG.info("ModifyColumnFamily. Table = " + tableName + " HCD = " + cfDescriptor.toString());
HTableDescriptor htd = env.getMasterServices().getTableDescriptors().get(tableName);
htd.modifyFamily(cfDescriptor);
env.getMasterServices().getTableDescriptors().add(htd);
}
/**
* Add column to a table
* @param tableName
* @param hcd
* @return Modified HTableDescriptor with new column added.
* @throws IOException
*/
public HTableDescriptor addColumn(byte[] tableName, HColumnDescriptor hcd)
throws IOException {
LOG.info("AddColumn. Table = " + Bytes.toString(tableName) + " HCD = " +
hcd.toString());
HTableDescriptor htd = this.services.getTableDescriptors().get(tableName);
if (htd == null) {
throw new InvalidFamilyOperationException("Family '" +
hcd.getNameAsString() + "' cannot be modified as HTD is null");
}
htd.addFamily(hcd);
this.services.getTableDescriptors().add(htd);
return htd;
}
/**
* Modify Column of a table
* @param tableName
* @param hcd HColumnDesciptor
* @return Modified HTableDescriptor with the column modified.
* @throws IOException
*/
public HTableDescriptor modifyColumn(byte[] tableName, HColumnDescriptor hcd)
throws IOException {
LOG.info("AddModifyColumn. Table = " + Bytes.toString(tableName)
+ " HCD = " + hcd.toString());
HTableDescriptor htd = this.services.getTableDescriptors().get(tableName);
byte [] familyName = hcd.getName();
if(!htd.hasFamily(familyName)) {
throw new InvalidFamilyOperationException("Family '" +
Bytes.toString(familyName) + "' doesn't exists so cannot be modified");
}
htd.addFamily(hcd);
this.services.getTableDescriptors().add(htd);
return htd;
}
/** Add the column family to the file system */
private void updateTableDescriptor(final MasterProcedureEnv env) throws IOException {
// Update table descriptor
LOG.info("AddColumn. Table = " + tableName + " HCD = " + cfDescriptor.toString());
HTableDescriptor htd = env.getMasterServices().getTableDescriptors().get(tableName);
if (htd.hasFamily(cfDescriptor.getName())) {
// It is possible to reach this situation, as we could already add the column family
// to table descriptor, but the master failover happens before we complete this state.
// We should be able to handle running this function multiple times without causing problem.
return;
}
htd.addFamily(cfDescriptor);
env.getMasterServices().getTableDescriptors().add(htd);
}
