/**
* Get the HRegionInfo from cache, if not there, from the hbase:meta table. Be careful. Does RPC.
* Do not hold a lock or synchronize when you call this method.
*
* @param regionName
* @return HRegionInfo for the region
*/
@SuppressWarnings("deprecation")
protected HRegionInfo getRegionInfo(final byte[] regionName) {
String encodedName = HRegionInfo.encodeRegionName(regionName);
RegionState regionState = getRegionState(encodedName);
if (regionState != null) {
return regionState.getRegion();
}
try {
Pair<HRegionInfo, ServerName> p =
MetaTableAccessor.getRegion(server.getConnection(), regionName);
HRegionInfo hri = p == null ? null : p.getFirst();
if (hri != null) {
createRegionState(hri);
}
return hri;
} catch (IOException e) {
server.abort(
"Aborting because error occoured while reading "
+ Bytes.toStringBinary(regionName)
+ " from hbase:meta",
e);
return null;
}
}
/**
* Add a list of regions to RegionStates. If a region is split and offline, its state will be
* SPLIT. Otherwise, its state will be OFFLINE. Region already in RegionStates will be skipped.
*/
public void createRegionStates(final List<HRegionInfo> hris) {
for (HRegionInfo hri : hris) {
createRegionState(hri);
}
}