/** * 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); } }