@Override
public void run() {
long startTime, endTime;
HTableDescriptor desc = new HTableDescriptor(TABLE_NAME);
desc.addFamily(new HColumnDescriptor(COLUMN_NAME));
SplitAlgorithm algo = new RegionSplitter.HexStringSplit();
byte[][] splits = algo.split(REGION_COUNT);
LOG.info(String.format("Creating table %s with %d splits.", TABLE_NAME, REGION_COUNT));
startTime = System.currentTimeMillis();
try {
admin.createTable(desc, splits);
endTime = System.currentTimeMillis();
success = true;
LOG.info(
String.format("Pre-split table created successfully in %dms.", (endTime - startTime)));
} catch (IOException e) {
LOG.error("Failed to create table", e);
} finally {
doneSignal.countDown();
}
}
private boolean splitFailsPrecondition(SplitAlgorithm algo, int numRegions) {
try {
byte[][] s = algo.split(numRegions);
LOG.debug("split algo = " + algo);
if (s != null) {
StringBuilder sb = new StringBuilder();
for (byte[] b : s) {
sb.append(Bytes.toStringBinary(b) + " ");
}
LOG.debug(sb.toString());
}
return false;
} catch (IllegalArgumentException e) {
return true;
} catch (IllegalStateException e) {
return true;
} catch (IndexOutOfBoundsException e) {
return true;
}
}
private boolean splitFailsPrecondition(
SplitAlgorithm algo, String firstRow, String lastRow, int numRegions) {
algo.setFirstRow(firstRow);
algo.setLastRow(lastRow);
return splitFailsPrecondition(algo, numRegions);
}