private static List<Column> getColumns(StatementClient client) {
while (client.isValid()) {
List<Column> columns = client.current().getColumns();
if (columns != null) {
return columns;
}
client.advance();
}
if (!client.isFailed()) {
throw internalServerError("No columns");
}
throw internalServerError(failureMessage(client.finalResults()));
}
public void renderFailure(PrintStream out) {
QueryResults results = client.finalResults();
QueryError error = results.getError();
checkState(error != null);
out.printf("Query %s failed: %s%n", results.getId(), error.getMessage());
if (client.isDebug() && (error.getFailureInfo() != null)) {
error.getFailureInfo().toException().printStackTrace(out);
}
if (error.getErrorLocation() != null) {
renderErrorLocation(client.getQuery(), error.getErrorLocation(), out);
}
out.println();
}
@Override
protected Iterable<List<Object>> computeNext() {
while (client.isValid()) {
Iterable<List<Object>> data = client.current().getData();
client.advance();
if (data != null) {
return data;
}
}
if (client.isFailed()) {
throw internalServerError(failureMessage(client.finalResults()));
}
return endOfData();
}
private void renderQueryOutput(PrintStream out, OutputFormat outputFormat, boolean interactive) {
StatusPrinter statusPrinter = null;
@SuppressWarnings("resource")
PrintStream errorChannel = interactive ? out : System.err;
if (interactive) {
statusPrinter = new StatusPrinter(client, out);
statusPrinter.printInitialStatusUpdates();
} else {
waitForData();
}
if ((!client.isFailed()) && (!client.isGone()) && (!client.isClosed())) {
QueryResults results = client.isValid() ? client.current() : client.finalResults();
if (results.getUpdateType() != null) {
renderUpdate(out, results);
} else if (results.getColumns() == null) {
errorChannel.printf("Query %s has no columns\n", results.getId());
return;
} else {
renderResults(out, outputFormat, interactive, results.getColumns());
}
}
if (statusPrinter != null) {
statusPrinter.printFinalInfo();
}
if (client.isClosed()) {
errorChannel.println("Query aborted by user");
} else if (client.isGone()) {
errorChannel.println("Query is gone (server restarted?)");
} else if (client.isFailed()) {
renderFailure(errorChannel);
}
}
public void printFinalInfo() {
Duration wallTime = nanosSince(start);
QueryResults results = client.finalResults();
StatementStats stats = results.getStats();
int nodes = stats.getNodes();
if ((nodes == 0) || (stats.getTotalSplits() == 0)) {
return;
}
// blank line
out.println();
// Query 12, FINISHED, 1 node
String querySummary =
String.format(
"Query %s, %s, %,d %s",
results.getId(), stats.getState(), nodes, pluralize("node", nodes));
out.println(querySummary);
if (debug) {
out.println(results.getInfoUri().toString());
}
// Splits: 1000 total, 842 done (84.20%)
String splitsSummary =
String.format(
"Splits: %,d total, %,d done (%.2f%%)",
stats.getTotalSplits(),
stats.getCompletedSplits(),
percentage(stats.getCompletedSplits(), stats.getTotalSplits()));
out.println(splitsSummary);
if (debug) {
// CPU Time: 565.2s total, 26K rows/s, 3.85MB/s
Duration cpuTime = millis(stats.getCpuTimeMillis());
String cpuTimeSummary =
String.format(
"CPU Time: %.1fs total, %5s rows/s, %8s, %d%% active",
cpuTime.getValue(SECONDS),
formatCountRate(stats.getProcessedRows(), cpuTime, false),
formatDataRate(bytes(stats.getProcessedBytes()), cpuTime, true),
(int) percentage(stats.getCpuTimeMillis(), stats.getWallTimeMillis()));
out.println(cpuTimeSummary);
double parallelism = cpuTime.getValue(MILLISECONDS) / wallTime.getValue(MILLISECONDS);
// Per Node: 3.5 parallelism, 83.3K rows/s, 0.7 MB/s
String perNodeSummary =
String.format(
"Per Node: %.1f parallelism, %5s rows/s, %8s",
parallelism / nodes,
formatCountRate((double) stats.getProcessedRows() / nodes, wallTime, false),
formatDataRate(bytes(stats.getProcessedBytes() / nodes), wallTime, true));
reprintLine(perNodeSummary);
out.println(String.format("Parallelism: %.1f", parallelism));
}
// 0:32 [2.12GB, 15M rows] [67MB/s, 463K rows/s]
String statsLine =
String.format(
"%s [%s rows, %s] [%s rows/s, %s]",
formatTime(wallTime),
formatCount(stats.getProcessedRows()),
formatDataSize(bytes(stats.getProcessedBytes()), true),
formatCountRate(stats.getProcessedRows(), wallTime, false),
formatDataRate(bytes(stats.getProcessedBytes()), wallTime, true));
out.println(statsLine);
// blank line
out.println();
}