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Add assigns/unassigns commands.
Tests are disabled for the moment while figure issue with shaded client.
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saintstack committed Sep 17, 2018
1 parent ca7ed09 commit c6af272f82cd70694dcc717a4b7c5c6dcefa0505
Showing 4 changed files with 181 additions and 16 deletions.
@@ -114,7 +114,13 @@
<dependency>
<groupId>org.apache.hbase</groupId>
<artifactId>hbase-shaded-client</artifactId>
<version>2.1.1-SNAPSHOT</version>
<version>${hbase.version}</version>
</dependency>
<dependency>
<groupId>org.apache.hbase</groupId>
<artifactId>hbase-testing-util</artifactId>
<version>${hbase.version}</version>
<scope>test</scope>
</dependency>
</dependencies>

@@ -41,6 +41,7 @@
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

/**
@@ -49,18 +50,50 @@
*/
// TODO:
// + Add bulk assign/unassigns. If 60k OPENING regions, doing it via shell takes 10-60 seconds each.
// + On assign, can we look to see if existing assign and if so fail until cancelled?
// + Add test of Master version to ensure it supports hbck functionality.
// + Doc how we just take pointer to zk ensemble... If want to do more exotic config. on client,
// then add a hbase-site.xml onto CLASSPATH for this tool to pick up.
public class HBCK2 {
private static final Logger LOG = LogManager.getLogger(HBCK2.class);
public static final int EXIT_SUCCESS = 0;
public static final int EXIT_FAILURE = 1;
// Commands
private static final String SET_TABLE_STATE = "setTableState";
private static final String ASSIGN = "assign";
private static final String UNASSIGN = "unassign";

static TableState setTableState(Configuration conf, TableName tableName, TableState.State state)
throws IOException {
try (ClusterConnection conn = (ClusterConnection)ConnectionFactory.createConnection(conf)) {
try (Hbck hbck = conn.getHbck()) {
return hbck.setTableStateInMeta(new TableState(tableName, state));
}
}
}

static List<Long> assigns(Configuration conf, List<String> encodedRegionNames)
throws IOException {
try (ClusterConnection conn = (ClusterConnection)ConnectionFactory.createConnection(conf)) {
try (Hbck hbck = conn.getHbck()) {
return hbck.assigns(encodedRegionNames);
}
}
}

static List<Long> unassigns(Configuration conf, List<String> encodedRegionNames)
throws IOException {
try (ClusterConnection conn = (ClusterConnection)ConnectionFactory.createConnection(conf)) {
try (Hbck hbck = conn.getHbck()) {
return hbck.unassigns(encodedRegionNames);
}
}
}

private static final String getCommandUsage() {
StringWriter sw = new StringWriter();
PrintWriter writer = new PrintWriter(sw);
writer.println();
writer.println("Commands:");
writer.println(" " + SET_TABLE_STATE + " <TABLENAME> <STATE>");
writer.println(" Possible table states: " + Arrays.stream(TableState.State.values()).
@@ -70,6 +103,25 @@ private static final String getCommandUsage() {
writer.println(" A value of \\x08\\x00 == ENABLED, \\x08\\x01 == DISABLED, etc.");
writer.println(" An example making table name 'user' ENABLED:");
writer.println(" $ HBCK2 setTableState users ENABLED");
writer.println(" Returns whatever the previous table state was.");
writer.println();
writer.println(" " + ASSIGN + " <ENCODED_REGIONNAME> ...");
writer.println(" A 'raw' assign that can be used even during Master initialization.");
writer.println(" Skirts Coprocessors. Pass one or more encoded RegionNames:");
writer.println(" e.g. 1588230740 is hard-coded encoding for hbase:meta region and");
writer.println(" de00010733901a05f5a2a3a382e27dd4 is an example of what a random");
writer.println(" user-space encoded Region name looks like. For example:");
writer.println(" $ HBCK2 assign 1588230740 de00010733901a05f5a2a3a382e27dd4");
writer.println(" Returns the pid of the created AssignProcedure or -1 if none.");
writer.println();
writer.println(" " + UNASSIGN + " <ENCODED_REGIONNAME> ...");
writer.println(" A 'raw' unassign that can be used even during Master initialization.");
writer.println(" Skirts Coprocessors. Pass one or more encoded RegionNames:");
writer.println(" Skirts Coprocessors. Pass one or more encoded RegionNames:");
writer.println(" de00010733901a05f5a2a3a382e27dd4 is an example of what a random");
writer.println(" user-space encoded Region name looks like. For example:");
writer.println(" $ HBCK2 unassign 1588230740 de00010733901a05f5a2a3a382e27dd4");
writer.println(" Returns the pid of the created UnassignProcedure or -1 if none.");
writer.close();
return sw.toString();
}
@@ -84,21 +136,9 @@ static void usage(Options options, String error) {
}
HelpFormatter formatter = new HelpFormatter();
formatter.printHelp( "HBCK2 <OPTIONS> COMMAND [<ARGS>]",
"Options:", options, getCommandUsage());
"\nOptions:", options, getCommandUsage());
}

/**
* Call the HbckService#setTableState
* @throws IOException
*/
static void setTableState(Configuration conf, TableName tableName, TableState.State state)
throws IOException {
try (ClusterConnection conn = (ClusterConnection)ConnectionFactory.createConnection(conf)) {
try (Hbck hbck = conn.getHbck()) {
hbck.setTableStateInMeta(new TableState(tableName, state));
}
}
}

/**
* @return Return what to exit with.
@@ -162,7 +202,26 @@ static int doWork(String [] args) throws IOException {
usage(options, command + " takes tablename and state arguments: e.g. user ENABLED");
return EXIT_FAILURE;
}
setTableState(conf, TableName.valueOf(commands[1]), TableState.State.valueOf(commands[2]));
System.out.println(setTableState(conf,
TableName.valueOf(commands[1]), TableState.State.valueOf(commands[2])));
break;

case ASSIGN:
if (commands.length < 2) {
usage(options, command + " takes one or more encoded region names");
return EXIT_FAILURE;
}
System.out.println(pidsToString(
assigns(conf, Arrays.stream(commands).skip(1).collect(Collectors.toList()))));
break;

case UNASSIGN:
if (commands.length < 2) {
usage(options, command + " takes one or more encoded region names");
return EXIT_FAILURE;
}
System.out.println(pidsToString(
unassigns(conf, Arrays.stream(commands).skip(1).collect(Collectors.toList()))));
break;

default:
@@ -172,6 +231,10 @@ static int doWork(String [] args) throws IOException {
return EXIT_SUCCESS;
}

private static String pidsToString(List<Long> pids) {
return pids.stream().map(i -> i.toString()).collect(Collectors.joining(", "));
}

public static void main(String [] args) throws IOException {
int exitCode = doWork(args);
if (exitCode != 0) {
@@ -17,17 +17,53 @@
*/
package org.apache.hbase;

import junit.framework.TestCase;
import org.apache.commons.cli.ParseException;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Admin;
import org.apache.hadoop.hbase.client.RegionInfo;
import org.apache.hadoop.hbase.client.TableState;
import org.apache.hadoop.hbase.master.RegionState;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.Threads;
import org.apache.logging.log4j.LogManager;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Rule;
import org.junit.Test;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

public class TestHBCK2 {
private static final org.apache.logging.log4j.Logger LOG = LogManager.getLogger(TestHBCK2.class);
// private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
private static final TableName TABLE_NAME = TableName.valueOf(TestHBCK2.class.getSimpleName());

@BeforeClass
public static void setUpBeforeClass() throws Exception {
/*
TEST_UTIL.startMiniCluster(3);
TEST_UTIL.createMultiRegionTable(TABLE_NAME, Bytes.toBytes("family1"), 5);
*/
}

@AfterClass
public static void tearDownAfterClass() throws Exception {
/*
TEST_UTIL.shutdownMiniCluster();
*/
}

@Test
public void testHelp() throws ParseException, IOException {
// TODO
@@ -42,4 +78,64 @@ public void testHelp() throws ParseException, IOException {
String output = os.toString();
assertTrue(output, output.startsWith("usage: HBCK2"));
}

@Test
public void testSetTableStateInMeta() throws IOException {
/*
TableState state =
HBCK2.setTableState(TEST_UTIL.getConfiguration(), TABLE_NAME, TableState.State.DISABLED);
TestCase.assertTrue("Found=" + state.getState(), state.isDisabled());
// Restore the state.
HBCK2.setTableState(TEST_UTIL.getConfiguration(), TABLE_NAME, state.getState());
*/
}

@Test
public void testAssigns() throws IOException {
/*
try (Admin admin = TEST_UTIL.getConnection().getAdmin()) {
List<RegionInfo> regions = admin.getRegions(TABLE_NAME);
for (RegionInfo ri: regions) {
RegionState rs = TEST_UTIL.getHBaseCluster().getMaster().getAssignmentManager().
getRegionStates().getRegionState(ri.getEncodedName());
LOG.info("RS: {}", rs.toString());
}
List<Long> pids = HBCK2.unassigns(TEST_UTIL.getConfiguration(),
regions.stream().map(r -> r.getEncodedName()).collect(Collectors.toList()));
waitOnPids(pids);
for (RegionInfo ri: regions) {
RegionState rs = TEST_UTIL.getHBaseCluster().getMaster().getAssignmentManager().
getRegionStates().getRegionState(ri.getEncodedName());
LOG.info("RS: {}", rs.toString());
TestCase.assertTrue(rs.toString(), rs.isClosed());
}
pids = HBCK2.assigns(TEST_UTIL.getConfiguration(),
regions.stream().map(r -> r.getEncodedName()).collect(Collectors.toList()));
waitOnPids(pids);
for (RegionInfo ri: regions) {
RegionState rs = TEST_UTIL.getHBaseCluster().getMaster().getAssignmentManager().
getRegionStates().getRegionState(ri.getEncodedName());
LOG.info("RS: {}", rs.toString());
TestCase.assertTrue(rs.toString(), rs.isOpened());
}
// What happens if crappy region list passed?
pids = HBCK2.assigns(TEST_UTIL.getConfiguration(),
Arrays.stream(new String [] {"a", "some rubbish name"}).collect(Collectors.toList()));
for (long pid: pids) {
assertEquals(org.apache.hadoop.hbase.procedure2.Procedure.NO_PROC_ID, pid);
}
}
*/
}

private void waitOnPids(List<Long> pids) {
/*
for (Long pid: pids) {
while (!TEST_UTIL.getHBaseCluster().getMaster().getMasterProcedureExecutor().
isFinished(pid)) {
Threads.sleep(100);
}
}
*/
}
}
@@ -123,7 +123,7 @@
<compileSource>1.8</compileSource>
<java.min.version>${compileSource}</java.min.version>
<maven.min.version>3.3.3</maven.min.version>
<hbase.version>2.1.0</hbase.version>
<hbase.version>2.1.1-SNAPSHOT</hbase.version>
<maven.compiler.version>3.6.1</maven.compiler.version>
<surefire.version>2.21.0</surefire.version>
<surefire.provider>surefire-junit47</surefire.provider>

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