Examples with ShowLocksResponseElement org.apache.hadoop.hive.metastore.api.ShowLocksResponseElement used on opensource projects

Example 1 with ShowLocksResponseElement

use of org.apache.hadoop.hive.metastore.api.ShowLocksResponseElement in project hive by apache.

the class TestDbTxnManager2 method testWriteSetTracking8.

/**
   * Concurrent updates with partition pruning predicate and w/o one
   */
@Test
public void testWriteSetTracking8() throws Exception {
    dropTable(new String[] { "tab1", "TAB1" });
    CommandProcessorResponse cpr = driver.run("create table if not exists tab1 (a int, b int) partitioned by (p string) " + "clustered by (a) into 2  buckets stored as orc TBLPROPERTIES ('transactional'='true')");
    checkCmdOnDriver(cpr);
    //txnid:1
    checkCmdOnDriver(driver.run("insert into tab1 partition(p)(a,b,p) values(1,1,'one'),(2,2,'two')"));
    HiveTxnManager txnMgr2 = TxnManagerFactory.getTxnManagerFactory().getTxnManager(conf);
    txnMgr2.openTxn(ctx, "T2");
    checkCmdOnDriver(driver.compileAndRespond("update tab1 set b = 7 where b=1"));
    txnMgr2.acquireLocks(driver.getPlan(), ctx, "T2");
    List<ShowLocksResponseElement> locks = getLocks(txnMgr2);
    Assert.assertEquals("Unexpected lock count", 2, locks.size());
    checkLock(LockType.SHARED_WRITE, LockState.ACQUIRED, "default", "TAB1", "p=two", locks);
    checkLock(LockType.SHARED_WRITE, LockState.ACQUIRED, "default", "TAB1", "p=one", locks);
    //now start concurrent txn
    txnMgr.openTxn(ctx, "T3");
    checkCmdOnDriver(driver.compileAndRespond("update tab1 set b = 7 where p='two'"));
    ((DbTxnManager) txnMgr).acquireLocks(driver.getPlan(), ctx, "T3", false);
    locks = getLocks(txnMgr);
    Assert.assertEquals("Unexpected lock count", 3, locks.size());
    checkLock(LockType.SHARED_WRITE, LockState.ACQUIRED, "default", "TAB1", "p=two", locks);
    checkLock(LockType.SHARED_WRITE, LockState.ACQUIRED, "default", "TAB1", "p=one", locks);
    checkLock(LockType.SHARED_WRITE, LockState.WAITING, "default", "TAB1", "p=two", locks);
    //this simulates the completion of txnid:2
    AddDynamicPartitions adp = new AddDynamicPartitions(txnMgr2.getCurrentTxnId(), "default", "tab1", Collections.singletonList("p=one"));
    adp.setOperationType(DataOperationType.UPDATE);
    txnHandler.addDynamicPartitions(adp);
    //txnid:2
    txnMgr2.commitTxn();
    //retest WAITING locks (both have same ext id)
    ((DbLockManager) txnMgr.getLockManager()).checkLock(locks.get(2).getLockid());
    locks = getLocks(txnMgr);
    Assert.assertEquals("Unexpected lock count", 1, locks.size());
    checkLock(LockType.SHARED_WRITE, LockState.ACQUIRED, "default", "TAB1", "p=two", locks);
    //completion of txnid:3
    adp = new AddDynamicPartitions(txnMgr.getCurrentTxnId(), "default", "tab1", Collections.singletonList("p=two"));
    adp.setOperationType(DataOperationType.UPDATE);
    txnHandler.addDynamicPartitions(adp);
    //txnid:3
    txnMgr.commitTxn();
    Assert.assertEquals("WRITE_SET mismatch: " + TxnDbUtil.queryToString("select * from WRITE_SET"), 1, TxnDbUtil.countQueryAgent("select count(*) from WRITE_SET where ws_partition='p=one' and ws_operation_type='u' and ws_table='tab1'"));
    Assert.assertEquals("WRITE_SET mismatch: " + TxnDbUtil.queryToString("select * from WRITE_SET"), 1, TxnDbUtil.countQueryAgent("select count(*) from WRITE_SET where ws_partition='p=two' and ws_operation_type='u' and ws_table='tab1'"));
    Assert.assertEquals("COMPLETED_TXN_COMPONENTS mismatch: " + TxnDbUtil.queryToString("select * from COMPLETED_TXN_COMPONENTS"), 4, TxnDbUtil.countQueryAgent("select count(*) from COMPLETED_TXN_COMPONENTS where ctc_table='tab1' and ctc_partition is not null"));
}

Example 2 with ShowLocksResponseElement

use of org.apache.hadoop.hive.metastore.api.ShowLocksResponseElement in project hive by apache.

the class TestDbTxnManager2 method testShowLocksFilterOptions.

@Test
public void testShowLocksFilterOptions() throws Exception {
    CommandProcessorResponse cpr = driver.run("drop table if exists db1.t14");
    checkCmdOnDriver(cpr);
    // Note that db1 and db2 have a table with common name
    cpr = driver.run("drop table if exists db2.t14");
    checkCmdOnDriver(cpr);
    cpr = driver.run("drop table if exists db2.t15");
    checkCmdOnDriver(cpr);
    cpr = driver.run("drop table if exists db2.t16");
    checkCmdOnDriver(cpr);
    cpr = driver.run("drop database if exists db1");
    checkCmdOnDriver(cpr);
    cpr = driver.run("drop database if exists db2");
    checkCmdOnDriver(cpr);
    cpr = driver.run("create database if not exists db1");
    checkCmdOnDriver(cpr);
    cpr = driver.run("create database if not exists db2");
    checkCmdOnDriver(cpr);
    cpr = driver.run("create table if not exists db1.t14 (a int, b int) partitioned by (ds string) clustered by (b) into 2 buckets stored as orc TBLPROPERTIES ('transactional'='true')");
    checkCmdOnDriver(cpr);
    cpr = driver.run("create table if not exists db2.t14 (a int, b int) clustered by (b) into 2 buckets stored as orc TBLPROPERTIES ('transactional'='true')");
    checkCmdOnDriver(cpr);
    cpr = driver.run("create table if not exists db2.t15 (a int, b int) clustered by (b) into 2 buckets stored as orc TBLPROPERTIES ('transactional'='true')");
    checkCmdOnDriver(cpr);
    cpr = driver.run("create table if not exists db2.t16 (a int, b int) clustered by (b) into 2 buckets stored as orc TBLPROPERTIES ('transactional'='true')");
    checkCmdOnDriver(cpr);
    // Acquire different locks at different levels
    cpr = driver.compileAndRespond("insert into table db1.t14 partition (ds='today') values (1, 2)");
    checkCmdOnDriver(cpr);
    txnMgr.acquireLocks(driver.getPlan(), ctx, "Tom");
    HiveTxnManager txnMgr2 = TxnManagerFactory.getTxnManagerFactory().getTxnManager(conf);
    cpr = driver.compileAndRespond("insert into table db1.t14 partition (ds='tomorrow') values (3, 4)");
    checkCmdOnDriver(cpr);
    txnMgr2.acquireLocks(driver.getPlan(), ctx, "Jerry");
    HiveTxnManager txnMgr3 = TxnManagerFactory.getTxnManagerFactory().getTxnManager(conf);
    cpr = driver.compileAndRespond("select * from db2.t15");
    checkCmdOnDriver(cpr);
    txnMgr3.acquireLocks(driver.getPlan(), ctx, "Donald");
    HiveTxnManager txnMgr4 = TxnManagerFactory.getTxnManagerFactory().getTxnManager(conf);
    cpr = driver.compileAndRespond("select * from db2.t16");
    checkCmdOnDriver(cpr);
    txnMgr4.acquireLocks(driver.getPlan(), ctx, "Hillary");
    HiveTxnManager txnMgr5 = TxnManagerFactory.getTxnManagerFactory().getTxnManager(conf);
    cpr = driver.compileAndRespond("select * from db2.t14");
    checkCmdOnDriver(cpr);
    txnMgr5.acquireLocks(driver.getPlan(), ctx, "Obama");
    // Simulate SHOW LOCKS with different filter options
    // SHOW LOCKS (no filter)
    List<ShowLocksResponseElement> locks = getLocks();
    Assert.assertEquals("Unexpected lock count", 5, locks.size());
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "db1", "t14", "ds=today", locks);
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "db1", "t14", "ds=tomorrow", locks);
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "db2", "t15", null, locks);
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "db2", "t16", null, locks);
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "db2", "t14", null, locks);
    // SHOW LOCKS db2
    locks = getLocksWithFilterOptions(txnMgr3, "db2", null, null);
    Assert.assertEquals("Unexpected lock count", 3, locks.size());
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "db2", "t15", null, locks);
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "db2", "t16", null, locks);
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "db2", "t14", null, locks);
    // SHOW LOCKS t14
    cpr = driver.run("use db1");
    checkCmdOnDriver(cpr);
    locks = getLocksWithFilterOptions(txnMgr, null, "t14", null);
    Assert.assertEquals("Unexpected lock count", 2, locks.size());
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "db1", "t14", "ds=today", locks);
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "db1", "t14", "ds=tomorrow", locks);
    // Note that it shouldn't show t14 from db2
    // SHOW LOCKS t14 PARTITION ds='today'
    Map<String, String> partSpec = new HashMap<String, String>();
    partSpec.put("ds", "today");
    locks = getLocksWithFilterOptions(txnMgr, null, "t14", partSpec);
    Assert.assertEquals("Unexpected lock count", 1, locks.size());
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "db1", "t14", "ds=today", locks);
    // SHOW LOCKS t15
    cpr = driver.run("use db2");
    checkCmdOnDriver(cpr);
    locks = getLocksWithFilterOptions(txnMgr3, null, "t15", null);
    Assert.assertEquals("Unexpected lock count", 1, locks.size());
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "db2", "t15", null, locks);
}

Example 3 with ShowLocksResponseElement

use of org.apache.hadoop.hive.metastore.api.ShowLocksResponseElement in project hive by apache.

the class TestDbTxnManager2 method createTable.

@Test
public void createTable() throws Exception {
    dropTable(new String[] { "T" });
    CommandProcessorResponse cpr = driver.compileAndRespond("create table if not exists T (a int, b int)");
    checkCmdOnDriver(cpr);
    txnMgr.acquireLocks(driver.getPlan(), ctx, "Fifer");
    List<ShowLocksResponseElement> locks = getLocks();
    Assert.assertEquals("Unexpected lock count", 1, locks.size());
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "default", null, null, locks);
    txnMgr.getLockManager().releaseLocks(ctx.getHiveLocks());
    Assert.assertEquals("Lock remained", 0, getLocks().size());
}

Example 4 with ShowLocksResponseElement

use of org.apache.hadoop.hive.metastore.api.ShowLocksResponseElement in project hive by apache.

the class TestDbTxnManager2 method testMergePartitioned.

/**
   * "run" an Update and Merge concurrently; Check that correct locks are acquired.
   * Check state of auxiliary ACID tables.
   * @param causeConflict - true to make the operations cause a Write conflict
   * @throws Exception
   */
private void testMergePartitioned(boolean causeConflict) throws Exception {
    dropTable(new String[] { "target", "source" });
    checkCmdOnDriver(driver.run("create table target (a int, b int) " + "partitioned by (p int, q int) clustered by (a) into 2  buckets " + "stored as orc TBLPROPERTIES ('transactional'='true')"));
    checkCmdOnDriver(driver.run("insert into target partition(p,q) values (1,2,1,2), (3,4,1,2), (5,6,1,3), (7,8,2,2)"));
    checkCmdOnDriver(driver.run("create table source (a1 int, b1 int, p1 int, q1 int)"));
    long txnId1 = txnMgr.openTxn(ctx, "T1");
    checkCmdOnDriver(driver.compileAndRespond("update target set b = 2 where p=1"));
    txnMgr.acquireLocks(driver.getPlan(), ctx, "T1");
    List<ShowLocksResponseElement> locks = getLocks(txnMgr);
    Assert.assertEquals("Unexpected lock count", 2, locks.size());
    checkLock(LockType.SHARED_WRITE, LockState.ACQUIRED, "default", "target", "p=1/q=2", locks);
    checkLock(LockType.SHARED_WRITE, LockState.ACQUIRED, "default", "target", "p=1/q=3", locks);
    DbTxnManager txnMgr2 = (DbTxnManager) TxnManagerFactory.getTxnManagerFactory().getTxnManager(conf);
    //start a 2nd (overlapping) txn
    long txnid2 = txnMgr2.openTxn(ctx, "T2");
    checkCmdOnDriver(driver.compileAndRespond("merge into target using source " + "on target.p=source.p1 and target.a=source.a1 " + "when matched then update set b = 11 " + "when not matched then insert values(a1,b1,p1,q1)"));
    txnMgr2.acquireLocks(driver.getPlan(), ctx, "T2", false);
    locks = getLocks(txnMgr);
    Assert.assertEquals("Unexpected lock count", 7, locks.size());
    /**
     * W locks from T1 are still there, so all locks from T2 block.
     * The Update part of Merge requests W locks for each existing partition in target.
     * The Insert part doesn't know which partitions may be written to: thus R lock on target table.
     * */
    checkLock(LockType.SHARED_READ, LockState.WAITING, "default", "source", null, locks);
    long extLockId = checkLock(LockType.SHARED_READ, LockState.WAITING, "default", "target", null, locks).getLockid();
    checkLock(LockType.SHARED_WRITE, LockState.WAITING, "default", "target", "p=1/q=2", locks);
    checkLock(LockType.SHARED_WRITE, LockState.ACQUIRED, "default", "target", "p=1/q=2", locks);
    checkLock(LockType.SHARED_WRITE, LockState.WAITING, "default", "target", "p=1/q=3", locks);
    checkLock(LockType.SHARED_WRITE, LockState.ACQUIRED, "default", "target", "p=1/q=3", locks);
    checkLock(LockType.SHARED_WRITE, LockState.WAITING, "default", "target", "p=2/q=2", locks);
    Assert.assertEquals("TXN_COMPONENTS mismatch(" + JavaUtils.txnIdToString(txnId1) + "): " + TxnDbUtil.queryToString("select * from TXN_COMPONENTS"), //because it's using a DP write
    0, TxnDbUtil.countQueryAgent("select count(*) from TXN_COMPONENTS where tc_txnid=" + txnId1));
    //complete T1 transaction (simulate writing to 2 partitions)
    AddDynamicPartitions adp = new AddDynamicPartitions(txnId1, "default", "target", Arrays.asList("p=1/q=2", "p=1/q=3"));
    adp.setOperationType(DataOperationType.UPDATE);
    txnHandler.addDynamicPartitions(adp);
    Assert.assertEquals("TXN_COMPONENTS mismatch(" + JavaUtils.txnIdToString(txnId1) + "): " + TxnDbUtil.queryToString("select * from TXN_COMPONENTS"), 2, TxnDbUtil.countQueryAgent("select count(*) from TXN_COMPONENTS where tc_txnid=" + txnId1 + " and tc_operation_type='u'"));
    //commit T1
    txnMgr.commitTxn();
    Assert.assertEquals("WRITE_SET mismatch(" + JavaUtils.txnIdToString(txnId1) + "): " + TxnDbUtil.queryToString("select * from WRITE_SET"), //2 partitions updated
    2, TxnDbUtil.countQueryAgent("select count(*) from WRITE_SET where ws_txnid=" + txnId1 + " and ws_operation_type='u'"));
    //re-check locks which were in Waiting state - should now be Acquired
    ((DbLockManager) txnMgr2.getLockManager()).checkLock(extLockId);
    locks = getLocks(txnMgr);
    Assert.assertEquals("Unexpected lock count", 5, locks.size());
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "default", "source", null, locks);
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "default", "target", null, locks);
    checkLock(LockType.SHARED_WRITE, LockState.ACQUIRED, "default", "target", "p=1/q=2", locks);
    checkLock(LockType.SHARED_WRITE, LockState.ACQUIRED, "default", "target", "p=1/q=3", locks);
    checkLock(LockType.SHARED_WRITE, LockState.ACQUIRED, "default", "target", "p=2/q=2", locks);
    Assert.assertEquals("TXN_COMPONENTS mismatch(" + JavaUtils.txnIdToString(txnid2) + "): " + TxnDbUtil.queryToString("select * from TXN_COMPONENTS"), //because it's using a DP write
    0, TxnDbUtil.countQueryAgent("select count(*) from TXN_COMPONENTS where tc_txnid=" + txnid2));
    //complete T2 txn
    //simulate Insert into 2 partitions
    adp = new AddDynamicPartitions(txnid2, "default", "target", Arrays.asList("p=1/q=2", "p=1/q=3"));
    adp.setOperationType(DataOperationType.INSERT);
    txnHandler.addDynamicPartitions(adp);
    Assert.assertEquals("TXN_COMPONENTS mismatch(" + JavaUtils.txnIdToString(txnid2) + "): " + TxnDbUtil.queryToString("select * from TXN_COMPONENTS"), 2, TxnDbUtil.countQueryAgent("select count(*) from TXN_COMPONENTS where tc_txnid=" + txnid2 + " and tc_operation_type='i'"));
    //simulate Update of 1 partitions; depending on causeConflict, choose one of the partitions
    //which was modified by the T1 update stmt or choose a non-conflicting one
    adp = new AddDynamicPartitions(txnid2, "default", "target", Collections.singletonList(causeConflict ? "p=1/q=2" : "p=1/q=1"));
    adp.setOperationType(DataOperationType.UPDATE);
    txnHandler.addDynamicPartitions(adp);
    Assert.assertEquals("TXN_COMPONENTS mismatch(" + JavaUtils.txnIdToString(txnid2) + "): " + TxnDbUtil.queryToString("select * from TXN_COMPONENTS"), 1, TxnDbUtil.countQueryAgent("select count(*) from TXN_COMPONENTS where tc_txnid=" + txnid2 + " and tc_operation_type='u'"));
    LockException expectedException = null;
    try {
        txnMgr2.commitTxn();
    } catch (LockException e) {
        expectedException = e;
    }
    if (causeConflict) {
        Assert.assertTrue("Didn't get exception", expectedException != null);
        Assert.assertEquals("Got wrong message code", ErrorMsg.TXN_ABORTED, expectedException.getCanonicalErrorMsg());
        Assert.assertEquals("Exception msg didn't match", "Aborting [txnid:3,3] due to a write conflict on default/target/p=1/q=2 committed by [txnid:2,3] u/u", expectedException.getCause().getMessage());
    } else {
        Assert.assertEquals("WRITE_SET mismatch(" + JavaUtils.txnIdToString(txnid2) + "): " + TxnDbUtil.queryToString("select * from WRITE_SET"), //1 partitions updated
        1, TxnDbUtil.countQueryAgent("select count(*) from WRITE_SET where ws_txnid=" + txnid2 + " and ws_operation_type='u'"));
        Assert.assertEquals("WRITE_SET mismatch(" + JavaUtils.txnIdToString(txnid2) + "): " + TxnDbUtil.queryToString("select * from WRITE_SET"), //1 partitions updated (and no other entries)
        1, TxnDbUtil.countQueryAgent("select count(*) from WRITE_SET where ws_txnid=" + txnid2));
    }
}

Example 5 with ShowLocksResponseElement

use of org.apache.hadoop.hive.metastore.api.ShowLocksResponseElement in project hive by apache.

the class TestDbTxnManager2 method testLockRetryLimit.

@Test
public void testLockRetryLimit() throws Exception {
    dropTable(new String[] { "T9" });
    conf.setIntVar(HiveConf.ConfVars.HIVE_LOCK_NUMRETRIES, 2);
    conf.setBoolVar(HiveConf.ConfVars.TXN_MGR_DUMP_LOCK_STATE_ON_ACQUIRE_TIMEOUT, true);
    HiveTxnManager otherTxnMgr = new DbTxnManager();
    ((DbTxnManager) otherTxnMgr).setHiveConf(conf);
    CommandProcessorResponse cpr = driver.run("create table T9(a int)");
    checkCmdOnDriver(cpr);
    cpr = driver.compileAndRespond("select * from T9");
    checkCmdOnDriver(cpr);
    txnMgr.acquireLocks(driver.getPlan(), ctx, "Vincent Vega");
    List<ShowLocksResponseElement> locks = getLocks(txnMgr);
    Assert.assertEquals("Unexpected lock count", 1, locks.size());
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "default", "T9", null, locks);
    cpr = driver.compileAndRespond("drop table T9");
    checkCmdOnDriver(cpr);
    try {
        otherTxnMgr.acquireLocks(driver.getPlan(), ctx, "Winston Winnfield");
    } catch (LockException ex) {
        Assert.assertEquals("Got wrong lock exception", ErrorMsg.LOCK_ACQUIRE_TIMEDOUT, ex.getCanonicalErrorMsg());
    }
    locks = getLocks(txnMgr);
    Assert.assertEquals("Unexpected lock count", 1, locks.size());
    checkLock(LockType.SHARED_READ, LockState.ACQUIRED, "default", "T9", null, locks);
    otherTxnMgr.closeTxnManager();
}