MasterCoprocessorHost (Apache HBase 1.2.12 API)

java.lang.Object
- org.apache.hadoop.hbase.coprocessor.CoprocessorHost<MasterCoprocessorHost.MasterEnvironment>
- - org.apache.hadoop.hbase.master.MasterCoprocessorHost

```
@InterfaceAudience.Private
public class MasterCoprocessorHost
extends CoprocessorHost<MasterCoprocessorHost.MasterEnvironment>
```
Provides the coprocessor framework and environment for master oriented operations. HMaster interacts with the loaded coprocessors through this class.

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`private static class`	`MasterCoprocessorHost.CoprocessorOperation`
`private static class`	`MasterCoprocessorHost.CoprocessorOperationWithResult<T>`
`(package private) static class`	`MasterCoprocessorHost.MasterEnvironment` Coprocessor environment extension providing access to master related services.

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.coprocessor.CoprocessorHost
CoprocessorHost.Environment

Field Summary

Fields
Modifier and Type Field and Description

private static org.apache.commons.logging.Log LOG

private MasterServices masterServices
- Fields inherited from class org.apache.hadoop.hbase.coprocessor.CoprocessorHost
  ABORT_ON_ERROR_KEY, abortable, conf, coprocessors, COPROCESSORS_ENABLED_CONF_KEY, DEFAULT_ABORT_ON_ERROR, DEFAULT_COPROCESSORS_ENABLED, DEFAULT_USER_COPROCESSORS_ENABLED, loadSequence, MASTER_COPROCESSOR_CONF_KEY, pathPrefix, REGION_COPROCESSOR_CONF_KEY, REGIONSERVER_COPROCESSOR_CONF_KEY, USER_COPROCESSORS_ENABLED_CONF_KEY, USER_REGION_COPROCESSOR_CONF_KEY, WAL_COPROCESSOR_CONF_KEY

Fields
Modifier and Type	Field and Description
`private static org.apache.commons.logging.Log`	`LOG`
`private MasterServices`	`masterServices`

Constructor Summary

Constructors
Constructor and Description

MasterCoprocessorHost(MasterServices services, org.apache.hadoop.conf.Configuration conf)

Constructors
Constructor and Description
`MasterCoprocessorHost(MasterServices services, org.apache.hadoop.conf.Configuration conf)`

Method Summary

Methods
Modifier and Type	Method and Description
`MasterCoprocessorHost.MasterEnvironment`	`createEnvironment(Class<?> implClass, Coprocessor instance, int priority, int seq, org.apache.hadoop.conf.Configuration conf)` Called when a new Coprocessor class is loaded
`private boolean`	`execOperation(MasterCoprocessorHost.CoprocessorOperation ctx)`
`private <T> T`	`execOperationWithResult(T defaultValue, MasterCoprocessorHost.CoprocessorOperationWithResult<T> ctx)`
`private boolean`	`execShutdown(MasterCoprocessorHost.CoprocessorOperation ctx)` Master coprocessor classes can be configured in any order, based on that priority is set and chained in a sorted order.
`void`	`postAbortProcedure()`
`void`	`postAddColumn(TableName tableName, HColumnDescriptor column)`
`void`	`postAddColumnHandler(TableName tableName, HColumnDescriptor column)`
`void`	`postAssign(HRegionInfo regionInfo)`
`void`	`postBalance(List<RegionPlan> plans)`
`void`	`postBalanceSwitch(boolean oldValue, boolean newValue)`
`void`	`postCloneSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot, HTableDescriptor hTableDescriptor)`
`void`	`postCreateNamespace(NamespaceDescriptor ns)`
`void`	`postCreateTable(HTableDescriptor htd, HRegionInfo[] regions)`
`void`	`postCreateTableHandler(HTableDescriptor htd, HRegionInfo[] regions)`
`void`	`postDeleteColumn(TableName tableName, byte[] c)`
`void`	`postDeleteColumnHandler(TableName tableName, byte[] c)`
`void`	`postDeleteNamespace(String namespaceName)`
`void`	`postDeleteSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot)`
`void`	`postDeleteTable(TableName tableName)`
`void`	`postDeleteTableHandler(TableName tableName)`
`void`	`postDisableTable(TableName tableName)`
`void`	`postDisableTableHandler(TableName tableName)`
`void`	`postEnableTable(TableName tableName)`
`void`	`postEnableTableHandler(TableName tableName)`
`void`	`postGetNamespaceDescriptor(NamespaceDescriptor ns)`
`void`	`postGetTableDescriptors(List<HTableDescriptor> descriptors)` Deprecated.
`void`	`postGetTableDescriptors(List<TableName> tableNamesList, List<HTableDescriptor> descriptors, String regex)`
`void`	`postGetTableNames(List<HTableDescriptor> descriptors, String regex)`
`void`	`postListNamespaceDescriptors(List<NamespaceDescriptor> descriptors)`
`void`	`postListProcedures(List<ProcedureInfo> procInfoList)`
`void`	`postListSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot)`
`void`	`postModifyColumn(TableName tableName, HColumnDescriptor descriptor)`
`void`	`postModifyColumnHandler(TableName tableName, HColumnDescriptor descriptor)`
`void`	`postModifyNamespace(NamespaceDescriptor ns)`
`void`	`postModifyTable(TableName tableName, HTableDescriptor htd)`
`void`	`postModifyTableHandler(TableName tableName, HTableDescriptor htd)`
`void`	`postMove(HRegionInfo region, ServerName srcServer, ServerName destServer)`
`void`	`postRegionOffline(HRegionInfo regionInfo)`
`void`	`postRestoreSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot, HTableDescriptor hTableDescriptor)`
`void`	`postSetNamespaceQuota(String namespace, org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)`
`void`	`postSetTableQuota(TableName table, org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)`
`void`	`postSetUserQuota(String user, org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)`
`void`	`postSetUserQuota(String user, String namespace, org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)`
`void`	`postSetUserQuota(String user, TableName table, org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)`
`void`	`postSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot, HTableDescriptor hTableDescriptor)`
`void`	`postStartMaster()`
`void`	`postTableFlush(TableName tableName)`
`void`	`postTruncateTable(TableName tableName)`
`void`	`postTruncateTableHandler(TableName tableName)`
`void`	`postUnassign(HRegionInfo regionInfo, boolean force)`
`boolean`	`preAbortProcedure(ProcedureExecutor<MasterProcedureEnv> procEnv, long procId)`
`boolean`	`preAddColumn(TableName tableName, HColumnDescriptor column)`
`boolean`	`preAddColumnHandler(TableName tableName, HColumnDescriptor column)`
`boolean`	`preAssign(HRegionInfo regionInfo)`
`boolean`	`preBalance()`
`boolean`	`preBalanceSwitch(boolean b)`
`void`	`preCloneSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot, HTableDescriptor hTableDescriptor)`
`boolean`	`preCreateNamespace(NamespaceDescriptor ns)`
`void`	`preCreateTable(HTableDescriptor htd, HRegionInfo[] regions)`
`void`	`preCreateTableHandler(HTableDescriptor htd, HRegionInfo[] regions)`
`boolean`	`preDeleteColumn(TableName tableName, byte[] c)`
`boolean`	`preDeleteColumnHandler(TableName tableName, byte[] c)`
`boolean`	`preDeleteNamespace(String namespaceName)`
`void`	`preDeleteSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot)`
`void`	`preDeleteTable(TableName tableName)`
`void`	`preDeleteTableHandler(TableName tableName)`
`void`	`preDisableTable(TableName tableName)`
`void`	`preDisableTableHandler(TableName tableName)`
`void`	`preEnableTable(TableName tableName)`
`void`	`preEnableTableHandler(TableName tableName)`
`void`	`preGetNamespaceDescriptor(String namespaceName)`
`boolean`	`preGetTableDescriptors(List<TableName> tableNamesList, List<HTableDescriptor> descriptors)` Deprecated.
`boolean`	`preGetTableDescriptors(List<TableName> tableNamesList, List<HTableDescriptor> descriptors, String regex)`
`boolean`	`preGetTableNames(List<HTableDescriptor> descriptors, String regex)`
`boolean`	`preListNamespaceDescriptors(List<NamespaceDescriptor> descriptors)`
`boolean`	`preListProcedures()`
`void`	`preListSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot)`
`void`	`preMasterInitialization()`
`boolean`	`preModifyColumn(TableName tableName, HColumnDescriptor descriptor)`
`boolean`	`preModifyColumnHandler(TableName tableName, HColumnDescriptor descriptor)`
`boolean`	`preModifyNamespace(NamespaceDescriptor ns)`
`void`	`preModifyTable(TableName tableName, HTableDescriptor htd)`
`void`	`preModifyTableHandler(TableName tableName, HTableDescriptor htd)`
`boolean`	`preMove(HRegionInfo region, ServerName srcServer, ServerName destServer)`
`void`	`preRegionOffline(HRegionInfo regionInfo)`
`void`	`preRestoreSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot, HTableDescriptor hTableDescriptor)`
`void`	`preSetNamespaceQuota(String namespace, org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)`
`void`	`preSetTableQuota(TableName table, org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)`
`void`	`preSetUserQuota(String user, org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)`
`void`	`preSetUserQuota(String user, String namespace, org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)`
`void`	`preSetUserQuota(String user, TableName table, org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)`
`void`	`preShutdown()`
`void`	`preSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot, HTableDescriptor hTableDescriptor)`
`void`	`preStopMaster()`
`void`	`preTableFlush(TableName tableName)`
`void`	`preTruncateTable(TableName tableName)`
`void`	`preTruncateTableHandler(TableName tableName)`
`boolean`	`preUnassign(HRegionInfo regionInfo, boolean force)`

Methods inherited from class org.apache.hadoop.hbase.coprocessor.CoprocessorHost
abortServer, abortServer, findCoprocessor, findCoprocessorEnvironment, findCoprocessors, getCoprocessors, getLoadedCoprocessors, handleCoprocessorThrowable, legacyWarning, load, load, loadInstance, loadSystemCoprocessors, shutdown, useLegacyMethod

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LOG

private static final org.apache.commons.logging.Log LOG

masterServices
```
private MasterServices masterServices
```

Constructor Detail

MasterCoprocessorHost

public MasterCoprocessorHost(MasterServices services,
                     org.apache.hadoop.conf.Configuration conf)

Method Detail

createEnvironment

public MasterCoprocessorHost.MasterEnvironment createEnvironment(Class<?> implClass,
                                                        Coprocessor instance,
                                                        int priority,
                                                        int seq,
                                                        org.apache.hadoop.conf.Configuration conf)

Description copied from class: CoprocessorHost

Called when a new Coprocessor class is loaded

Specified by:: createEnvironment in class CoprocessorHost<MasterCoprocessorHost.MasterEnvironment>

preCreateNamespace

public boolean preCreateNamespace(NamespaceDescriptor ns)
                           throws IOException

Throws:: IOException

postCreateNamespace

public void postCreateNamespace(NamespaceDescriptor ns)
                         throws IOException

Throws:: IOException

preDeleteNamespace

public boolean preDeleteNamespace(String namespaceName)
                           throws IOException

Throws:: IOException

postDeleteNamespace

public void postDeleteNamespace(String namespaceName)
                         throws IOException

Throws:: IOException

preModifyNamespace

public boolean preModifyNamespace(NamespaceDescriptor ns)
                           throws IOException

Throws:: IOException

postModifyNamespace

public void postModifyNamespace(NamespaceDescriptor ns)
                         throws IOException

Throws:: IOException

preGetNamespaceDescriptor

public void preGetNamespaceDescriptor(String namespaceName)
                               throws IOException

Throws:: IOException

postGetNamespaceDescriptor

public void postGetNamespaceDescriptor(NamespaceDescriptor ns)
                                throws IOException

Throws:: IOException

preListNamespaceDescriptors

public boolean preListNamespaceDescriptors(List<NamespaceDescriptor> descriptors)
                                    throws IOException

Throws:: IOException

postListNamespaceDescriptors

public void postListNamespaceDescriptors(List<NamespaceDescriptor> descriptors)
                                  throws IOException

Throws:: IOException

preCreateTable

public void preCreateTable(HTableDescriptor htd,
                  HRegionInfo[] regions)
                    throws IOException

Throws:: IOException

postCreateTable

public void postCreateTable(HTableDescriptor htd,
                   HRegionInfo[] regions)
                     throws IOException

Throws:: IOException

preCreateTableHandler

public void preCreateTableHandler(HTableDescriptor htd,
                         HRegionInfo[] regions)
                           throws IOException

Throws:: IOException

postCreateTableHandler

public void postCreateTableHandler(HTableDescriptor htd,
                          HRegionInfo[] regions)
                            throws IOException

Throws:: IOException

preDeleteTable

public void preDeleteTable(TableName tableName)
                    throws IOException

Throws:: IOException

postDeleteTable

public void postDeleteTable(TableName tableName)
                     throws IOException

Throws:: IOException

preDeleteTableHandler

public void preDeleteTableHandler(TableName tableName)
                           throws IOException

Throws:: IOException

postDeleteTableHandler

public void postDeleteTableHandler(TableName tableName)
                            throws IOException

Throws:: IOException

preTruncateTable

public void preTruncateTable(TableName tableName)
                      throws IOException

Throws:: IOException

postTruncateTable

public void postTruncateTable(TableName tableName)
                       throws IOException

Throws:: IOException

preTruncateTableHandler

public void preTruncateTableHandler(TableName tableName)
                             throws IOException

Throws:: IOException

postTruncateTableHandler

public void postTruncateTableHandler(TableName tableName)
                              throws IOException

Throws:: IOException

preModifyTable

public void preModifyTable(TableName tableName,
                  HTableDescriptor htd)
                    throws IOException

Throws:: IOException

postModifyTable

public void postModifyTable(TableName tableName,
                   HTableDescriptor htd)
                     throws IOException

Throws:: IOException

preModifyTableHandler

public void preModifyTableHandler(TableName tableName,
                         HTableDescriptor htd)
                           throws IOException

Throws:: IOException

postModifyTableHandler

public void postModifyTableHandler(TableName tableName,
                          HTableDescriptor htd)
                            throws IOException

Throws:: IOException

preAddColumn

public boolean preAddColumn(TableName tableName,
                   HColumnDescriptor column)
                     throws IOException

Throws:: IOException

postAddColumn

public void postAddColumn(TableName tableName,
                 HColumnDescriptor column)
                   throws IOException

Throws:: IOException

preAddColumnHandler

public boolean preAddColumnHandler(TableName tableName,
                          HColumnDescriptor column)
                            throws IOException

Throws:: IOException

postAddColumnHandler

public void postAddColumnHandler(TableName tableName,
                        HColumnDescriptor column)
                          throws IOException

Throws:: IOException

preModifyColumn

public boolean preModifyColumn(TableName tableName,
                      HColumnDescriptor descriptor)
                        throws IOException

Throws:: IOException

postModifyColumn

public void postModifyColumn(TableName tableName,
                    HColumnDescriptor descriptor)
                      throws IOException

Throws:: IOException

preModifyColumnHandler

public boolean preModifyColumnHandler(TableName tableName,
                             HColumnDescriptor descriptor)
                               throws IOException

Throws:: IOException

postModifyColumnHandler

public void postModifyColumnHandler(TableName tableName,
                           HColumnDescriptor descriptor)
                             throws IOException

Throws:: IOException

preDeleteColumn

public boolean preDeleteColumn(TableName tableName,
                      byte[] c)
                        throws IOException

Throws:: IOException

postDeleteColumn

public void postDeleteColumn(TableName tableName,
                    byte[] c)
                      throws IOException

Throws:: IOException

preDeleteColumnHandler

public boolean preDeleteColumnHandler(TableName tableName,
                             byte[] c)
                               throws IOException

Throws:: IOException

postDeleteColumnHandler

public void postDeleteColumnHandler(TableName tableName,
                           byte[] c)
                             throws IOException

Throws:: IOException

preEnableTable

public void preEnableTable(TableName tableName)
                    throws IOException

Throws:: IOException

postEnableTable

public void postEnableTable(TableName tableName)
                     throws IOException

Throws:: IOException

preEnableTableHandler

public void preEnableTableHandler(TableName tableName)
                           throws IOException

Throws:: IOException

postEnableTableHandler

public void postEnableTableHandler(TableName tableName)
                            throws IOException

Throws:: IOException

preDisableTable

public void preDisableTable(TableName tableName)
                     throws IOException

Throws:: IOException

postDisableTable

public void postDisableTable(TableName tableName)
                      throws IOException

Throws:: IOException

preDisableTableHandler

public void preDisableTableHandler(TableName tableName)
                            throws IOException

Throws:: IOException

postDisableTableHandler

public void postDisableTableHandler(TableName tableName)
                             throws IOException

Throws:: IOException

preAbortProcedure

public boolean preAbortProcedure(ProcedureExecutor<MasterProcedureEnv> procEnv,
                        long procId)
                          throws IOException

Throws:: IOException

postAbortProcedure

public void postAbortProcedure()
                        throws IOException

Throws:: IOException

preListProcedures

public boolean preListProcedures()
                          throws IOException

Throws:: IOException

postListProcedures

public void postListProcedures(List<ProcedureInfo> procInfoList)
                        throws IOException

Throws:: IOException

preMove

public boolean preMove(HRegionInfo region,
              ServerName srcServer,
              ServerName destServer)
                throws IOException

Throws:: IOException

postMove

public void postMove(HRegionInfo region,
            ServerName srcServer,
            ServerName destServer)
              throws IOException

Throws:: IOException

preAssign

public boolean preAssign(HRegionInfo regionInfo)
                  throws IOException

Throws:: IOException

postAssign

public void postAssign(HRegionInfo regionInfo)
                throws IOException

Throws:: IOException

preUnassign

public boolean preUnassign(HRegionInfo regionInfo,
                  boolean force)
                    throws IOException

Throws:: IOException

postUnassign

public void postUnassign(HRegionInfo regionInfo,
                boolean force)
                  throws IOException

Throws:: IOException

preRegionOffline

public void preRegionOffline(HRegionInfo regionInfo)
                      throws IOException

Throws:: IOException

postRegionOffline

public void postRegionOffline(HRegionInfo regionInfo)
                       throws IOException

Throws:: IOException

preBalance

public boolean preBalance()
                   throws IOException

Throws:: IOException

postBalance

public void postBalance(List<RegionPlan> plans)
                 throws IOException

Throws:: IOException

preBalanceSwitch

public boolean preBalanceSwitch(boolean b)
                         throws IOException

Throws:: IOException

postBalanceSwitch

public void postBalanceSwitch(boolean oldValue,
                     boolean newValue)
                       throws IOException

Throws:: IOException

preShutdown

public void preShutdown()
                 throws IOException

Throws:: IOException

preStopMaster

public void preStopMaster()
                   throws IOException

Throws:: IOException

preMasterInitialization

public void preMasterInitialization()
                             throws IOException

Throws:: IOException

postStartMaster

public void postStartMaster()
                     throws IOException

Throws:: IOException

preSnapshot

public void preSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot,
               HTableDescriptor hTableDescriptor)
                 throws IOException

Throws:: IOException

postSnapshot

public void postSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot,
                HTableDescriptor hTableDescriptor)
                  throws IOException

Throws:: IOException

preListSnapshot

public void preListSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot)
                     throws IOException

Throws:: IOException

postListSnapshot

public void postListSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot)
                      throws IOException

Throws:: IOException

preCloneSnapshot

public void preCloneSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot,
                    HTableDescriptor hTableDescriptor)
                      throws IOException

Throws:: IOException

postCloneSnapshot

public void postCloneSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot,
                     HTableDescriptor hTableDescriptor)
                       throws IOException

Throws:: IOException

preRestoreSnapshot

public void preRestoreSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot,
                      HTableDescriptor hTableDescriptor)
                        throws IOException

Throws:: IOException

postRestoreSnapshot

public void postRestoreSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot,
                       HTableDescriptor hTableDescriptor)
                         throws IOException

Throws:: IOException

preDeleteSnapshot

public void preDeleteSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot)
                       throws IOException

Throws:: IOException

postDeleteSnapshot

public void postDeleteSnapshot(org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription snapshot)
                        throws IOException

Throws:: IOException

preGetTableDescriptors

@Deprecated
public boolean preGetTableDescriptors(List<TableName> tableNamesList,
                                        List<HTableDescriptor> descriptors)
                               throws IOException

Deprecated.

Throws:: IOException

postGetTableDescriptors

@Deprecated
public void postGetTableDescriptors(List<HTableDescriptor> descriptors)
                             throws IOException

Deprecated.

Throws:: IOException

preGetTableDescriptors

public boolean preGetTableDescriptors(List<TableName> tableNamesList,
                             List<HTableDescriptor> descriptors,
                             String regex)
                               throws IOException

Throws:: IOException

postGetTableDescriptors

public void postGetTableDescriptors(List<TableName> tableNamesList,
                           List<HTableDescriptor> descriptors,
                           String regex)
                             throws IOException

Throws:: IOException

preGetTableNames

public boolean preGetTableNames(List<HTableDescriptor> descriptors,
                       String regex)
                         throws IOException

Throws:: IOException

postGetTableNames

public void postGetTableNames(List<HTableDescriptor> descriptors,
                     String regex)
                       throws IOException

Throws:: IOException

preTableFlush

public void preTableFlush(TableName tableName)
                   throws IOException

Throws:: IOException

postTableFlush

public void postTableFlush(TableName tableName)
                    throws IOException

Throws:: IOException

preSetUserQuota

public void preSetUserQuota(String user,
                   org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)
                     throws IOException

Throws:: IOException

postSetUserQuota

public void postSetUserQuota(String user,
                    org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)
                      throws IOException

Throws:: IOException

preSetUserQuota

public void preSetUserQuota(String user,
                   TableName table,
                   org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)
                     throws IOException

Throws:: IOException

postSetUserQuota

public void postSetUserQuota(String user,
                    TableName table,
                    org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)
                      throws IOException

Throws:: IOException

preSetUserQuota

public void preSetUserQuota(String user,
                   String namespace,
                   org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)
                     throws IOException

Throws:: IOException

postSetUserQuota

public void postSetUserQuota(String user,
                    String namespace,
                    org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)
                      throws IOException

Throws:: IOException

preSetTableQuota

public void preSetTableQuota(TableName table,
                    org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)
                      throws IOException

Throws:: IOException

postSetTableQuota

public void postSetTableQuota(TableName table,
                     org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)
                       throws IOException

Throws:: IOException

preSetNamespaceQuota

public void preSetNamespaceQuota(String namespace,
                        org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)
                          throws IOException

Throws:: IOException

postSetNamespaceQuota

public void postSetNamespaceQuota(String namespace,
                         org.apache.hadoop.hbase.protobuf.generated.QuotaProtos.Quotas quotas)
                           throws IOException

Throws:: IOException

execOperationWithResult

private <T> T execOperationWithResult(T defaultValue,
                            MasterCoprocessorHost.CoprocessorOperationWithResult<T> ctx)
                           throws IOException

Throws:: IOException

execOperation

private boolean execOperation(MasterCoprocessorHost.CoprocessorOperation ctx)
                       throws IOException

Throws:: IOException

execShutdown
```
private boolean execShutdown(MasterCoprocessorHost.CoprocessorOperation ctx)
                      throws IOException
```
Master coprocessor classes can be configured in any order, based on that priority is set and chained in a sorted order. For preStopMaster()/preShutdown(), coprocessor methods are invoked in call() and environment is shutdown in postEnvCall().
Need to execute all coprocessor methods first then postEnvCall(), otherwise some coprocessors may remain shutdown if any exception occurs during next coprocessor execution which prevent Master stop or cluster shutdown. (Refer: HBASE-16663

Parameters:
ctx - CoprocessorOperation

Returns:
true if bypaas coprocessor execution, false if not.

Throws:

IOException

Class MasterCoprocessorHost

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.coprocessor.CoprocessorHost

Field Summary

Fields inherited from class org.apache.hadoop.hbase.coprocessor.CoprocessorHost

Constructor Summary

Method Summary

Methods inherited from class org.apache.hadoop.hbase.coprocessor.CoprocessorHost

Methods inherited from class java.lang.Object

Field Detail

LOG

masterServices

Constructor Detail

MasterCoprocessorHost

Method Detail

createEnvironment

preCreateNamespace

postCreateNamespace

preDeleteNamespace

postDeleteNamespace

preModifyNamespace

postModifyNamespace

preGetNamespaceDescriptor

postGetNamespaceDescriptor

preListNamespaceDescriptors

postListNamespaceDescriptors

preCreateTable

postCreateTable

preCreateTableHandler

postCreateTableHandler

preDeleteTable

postDeleteTable

preDeleteTableHandler

postDeleteTableHandler

preTruncateTable

postTruncateTable

preTruncateTableHandler

postTruncateTableHandler

preModifyTable

postModifyTable

preModifyTableHandler

postModifyTableHandler

preAddColumn

postAddColumn

preAddColumnHandler

postAddColumnHandler

preModifyColumn

postModifyColumn

preModifyColumnHandler

postModifyColumnHandler

preDeleteColumn

postDeleteColumn

preDeleteColumnHandler

postDeleteColumnHandler

preEnableTable

postEnableTable

preEnableTableHandler

postEnableTableHandler

preDisableTable

postDisableTable

preDisableTableHandler

postDisableTableHandler

preAbortProcedure

postAbortProcedure

preListProcedures

postListProcedures

preMove

postMove

preAssign

postAssign

preUnassign

postUnassign

preRegionOffline

postRegionOffline

preBalance

postBalance

preBalanceSwitch

postBalanceSwitch

preShutdown

preStopMaster