Class TableOperationsImpl
- java.lang.Object
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- org.apache.accumulo.core.client.impl.TableOperationsHelper
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- org.apache.accumulo.core.client.impl.TableOperationsImpl
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- All Implemented Interfaces:
TableOperations
public class TableOperationsImpl extends TableOperationsHelper
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Field Summary
Fields Modifier and Type Field Description static String
CLONE_EXCLUDE_PREFIX
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Constructor Summary
Constructors Constructor Description TableOperationsImpl(ClientContext context)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description int
addConstraint(String tableName, String constraintClassName)
Add a new constraint to a table.void
addSplits(String tableName, SortedSet<org.apache.hadoop.io.Text> partitionKeys)
Ensures that tablets are split along a set of keys.void
attachIterator(String tableName, IteratorSetting setting, EnumSet<IteratorUtil.IteratorScope> scopes)
Add an iterator to a table on the given scopes.void
cancelCompaction(String tableName)
Cancels a user initiated major compaction of a table initiated withTableOperations.compact(String, Text, Text, boolean, boolean)
orTableOperations.compact(String, Text, Text, List, boolean, boolean)
.void
clearLocatorCache(String tableName)
Clears the tablet locator cache for a specified tablevoid
clearSamplerConfiguration(String tableName)
Clear all sampling configuration properties on the table.void
clone(String srcTableName, String newTableName, boolean flush, Map<String,String> propertiesToSet, Set<String> propertiesToExclude)
Clone a table from an existing table.void
clone(String srcTableName, String newTableName, CloneConfiguration config)
Clone a table from an existing table.void
compact(String tableName, CompactionConfig config)
Starts a full major compaction of the tablets in the range (start, end].void
compact(String tableName, org.apache.hadoop.io.Text start, org.apache.hadoop.io.Text end, boolean flush, boolean wait)
Starts a full major compaction of the tablets in the range (start, end].void
compact(String tableName, org.apache.hadoop.io.Text start, org.apache.hadoop.io.Text end, List<IteratorSetting> iterators, boolean flush, boolean wait)
Starts a full major compaction of the tablets in the range (start, end].void
create(String tableName)
Create a table with no special configurationvoid
create(String tableName, boolean limitVersion)
Deprecated.void
create(String tableName, boolean limitVersion, TimeType timeType)
Deprecated.void
create(String tableName, NewTableConfiguration ntc)
protected IsolatedScanner
createMetadataScanner(String metaTable, Range range)
Create an IsolatedScanner over the given table, fetching the columns necessary to determine when a table has transitioned to online or offline.void
delete(String tableName)
Delete a tablevoid
deleteRows(String tableName, org.apache.hadoop.io.Text start, org.apache.hadoop.io.Text end)
Delete rows between (start, end]boolean
exists(String tableName)
A method to check if a table exists in Accumulo.void
exportTable(String tableName, String exportDir)
Exports a table.void
flush(String tableName)
Deprecated.void
flush(String tableName, org.apache.hadoop.io.Text start, org.apache.hadoop.io.Text end, boolean wait)
Flush a table's data that is currently in memory.List<DiskUsage>
getDiskUsage(Set<String> tableNames)
Gets the number of bytes being used in the files for a set of tablesstatic Map<String,String>
getExportedProps(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path)
Map<String,Set<org.apache.hadoop.io.Text>>
getLocalityGroups(String tableName)
Gets the locality groups currently set for a table.org.apache.hadoop.io.Text
getMaxRow(String tableName, Authorizations auths, org.apache.hadoop.io.Text startRow, boolean startInclusive, org.apache.hadoop.io.Text endRow, boolean endInclusive)
Finds the max row within a given range.Iterable<Map.Entry<String,String>>
getProperties(String tableName)
Gets properties of a table.SamplerConfiguration
getSamplerConfiguration(String tableName)
Reads the sampling configuration properties for a table.Collection<org.apache.hadoop.io.Text>
getSplits(String tableName)
Deprecated.Collection<org.apache.hadoop.io.Text>
getSplits(String tableName, int maxSplits)
Deprecated.void
importDirectory(String tableName, String dir, String failureDir, boolean setTime)
Bulk import all the files in a directory into a table.void
importTable(String tableName, String importDir)
Imports a table exported via exportTable and copied via hadoop distcp.SortedSet<String>
list()
Retrieve a list of tables in Accumulo.Collection<org.apache.hadoop.io.Text>
listSplits(String tableName)
Collection<org.apache.hadoop.io.Text>
listSplits(String tableName, int maxSplits)
Locations
locate(String tableName, Collection<Range> ranges)
Locates the tablet servers and tablets that would service a collections of ranges.void
merge(String tableName, org.apache.hadoop.io.Text start, org.apache.hadoop.io.Text end)
Merge tablets between (start, end]void
offline(String tableName)
Initiates taking a table offline, but does not wait for action to completevoid
offline(String tableName, boolean wait)
void
online(String tableName)
Initiates bringing a table online, but does not wait for action to completevoid
online(String tableName, boolean wait)
void
removeProperty(String tableName, String property)
Removes a property from a table.void
rename(String oldTableName, String newTableName)
Rename a tablevoid
setLocalityGroups(String tableName, Map<String,Set<org.apache.hadoop.io.Text>> groups)
Sets a table's locality groups.void
setProperty(String tableName, String property, String value)
Sets a property on a table.void
setSamplerConfiguration(String tableName, SamplerConfiguration samplerConfiguration)
Set or update the sampler configuration for a table.Set<Range>
splitRangeByTablets(String tableName, Range range, int maxSplits)
Map<String,String>
tableIdMap()
Get a mapping of table name to internal table id.boolean
testClassLoad(String tableName, String className, String asTypeName)
Test to see if the instance can load the given class as the given type.-
Methods inherited from class org.apache.accumulo.core.client.impl.TableOperationsHelper
attachIterator, checkIteratorConflicts, getIteratorSetting, listConstraints, listIterators, removeConstraint, removeIterator
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Field Detail
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CLONE_EXCLUDE_PREFIX
public static final String CLONE_EXCLUDE_PREFIX
- See Also:
- Constant Field Values
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Constructor Detail
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TableOperationsImpl
public TableOperationsImpl(ClientContext context)
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Method Detail
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list
public SortedSet<String> list()
Description copied from interface:TableOperations
Retrieve a list of tables in Accumulo.- Returns:
- List of tables in accumulo
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exists
public boolean exists(String tableName)
Description copied from interface:TableOperations
A method to check if a table exists in Accumulo.- Parameters:
tableName
- the name of the table- Returns:
- true if the table exists
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create
public void create(String tableName) throws AccumuloException, AccumuloSecurityException, TableExistsException
Description copied from interface:TableOperations
Create a table with no special configuration- Parameters:
tableName
- the name of the table- Throws:
AccumuloException
- if a general error occursAccumuloSecurityException
- if the user does not have permissionTableExistsException
- if the table already exists
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create
@Deprecated public void create(String tableName, boolean limitVersion) throws AccumuloException, AccumuloSecurityException, TableExistsException
Deprecated.- Parameters:
tableName
- the name of the tablelimitVersion
- Enables/disables the versioning iterator, which will limit the number of Key versions kept.- Throws:
AccumuloException
- if a general error occursAccumuloSecurityException
- if the user does not have permissionTableExistsException
- if the table already exists
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create
@Deprecated public void create(String tableName, boolean limitVersion, TimeType timeType) throws AccumuloException, AccumuloSecurityException, TableExistsException
Deprecated.- Parameters:
tableName
- the name of the tablelimitVersion
- Enables/disables the versioning iterator, which will limit the number of Key versions kept.timeType
- specifies logical or real-time based time recording for entries in the table- Throws:
AccumuloException
- if a general error occursAccumuloSecurityException
- if the user does not have permissionTableExistsException
- if the table already exists
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create
public void create(String tableName, NewTableConfiguration ntc) throws AccumuloException, AccumuloSecurityException, TableExistsException
- Parameters:
tableName
- the name of the tablentc
- specifies the new table's configuration variable, which are: 1. enable/disable the versioning iterator, which will limit the number of Key versions kept; 2. specifies logical or real-time based time recording for entries in the table; 3. user defined properties to be merged into the initial properties of the table- Throws:
AccumuloException
- if a general error occursAccumuloSecurityException
- if the user does not have permissionTableExistsException
- if the table already exists
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addSplits
public void addSplits(String tableName, SortedSet<org.apache.hadoop.io.Text> partitionKeys) throws TableNotFoundException, AccumuloException, AccumuloSecurityException
Description copied from interface:TableOperations
Ensures that tablets are split along a set of keys.Note that while the documentation for Text specifies that its bytestream should be UTF-8, the encoding is not enforced by operations that work with byte arrays.
For example, you can create 256 evenly-sliced splits via the following code sample even though the given byte sequences are not valid UTF-8.
TableOperations tableOps = connector.tableOperations(); TreeSet<Text> splits = new TreeSet<Text>(); for (int i = 0; i < 256; i++) { byte[] bytes = {(byte) i}; splits.add(new Text(bytes)); } tableOps.addSplits(TABLE_NAME, splits);
- Parameters:
tableName
- the name of the tablepartitionKeys
- a sorted set of row key values to pre-split the table on- Throws:
TableNotFoundException
- if the table does not existAccumuloException
- if a general error occursAccumuloSecurityException
- if the user does not have permission
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merge
public void merge(String tableName, org.apache.hadoop.io.Text start, org.apache.hadoop.io.Text end) throws AccumuloException, AccumuloSecurityException, TableNotFoundException
Description copied from interface:TableOperations
Merge tablets between (start, end]- Parameters:
tableName
- the table to mergestart
- first tablet to be merged contains the row after this row, null means the first tabletend
- last tablet to be merged contains this row, null means the last tablet- Throws:
AccumuloException
AccumuloSecurityException
TableNotFoundException
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deleteRows
public void deleteRows(String tableName, org.apache.hadoop.io.Text start, org.apache.hadoop.io.Text end) throws AccumuloException, AccumuloSecurityException, TableNotFoundException
Description copied from interface:TableOperations
Delete rows between (start, end]- Parameters:
tableName
- the table to mergestart
- delete rows after this, null means the first row of the tableend
- last row to be deleted, inclusive, null means the last row of the table- Throws:
AccumuloException
AccumuloSecurityException
TableNotFoundException
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listSplits
public Collection<org.apache.hadoop.io.Text> listSplits(String tableName) throws TableNotFoundException, AccumuloSecurityException
- Parameters:
tableName
- the name of the table- Returns:
- the split points (end-row names) for the table's current split profile
- Throws:
TableNotFoundException
- if the table does not existAccumuloSecurityException
- if the user does not have permission
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getSplits
@Deprecated public Collection<org.apache.hadoop.io.Text> getSplits(String tableName) throws TableNotFoundException
Deprecated.- Parameters:
tableName
- the name of the table- Returns:
- the split points (end-row names) for the table's current split profile
- Throws:
TableNotFoundException
- if the table does not exist
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listSplits
public Collection<org.apache.hadoop.io.Text> listSplits(String tableName, int maxSplits) throws TableNotFoundException, AccumuloSecurityException
- Parameters:
tableName
- the name of the tablemaxSplits
- specifies the maximum number of splits to return- Returns:
- the split points (end-row names) for the table's current split profile, grouped into fewer splits so as not to exceed maxSplits
- Throws:
AccumuloSecurityException
- if the user does not have permissionTableNotFoundException
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getSplits
@Deprecated public Collection<org.apache.hadoop.io.Text> getSplits(String tableName, int maxSplits) throws TableNotFoundException
Deprecated.- Parameters:
tableName
- the name of the tablemaxSplits
- specifies the maximum number of splits to return- Returns:
- the split points (end-row names) for the table's current split profile, grouped into fewer splits so as not to exceed maxSplits
- Throws:
TableNotFoundException
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delete
public void delete(String tableName) throws AccumuloException, AccumuloSecurityException, TableNotFoundException
Description copied from interface:TableOperations
Delete a table- Parameters:
tableName
- the name of the table- Throws:
AccumuloException
- if a general error occursAccumuloSecurityException
- if the user does not have permissionTableNotFoundException
- if the table does not exist
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clone
public void clone(String srcTableName, String newTableName, boolean flush, Map<String,String> propertiesToSet, Set<String> propertiesToExclude) throws AccumuloSecurityException, TableNotFoundException, AccumuloException, TableExistsException
Description copied from interface:TableOperations
Clone a table from an existing table. The cloned table will have the same data as the source table it was created from. After cloning, the two tables can mutate independently. Initially the cloned table should not use any extra space, however as the source table and cloned table major compact extra space will be used by the clone. Initially the cloned table is only readable and writable by the user who created it.- Parameters:
srcTableName
- the table to clonenewTableName
- the name of the cloneflush
- determines if memory is flushed in the source table before cloning.propertiesToSet
- the sources tables properties are copied, this allows overriding of those propertiespropertiesToExclude
- do not copy these properties from the source table, just revert to system defaults- Throws:
AccumuloSecurityException
TableNotFoundException
AccumuloException
TableExistsException
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clone
public void clone(String srcTableName, String newTableName, CloneConfiguration config) throws AccumuloSecurityException, TableNotFoundException, AccumuloException, TableExistsException
Description copied from interface:TableOperations
Clone a table from an existing table. The cloned table will have the same data as the source table it was created from. After cloning, the two tables can mutate independently. Initially the cloned table should not use any extra space, however as the source table and cloned table major compact extra space will be used by the clone. Initially the cloned table is only readable and writable by the user who created it.- Parameters:
srcTableName
- the table to clonenewTableName
- the name of the cloneconfig
- the clone command configuration- Throws:
AccumuloSecurityException
TableNotFoundException
AccumuloException
TableExistsException
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rename
public void rename(String oldTableName, String newTableName) throws AccumuloSecurityException, TableNotFoundException, AccumuloException, TableExistsException
Description copied from interface:TableOperations
Rename a table- Parameters:
oldTableName
- the old table namenewTableName
- the new table name, which must be in the same namespace as the oldTableName- Throws:
AccumuloSecurityException
- if the user does not have permissionTableNotFoundException
- if the old table name does not existAccumuloException
- if a general error occursTableExistsException
- if the new table name already exists
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flush
@Deprecated public void flush(String tableName) throws AccumuloException, AccumuloSecurityException
Deprecated.Description copied from interface:TableOperations
Initiate a flush of a table's data that is in memory- Parameters:
tableName
- the name of the table- Throws:
AccumuloException
- if a general error occursAccumuloSecurityException
- if the user does not have permission
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flush
public void flush(String tableName, org.apache.hadoop.io.Text start, org.apache.hadoop.io.Text end, boolean wait) throws AccumuloException, AccumuloSecurityException, TableNotFoundException
Description copied from interface:TableOperations
Flush a table's data that is currently in memory.- Parameters:
tableName
- the name of the tablewait
- if true the call will not return until all data present in memory when the call was is flushed if false will initiate a flush of data in memory, but will not wait for it to complete- Throws:
AccumuloException
- if a general error occursAccumuloSecurityException
- if the user does not have permissionTableNotFoundException
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compact
public void compact(String tableName, org.apache.hadoop.io.Text start, org.apache.hadoop.io.Text end, boolean flush, boolean wait) throws AccumuloSecurityException, TableNotFoundException, AccumuloException
Description copied from interface:TableOperations
Starts a full major compaction of the tablets in the range (start, end]. The compaction is preformed even for tablets that have only one file.- Parameters:
tableName
- the table to compactstart
- first tablet to be compacted contains the row after this row, null means the first tablet in tableend
- last tablet to be compacted contains this row, null means the last tablet in tableflush
- when true, table memory is flushed before compaction startswait
- when true, the call will not return until compactions are finished- Throws:
AccumuloSecurityException
TableNotFoundException
AccumuloException
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compact
public void compact(String tableName, org.apache.hadoop.io.Text start, org.apache.hadoop.io.Text end, List<IteratorSetting> iterators, boolean flush, boolean wait) throws AccumuloSecurityException, TableNotFoundException, AccumuloException
Description copied from interface:TableOperations
Starts a full major compaction of the tablets in the range (start, end]. The compaction is preformed even for tablets that have only one file.- Parameters:
tableName
- the table to compactstart
- first tablet to be compacted contains the row after this row, null means the first tablet in tableend
- last tablet to be compacted contains this row, null means the last tablet in tableiterators
- A set of iterators that will be applied to each tablet compacted. If two or more concurrent calls to compact pass iterators, then only one will succeed and the others will fail.flush
- when true, table memory is flushed before compaction startswait
- when true, the call will not return until compactions are finished- Throws:
AccumuloSecurityException
TableNotFoundException
AccumuloException
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compact
public void compact(String tableName, CompactionConfig config) throws AccumuloSecurityException, TableNotFoundException, AccumuloException
Description copied from interface:TableOperations
Starts a full major compaction of the tablets in the range (start, end]. If the config does not specify a compaction strategy, then all files in a tablet are compacted. The compaction is performed even for tablets that have only one file.Only one compact call at a time can pass iterators and/or a compaction strategy. If two threads call compaction with iterators and/or a copmaction strategy, then one will fail.
- Parameters:
tableName
- the table to compactconfig
- the configuration to use- Throws:
AccumuloSecurityException
TableNotFoundException
AccumuloException
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cancelCompaction
public void cancelCompaction(String tableName) throws AccumuloSecurityException, TableNotFoundException, AccumuloException
Description copied from interface:TableOperations
Cancels a user initiated major compaction of a table initiated withTableOperations.compact(String, Text, Text, boolean, boolean)
orTableOperations.compact(String, Text, Text, List, boolean, boolean)
. Compactions of tablets that are currently running may finish, but new compactions of tablets will not start.- Parameters:
tableName
- the name of the table- Throws:
AccumuloSecurityException
- if the user does not have permissionTableNotFoundException
- if the table does not existAccumuloException
- if a general error occurs
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setProperty
public void setProperty(String tableName, String property, String value) throws AccumuloException, AccumuloSecurityException
Description copied from interface:TableOperations
Sets a property on a table. This operation is asynchronous and eventually consistent. Not all tablets in a table will acknowledge this new value immediately nor at the same time. Within a few seconds without another change, all tablets in a table should see the updated value. The clone table feature can be used if consistency is required.- Parameters:
tableName
- the name of the tableproperty
- the name of a per-table propertyvalue
- the value to set a per-table property to- Throws:
AccumuloException
- if a general error occursAccumuloSecurityException
- if the user does not have permission
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removeProperty
public void removeProperty(String tableName, String property) throws AccumuloException, AccumuloSecurityException
Description copied from interface:TableOperations
Removes a property from a table. This operation is asynchronous and eventually consistent. Not all tablets in a table will acknowledge this altered value immediately nor at the same time. Within a few seconds without another change, all tablets in a table should see the altered value. The clone table feature can be used if consistency is required.- Parameters:
tableName
- the name of the tableproperty
- the name of a per-table property- Throws:
AccumuloException
- if a general error occursAccumuloSecurityException
- if the user does not have permission
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getProperties
public Iterable<Map.Entry<String,String>> getProperties(String tableName) throws AccumuloException, TableNotFoundException
Description copied from interface:TableOperations
Gets properties of a table. This operation is asynchronous and eventually consistent. It is not guaranteed that all tablets in a table will return the same values. Within a few seconds without another change, all tablets in a table should be consistent. The clone table feature can be used if consistency is required.- Parameters:
tableName
- the name of the table- Returns:
- all properties visible by this table (system and per-table properties). Note that recently changed properties may not be visible immediately.
- Throws:
TableNotFoundException
- if the table does not existAccumuloException
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setLocalityGroups
public void setLocalityGroups(String tableName, Map<String,Set<org.apache.hadoop.io.Text>> groups) throws AccumuloException, AccumuloSecurityException, TableNotFoundException
Description copied from interface:TableOperations
Sets a table's locality groups. A table's locality groups can be changed at any time.- Parameters:
tableName
- the name of the tablegroups
- mapping of locality group names to column families in the locality group- Throws:
AccumuloException
- if a general error occursAccumuloSecurityException
- if the user does not have permissionTableNotFoundException
- if the table does not exist
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getLocalityGroups
public Map<String,Set<org.apache.hadoop.io.Text>> getLocalityGroups(String tableName) throws AccumuloException, TableNotFoundException
Description copied from interface:TableOperations
Gets the locality groups currently set for a table.- Parameters:
tableName
- the name of the table- Returns:
- mapping of locality group names to column families in the locality group
- Throws:
AccumuloException
- if a general error occursTableNotFoundException
- if the table does not exist
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splitRangeByTablets
public Set<Range> splitRangeByTablets(String tableName, Range range, int maxSplits) throws AccumuloException, AccumuloSecurityException, TableNotFoundException
- Parameters:
tableName
- the name of the tablerange
- a range to splitmaxSplits
- the maximum number of splits- Returns:
- the range, split into smaller ranges that fall on boundaries of the table's split points as evenly as possible
- Throws:
AccumuloException
- if a general error occursAccumuloSecurityException
- if the user does not have permissionTableNotFoundException
- if the table does not exist
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importDirectory
public void importDirectory(String tableName, String dir, String failureDir, boolean setTime) throws IOException, AccumuloSecurityException, TableNotFoundException, AccumuloException
Description copied from interface:TableOperations
Bulk import all the files in a directory into a table. Files can be created usingAccumuloFileOutputFormat
andRFile.newWriter()
- Parameters:
tableName
- the name of the tabledir
- the HDFS directory to find files for importingfailureDir
- the HDFS directory to place files that failed to be imported, must exist and be emptysetTime
- override the time values in the input files, and use the current time for all mutations- Throws:
IOException
- when there is an error reading/writing to HDFSAccumuloSecurityException
- when the user does not have the proper permissionsTableNotFoundException
- when the table no longer existsAccumuloException
- when there is a general accumulo error
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createMetadataScanner
protected IsolatedScanner createMetadataScanner(String metaTable, Range range) throws TableNotFoundException, AccumuloException, AccumuloSecurityException
Create an IsolatedScanner over the given table, fetching the columns necessary to determine when a table has transitioned to online or offline.
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offline
public void offline(String tableName) throws AccumuloSecurityException, AccumuloException, TableNotFoundException
Description copied from interface:TableOperations
Initiates taking a table offline, but does not wait for action to complete- Parameters:
tableName
- the table to take offline- Throws:
AccumuloSecurityException
- when the user does not have the proper permissionsAccumuloException
- when there is a general accumulo errorTableNotFoundException
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offline
public void offline(String tableName, boolean wait) throws AccumuloSecurityException, AccumuloException, TableNotFoundException
- Parameters:
tableName
- the table to take offlinewait
- if true, then will not return until table is offline- Throws:
AccumuloSecurityException
- when the user does not have the proper permissionsAccumuloException
- when there is a general accumulo errorTableNotFoundException
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online
public void online(String tableName) throws AccumuloSecurityException, AccumuloException, TableNotFoundException
Description copied from interface:TableOperations
Initiates bringing a table online, but does not wait for action to complete- Parameters:
tableName
- the table to take online- Throws:
AccumuloSecurityException
- when the user does not have the proper permissionsAccumuloException
- when there is a general accumulo errorTableNotFoundException
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online
public void online(String tableName, boolean wait) throws AccumuloSecurityException, AccumuloException, TableNotFoundException
- Parameters:
tableName
- the table to take onlinewait
- if true, then will not return until table is online- Throws:
AccumuloSecurityException
- when the user does not have the proper permissionsAccumuloException
- when there is a general accumulo errorTableNotFoundException
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clearLocatorCache
public void clearLocatorCache(String tableName) throws TableNotFoundException
Description copied from interface:TableOperations
Clears the tablet locator cache for a specified table- Parameters:
tableName
- the name of the table- Throws:
TableNotFoundException
- if table does not exist
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tableIdMap
public Map<String,String> tableIdMap()
Description copied from interface:TableOperations
Get a mapping of table name to internal table id.- Returns:
- the map from table name to internal table id
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getMaxRow
public org.apache.hadoop.io.Text getMaxRow(String tableName, Authorizations auths, org.apache.hadoop.io.Text startRow, boolean startInclusive, org.apache.hadoop.io.Text endRow, boolean endInclusive) throws TableNotFoundException, AccumuloException, AccumuloSecurityException
Description copied from interface:TableOperations
Finds the max row within a given range. To find the max row in a table, pass null for start and end row.auths
- find the max row that can seen with these authsstartRow
- row to start looking at, null means -InfinitystartInclusive
- determines if the start row is includedendRow
- row to stop looking at, null means InfinityendInclusive
- determines if the end row is included- Returns:
- The max row in the range, or null if there is no visible data in the range.
- Throws:
TableNotFoundException
AccumuloException
AccumuloSecurityException
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getDiskUsage
public List<DiskUsage> getDiskUsage(Set<String> tableNames) throws AccumuloException, AccumuloSecurityException, TableNotFoundException
Description copied from interface:TableOperations
Gets the number of bytes being used in the files for a set of tables- Parameters:
tableNames
- a set of tables- Returns:
- a list of disk usage objects containing linked table names and sizes
- Throws:
AccumuloException
AccumuloSecurityException
TableNotFoundException
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getExportedProps
public static Map<String,String> getExportedProps(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path) throws IOException
- Throws:
IOException
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importTable
public void importTable(String tableName, String importDir) throws TableExistsException, AccumuloException, AccumuloSecurityException
Description copied from interface:TableOperations
Imports a table exported via exportTable and copied via hadoop distcp.- Parameters:
tableName
- Name of a table to create and import into.importDir
- Directory that contains the files copied by distcp from exportTable- Throws:
TableExistsException
AccumuloException
AccumuloSecurityException
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exportTable
public void exportTable(String tableName, String exportDir) throws TableNotFoundException, AccumuloException, AccumuloSecurityException
Description copied from interface:TableOperations
Exports a table. The tables data is not exported, just table metadata and a list of files to distcp. The table being exported must be offline and stay offline for the duration of distcp. To avoid losing access to a table it can be cloned and the clone taken offline for export.See docs/examples/README.export
- Parameters:
tableName
- Name of the table to export.exportDir
- An empty directory in HDFS where files containing table metadata and list of files to distcp will be placed.- Throws:
TableNotFoundException
AccumuloException
AccumuloSecurityException
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testClassLoad
public boolean testClassLoad(String tableName, String className, String asTypeName) throws TableNotFoundException, AccumuloException, AccumuloSecurityException
Description copied from interface:TableOperations
Test to see if the instance can load the given class as the given type. This check uses the table classpath if it is set.- Returns:
- true if the instance can load the given class as the given type, false otherwise
- Throws:
TableNotFoundException
AccumuloException
AccumuloSecurityException
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attachIterator
public void attachIterator(String tableName, IteratorSetting setting, EnumSet<IteratorUtil.IteratorScope> scopes) throws AccumuloSecurityException, AccumuloException, TableNotFoundException
Description copied from interface:TableOperations
Add an iterator to a table on the given scopes.- Specified by:
attachIterator
in interfaceTableOperations
- Overrides:
attachIterator
in classTableOperationsHelper
- Parameters:
tableName
- the name of the tablesetting
- object specifying the properties of the iterator- Throws:
AccumuloSecurityException
- thrown if the user does not have the ability to set properties on the tableTableNotFoundException
- throw if the table no longer existsAccumuloException
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addConstraint
public int addConstraint(String tableName, String constraintClassName) throws AccumuloException, AccumuloSecurityException, TableNotFoundException
Description copied from interface:TableOperations
Add a new constraint to a table.- Specified by:
addConstraint
in interfaceTableOperations
- Overrides:
addConstraint
in classTableOperationsHelper
- Parameters:
tableName
- the name of the tableconstraintClassName
- the full name of the constraint class- Returns:
- the unique number assigned to the constraint
- Throws:
AccumuloException
- thrown if the constraint has already been added to the table or if there are errors in the configuration of existing constraintsAccumuloSecurityException
- thrown if the user doesn't have permission to add the constraintTableNotFoundException
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setSamplerConfiguration
public void setSamplerConfiguration(String tableName, SamplerConfiguration samplerConfiguration) throws AccumuloException, TableNotFoundException, AccumuloSecurityException
Description copied from interface:TableOperations
Set or update the sampler configuration for a table. If the table has existing sampler configuration, those properties will be cleared before setting the new table properties.- Parameters:
tableName
- the name of the table- Throws:
AccumuloException
TableNotFoundException
AccumuloSecurityException
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clearSamplerConfiguration
public void clearSamplerConfiguration(String tableName) throws AccumuloException, TableNotFoundException, AccumuloSecurityException
Description copied from interface:TableOperations
Clear all sampling configuration properties on the table.- Parameters:
tableName
- the name of the table- Throws:
AccumuloException
TableNotFoundException
AccumuloSecurityException
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getSamplerConfiguration
public SamplerConfiguration getSamplerConfiguration(String tableName) throws TableNotFoundException, AccumuloException
Description copied from interface:TableOperations
Reads the sampling configuration properties for a table.- Parameters:
tableName
- the name of the table- Throws:
TableNotFoundException
AccumuloException
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locate
public Locations locate(String tableName, Collection<Range> ranges) throws AccumuloException, AccumuloSecurityException, TableNotFoundException
Description copied from interface:TableOperations
Locates the tablet servers and tablets that would service a collections of ranges. If a range covers multiple tablets, it will occur multiple times in the returned map.ranges
- The input ranges that should be mapped to tablet servers and tablets.- Throws:
AccumuloException
AccumuloSecurityException
TableNotFoundException
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