hydra

Class Nuker

java.lang.Object

hydra.Nuker

public class Nuker
extends Object

Supports cleaning up after hydra runs. Generates executable scripts in the test directory such as nukerun.sh or nukerun.bat that kills all processes for that test. Additional scripts are generated dor dumping stacks, dumping heap, and moving remote test directories (where applicable).

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	HDFS_DIRS
protected static String	UNIX_SYSDIRS
protected static String	WINDOWS_SYSDIRS

Method Summary

Modifier and Type	Method and Description
protected Set	getDirectories() Returns the known test artifact directories.
static Nuker	getInstance() Returns the singleton instance of the nuker.
protected String	getNukePIDCmd(HostDescription hd, int pid) The Reboot API fetches the nuke command for removing hostagent PIDs from the nukerun script before rebooting, since the hostagent is needed to produce the command after rebooting.
protected static void	initialize(HostDescription hd)
protected void	recordDir(HostDescription hd, String name, String dir) Records a remote directory for later move.
protected void	recordHDFSDir(HostDescription hd, HadoopPrms.NodeType nodeType, String dir, boolean moveAfterTest) Records a remote HDFS directory for later move.
void	recordHDFSDir(String hadoopDist, String url, boolean moveAfterTest) Records a remote HDFS directory in an existing cluster for later removal.
protected void	recordHDFSPIDNoDumps(HostDescription hd, int pid, boolean secure) Records a Hadoop PID in the nukehadoop script.
protected void	recordPID(HostDescription hd, int pid) Records a PID in the nukerun, dumprun, and heapdumprun scripts.
protected void	recordPIDNoDumps(HostDescription hd, int pid) Records a PID in the nukerun script.
void	recordRootCommand(HostDescription hd, String cmd, String dir) Records a root command in moveHadoop.sh for secure HDFS.
protected void	removeHDFSPIDNoDumps(HostDescription hd, int pid, boolean secure) Removes an HDFS PID from the nukehadoop scripts.
protected void	removePID(HostDescription hd, int pid) Removes a PID from the nukerun, dumprun, and heapdumprun scripts.
protected void	removePIDNoDumps(HostDescription hd, int pid) Removes a PID from the nukerun scripts.
protected void	removePIDNoDumps(String ncmd) Removes a PID from the nukerun scripts using the given nuke command.
protected String	wrapCommand(String cmd, HostDescription hd)
protected String	wrapRootCommand(String cmd, HostDescription hd)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

UNIX_SYSDIRS

protected static final String UNIX_SYSDIRS

See Also:

Constant Field Values

WINDOWS_SYSDIRS

protected static final String WINDOWS_SYSDIRS

See Also:

Constant Field Values

HDFS_DIRS

protected static final String HDFS_DIRS

See Also:

Constant Field Values

Method Detail

initialize

protected static void initialize(HostDescription hd)

getInstance

public static Nuker getInstance()

Returns the singleton instance of the nuker. All hydra client access goes through the master proxy. For hydra master use only.

getDirectories

protected Set getDirectories()

Returns the known test artifact directories.

recordRootCommand

public void recordRootCommand(HostDescription hd,
                              String cmd,
                              String dir)

Records a root command in moveHadoop.sh for secure HDFS.

wrapRootCommand

protected String wrapRootCommand(String cmd,
                                 HostDescription hd)

recordHDFSDir

public void recordHDFSDir(String hadoopDist,
                          String url,
                          boolean moveAfterTest)

Records a remote HDFS directory in an existing cluster for later removal.

recordHDFSDir

protected void recordHDFSDir(HostDescription hd,
                             HadoopPrms.NodeType nodeType,
                             String dir,
                             boolean moveAfterTest)

Records a remote HDFS directory for later move. Adds both local and remote directories to the HDFS directory list in HDFS_DIRS to support both runtime use by clients and script use by the master controller and batterytest.

recordDir

protected void recordDir(HostDescription hd,
                         String name,
                         String dir)

Records a remote directory for later move. Adds it to the directory list for all platforms needed to support both runtime use by clients and script use by the master controller and batterytest.

recordPIDNoDumps

protected void recordPIDNoDumps(HostDescription hd,
                                int pid)

Records a PID in the nukerun script.

recordPID

protected void recordPID(HostDescription hd,
                         int pid)

Records a PID in the nukerun, dumprun, and heapdumprun scripts. For internal hydra use only.

recordHDFSPIDNoDumps

protected void recordHDFSPIDNoDumps(HostDescription hd,
                                    int pid,
                                    boolean secure)

Records a Hadoop PID in the nukehadoop script.

removePIDNoDumps

protected void removePIDNoDumps(String ncmd)

Removes a PID from the nukerun scripts using the given nuke command. Used by the Reboot API for removing hostagent PIDs.

removePIDNoDumps

protected void removePIDNoDumps(HostDescription hd,
                                int pid)

Removes a PID from the nukerun scripts.

removePID

protected void removePID(HostDescription hd,
                         int pid)

Removes a PID from the nukerun, dumprun, and heapdumprun scripts. For internal hydra use only.

removeHDFSPIDNoDumps

protected void removeHDFSPIDNoDumps(HostDescription hd,
                                    int pid,
                                    boolean secure)

Removes an HDFS PID from the nukehadoop scripts.

getNukePIDCmd

protected String getNukePIDCmd(HostDescription hd,
                               int pid)

The Reboot API fetches the nuke command for removing hostagent PIDs from the nukerun script before rebooting, since the hostagent is needed to produce the command after rebooting.

wrapCommand

protected String wrapCommand(String cmd,
                             HostDescription hd)