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YARN-1775. Enhanced ProcfsBasedProcessTree to optionally add the ability to use smaps for obtaining used memory information. Contributed by Rajesh Balamohan. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1580087 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Vinod Kumar Vavilapalli 2014-03-22 00:01:59 +00:00
parent f67218809c
commit 06579878df
6 changed files with 780 additions and 216 deletions
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4
hadoop-yarn-project/CHANGES.txt
View File

@ -178,6 +178,10 @@ Release 2.4.0 - UNRELEASED
YARN-1690. Made DistributedShell send timeline entities+events. (Mayank Bansal
via zjshen)
YARN-1775. Enhanced ProcfsBasedProcessTree to optionally add the ability to
use smaps for obtaining used memory information. (Rajesh Balamohan via
vinodkv)
IMPROVEMENTS
YARN-1007. Enhance History Reader interface for Containers. (Mayank Bansal via

4
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
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@ -718,6 +718,10 @@ public class YarnConfiguration extends Configuration {
/** Class that calculates process tree resource utilization.*/
public static final String NM_CONTAINER_MON_PROCESS_TREE =
NM_PREFIX + "container-monitor.process-tree.class";
public static final String PROCFS_USE_SMAPS_BASED_RSS_ENABLED = NM_PREFIX +
".container-monitor.procfs-tree.smaps-based-rss.enabled";
public static final boolean DEFAULT_PROCFS_USE_SMAPS_BASED_RSS_ENABLED =
false;
/** Prefix for all node manager disk health checker configs. */
private static final String NM_DISK_HEALTH_CHECK_PREFIX =

358
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/ProcfsBasedProcessTree.java
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@ -20,6 +20,7 @@ package org.apache.hadoop.yarn.util;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
@ -32,13 +33,16 @@ import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.commons.io.IOUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.util.Shell;
import org.apache.hadoop.util.Shell.ShellCommandExecutor;
import org.apache.hadoop.util.StringUtils;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
/**
* A Proc file-system based ProcessTree. Works only on Linux.
@ -61,7 +65,46 @@ public class ProcfsBasedProcessTree extends ResourceCalculatorProcessTree {
public static final String PROCFS_CMDLINE_FILE = "cmdline";
public static final long PAGE_SIZE;
public static final long JIFFY_LENGTH_IN_MILLIS; // in millisecond
enum MemInfo {
SIZE("Size"), RSS("Rss"), PSS("Pss"), SHARED_CLEAN("Shared_Clean"),
SHARED_DIRTY("Shared_Dirty"), PRIVATE_CLEAN("Private_Clean"),
PRIVATE_DIRTY("Private_Dirty"), REFERENCED("Referenced"), ANONYMOUS(
"Anonymous"), ANON_HUGE_PAGES("AnonHugePages"), SWAP("swap"),
KERNEL_PAGE_SIZE("kernelPageSize"), MMU_PAGE_SIZE("mmuPageSize"), INVALID(
"invalid");
private String name;
private MemInfo(String name) {
this.name = name;
}
public static MemInfo getMemInfoByName(String name) {
for (MemInfo info : MemInfo.values()) {
if (info.name.trim().equalsIgnoreCase(name.trim())) {
return info;
}
}
return INVALID;
}
}
public static final String SMAPS = "smaps";
public static final int KB_TO_BYTES = 1024;
private static final String KB = "kB";
private static final String READ_ONLY_WITH_SHARED_PERMISSION = "r--s";
private static final String READ_EXECUTE_WITH_SHARED_PERMISSION = "r-xs";
private static final Pattern ADDRESS_PATTERN = Pattern
.compile("([[a-f]|(0-9)]*)-([[a-f]|(0-9)]*)(\\s)*([rxwps\\-]*)");
private static final Pattern MEM_INFO_PATTERN = Pattern
.compile("(^[A-Z].*):[\\s ]*(.*)");
private boolean smapsEnabled;
protected Map<String, ProcessTreeSmapMemInfo> processSMAPTree =
new HashMap<String, ProcessTreeSmapMemInfo>();
static {
long jiffiesPerSecond = -1;
long pageSize = -1;
@ -103,6 +146,16 @@ public class ProcfsBasedProcessTree extends ResourceCalculatorProcessTree {
this(pid, PROCFS);
}
@Override
public void setConf(Configuration conf) {
super.setConf(conf);
if (conf != null) {
smapsEnabled =
conf.getBoolean(YarnConfiguration.PROCFS_USE_SMAPS_BASED_RSS_ENABLED,
YarnConfiguration.DEFAULT_PROCFS_USE_SMAPS_BASED_RSS_ENABLED);
}
}
/**
* Build a new process tree rooted at the pid.
*
@ -210,6 +263,18 @@ public class ProcfsBasedProcessTree extends ResourceCalculatorProcessTree {
// Log.debug the ProcfsBasedProcessTree
LOG.debug(this.toString());
}
if (smapsEnabled) {
//Update smaps info
processSMAPTree.clear();
for (ProcessInfo p : processTree.values()) {
if (p != null) {
// Get information for each process
ProcessTreeSmapMemInfo memInfo = new ProcessTreeSmapMemInfo(p.getPid());
constructProcessSMAPInfo(memInfo, procfsDir);
processSMAPTree.put(p.getPid(), memInfo);
}
}
}
}
}
@ -300,6 +365,9 @@ public class ProcfsBasedProcessTree extends ResourceCalculatorProcessTree {
if (PAGE_SIZE < 0) {
return 0;
}
if (smapsEnabled) {
return getSmapBasedCumulativeRssmem(olderThanAge);
}
long totalPages = 0;
for (ProcessInfo p : processTree.values()) {
if ((p != null) && (p.getAge() > olderThanAge)) {
@ -309,6 +377,53 @@ public class ProcfsBasedProcessTree extends ResourceCalculatorProcessTree {
return totalPages * PAGE_SIZE; // convert # pages to byte
}
/**
* Get the cumulative resident set size (RSS) memory used by all the processes
* in the process-tree that are older than the passed in age. RSS is
* calculated based on SMAP information. Skip mappings with "r--s", "r-xs"
* permissions to get real RSS usage of the process.
*
* @param olderThanAge
* processes above this age are included in the memory addition
* @return cumulative rss memory used by the process-tree in bytes, for
* processes older than this age. return 0 if it cannot be calculated
*/
private long getSmapBasedCumulativeRssmem(int olderThanAge) {
long total = 0;
for (ProcessInfo p : processTree.values()) {
if ((p != null) && (p.getAge() > olderThanAge)) {
ProcessTreeSmapMemInfo procMemInfo = processSMAPTree.get(p.getPid());
if (procMemInfo != null) {
for (ProcessSmapMemoryInfo info : procMemInfo.getMemoryInfoList()) {
// Do not account for r--s or r-xs mappings
if (info.getPermission().trim()
.equalsIgnoreCase(READ_ONLY_WITH_SHARED_PERMISSION)
|| info.getPermission().trim()
.equalsIgnoreCase(READ_EXECUTE_WITH_SHARED_PERMISSION)) {
continue;
}
total +=
Math.min(info.sharedDirty, info.pss) + info.privateDirty
+ info.privateClean;
if (LOG.isDebugEnabled()) {
LOG.debug(" total(" + olderThanAge + "): PID : " + p.getPid()
+ ", SharedDirty : " + info.sharedDirty + ", PSS : "
+ info.pss + ", Private_Dirty : " + info.privateDirty
+ ", Private_Clean : " + info.privateClean + ", total : "
+ (total * KB_TO_BYTES));
}
}
}
if (LOG.isDebugEnabled()) {
LOG.debug(procMemInfo.toString());
}
}
}
total = (total * KB_TO_BYTES); // convert to bytes
LOG.info("SmapBasedCumulativeRssmem (bytes) : " + total);
return total; // size
}
/**
* Get the CPU time in millisecond used by all the processes in the
* process-tree since the process-tree created
@ -601,4 +716,245 @@ public class ProcfsBasedProcessTree extends ResourceCalculatorProcessTree {
return ret;
}
}
/**
* Update memory related information
*
* @param pInfo
* @param procfsDir
*/
private static void constructProcessSMAPInfo(ProcessTreeSmapMemInfo pInfo,
String procfsDir) {
BufferedReader in = null;
FileReader fReader = null;
try {
File pidDir = new File(procfsDir, pInfo.getPid());
File file = new File(pidDir, SMAPS);
if (!file.exists()) {
return;
}
fReader = new FileReader(file);
in = new BufferedReader(fReader);
ProcessSmapMemoryInfo memoryMappingInfo = null;
List<String> lines = IOUtils.readLines(new FileInputStream(file));
for (String line : lines) {
line = line.trim();
try {
Matcher address = ADDRESS_PATTERN.matcher(line);
if (address.find()) {
memoryMappingInfo = new ProcessSmapMemoryInfo(line);
memoryMappingInfo.setPermission(address.group(4));
pInfo.getMemoryInfoList().add(memoryMappingInfo);
continue;
}
Matcher memInfo = MEM_INFO_PATTERN.matcher(line);
if (memInfo.find()) {
String key = memInfo.group(1).trim();
String value = memInfo.group(2).replace(KB, "").trim();
if (LOG.isDebugEnabled()) {
LOG.debug("MemInfo : " + key + " : Value : " + value);
}
memoryMappingInfo.setMemInfo(key, value);
}
} catch (Throwable t) {
LOG
.warn("Error parsing smaps line : " + line + "; " + t.getMessage());
}
}
} catch (FileNotFoundException f) {
LOG.error(f.getMessage());
} catch (IOException e) {
LOG.error(e.getMessage());
} catch (Throwable t) {
LOG.error(t.getMessage());
} finally {
IOUtils.closeQuietly(in);
}
}
/**
* Placeholder for process's SMAPS information
*/
static class ProcessTreeSmapMemInfo {
private String pid;
private List<ProcessSmapMemoryInfo> memoryInfoList;
public ProcessTreeSmapMemInfo(String pid) {
this.pid = pid;
this.memoryInfoList = new LinkedList<ProcessSmapMemoryInfo>();
}
public List<ProcessSmapMemoryInfo> getMemoryInfoList() {
return memoryInfoList;
}
public String getPid() {
return pid;
}
public String toString() {
StringBuilder sb = new StringBuilder();
for (ProcessSmapMemoryInfo info : memoryInfoList) {
sb.append("\n");
sb.append(info.toString());
}
return sb.toString();
}
}
/**
* <pre>
* Private Pages : Pages that were mapped only by the process
* Shared Pages : Pages that were shared with other processes
*
* Clean Pages : Pages that have not been modified since they were mapped
* Dirty Pages : Pages that have been modified since they were mapped
*
* Private RSS = Private Clean Pages + Private Dirty Pages
* Shared RSS = Shared Clean Pages + Shared Dirty Pages
* RSS = Private RSS + Shared RSS
* PSS = The count of all pages mapped uniquely by the process,
* plus a fraction of each shared page, said fraction to be
* proportional to the number of processes which have mapped the page.
*
* </pre>
*/
static class ProcessSmapMemoryInfo {
private int size;
private int rss;
private int pss;
private int sharedClean;
private int sharedDirty;
private int privateClean;
private int privateDirty;
private int referenced;
private String regionName;
private String permission;
public ProcessSmapMemoryInfo(String name) {
this.regionName = name;
}
public String getName() {
return regionName;
}
public void setPermission(String permission) {
this.permission = permission;
}
public String getPermission() {
return permission;
}
public int getSize() {
return size;
}
public int getRss() {
return rss;
}
public int getPss() {
return pss;
}
public int getSharedClean() {
return sharedClean;
}
public int getSharedDirty() {
return sharedDirty;
}
public int getPrivateClean() {
return privateClean;
}
public int getPrivateDirty() {
return privateDirty;
}
public int getReferenced() {
return referenced;
}
public void setMemInfo(String key, String value) {
MemInfo info = MemInfo.getMemInfoByName(key);
int val = 0;
try {
val = Integer.parseInt(value.trim());
} catch (NumberFormatException ne) {
LOG.error("Error in parsing : " + info + " : value" + value.trim());
return;
}
if (info == null) {
return;
}
if (LOG.isDebugEnabled()) {
LOG.debug("setMemInfo : memInfo : " + info);
}
switch (info) {
case SIZE:
size = val;
break;
case RSS:
rss = val;
break;
case PSS:
pss = val;
break;
case SHARED_CLEAN:
sharedClean = val;
break;
case SHARED_DIRTY:
sharedDirty = val;
break;
case PRIVATE_CLEAN:
privateClean = val;
break;
case PRIVATE_DIRTY:
privateDirty = val;
break;
case REFERENCED:
referenced = val;
break;
default:
break;
}
}
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("\t").append(this.getName()).append("\n");
sb.append("\t").append(MemInfo.SIZE.name + ":" + this.getSize())
.append(" kB\n");
sb.append("\t").append(MemInfo.PSS.name + ":" + this.getPss())
.append(" kB\n");
sb.append("\t").append(MemInfo.RSS.name + ":" + this.getRss())
.append(" kB\n");
sb.append("\t")
.append(MemInfo.SHARED_CLEAN.name + ":" + this.getSharedClean())
.append(" kB\n");
sb.append("\t")
.append(MemInfo.SHARED_DIRTY.name + ":" + this.getSharedDirty())
.append(" kB\n");
sb.append("\t")
.append(MemInfo.PRIVATE_CLEAN.name + ":" + this.getPrivateClean())
.append(" kB\n");
sb.append("\t")
.append(MemInfo.PRIVATE_DIRTY.name + ":" + this.getPrivateDirty())
.append(" kB\n");
sb.append("\t")
.append(MemInfo.REFERENCED.name + ":" + this.getReferenced())
.append(" kB\n");
sb.append("\t")
.append(MemInfo.PRIVATE_DIRTY.name + ":" + this.getPrivateDirty())
.append(" kB\n");
sb.append("\t")
.append(MemInfo.PRIVATE_DIRTY.name + ":" + this.getPrivateDirty())
.append(" kB\n");
return sb.toString();
}
}
}

13
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
View File

@ -1206,4 +1206,17 @@
<name>yarn.client.application-client-protocol.poll-interval-ms</name>
<value>200</value>
</property>
<property>
<description>RSS usage of a process computed via
/proc/pid/stat is not very accurate as it includes shared pages of a
process. /proc/pid/smaps provides useful information like
Private_Dirty, Private_Clean, Shared_Dirty, Shared_Clean which can be used
for computing more accurate RSS. When this flag is enabled, RSS is computed
as Min(Shared_Dirty, Pss) + Private_Clean + Private_Dirty. It excludes
read-only shared mappings in RSS computation.
</description>
<name>yarn.nodemanager.container-monitor.procfs-tree.smaps-based-rss.enabled</name>
<value>false</value>
</property>
</configuration>

615
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/util/TestProcfsBasedProcessTree.java
View File

@ -18,6 +18,7 @@
package org.apache.hadoop.yarn.util;
import static org.apache.hadoop.yarn.util.ProcfsBasedProcessTree.KB_TO_BYTES;
import static org.junit.Assert.fail;
import java.io.BufferedReader;
@ -27,6 +28,7 @@ import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.List;
import java.util.Random;
import java.util.Vector;
import java.util.regex.Matcher;
@ -34,14 +36,18 @@ import java.util.regex.Pattern;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileContext;
import org.apache.hadoop.fs.FileUtil;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.util.StringUtils;
import org.apache.hadoop.util.Shell;
import org.apache.hadoop.util.Shell.ExitCodeException;
import org.apache.hadoop.util.Shell.ShellCommandExecutor;
import org.apache.hadoop.yarn.util.ProcfsBasedProcessTree;
import org.apache.hadoop.util.StringUtils;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.util.ProcfsBasedProcessTree.MemInfo;
import org.apache.hadoop.yarn.util.ProcfsBasedProcessTree.ProcessSmapMemoryInfo;
import org.apache.hadoop.yarn.util.ProcfsBasedProcessTree.ProcessTreeSmapMemInfo;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
@ -52,9 +58,9 @@ import org.junit.Test;
public class TestProcfsBasedProcessTree {
private static final Log LOG = LogFactory
.getLog(TestProcfsBasedProcessTree.class);
.getLog(TestProcfsBasedProcessTree.class);
protected static File TEST_ROOT_DIR = new File("target",
TestProcfsBasedProcessTree.class.getName() + "-localDir");
TestProcfsBasedProcessTree.class.getName() + "-localDir");
private ShellCommandExecutor shexec = null;
private String pidFile, lowestDescendant;
@ -66,19 +72,19 @@ public class TestProcfsBasedProcessTree {
public void run() {
try {
Vector<String> args = new Vector<String>();
if(isSetsidAvailable()) {
if (isSetsidAvailable()) {
args.add("setsid");
}
args.add("bash");
args.add("-c");
args.add(" echo $$ > " + pidFile + "; sh " +
shellScript + " " + N + ";") ;
args.add(" echo $$ > " + pidFile + "; sh " + shellScript + " " + N
+ ";");
shexec = new ShellCommandExecutor(args.toArray(new String[0]));
shexec.execute();
} catch (ExitCodeException ee) {
LOG.info("Shell Command exit with a non-zero exit code. This is" +
" expected as we are killing the subprocesses of the" +
" task intentionally. " + ee);
LOG.info("Shell Command exit with a non-zero exit code. This is"
+ " expected as we are killing the subprocesses of the"
+ " task intentionally. " + ee);
} catch (IOException ioe) {
LOG.info("Error executing shell command " + ioe);
} finally {
@ -104,15 +110,15 @@ public class TestProcfsBasedProcessTree {
@Before
public void setup() throws IOException {
FileContext.getLocalFSFileContext().delete(
new Path(TEST_ROOT_DIR.getAbsolutePath()), true);
new Path(TEST_ROOT_DIR.getAbsolutePath()), true);
}
@Test (timeout = 30000)
@Test(timeout = 30000)
public void testProcessTree() throws Exception {
if (!Shell.LINUX) {
System.out
.println("ProcfsBasedProcessTree is not available on this system. Not testing");
.println("ProcfsBasedProcessTree is not available on this system. Not testing");
return;
}
@ -139,24 +145,16 @@ public class TestProcfsBasedProcessTree {
tempFile.deleteOnExit();
pidFile = TEST_ROOT_DIR + File.separator + tempFile.getName();
lowestDescendant = TEST_ROOT_DIR + File.separator + "lowestDescendantPidFile";
lowestDescendant =
TEST_ROOT_DIR + File.separator + "lowestDescendantPidFile";
// write to shell-script
try {
FileWriter fWriter = new FileWriter(shellScript);
fWriter.write(
"# rogue task\n" +
"sleep 1\n" +
"echo hello\n" +
"if [ $1 -ne 0 ]\n" +
"then\n" +
" sh " + shellScript + " $(($1-1))\n" +
"else\n" +
" echo $$ > " + lowestDescendant + "\n" +
" while true\n do\n" +
" sleep 5\n" +
" done\n" +
"fi");
fWriter.write("# rogue task\n" + "sleep 1\n" + "echo hello\n"
+ "if [ $1 -ne 0 ]\n" + "then\n" + " sh " + shellScript
+ " $(($1-1))\n" + "else\n" + " echo $$ > " + lowestDescendant + "\n"
+ " while true\n do\n" + " sleep 5\n" + " done\n" + "fi");
fWriter.close();
} catch (IOException ioe) {
LOG.info("Error: " + ioe);
@ -172,7 +170,7 @@ public class TestProcfsBasedProcessTree {
LOG.info("ProcessTree: " + p.toString());
File leaf = new File(lowestDescendant);
//wait till lowest descendant process of Rougue Task starts execution
// wait till lowest descendant process of Rougue Task starts execution
while (!leaf.exists()) {
try {
Thread.sleep(500);
@ -208,16 +206,17 @@ public class TestProcfsBasedProcessTree {
LOG.info("Process-tree dump follows: \n" + processTreeDump);
Assert.assertTrue("Process-tree dump doesn't start with a proper header",
processTreeDump.startsWith("\t|- PID PPID PGRPID SESSID CMD_NAME " +
"USER_MODE_TIME(MILLIS) SYSTEM_TIME(MILLIS) VMEM_USAGE(BYTES) " +
"RSSMEM_USAGE(PAGES) FULL_CMD_LINE\n"));
processTreeDump.startsWith("\t|- PID PPID PGRPID SESSID CMD_NAME "
+ "USER_MODE_TIME(MILLIS) SYSTEM_TIME(MILLIS) VMEM_USAGE(BYTES) "
+ "RSSMEM_USAGE(PAGES) FULL_CMD_LINE\n"));
for (int i = N; i >= 0; i--) {
String cmdLineDump = "\\|- [0-9]+ [0-9]+ [0-9]+ [0-9]+ \\(sh\\)" +
" [0-9]+ [0-9]+ [0-9]+ [0-9]+ sh " + shellScript + " " + i;
String cmdLineDump =
"\\|- [0-9]+ [0-9]+ [0-9]+ [0-9]+ \\(sh\\)"
+ " [0-9]+ [0-9]+ [0-9]+ [0-9]+ sh " + shellScript + " " + i;
Pattern pat = Pattern.compile(cmdLineDump);
Matcher mat = pat.matcher(processTreeDump);
Assert.assertTrue("Process-tree dump doesn't contain the cmdLineDump of " + i
+ "th process!", mat.find());
Assert.assertTrue("Process-tree dump doesn't contain the cmdLineDump of "
+ i + "th process!", mat.find());
}
// Not able to join thread sometimes when forking with large N.
@ -231,9 +230,9 @@ public class TestProcfsBasedProcessTree {
// ProcessTree is gone now. Any further calls should be sane.
p.updateProcessTree();
Assert.assertFalse("ProcessTree must have been gone", isAlive(pid));
Assert.assertTrue("Cumulative vmem for the gone-process is "
+ p.getCumulativeVmem() + " . It should be zero.", p
.getCumulativeVmem() == 0);
Assert.assertTrue(
"Cumulative vmem for the gone-process is " + p.getCumulativeVmem()
+ " . It should be zero.", p.getCumulativeVmem() == 0);
Assert.assertTrue(p.toString().equals("[ ]"));
}
@ -241,7 +240,8 @@ public class TestProcfsBasedProcessTree {
return new ProcfsBasedProcessTree(pid);
}
protected ProcfsBasedProcessTree createProcessTree(String pid, String procfsRootDir) {
protected ProcfsBasedProcessTree createProcessTree(String pid,
String procfsRootDir) {
return new ProcfsBasedProcessTree(pid, procfsRootDir);
}
@ -251,7 +251,7 @@ public class TestProcfsBasedProcessTree {
/**
* Get PID from a pid-file.
*
*
* @param pidFileName
* Name of the pid-file.
* @return the PID string read from the pid-file. Returns null if the
@ -328,23 +328,67 @@ public class TestProcfsBasedProcessTree {
// construct a line that mimics the procfs stat file.
// all unused numerical entries are set to 0.
public String getStatLine() {
return String.format("%s (%s) S %s %s %s 0 0 0" +
" 0 0 0 0 %s %s 0 0 0 0 0 0 0 %s %s 0 0" +
" 0 0 0 0 0 0 0 0" +
" 0 0 0 0 0",
pid, name, ppid, pgrpId, session,
utime, stime, vmem, rssmemPage);
return String.format("%s (%s) S %s %s %s 0 0 0"
+ " 0 0 0 0 %s %s 0 0 0 0 0 0 0 %s %s 0 0" + " 0 0 0 0 0 0 0 0"
+ " 0 0 0 0 0", pid, name, ppid, pgrpId, session, utime, stime, vmem,
rssmemPage);
}
}
public ProcessSmapMemoryInfo constructMemoryMappingInfo(String address,
String[] entries) {
ProcessSmapMemoryInfo info = new ProcessSmapMemoryInfo(address);
info.setMemInfo(MemInfo.SIZE.name(), entries[0]);
info.setMemInfo(MemInfo.RSS.name(), entries[1]);
info.setMemInfo(MemInfo.PSS.name(), entries[2]);
info.setMemInfo(MemInfo.SHARED_CLEAN.name(), entries[3]);
info.setMemInfo(MemInfo.SHARED_DIRTY.name(), entries[4]);
info.setMemInfo(MemInfo.PRIVATE_CLEAN.name(), entries[5]);
info.setMemInfo(MemInfo.PRIVATE_DIRTY.name(), entries[6]);
info.setMemInfo(MemInfo.REFERENCED.name(), entries[7]);
info.setMemInfo(MemInfo.ANONYMOUS.name(), entries[8]);
info.setMemInfo(MemInfo.ANON_HUGE_PAGES.name(), entries[9]);
info.setMemInfo(MemInfo.SWAP.name(), entries[10]);
info.setMemInfo(MemInfo.KERNEL_PAGE_SIZE.name(), entries[11]);
info.setMemInfo(MemInfo.MMU_PAGE_SIZE.name(), entries[12]);
return info;
}
public void createMemoryMappingInfo(ProcessTreeSmapMemInfo[] procMemInfo) {
for (int i = 0; i < procMemInfo.length; i++) {
// Construct 4 memory mappings per process.
// As per min(Shared_Dirty, Pss) + Private_Clean + Private_Dirty
// and not including r--s, r-xs, we should get 100 KB per process
List<ProcessSmapMemoryInfo> memoryMappingList =
procMemInfo[i].getMemoryInfoList();
memoryMappingList.add(constructMemoryMappingInfo(
"7f56c177c000-7f56c177d000 "
+ "rw-p 00010000 08:02 40371558 "
+ "/grid/0/jdk1.7.0_25/jre/lib/amd64/libnio.so",
new String[] { "4", "4", "25", "4", "25", "15", "10", "4", "0", "0",
"0", "4", "4" }));
memoryMappingList.add(constructMemoryMappingInfo(
"7fb09382e000-7fb09382f000 r--s 00003000 " + "08:02 25953545",
new String[] { "4", "4", "25", "4", "0", "15", "10", "4", "0", "0",
"0", "4", "4" }));
memoryMappingList.add(constructMemoryMappingInfo(
"7e8790000-7e8b80000 r-xs 00000000 00:00 0", new String[] { "4", "4",
"25", "4", "0", "15", "10", "4", "0", "0", "0", "4", "4" }));
memoryMappingList.add(constructMemoryMappingInfo(
"7da677000-7e0dcf000 rw-p 00000000 00:00 0", new String[] { "4", "4",
"25", "4", "50", "15", "10", "4", "0", "0", "0", "4", "4" }));
}
}
/**
* A basic test that creates a few process directories and writes
* stat files. Verifies that the cpu time and memory is correctly
* computed.
* @throws IOException if there was a problem setting up the
* fake procfs directories or files.
* A basic test that creates a few process directories and writes stat files.
* Verifies that the cpu time and memory is correctly computed.
*
* @throws IOException
* if there was a problem setting up the fake procfs directories or
* files.
*/
@Test (timeout = 30000)
@Test(timeout = 30000)
public void testCpuAndMemoryForProcessTree() throws IOException {
// test processes
@ -359,67 +403,108 @@ public class TestProcfsBasedProcessTree {
// create stat objects.
// assuming processes 100, 200, 300 are in tree and 400 is not.
ProcessStatInfo[] procInfos = new ProcessStatInfo[4];
procInfos[0] = new ProcessStatInfo(new String[]
{"100", "proc1", "1", "100", "100", "100000", "100", "1000", "200"});
procInfos[1] = new ProcessStatInfo(new String[]
{"200", "proc2", "100", "100", "100", "200000", "200", "2000", "400"});
procInfos[2] = new ProcessStatInfo(new String[]
{"300", "proc3", "200", "100", "100", "300000", "300", "3000", "600"});
procInfos[3] = new ProcessStatInfo(new String[]
{"400", "proc4", "1", "400", "400", "400000", "400", "4000", "800"});
procInfos[0] =
new ProcessStatInfo(new String[] { "100", "proc1", "1", "100", "100",
"100000", "100", "1000", "200" });
procInfos[1] =
new ProcessStatInfo(new String[] { "200", "proc2", "100", "100",
"100", "200000", "200", "2000", "400" });
procInfos[2] =
new ProcessStatInfo(new String[] { "300", "proc3", "200", "100",
"100", "300000", "300", "3000", "600" });
procInfos[3] =
new ProcessStatInfo(new String[] { "400", "proc4", "1", "400", "400",
"400000", "400", "4000", "800" });
writeStatFiles(procfsRootDir, pids, procInfos);
ProcessTreeSmapMemInfo[] memInfo = new ProcessTreeSmapMemInfo[4];
memInfo[0] = new ProcessTreeSmapMemInfo("100");
memInfo[1] = new ProcessTreeSmapMemInfo("200");
memInfo[2] = new ProcessTreeSmapMemInfo("300");
memInfo[3] = new ProcessTreeSmapMemInfo("400");
createMemoryMappingInfo(memInfo);
writeStatFiles(procfsRootDir, pids, procInfos, memInfo);
// crank up the process tree class.
Configuration conf = new Configuration();
ProcfsBasedProcessTree processTree =
createProcessTree("100", procfsRootDir.getAbsolutePath());
processTree.setConf(conf);
// build the process tree.
processTree.updateProcessTree();
// verify cumulative memory
Assert.assertEquals("Cumulative virtual memory does not match", 600000L,
processTree.getCumulativeVmem());
processTree.getCumulativeVmem());
// verify rss memory
long cumuRssMem = ProcfsBasedProcessTree.PAGE_SIZE > 0 ?
600L * ProcfsBasedProcessTree.PAGE_SIZE : 0L;
Assert.assertEquals("Cumulative rss memory does not match",
cumuRssMem, processTree.getCumulativeRssmem());
long cumuRssMem =
ProcfsBasedProcessTree.PAGE_SIZE > 0
? 600L * ProcfsBasedProcessTree.PAGE_SIZE : 0L;
Assert.assertEquals("Cumulative rss memory does not match", cumuRssMem,
processTree.getCumulativeRssmem());
// verify cumulative cpu time
long cumuCpuTime = ProcfsBasedProcessTree.JIFFY_LENGTH_IN_MILLIS > 0 ?
7200L * ProcfsBasedProcessTree.JIFFY_LENGTH_IN_MILLIS : 0L;
Assert.assertEquals("Cumulative cpu time does not match",
cumuCpuTime, processTree.getCumulativeCpuTime());
long cumuCpuTime =
ProcfsBasedProcessTree.JIFFY_LENGTH_IN_MILLIS > 0
? 7200L * ProcfsBasedProcessTree.JIFFY_LENGTH_IN_MILLIS : 0L;
Assert.assertEquals("Cumulative cpu time does not match", cumuCpuTime,
processTree.getCumulativeCpuTime());
// Check by enabling smaps
setSmapsInProceTree(processTree, true);
// RSS=Min(shared_dirty,PSS)+PrivateClean+PrivateDirty (exclude r-xs,
// r--s)
Assert.assertEquals("Cumulative rss memory does not match",
(100 * KB_TO_BYTES * 3), processTree.getCumulativeRssmem());
// test the cpu time again to see if it cumulates
procInfos[0] = new ProcessStatInfo(new String[]
{"100", "proc1", "1", "100", "100", "100000", "100", "2000", "300"});
procInfos[1] = new ProcessStatInfo(new String[]
{"200", "proc2", "100", "100", "100", "200000", "200", "3000", "500"});
writeStatFiles(procfsRootDir, pids, procInfos);
procInfos[0] =
new ProcessStatInfo(new String[] { "100", "proc1", "1", "100", "100",
"100000", "100", "2000", "300" });
procInfos[1] =
new ProcessStatInfo(new String[] { "200", "proc2", "100", "100",
"100", "200000", "200", "3000", "500" });
writeStatFiles(procfsRootDir, pids, procInfos, memInfo);
// build the process tree.
processTree.updateProcessTree();
// verify cumulative cpu time again
cumuCpuTime = ProcfsBasedProcessTree.JIFFY_LENGTH_IN_MILLIS > 0 ?
9400L * ProcfsBasedProcessTree.JIFFY_LENGTH_IN_MILLIS : 0L;
Assert.assertEquals("Cumulative cpu time does not match",
cumuCpuTime, processTree.getCumulativeCpuTime());
cumuCpuTime =
ProcfsBasedProcessTree.JIFFY_LENGTH_IN_MILLIS > 0
? 9400L * ProcfsBasedProcessTree.JIFFY_LENGTH_IN_MILLIS : 0L;
Assert.assertEquals("Cumulative cpu time does not match", cumuCpuTime,
processTree.getCumulativeCpuTime());
} finally {
FileUtil.fullyDelete(procfsRootDir);
}
}
private void setSmapsInProceTree(ProcfsBasedProcessTree processTree,
boolean enableFlag) {
Configuration conf = processTree.getConf();
if (conf == null) {
conf = new Configuration();
}
conf.setBoolean(YarnConfiguration.PROCFS_USE_SMAPS_BASED_RSS_ENABLED, enableFlag);
processTree.setConf(conf);
processTree.updateProcessTree();
}
/**
* Tests that cumulative memory is computed only for
* processes older than a given age.
* @throws IOException if there was a problem setting up the
* fake procfs directories or files.
* Tests that cumulative memory is computed only for processes older than a
* given age.
*
* @throws IOException
* if there was a problem setting up the fake procfs directories or
* files.
*/
@Test (timeout = 30000)
@Test(timeout = 30000)
public void testMemForOlderProcesses() throws IOException {
testMemForOlderProcesses(false);
testMemForOlderProcesses(true);
}
private void testMemForOlderProcesses(boolean smapEnabled) throws IOException {
// initial list of processes
String[] pids = { "100", "200", "300", "400" };
// create the fake procfs root directory.
@ -432,87 +517,141 @@ public class TestProcfsBasedProcessTree {
// create stat objects.
// assuming 100, 200 and 400 are in tree, 300 is not.
ProcessStatInfo[] procInfos = new ProcessStatInfo[4];
procInfos[0] = new ProcessStatInfo(new String[]
{"100", "proc1", "1", "100", "100", "100000", "100"});
procInfos[1] = new ProcessStatInfo(new String[]
{"200", "proc2", "100", "100", "100", "200000", "200"});
procInfos[2] = new ProcessStatInfo(new String[]
{"300", "proc3", "1", "300", "300", "300000", "300"});
procInfos[3] = new ProcessStatInfo(new String[]
{"400", "proc4", "100", "100", "100", "400000", "400"});
writeStatFiles(procfsRootDir, pids, procInfos);
procInfos[0] =
new ProcessStatInfo(new String[] { "100", "proc1", "1", "100", "100",
"100000", "100" });
procInfos[1] =
new ProcessStatInfo(new String[] { "200", "proc2", "100", "100",
"100", "200000", "200" });
procInfos[2] =
new ProcessStatInfo(new String[] { "300", "proc3", "1", "300", "300",
"300000", "300" });
procInfos[3] =
new ProcessStatInfo(new String[] { "400", "proc4", "100", "100",
"100", "400000", "400" });
// write smap information invariably for testing
ProcessTreeSmapMemInfo[] memInfo = new ProcessTreeSmapMemInfo[4];
memInfo[0] = new ProcessTreeSmapMemInfo("100");
memInfo[1] = new ProcessTreeSmapMemInfo("200");
memInfo[2] = new ProcessTreeSmapMemInfo("300");
memInfo[3] = new ProcessTreeSmapMemInfo("400");
createMemoryMappingInfo(memInfo);
writeStatFiles(procfsRootDir, pids, procInfos, memInfo);
// crank up the process tree class.
ProcfsBasedProcessTree processTree =
createProcessTree("100", procfsRootDir.getAbsolutePath());
// build the process tree.
processTree.updateProcessTree();
setSmapsInProceTree(processTree, smapEnabled);
// verify cumulative memory
Assert.assertEquals("Cumulative memory does not match",
700000L, processTree.getCumulativeVmem());
Assert.assertEquals("Cumulative memory does not match", 700000L,
processTree.getCumulativeVmem());
// write one more process as child of 100.
String[] newPids = { "500" };
setupPidDirs(procfsRootDir, newPids);
ProcessStatInfo[] newProcInfos = new ProcessStatInfo[1];
newProcInfos[0] = new ProcessStatInfo(new String[]
{"500", "proc5", "100", "100", "100", "500000", "500"});
writeStatFiles(procfsRootDir, newPids, newProcInfos);
newProcInfos[0] =
new ProcessStatInfo(new String[] { "500", "proc5", "100", "100",
"100", "500000", "500" });
ProcessTreeSmapMemInfo[] newMemInfos = new ProcessTreeSmapMemInfo[1];
newMemInfos[0] = new ProcessTreeSmapMemInfo("500");
createMemoryMappingInfo(newMemInfos);
writeStatFiles(procfsRootDir, newPids, newProcInfos, newMemInfos);
// check memory includes the new process.
processTree.updateProcessTree();
Assert.assertEquals("Cumulative vmem does not include new process",
1200000L, processTree.getCumulativeVmem());
long cumuRssMem = ProcfsBasedProcessTree.PAGE_SIZE > 0 ?
1200L * ProcfsBasedProcessTree.PAGE_SIZE : 0L;
Assert.assertEquals("Cumulative rssmem does not include new process",
cumuRssMem, processTree.getCumulativeRssmem());
1200000L, processTree.getCumulativeVmem());
if (!smapEnabled) {
long cumuRssMem =
ProcfsBasedProcessTree.PAGE_SIZE > 0
? 1200L * ProcfsBasedProcessTree.PAGE_SIZE : 0L;
Assert.assertEquals("Cumulative rssmem does not include new process",
cumuRssMem, processTree.getCumulativeRssmem());
} else {
Assert.assertEquals("Cumulative rssmem does not include new process",
100 * KB_TO_BYTES * 4, processTree.getCumulativeRssmem());
}
// however processes older than 1 iteration will retain the older value
Assert.assertEquals("Cumulative vmem shouldn't have included new process",
700000L, processTree.getCumulativeVmem(1));
cumuRssMem = ProcfsBasedProcessTree.PAGE_SIZE > 0 ?
700L * ProcfsBasedProcessTree.PAGE_SIZE : 0L;
Assert.assertEquals("Cumulative rssmem shouldn't have included new process",
cumuRssMem, processTree.getCumulativeRssmem(1));
Assert.assertEquals(
"Cumulative vmem shouldn't have included new process", 700000L,
processTree.getCumulativeVmem(1));
if (!smapEnabled) {
long cumuRssMem =
ProcfsBasedProcessTree.PAGE_SIZE > 0
? 700L * ProcfsBasedProcessTree.PAGE_SIZE : 0L;
Assert.assertEquals(
"Cumulative rssmem shouldn't have included new process", cumuRssMem,
processTree.getCumulativeRssmem(1));
} else {
Assert.assertEquals(
"Cumulative rssmem shouldn't have included new process",
100 * KB_TO_BYTES * 3, processTree.getCumulativeRssmem(1));
}
// one more process
newPids = new String[]{ "600" };
newPids = new String[] { "600" };
setupPidDirs(procfsRootDir, newPids);
newProcInfos = new ProcessStatInfo[1];
newProcInfos[0] = new ProcessStatInfo(new String[]
{"600", "proc6", "100", "100", "100", "600000", "600"});
writeStatFiles(procfsRootDir, newPids, newProcInfos);
newProcInfos[0] =
new ProcessStatInfo(new String[] { "600", "proc6", "100", "100",
"100", "600000", "600" });
newMemInfos = new ProcessTreeSmapMemInfo[1];
newMemInfos[0] = new ProcessTreeSmapMemInfo("600");
createMemoryMappingInfo(newMemInfos);
writeStatFiles(procfsRootDir, newPids, newProcInfos, newMemInfos);
// refresh process tree
processTree.updateProcessTree();
// processes older than 2 iterations should be same as before.
Assert.assertEquals("Cumulative vmem shouldn't have included new processes",
700000L, processTree.getCumulativeVmem(2));
cumuRssMem = ProcfsBasedProcessTree.PAGE_SIZE > 0 ?
700L * ProcfsBasedProcessTree.PAGE_SIZE : 0L;
Assert.assertEquals("Cumulative rssmem shouldn't have included new processes",
cumuRssMem, processTree.getCumulativeRssmem(2));
Assert.assertEquals(
"Cumulative vmem shouldn't have included new processes", 700000L,
processTree.getCumulativeVmem(2));
if (!smapEnabled) {
long cumuRssMem =
ProcfsBasedProcessTree.PAGE_SIZE > 0
? 700L * ProcfsBasedProcessTree.PAGE_SIZE : 0L;
Assert.assertEquals(
"Cumulative rssmem shouldn't have included new processes",
cumuRssMem, processTree.getCumulativeRssmem(2));
} else {
Assert.assertEquals(
"Cumulative rssmem shouldn't have included new processes",
100 * KB_TO_BYTES * 3, processTree.getCumulativeRssmem(2));
}
// processes older than 1 iteration should not include new process,
// but include process 500
Assert.assertEquals("Cumulative vmem shouldn't have included new processes",
1200000L, processTree.getCumulativeVmem(1));
cumuRssMem = ProcfsBasedProcessTree.PAGE_SIZE > 0 ?
1200L * ProcfsBasedProcessTree.PAGE_SIZE : 0L;
Assert.assertEquals("Cumulative rssmem shouldn't have included new processes",
cumuRssMem, processTree.getCumulativeRssmem(1));
Assert.assertEquals(
"Cumulative vmem shouldn't have included new processes", 1200000L,
processTree.getCumulativeVmem(1));
if (!smapEnabled) {
long cumuRssMem =
ProcfsBasedProcessTree.PAGE_SIZE > 0
? 1200L * ProcfsBasedProcessTree.PAGE_SIZE : 0L;
Assert.assertEquals(
"Cumulative rssmem shouldn't have included new processes",
cumuRssMem, processTree.getCumulativeRssmem(1));
} else {
Assert.assertEquals(
"Cumulative rssmem shouldn't have included new processes",
100 * KB_TO_BYTES * 4, processTree.getCumulativeRssmem(1));
}
// no processes older than 3 iterations, this should be 0
Assert.assertEquals("Getting non-zero vmem for processes older than 3 iterations",
0L, processTree.getCumulativeVmem(3));
Assert.assertEquals("Getting non-zero rssmem for processes older than 3 iterations",
0L, processTree.getCumulativeRssmem(3));
Assert.assertEquals(
"Getting non-zero vmem for processes older than 3 iterations", 0L,
processTree.getCumulativeVmem(3));
Assert.assertEquals(
"Getting non-zero rssmem for processes older than 3 iterations", 0L,
processTree.getCumulativeRssmem(3));
Assert.assertEquals(
"Getting non-zero rssmem for processes older than 3 iterations", 0L,
processTree.getCumulativeRssmem(3));
} finally {
FileUtil.fullyDelete(procfsRootDir);
}
@ -522,10 +661,12 @@ public class TestProcfsBasedProcessTree {
* Verifies ProcfsBasedProcessTree.checkPidPgrpidForMatch() in case of
* 'constructProcessInfo() returning null' by not writing stat file for the
* mock process
* @throws IOException if there was a problem setting up the
* fake procfs directories or files.
*
* @throws IOException
* if there was a problem setting up the fake procfs directories or
* files.
*/
@Test (timeout = 30000)
@Test(timeout = 30000)
public void testDestroyProcessTree() throws IOException {
// test process
String pid = "100";
@ -539,8 +680,8 @@ public class TestProcfsBasedProcessTree {
createProcessTree(pid, procfsRootDir.getAbsolutePath());
// Let us not create stat file for pid 100.
Assert.assertTrue(ProcfsBasedProcessTree.checkPidPgrpidForMatch(
pid, procfsRootDir.getAbsolutePath()));
Assert.assertTrue(ProcfsBasedProcessTree.checkPidPgrpidForMatch(pid,
procfsRootDir.getAbsolutePath()));
} finally {
FileUtil.fullyDelete(procfsRootDir);
}
@ -551,9 +692,8 @@ public class TestProcfsBasedProcessTree {
*
* @throws IOException
*/
@Test (timeout = 30000)
public void testProcessTreeDump()
throws IOException {
@Test(timeout = 30000)
public void testProcessTreeDump() throws IOException {
String[] pids = { "100", "200", "300", "400", "500", "600" };
@ -566,18 +706,32 @@ public class TestProcfsBasedProcessTree {
int numProcesses = pids.length;
// Processes 200, 300, 400 and 500 are descendants of 100. 600 is not.
ProcessStatInfo[] procInfos = new ProcessStatInfo[numProcesses];
procInfos[0] = new ProcessStatInfo(new String[] {
"100", "proc1", "1", "100", "100", "100000", "100", "1000", "200"});
procInfos[1] = new ProcessStatInfo(new String[] {
"200", "proc2", "100", "100", "100", "200000", "200", "2000", "400"});
procInfos[2] = new ProcessStatInfo(new String[] {
"300", "proc3", "200", "100", "100", "300000", "300", "3000", "600"});
procInfos[3] = new ProcessStatInfo(new String[] {
"400", "proc4", "200", "100", "100", "400000", "400", "4000", "800"});
procInfos[4] = new ProcessStatInfo(new String[] {
"500", "proc5", "400", "100", "100", "400000", "400", "4000", "800"});
procInfos[5] = new ProcessStatInfo(new String[] {
"600", "proc6", "1", "1", "1", "400000", "400", "4000", "800"});
procInfos[0] =
new ProcessStatInfo(new String[] { "100", "proc1", "1", "100", "100",
"100000", "100", "1000", "200" });
procInfos[1] =
new ProcessStatInfo(new String[] { "200", "proc2", "100", "100",
"100", "200000", "200", "2000", "400" });
procInfos[2] =
new ProcessStatInfo(new String[] { "300", "proc3", "200", "100",
"100", "300000", "300", "3000", "600" });
procInfos[3] =
new ProcessStatInfo(new String[] { "400", "proc4", "200", "100",
"100", "400000", "400", "4000", "800" });
procInfos[4] =
new ProcessStatInfo(new String[] { "500", "proc5", "400", "100",
"100", "400000", "400", "4000", "800" });
procInfos[5] =
new ProcessStatInfo(new String[] { "600", "proc6", "1", "1", "1",
"400000", "400", "4000", "800" });
ProcessTreeSmapMemInfo[] memInfos = new ProcessTreeSmapMemInfo[6];
memInfos[0] = new ProcessTreeSmapMemInfo("100");
memInfos[1] = new ProcessTreeSmapMemInfo("200");
memInfos[2] = new ProcessTreeSmapMemInfo("300");
memInfos[3] = new ProcessTreeSmapMemInfo("400");
memInfos[4] = new ProcessTreeSmapMemInfo("500");
memInfos[5] = new ProcessTreeSmapMemInfo("600");
String[] cmdLines = new String[numProcesses];
cmdLines[0] = "proc1 arg1 arg2";
@ -587,11 +741,12 @@ public class TestProcfsBasedProcessTree {
cmdLines[4] = "proc5 arg9 arg10";
cmdLines[5] = "proc6 arg11 arg12";
writeStatFiles(procfsRootDir, pids, procInfos);
createMemoryMappingInfo(memInfos);
writeStatFiles(procfsRootDir, pids, procInfos, memInfos);
writeCmdLineFiles(procfsRootDir, pids, cmdLines);
ProcfsBasedProcessTree processTree = createProcessTree(
"100", procfsRootDir.getAbsolutePath());
ProcfsBasedProcessTree processTree =
createProcessTree("100", procfsRootDir.getAbsolutePath());
// build the process tree.
processTree.updateProcessTree();
@ -600,50 +755,52 @@ public class TestProcfsBasedProcessTree {
LOG.info("Process-tree dump follows: \n" + processTreeDump);
Assert.assertTrue("Process-tree dump doesn't start with a proper header",
processTreeDump.startsWith("\t|- PID PPID PGRPID SESSID CMD_NAME " +
"USER_MODE_TIME(MILLIS) SYSTEM_TIME(MILLIS) VMEM_USAGE(BYTES) " +
"RSSMEM_USAGE(PAGES) FULL_CMD_LINE\n"));
processTreeDump.startsWith("\t|- PID PPID PGRPID SESSID CMD_NAME "
+ "USER_MODE_TIME(MILLIS) SYSTEM_TIME(MILLIS) VMEM_USAGE(BYTES) "
+ "RSSMEM_USAGE(PAGES) FULL_CMD_LINE\n"));
for (int i = 0; i < 5; i++) {
ProcessStatInfo p = procInfos[i];
Assert.assertTrue(
"Process-tree dump doesn't contain the cmdLineDump of process "
+ p.pid, processTreeDump.contains("\t|- " + p.pid + " "
+ p.ppid + " " + p.pgrpId + " " + p.session + " (" + p.name
+ ") " + p.utime + " " + p.stime + " " + p.vmem + " "
+ p.rssmemPage + " " + cmdLines[i]));
"Process-tree dump doesn't contain the cmdLineDump of process "
+ p.pid,
processTreeDump.contains("\t|- " + p.pid + " " + p.ppid + " "
+ p.pgrpId + " " + p.session + " (" + p.name + ") " + p.utime
+ " " + p.stime + " " + p.vmem + " " + p.rssmemPage + " "
+ cmdLines[i]));
}
// 600 should not be in the dump
ProcessStatInfo p = procInfos[5];
Assert.assertFalse(
"Process-tree dump shouldn't contain the cmdLineDump of process "
+ p.pid, processTreeDump.contains("\t|- " + p.pid + " " + p.ppid
+ " " + p.pgrpId + " " + p.session + " (" + p.name + ") "
+ p.utime + " " + p.stime + " " + p.vmem + " " + cmdLines[5]));
"Process-tree dump shouldn't contain the cmdLineDump of process "
+ p.pid,
processTreeDump.contains("\t|- " + p.pid + " " + p.ppid + " "
+ p.pgrpId + " " + p.session + " (" + p.name + ") " + p.utime + " "
+ p.stime + " " + p.vmem + " " + cmdLines[5]));
} finally {
FileUtil.fullyDelete(procfsRootDir);
}
}
protected static boolean isSetsidAvailable() {
ShellCommandExecutor shexec = null;
boolean setsidSupported = true;
try {
String[] args = {"setsid", "bash", "-c", "echo $$"};
shexec = new ShellCommandExecutor(args);
shexec.execute();
} catch (IOException ioe) {
LOG.warn("setsid is not available on this machine. So not using it.");
setsidSupported = false;
} finally { // handle the exit code
LOG.info("setsid exited with exit code " + shexec.getExitCode());
}
return setsidSupported;
ShellCommandExecutor shexec = null;
boolean setsidSupported = true;
try {
String[] args = { "setsid", "bash", "-c", "echo $$" };
shexec = new ShellCommandExecutor(args);
shexec.execute();
} catch (IOException ioe) {
LOG.warn("setsid is not available on this machine. So not using it.");
setsidSupported = false;
} finally { // handle the exit code
LOG.info("setsid exited with exit code " + shexec.getExitCode());
}
return setsidSupported;
}
/**
* Is the root-process alive?
* Used only in tests.
* Is the root-process alive? Used only in tests.
*
* @return true if the root-process is alive, false otherwise.
*/
private static boolean isAlive(String pid) {
@ -662,16 +819,16 @@ public class TestProcfsBasedProcessTree {
private static void sendSignal(String pid, int signal) throws IOException {
ShellCommandExecutor shexec = null;
String[] arg = { "kill", "-" + signal, pid };
shexec = new ShellCommandExecutor(arg);
String[] arg = { "kill", "-" + signal, pid };
shexec = new ShellCommandExecutor(arg);
shexec.execute();
}
/**
* Is any of the subprocesses in the process-tree alive?
* Used only in tests.
* @return true if any of the processes in the process-tree is
* alive, false otherwise.
* Is any of the subprocesses in the process-tree alive? Used only in tests.
*
* @return true if any of the processes in the process-tree is alive, false
* otherwise.
*/
private static boolean isAnyProcessInTreeAlive(
ProcfsBasedProcessTree processTree) {
@ -685,11 +842,13 @@ public class TestProcfsBasedProcessTree {
/**
* Create a directory to mimic the procfs file system's root.
* @param procfsRootDir root directory to create.
* @throws IOException if could not delete the procfs root directory
*
* @param procfsRootDir
* root directory to create.
* @throws IOException
* if could not delete the procfs root directory
*/
public static void setupProcfsRootDir(File procfsRootDir)
throws IOException {
public static void setupProcfsRootDir(File procfsRootDir) throws IOException {
// cleanup any existing process root dir.
if (procfsRootDir.exists()) {
Assert.assertTrue(FileUtil.fullyDelete(procfsRootDir));
@ -701,18 +860,22 @@ public class TestProcfsBasedProcessTree {
/**
* Create PID directories under the specified procfs root directory
* @param procfsRootDir root directory of procfs file system
* @param pids the PID directories to create.
* @throws IOException If PID dirs could not be created
*
* @param procfsRootDir
* root directory of procfs file system
* @param pids
* the PID directories to create.
* @throws IOException
* If PID dirs could not be created
*/
public static void setupPidDirs(File procfsRootDir, String[] pids)
throws IOException {
throws IOException {
for (String pid : pids) {
File pidDir = new File(procfsRootDir, pid);
pidDir.mkdir();
if (!pidDir.exists()) {
throw new IOException ("couldn't make process directory under " +
"fake procfs");
throw new IOException("couldn't make process directory under "
+ "fake procfs");
} else {
LOG.info("created pid dir");
}
@ -720,43 +883,67 @@ public class TestProcfsBasedProcessTree {
}
/**
* Write stat files under the specified pid directories with data
* setup in the corresponding ProcessStatInfo objects
* @param procfsRootDir root directory of procfs file system
* @param pids the PID directories under which to create the stat file
* @param procs corresponding ProcessStatInfo objects whose data should be
* written to the stat files.
* @throws IOException if stat files could not be written
* Write stat files under the specified pid directories with data setup in the
* corresponding ProcessStatInfo objects
*
* @param procfsRootDir
* root directory of procfs file system
* @param pids
* the PID directories under which to create the stat file
* @param procs
* corresponding ProcessStatInfo objects whose data should be written
* to the stat files.
* @throws IOException
* if stat files could not be written
*/
public static void writeStatFiles(File procfsRootDir, String[] pids,
ProcessStatInfo[] procs) throws IOException {
for (int i=0; i<pids.length; i++) {
ProcessStatInfo[] procs, ProcessTreeSmapMemInfo[] smaps)
throws IOException {
for (int i = 0; i < pids.length; i++) {
File statFile =
new File(new File(procfsRootDir, pids[i]),
ProcfsBasedProcessTree.PROCFS_STAT_FILE);
ProcfsBasedProcessTree.PROCFS_STAT_FILE);
BufferedWriter bw = null;
try {
FileWriter fw = new FileWriter(statFile);
bw = new BufferedWriter(fw);
bw.write(procs[i].getStatLine());
LOG.info("wrote stat file for " + pids[i] +
" with contents: " + procs[i].getStatLine());
LOG.info("wrote stat file for " + pids[i] + " with contents: "
+ procs[i].getStatLine());
} finally {
// not handling exception - will throw an error and fail the test.
if (bw != null) {
bw.close();
}
}
if (smaps != null) {
File smapFile =
new File(new File(procfsRootDir, pids[i]),
ProcfsBasedProcessTree.SMAPS);
bw = null;
try {
FileWriter fw = new FileWriter(smapFile);
bw = new BufferedWriter(fw);
bw.write(smaps[i].toString());
bw.flush();
LOG.info("wrote smap file for " + pids[i] + " with contents: "
+ smaps[i].toString());
} finally {
// not handling exception - will throw an error and fail the test.
if (bw != null) {
bw.close();
}
}
}
}
}
private static void writeCmdLineFiles(File procfsRootDir, String[] pids,
String[] cmdLines)
throws IOException {
String[] cmdLines) throws IOException {
for (int i = 0; i < pids.length; i++) {
File statFile =
new File(new File(procfsRootDir, pids[i]),
ProcfsBasedProcessTree.PROCFS_CMDLINE_FILE);
ProcfsBasedProcessTree.PROCFS_CMDLINE_FILE);
BufferedWriter bw = null;
try {
bw = new BufferedWriter(new FileWriter(statFile));

2
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/monitor/TestContainersMonitor.java
View File

@ -131,7 +131,7 @@ public class TestContainersMonitor extends BaseContainerManagerTest {
procs[6] = new TestProcfsBasedProcessTree.ProcessStatInfo(
new String[] { "700", "proc7", "600", "600", "600", "100000" });
// write stat files.
TestProcfsBasedProcessTree.writeStatFiles(procfsRootDir, pids, procs);
TestProcfsBasedProcessTree.writeStatFiles(procfsRootDir, pids, procs, null);
// vmem limit
long limit = 700000;