Example usage for org.apache.lucene.util Constants LINUX

List of usage examples for org.apache.lucene.util Constants LINUX

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Introduction

In this page you can find the example usage for org.apache.lucene.util Constants LINUX.

Prototype

boolean LINUX

To view the source code for org.apache.lucene.util Constants LINUX.

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Document

True iff running on Linux.

Usage

From source file:com.b2international.index.lucene.Directories.java

License:Apache License

/**
 * Just like {@link #openFile(File)}, but allows you to also specify a custom {@link LockFactory}.
 *//*from w  ww  . j a va  2  s .  c  om*/
public static FSDirectory openFile(final Path path, final LockFactory lockFactory) throws IOException {
    if ((Constants.WINDOWS || Constants.SUN_OS || Constants.LINUX || Constants.MAC_OS_X)
            && Constants.JRE_IS_64BIT && MMapDirectory.UNMAP_SUPPORTED) {

        return new MMapDirectory(path, lockFactory);
    } else if (Constants.WINDOWS) {
        return new SimpleFSDirectory(path, lockFactory);
    } else {
        return new NIOFSDirectory(path, lockFactory);
    }
}

From source file:io.crate.monitor.SysInfo.java

License:Apache License

/**
 * Retrieve system uptime in milliseconds
 * https://en.wikipedia.org/wiki/Uptime// www  .ja v a 2  s. c  om
 */
static long getSystemUptime() {
    long uptime = -1L;
    if (Constants.WINDOWS) {
        List<String> lines = SysInfo.sysCall(new String[] { "net", "stats", "srv" }, "");
        for (String line : lines) {
            if (line.startsWith("Statistics since")) {
                SimpleDateFormat format = new SimpleDateFormat("'Statistics since' MM/dd/yyyy hh:mm:ss a",
                        Locale.ROOT);
                try {
                    Date bootTime = format.parse(line);
                    return System.currentTimeMillis() - bootTime.getTime();
                } catch (ParseException e) {
                    LOGGER.debug("Failed to parse uptime: {}", e.getMessage());
                }
            }
        }
    } else if (Constants.LINUX) {
        File procUptime = new File("/proc/uptime");
        if (procUptime.exists()) {
            try {
                List<String> lines = Files.readAllLines(procUptime.toPath());
                if (!lines.isEmpty()) {
                    String[] parts = lines.get(0).split(" ");
                    if (parts.length == 2) {
                        Double uptimeMillis = Float.parseFloat(parts[1]) * 1000.0;
                        return uptimeMillis.longValue();
                    }
                }
            } catch (IOException e) {
                LOGGER.debug("Failed to read '{}': {}", procUptime.getAbsolutePath(), e.getMessage());
            }
        }
    } else if (Constants.MAC_OS_X) {
        Pattern pattern = Pattern.compile("kern.boottime: \\{ sec = (\\d+), usec = (\\d+) \\} .*");
        List<String> lines = SysInfo.sysCall(new String[] { "sysctl", "kern.boottime" }, "");
        for (String line : lines) {
            Matcher matcher = pattern.matcher(line);
            if (matcher.matches()) {
                return Long.parseLong(matcher.group(1)) * 1000L;
            }
        }
    }
    return uptime;
}

From source file:org.apache.cassandra.utils.CLibrary.java

License:Apache License

public static String rlimitToString(long value) {
    assert Constants.LINUX || Constants.MAC_OS_X;
    if (value == CLibrary.RLIM_INFINITY) {
        return "unlimited";
    } else {//from www .j a  va  2s . c  om
        // TODO, on java 8 use Long.toUnsignedString, since thats what it is.
        return Long.toUnsignedString(value);
    }
}

From source file:org.elasticsearch.bootstrap.BootstrapCheck.java

License:Apache License

static List<Check> checks(final Settings settings) {
    final List<Check> checks = new ArrayList<>();
    checks.add(new HeapSizeCheck());
    final FileDescriptorCheck fileDescriptorCheck = Constants.MAC_OS_X ? new OsXFileDescriptorCheck()
            : new FileDescriptorCheck();
    checks.add(fileDescriptorCheck);//from  www  .  j a v  a2 s  .  c  om
    checks.add(new MlockallCheck(BootstrapSettings.MEMORY_LOCK_SETTING.get(settings)));
    if (Constants.LINUX) {
        checks.add(new MaxNumberOfThreadsCheck());
    }
    if (Constants.LINUX || Constants.MAC_OS_X) {
        checks.add(new MaxSizeVirtualMemoryCheck());
    }
    if (Constants.LINUX) {
        checks.add(new MaxMapCountCheck());
    }
    checks.add(new ClientJvmCheck());
    checks.add(new OnErrorCheck());
    checks.add(new OnOutOfMemoryErrorCheck());
    return Collections.unmodifiableList(checks);
}

From source file:org.elasticsearch.bootstrap.BootstrapChecks.java

License:Apache License

static List<BootstrapCheck> checks(final Settings settings) {
    final List<BootstrapCheck> checks = new ArrayList<>();
    checks.add(new HeapSizeCheck());
    final FileDescriptorCheck fileDescriptorCheck = Constants.MAC_OS_X ? new OsXFileDescriptorCheck()
            : new FileDescriptorCheck();
    checks.add(fileDescriptorCheck);/* www  .  j a  va2  s  . c  om*/
    checks.add(new MlockallCheck(BootstrapSettings.MEMORY_LOCK_SETTING.get(settings)));
    if (Constants.LINUX) {
        checks.add(new MaxNumberOfThreadsCheck());
    }
    if (Constants.LINUX || Constants.MAC_OS_X) {
        checks.add(new MaxSizeVirtualMemoryCheck());
    }
    if (Constants.LINUX) {
        checks.add(new MaxMapCountCheck());
    }
    checks.add(new ClientJvmCheck());
    checks.add(new UseSerialGCCheck());
    checks.add(new SystemCallFilterCheck(BootstrapSettings.SYSTEM_CALL_FILTER_SETTING.get(settings)));
    checks.add(new OnErrorCheck());
    checks.add(new OnOutOfMemoryErrorCheck());
    checks.add(new G1GCCheck());
    return Collections.unmodifiableList(checks);
}

From source file:org.elasticsearch.bootstrap.EvilJNANativesTests.java

License:Apache License

public void testSetMaximumNumberOfThreads() throws IOException {
    if (Constants.LINUX) {
        final List<String> lines = Files.readAllLines(PathUtils.get("/proc/self/limits"));
        if (!lines.isEmpty()) {
            for (String line : lines) {
                if (line != null && line.startsWith("Max processes")) {
                    final String[] fields = line.split("\\s+");
                    final long limit = "unlimited".equals(fields[2]) ? JNACLibrary.RLIM_INFINITY
                            : Long.parseLong(fields[2]);
                    assertThat(JNANatives.MAX_NUMBER_OF_THREADS, equalTo(limit));
                    return;
                }/*  w w w.  ja va2s.  c  o  m*/
            }
        }
        fail("should have read max processes from /proc/self/limits");
    } else {
        assertThat(JNANatives.MAX_NUMBER_OF_THREADS, equalTo(-1L));
    }
}

From source file:org.elasticsearch.bootstrap.EvilJNANativesTests.java

License:Apache License

public void testSetMaxSizeVirtualMemory() throws IOException {
    if (Constants.LINUX) {
        final List<String> lines = Files.readAllLines(PathUtils.get("/proc/self/limits"));
        if (!lines.isEmpty()) {
            for (String line : lines) {
                if (line != null && line.startsWith("Max address space")) {
                    final String[] fields = line.split("\\s+");
                    final String limit = fields[3];
                    assertEquals(JNANatives.rlimitToString(JNANatives.MAX_SIZE_VIRTUAL_MEMORY), limit);
                    return;
                }//from w  ww  . jav  a 2 s .  c o  m
            }
        }
        fail("should have read max size virtual memory from /proc/self/limits");
    } else if (Constants.MAC_OS_X) {
        assertThat(JNANatives.MAX_SIZE_VIRTUAL_MEMORY,
                anyOf(equalTo(Long.MIN_VALUE), greaterThanOrEqualTo(0L)));
    } else {
        assertThat(JNANatives.MAX_SIZE_VIRTUAL_MEMORY, equalTo(Long.MIN_VALUE));
    }
}

From source file:org.elasticsearch.bootstrap.JNANatives.java

License:Apache License

static void tryMlockall() {
    int errno = Integer.MIN_VALUE;
    String errMsg = null;//from   w w  w  .  j  a  v a  2s .c  om
    boolean rlimitSuccess = false;
    long softLimit = 0;
    long hardLimit = 0;

    try {
        int result = JNACLibrary.mlockall(JNACLibrary.MCL_CURRENT);
        if (result == 0) {
            LOCAL_MLOCKALL = true;
            return;
        }

        errno = Native.getLastError();
        errMsg = JNACLibrary.strerror(errno);
        if (Constants.LINUX || Constants.MAC_OS_X) {
            // we only know RLIMIT_MEMLOCK for these two at the moment. 
            JNACLibrary.Rlimit rlimit = new JNACLibrary.Rlimit();
            if (JNACLibrary.getrlimit(JNACLibrary.RLIMIT_MEMLOCK, rlimit) == 0) {
                rlimitSuccess = true;
                softLimit = rlimit.rlim_cur.longValue();
                hardLimit = rlimit.rlim_max.longValue();
            } else {
                logger.warn(
                        "Unable to retrieve resource limits: " + JNACLibrary.strerror(Native.getLastError()));
            }
        }
    } catch (UnsatisfiedLinkError e) {
        // this will have already been logged by CLibrary, no need to repeat it
        return;
    }

    // mlockall failed for some reason
    logger.warn("Unable to lock JVM Memory: error=" + errno + ",reason=" + errMsg);
    logger.warn("This can result in part of the JVM being swapped out.");
    if (errno == JNACLibrary.ENOMEM) {
        if (rlimitSuccess) {
            logger.warn("Increase RLIMIT_MEMLOCK, soft limit: " + rlimitToString(softLimit) + ", hard limit: "
                    + rlimitToString(hardLimit));
            if (Constants.LINUX) {
                // give specific instructions for the linux case to make it easy
                String user = System.getProperty("user.name");
                logger.warn("These can be adjusted by modifying /etc/security/limits.conf, for example: \n"
                        + "\t# allow user '" + user + "' mlockall\n" + "\t" + user + " soft memlock unlimited\n"
                        + "\t" + user + " hard memlock unlimited");
                logger.warn(
                        "If you are logged in interactively, you will have to re-login for the new limits to take effect.");
            }
        } else {
            logger.warn("Increase RLIMIT_MEMLOCK (ulimit).");
        }
    }
}

From source file:org.elasticsearch.bootstrap.JNANatives.java

License:Apache License

static String rlimitToString(long value) {
    assert Constants.LINUX || Constants.MAC_OS_X;
    if (value == JNACLibrary.RLIM_INFINITY) {
        return "unlimited";
    } else {/*from  w  w  w . ja va2  s. c om*/
        // TODO, on java 8 use Long.toUnsignedString, since thats what it is.
        return Long.toUnsignedString(value);
    }
}

From source file:org.elasticsearch.bootstrap.MaxMapCountCheckTests.java

License:Apache License

public void testGetMaxMapCountOnLinux() {
    if (Constants.LINUX) {
        final BootstrapCheck.MaxMapCountCheck check = new BootstrapCheck.MaxMapCountCheck();
        assertThat(check.getMaxMapCount(), greaterThan(0L));
    }//from  ww  w .  j  a va  2  s  .  c  o m
}