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Last change
on this file since 30354 was 27006, checked in by jmt12, 11 years ago |
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A companion script to stop-hadoop-processes that just reports running Hadoop processes. Useful to determine if all compute nodes has launched Hadoop properly. In related news, putting the Hadoop pid files in a shared location results in some compute nodes not launching properly.
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-
Property svn:executable
set to
*
-
Property svn:mime-type
set to
application/x-perl
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File size:
668 bytes
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| Line | |
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| 1 | #!/usr/bin/perl
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| 2 |
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| 3 | use strict;
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| 4 | use warnings;
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| 5 |
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| 6 | my $debug = 0;
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| 7 |
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| 8 | print "===== Report Hadoop Nodes =====\n";
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| 9 |
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| 10 | print " * Searching running processes...\n";
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| 11 | open(FIN, 'ps ax -o pid,command |') or die($!);
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| 12 | my $line = '';
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| 13 | my $found_process = 0;
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| 14 | while (($line = <FIN>))
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| 15 | {
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| 16 | # Kill import processes
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| 17 | if ($line =~ /^\s*(\d+)\s+(.*)java -Dproc_(datanode|jobtracker|namenode|secondarynamenode|tasktracker)/)
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| 18 | {
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| 19 | my $pid = $1;
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| 20 | my $prefix = $2;
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| 21 | my $type = $3;
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| 22 | print " - Found " . $type . " process: [" . $pid . "]\n";
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| 23 | $found_process = 1;
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| 24 | }
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| 25 | }
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| 26 | close(FIN);
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| 27 |
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| 28 | if (!$found_process)
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| 29 | {
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| 30 | print " * No running Hadoop processes found!\n";
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| 31 | }
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| 32 |
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| 33 | print "Complete!\n\n";
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| 34 |
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| 35 | exit;
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