1 | #!/usr/bin/perl
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2 |
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3 | # Pragma
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4 | use strict;
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5 | use warnings;
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6 |
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7 | # Configuration
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8 | my $debug = 0;
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9 |
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10 | # Requires setup.bash to have been sourced
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11 | BEGIN
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12 | {
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13 | die "GSDLHOME not set\n" unless defined $ENV{'GSDLHOME'};
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14 | die "GSDLOS not set\n" unless defined $ENV{'GSDLOS'};
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15 | die "HADOOP_PREFIX not set (set in <gsdl>/ext/parallel_processing/setup.bash)\n" unless defined $ENV{'HADOOP_PREFIX'};
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16 | die "HDFS HOST not set (set in <gsdl>/ext/parallel_processing/setup.bash)\n" unless defined $ENV{'HDFSHOST'};
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17 | die "HDFS PORT not set (set in <gsdl>/ext/parallel_processing/setup.bash)\n" unless defined $ENV{'HDFSPORT'};
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18 | # Ensure Greenstone Perl locations are in INC
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19 | unshift (@INC, $ENV{'GSDLHOME'} . '/perllib');
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20 | unshift (@INC, $ENV{'GSDLHOME'} . '/perllib/cpan');
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21 | # we'll need the perl version number
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22 | my ($version_number) = `perl-version.pl`;
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23 | if (defined $ENV{'GSDLEXTS'})
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24 | {
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25 | my @extensions = split(/:/,$ENV{'GSDLEXTS'});
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26 | foreach my $e (@extensions)
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27 | {
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28 | my $ext_prefix = $ENV{'GSDLHOME'} . '/ext/' . $e;
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29 | unshift (@INC, $ext_prefix . '/perllib');
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30 | unshift (@INC, $ext_prefix . '/perllib/cpan');
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31 | unshift (@INC, $ext_prefix . '/' . $ENV{'GSDLOS'} . '/lib/perl/' . $version_number);
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32 | }
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33 | }
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34 | }
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35 |
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36 | # Libraries (depends on unshift above
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37 | use Sort::Key::Natural qw(natsort);
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38 |
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39 | # Begin
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40 | print "===== Parse Hadoop Log =====\n";
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41 |
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42 | # 0. Init
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43 | if (!defined $ARGV[0])
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44 | {
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45 | die("usage: parse_task_info_from_hadoop_log.pl <results dir> [-debug]\n");
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46 | }
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47 | my $results_dir = $ARGV[0];
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48 | if (!-d $results_dir)
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49 | {
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50 | die("Error! Can't find results directory: " . $results_dir . "\n");
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51 | }
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52 | print " Results directory: " . $results_dir . "\n";
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53 |
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54 | if (defined $ARGV[1] && $ARGV[1] eq '-debug')
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55 | {
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56 | $debug = 1;
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57 | }
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58 |
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59 | # 1. Determine job ID
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60 | my $hadoop_log_path = &fileCat($results_dir, 'hadoop.log');
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61 | if (!-e $hadoop_log_path)
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62 | {
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63 | die("Error! Hadoop log file cannot be found: " . $hadoop_log_path . "\n");
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64 | }
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65 | print " Hadoop log path: " . $hadoop_log_path . "\n";
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66 | print " * Determine JobID: ";
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67 | my $job_id;
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68 | my $result = `grep "Running job:" "$hadoop_log_path"`;
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69 | if ($result =~ /Running job: job_(\d+_\d+)/)
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70 | {
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71 | $job_id = $1;
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72 | }
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73 | else
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74 | {
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75 | die("Error! Failed to locate JobID\n");
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76 | }
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77 | print $job_id . "\n";
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78 | # - we'll need the date to locate the appopriate log file
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79 | my $log_date_year = 0;
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80 | my $log_date_month = 0;
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81 | my $log_date_day = 0;
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82 | if ($job_id =~ /^(\d\d\d\d)(\d\d)(\d\d)/)
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83 | {
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84 | $log_date_year = $1;
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85 | $log_date_month = $2;
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86 | $log_date_day = $3;
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87 | }
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88 | else
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89 | {
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90 | die('Error! Failed to parse date from Job ID: ' . $job_id . "\n");
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91 | }
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92 |
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93 | # 2. Determine user and system details
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94 | my $username = `whoami`;
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95 | chomp($username);
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96 | print " Username: " . $username . "\n";
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97 | my $hostname = `hostname`;
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98 | chomp($hostname);
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99 | print " Hostname: " . $hostname . "\n";
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100 | my $data_locality_report_path = &fileCat($results_dir, 'data_locality.csv');
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101 | print " Report path: " . $data_locality_report_path . "\n";
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102 |
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103 | # 3. Parse log
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104 | print " * Parse JobTracker Log(s)...\n";
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105 | my $tid_2_splits = {};
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106 | my $tid_2_node = {};
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107 | my $aid_2_node = {};
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108 | my $job_complete = 0;
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109 | my $parsed_latest_log = 0;
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110 | while (!$job_complete && !$parsed_latest_log)
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111 | {
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112 | # - determine appropriate job tracker log
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113 | my $jobtracker_log_path_prefix = &fileCat($ENV{'HADOOP_PREFIX'}, 'logs', 'hadoop-' . $username . '-jobtracker-' . $hostname . '.log');
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114 | my $jobtracker_log_path = sprintf('%s.%04d-%02d-%02d', $jobtracker_log_path_prefix, $log_date_year, $log_date_month, $log_date_day);
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115 | # - maybe the log hasn't been rolled yet
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116 | if (!-e $jobtracker_log_path)
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117 | {
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118 | $jobtracker_log_path = $jobtracker_log_path_prefix;
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119 | # - nope, no applicable log found
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120 | if (!-e $jobtracker_log_path)
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121 | {
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122 | die('Error! Hadoop JobTracker log file cannot be found: ' . $jobtracker_log_path . "\n");
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123 | }
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124 | else
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125 | {
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126 | $parsed_latest_log = 1;
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127 | }
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128 | }
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129 | print " - parsing JobTracker log: " . $jobtracker_log_path . "\n";
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130 |
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131 | if (open(JTLIN, '<', $jobtracker_log_path))
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132 | {
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133 | my $line = '';
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134 | while ($line = <JTLIN>)
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135 | {
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136 | # Tips provide a match between task and file splits
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137 | if ($line =~ /tip:task_${job_id}(_m_\d+) has split on node:\/default-rack\/([^\.\r\n]+)/)
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138 | {
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139 | my $task_id = $job_id . $1;
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140 | my $compute_node = $2;
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141 | &debugPrint('found tip: ' . $task_id . ' => ' . $compute_node);
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142 | if (!defined $tid_2_splits->{$task_id})
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143 | {
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144 | $tid_2_splits->{$task_id} = [$compute_node];
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145 | }
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146 | else
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147 | {
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148 | push(@{$tid_2_splits->{$task_id}}, $compute_node);
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149 | }
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150 | }
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151 | # JobTracker (MAP) entries give us a mapping between task, attempt, and
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152 | # compute node
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153 | elsif ($line =~ /Adding task \(MAP\) 'attempt_${job_id}(_m_\d+)(_\d+)'.*tracker_([^\.]+).local/)
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154 | {
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155 | my $task_id = $job_id . $1;
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156 | my $attempt_id = $job_id . $1 . $2;
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157 | my $compute_node = $3;
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158 | &debugPrint('found MAP: ' . $attempt_id . ' => ' . $compute_node);
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159 | $aid_2_node->{$attempt_id} = {'compute_node' => $compute_node,
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160 | 'succeeded' => 0
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161 | };
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162 | }
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163 | # Watch for attempt successes (so we can weed out failures)
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164 | elsif ($line =~ /Task 'attempt_${job_id}(_m_\d+_\d+)' has completed .* successfully/)
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165 | {
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166 | my $attempt_id = $job_id . $1;
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167 | &debugPrint('successful attempt: ' . $attempt_id);
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168 | if (defined $aid_2_node->{$attempt_id})
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169 | {
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170 | $aid_2_node->{$attempt_id}->{'succeeded'} = 1;
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171 | }
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172 | }
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173 | # And job completion... so we can keep parsing other log files as
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174 | # necessary
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175 | elsif ($line =~ /Job job_${job_id} has completed successfully\./)
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176 | {
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177 | $job_complete = 1;
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178 | }
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179 | }
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180 | close(JTLIN);
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181 | }
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182 | else
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183 | {
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184 | die('Error! Failed to open JobTracker log for reading: ' . $jobtracker_log_path . "\n");
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185 | }
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186 | # Increment the day by one - unfortunately this leads to unpleasant date
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187 | # maths to ensure month and year roll over appropriately too
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188 | $log_date_day++;
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189 | # On to a new month?
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190 | # Leap Year Feb > 29 otherwise Feb > 28
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191 | # Apr, Jun, Sep, Nov > 30
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192 | # Rest > 31
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193 | if ($log_date_month == 2 && ((&isLeapYear($log_date_year) && $log_date_day > 29) || $log_date_day > 28))
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194 | {
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195 | $log_date_day = 1;
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196 | $log_date_month++;
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197 | }
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198 | elsif (($log_date_month == 4 || $log_date_month == 6 || $log_date_month == 9 || $log_date_month == 11) && $log_date_day > 30)
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199 | {
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200 | $log_date_day = 1;
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201 | $log_date_month++;
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202 | }
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203 | elsif ($log_date_day > 31)
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204 | {
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205 | $log_date_day = 1;
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206 | $log_date_month++;
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207 | }
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208 | # On to a new year?
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209 | if ($log_date_month > 12)
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210 | {
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211 | $log_date_month = 1;
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212 | $log_date_year++;
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213 | }
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214 | }
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215 | print " Done\n";
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216 |
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217 | if (!$job_complete)
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218 | {
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219 | print "Warning! Failed to parse in information for a complete job.\n";
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220 | }
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221 |
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222 | # 4. Write CSV of information
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223 | print " * Writing Job Information... ";
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224 | &debugPrint("AttemptID \tComputeNode\tSucceeded", 1);
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225 | foreach my $attempt_id (keys %{$aid_2_node})
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226 | {
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227 | &debugPrint($attempt_id . "\t" . $aid_2_node->{$attempt_id}->{'compute_node'} . "\t" . $aid_2_node->{$attempt_id}->{'succeeded'});
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228 | }
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229 | &debugPrint("TaskID \tComputeNodeSplits");
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230 | my $split_counter = 0;
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231 | foreach my $task_id (keys %{$tid_2_splits})
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232 | {
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233 | &debugPrint($task_id . "\t" . join(',', natsort(@{$tid_2_splits->{$task_id}})));
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234 | $split_counter++;
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235 | }
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236 | &debugPrint(' * Number of split records: ' . $split_counter);
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237 | &debugPrint('');
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238 |
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239 | # - open the CSV file and write out the combined information from above
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240 | if (open(CSVOUT, '>:utf8', $data_locality_report_path))
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241 | {
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242 | print CSVOUT "TaskNo,AttemptNo,Data Local,Compute Node,Splits\n";
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243 | foreach my $attempt_id (natsort(keys %{$aid_2_node}))
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244 | {
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245 | my ($job_id, $task_number, $attempt_number) = $attempt_id =~ /^(\d+_\d+)_m_(\d+)_(\d+)/;
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246 | my $task_id = $job_id . '_m_' . $task_number;
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247 | my $compute_node = $aid_2_node->{$attempt_id}->{'compute_node'};
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248 | if (defined $tid_2_splits->{$task_id})
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249 | {
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250 | my @splits = @{$tid_2_splits->{$task_id}};
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251 | my $data_local = 0;
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252 | if (grep($_ eq $compute_node, @splits))
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253 | {
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254 | $data_local = 1;
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255 | }
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256 | print CSVOUT $task_number . "," . $attempt_number . "," . $data_local . ",\"" . $compute_node . "\",\"" . join(',', natsort(@splits)) . "\"\n";
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257 | delete($tid_2_splits->{$task_id});
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258 | }
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259 | else
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260 | {
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261 | print "Warning! Missing data location information for task: " . $task_id . "\n";
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262 | }
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263 | }
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264 |
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265 | # Report on any other splits that were recorded in the log, but for unknown
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266 | # reasons aren't matched with a 'successful' task
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267 | foreach my $task_id (keys %{$tid_2_splits})
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268 | {
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269 | if (defined $tid_2_splits->{$task_id})
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270 | {
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271 | my ($job_id, $task_number) = $task_id =~ /^(\d+_\d+)_m_(\d+)/;
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272 | my @splits = @{$tid_2_splits->{$task_id}};
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273 | print CSVOUT $task_number . ",-1,-1,\"\",\"" . join(',', natsort(@splits)) . "\"\n";
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274 | }
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275 | }
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276 |
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277 | close(CSVOUT);
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278 | }
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279 | else
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280 | {
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281 | die("Error! Failed to open file for writing: " . $data_locality_report_path);
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282 | }
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283 | print "Done\n";
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284 |
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285 | # 5. Done
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286 | print "===== Complete! =====\n\n";
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287 | exit;
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288 |
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289 | # Subs
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290 |
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291 | sub debugPrint
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292 | {
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293 | my ($msg, $force_newline) = @_;
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294 | if ($debug)
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295 | {
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296 | if (defined $force_newline && $force_newline)
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297 | {
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298 | print "\n[debug] " . $msg . "\n";
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299 | }
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300 | else
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301 | {
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302 | print '[debug] ' . $msg . "\n";
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303 | }
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304 | }
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305 | }
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306 |
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307 | sub fileCat
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308 | {
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309 | my $path = join('/', @_);
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310 | $path =~ s/\/\/+/\//g;
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311 | return $path;
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312 | }
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313 |
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314 | ## @function isLeapYear()
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315 | #
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316 | sub isLeapYear
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317 | {
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318 | my ($year) = @_;
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319 | if ($year % 400 == 0)
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320 | {
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321 | return 1;
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322 | }
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323 | elsif ($year % 100 == 0)
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324 | {
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325 | return 0;
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326 | }
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327 | elsif ($year % 4 == 0)
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328 | {
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329 | return 1;
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330 | }
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331 | return 0;
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332 | }
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333 | ## isLeapYear() ##
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334 |
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335 | 1;
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