Merge branch '8784-dir-listings'
[arvados.git] / tools / crunchstat-summary / crunchstat_summary / summarizer.py
index 0d5d6a246cdb084205137b84f1607141146336c2..9b8410e9aafcb9a6b22fbe8aa21a0aa4bb0a27d7 100644 (file)
@@ -1,3 +1,7 @@
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: AGPL-3.0
+
 from __future__ import print_function
 
 import arvados
@@ -11,6 +15,7 @@ import math
 import re
 import sys
 import threading
+import _strptime
 
 from arvados.api import OrderedJsonModel
 from crunchstat_summary import logger
@@ -21,6 +26,11 @@ from crunchstat_summary import logger
 AVAILABLE_RAM_RATIO = 0.95
 
 
+# Workaround datetime.datetime.strptime() thread-safety bug by calling
+# it once before starting threads.  https://bugs.python.org/issue7980
+datetime.datetime.strptime('1999-12-31_23:59:59', '%Y-%m-%d_%H:%M:%S')
+
+
 class Task(object):
     def __init__(self):
         self.starttime = None
@@ -96,79 +106,82 @@ class Summarizer(object):
             if not m:
                 continue
 
-            if self.label is None:
-                self.label = m.group('job_uuid')
-                logger.debug('%s: using job uuid as label', self.label)
-            if m.group('category').endswith(':'):
-                # "stderr crunchstat: notice: ..."
-                continue
-            elif m.group('category') in ('error', 'caught'):
-                continue
-            elif m.group('category') == 'read':
-                # "stderr crunchstat: read /proc/1234/net/dev: ..."
-                # (crunchstat formatting fixed, but old logs still say this)
-                continue
-            task_id = self.seq_to_uuid[int(m.group('seq'))]
-            task = self.tasks[task_id]
-
-            # Use the first and last crunchstat timestamps as
-            # approximations of starttime and finishtime.
-            timestamp = datetime.datetime.strptime(
-                m.group('timestamp'), '%Y-%m-%d_%H:%M:%S')
-            if not task.starttime:
-                task.starttime = timestamp
-                logger.debug('%s: task %s starttime %s',
-                             self.label, task_id, timestamp)
-            task.finishtime = timestamp
-
-            if not self.starttime:
-                self.starttime = timestamp
-            self.finishtime = timestamp
-
-            this_interval_s = None
-            for group in ['current', 'interval']:
-                if not m.group(group):
+            try:
+                if self.label is None:
+                    self.label = m.group('job_uuid')
+                    logger.debug('%s: using job uuid as label', self.label)
+                if m.group('category').endswith(':'):
+                    # "stderr crunchstat: notice: ..."
                     continue
-                category = m.group('category')
-                words = m.group(group).split(' ')
-                stats = {}
-                for val, stat in zip(words[::2], words[1::2]):
-                    try:
-                        if '.' in val:
-                            stats[stat] = float(val)
-                        else:
-                            stats[stat] = int(val)
-                    except ValueError as e:
-                        raise ValueError(
-                            'Error parsing {} stat in "{}": {!r}'.format(
-                                stat, line, e))
-                if 'user' in stats or 'sys' in stats:
-                    stats['user+sys'] = stats.get('user', 0) + stats.get('sys', 0)
-                if 'tx' in stats or 'rx' in stats:
-                    stats['tx+rx'] = stats.get('tx', 0) + stats.get('rx', 0)
-                for stat, val in stats.iteritems():
-                    if group == 'interval':
-                        if stat == 'seconds':
-                            this_interval_s = val
-                            continue
-                        elif not (this_interval_s > 0):
-                            logger.error(
-                                "BUG? interval stat given with duration {!r}".
-                                format(this_interval_s))
-                            continue
+                elif m.group('category') in ('error', 'caught'):
+                    continue
+                elif m.group('category') == 'read':
+                    # "stderr crunchstat: read /proc/1234/net/dev: ..."
+                    # (crunchstat formatting fixed, but old logs still say this)
+                    continue
+                task_id = self.seq_to_uuid[int(m.group('seq'))]
+                task = self.tasks[task_id]
+
+                # Use the first and last crunchstat timestamps as
+                # approximations of starttime and finishtime.
+                timestamp = datetime.datetime.strptime(
+                    m.group('timestamp'), '%Y-%m-%d_%H:%M:%S')
+                if not task.starttime:
+                    task.starttime = timestamp
+                    logger.debug('%s: task %s starttime %s',
+                                 self.label, task_id, timestamp)
+                task.finishtime = timestamp
+
+                if not self.starttime:
+                    self.starttime = timestamp
+                self.finishtime = timestamp
+
+                this_interval_s = None
+                for group in ['current', 'interval']:
+                    if not m.group(group):
+                        continue
+                    category = m.group('category')
+                    words = m.group(group).split(' ')
+                    stats = {}
+                    for val, stat in zip(words[::2], words[1::2]):
+                        try:
+                            if '.' in val:
+                                stats[stat] = float(val)
+                            else:
+                                stats[stat] = int(val)
+                        except ValueError as e:
+                            raise ValueError(
+                                'Error parsing {} stat: {!r}'.format(
+                                    stat, e))
+                    if 'user' in stats or 'sys' in stats:
+                        stats['user+sys'] = stats.get('user', 0) + stats.get('sys', 0)
+                    if 'tx' in stats or 'rx' in stats:
+                        stats['tx+rx'] = stats.get('tx', 0) + stats.get('rx', 0)
+                    for stat, val in stats.iteritems():
+                        if group == 'interval':
+                            if stat == 'seconds':
+                                this_interval_s = val
+                                continue
+                            elif not (this_interval_s > 0):
+                                logger.error(
+                                    "BUG? interval stat given with duration {!r}".
+                                    format(this_interval_s))
+                                continue
+                            else:
+                                stat = stat + '__rate'
+                                val = val / this_interval_s
+                                if stat in ['user+sys__rate', 'tx+rx__rate']:
+                                    task.series[category, stat].append(
+                                        (timestamp - self.starttime, val))
                         else:
-                            stat = stat + '__rate'
-                            val = val / this_interval_s
-                            if stat in ['user+sys__rate', 'tx+rx__rate']:
+                            if stat in ['rss']:
                                 task.series[category, stat].append(
                                     (timestamp - self.starttime, val))
-                    else:
-                        if stat in ['rss']:
-                            task.series[category, stat].append(
-                                (timestamp - self.starttime, val))
-                        self.task_stats[task_id][category][stat] = val
-                    if val > self.stats_max[category][stat]:
-                        self.stats_max[category][stat] = val
+                            self.task_stats[task_id][category][stat] = val
+                        if val > self.stats_max[category][stat]:
+                            self.stats_max[category][stat] = val
+            except Exception as e:
+                logger.info('Skipping malformed line: {}Error was: {}\n'.format(line, e))
         logger.debug('%s: done parsing', self.label)
 
         self.job_tot = collections.defaultdict(
@@ -197,6 +210,8 @@ class Summarizer(object):
         return label
 
     def text_report(self):
+        if not self.tasks:
+            return "(no report generated)\n"
         return "\n".join(itertools.chain(
             self._text_report_gen(),
             self._recommend_gen())) + "\n"
@@ -226,7 +241,8 @@ class Summarizer(object):
                  lambda x: x * 100),
                 ('Overall CPU usage: {}%',
                  self.job_tot['cpu']['user+sys'] /
-                 self.job_tot['time']['elapsed'],
+                 self.job_tot['time']['elapsed']
+                 if self.job_tot['time']['elapsed'] > 0 else 0,
                  lambda x: x * 100),
                 ('Max memory used by a single task: {}GB',
                  self.stats_max['mem']['rss'],
@@ -333,19 +349,20 @@ class Summarizer(object):
                 int(math.ceil(nearlygibs(used_mib))*AVAILABLE_RAM_RATIO*1024))
 
     def _recommend_keep_cache(self):
-        """Recommend increasing keep cache if miss rate is above 0.2%"""
-        if self.job_tot['keepcalls']['get'] == 0:
+        """Recommend increasing keep cache if utilization < 80%"""
+        if self.job_tot['net:keep0']['rx'] == 0:
             return
-        miss_rate = float(self.job_tot['keepcache']['miss']) / float(self.job_tot['keepcalls']['get']) * 100.0
+        utilization = (float(self.job_tot['blkio:0:0']['read']) /
+                       float(self.job_tot['net:keep0']['rx']))
         asked_mib = self.existing_constraints.get('keep_cache_mb_per_task', 256)
 
-        if miss_rate > 0.2:
+        if utilization < 0.8:
             yield (
-                '#!! {} Keep cache miss rate was {:.2f}% -- '
-                'try runtime_constraints "keep_cache_mb_per_task":{}'
+                '#!! {} Keep cache utilization was {:.2f}% -- '
+                'try runtime_constraints "keep_cache_mb_per_task":{} (or more)'
             ).format(
                 self.label,
-                miss_rate,
+                utilization * 100.0,
                 asked_mib*2)
 
 
@@ -374,7 +391,7 @@ class JobSummarizer(Summarizer):
         else:
             self.job = job
         rdr = None
-        if self.job['log']:
+        if self.job.get('log'):
             try:
                 rdr = crunchstat_summary.reader.CollectionReader(self.job['log'])
             except arvados.errors.NotFoundError as e:
@@ -400,15 +417,12 @@ class PipelineSummarizer(object):
             if 'job' not in component:
                 logger.warning(
                     "%s: skipping component with no job assigned", cname)
-            elif component['job'].get('log') is None:
-                logger.warning(
-                    "%s: skipping job %s with no log available",
-                    cname, component['job'].get('uuid'))
             else:
                 logger.info(
-                    "%s: logdata %s", cname, component['job']['log'])
+                    "%s: job %s", cname, component['job']['uuid'])
                 summarizer = JobSummarizer(component['job'], **kwargs)
-                summarizer.label = cname
+                summarizer.label = '{} {}'.format(
+                    cname, component['job']['uuid'])
                 self.summarizers[cname] = summarizer
         self.label = pipeline_instance_uuid