gamunu/cassandra_snap

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File snapshotting.py has 546 lines of code (exceeds 250 allowed). Consider refactoring.
Open

from __future__ import (absolute_import, print_function)

# From system
import os
import re
Severity: Major
Found in cassandra_snap/snapshotting.py - About 1 day to fix

    Function upload_file has a Cognitive Complexity of 25 (exceeds 5 allowed). Consider refactoring.
    Open

    def upload_file(bucket, source, destination, s3_ssenc, bufsize, reduced_redundancy, rate_limit, quiet):
        mp = None
        retry_count = 0
        sleep_time = SLEEP_TIME
        while True:
    Severity: Minor
    Found in cassandra_snap/agent.py - About 3 hrs to fix

    Cognitive Complexity

    Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

    A method's cognitive complexity is based on a few simple rules:

    • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
    • Code is considered more complex for each "break in the linear flow of the code"
    • Code is considered more complex when "flow breaking structures are nested"

    Further reading

    Function create_upload_manifest has a Cognitive Complexity of 24 (exceeds 5 allowed). Consider refactoring.
    Open

    def create_upload_manifest(
            snapshot_name, snapshot_keyspaces, snapshot_table,
            conf_path, manifest_path, exclude_tables, incremental_backups=False):
        if snapshot_keyspaces:
            keyspace_globs = snapshot_keyspaces.split(',')
    Severity: Minor
    Found in cassandra_snap/agent.py - About 3 hrs to fix

    Cognitive Complexity

    Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

    A method's cognitive complexity is based on a few simple rules:

    • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
    • Code is considered more complex for each "break in the linear flow of the code"
    • Code is considered more complex when "flow breaking structures are nested"

    Further reading

    File main.py has 293 lines of code (exceeds 250 allowed). Consider refactoring.
    Open

    from __future__ import (absolute_import, print_function)
    
    # From system
    from collections import defaultdict
    from fabric.api import env
    Severity: Minor
    Found in cassandra_snap/main.py - About 3 hrs to fix

      Function __init__ has 22 arguments (exceeds 4 allowed). Consider refactoring.
      Open

          def __init__(self, aws_secret_access_key,
      Severity: Major
      Found in cassandra_snap/snapshotting.py - About 2 hrs to fix

        File agent.py has 277 lines of code (exceeds 250 allowed). Consider refactoring.
        Open

        from __future__ import (absolute_import, print_function)
        
        import boto
        from boto.s3.connection import S3Connection
        from yaml import load
        Severity: Minor
        Found in cassandra_snap/agent.py - About 2 hrs to fix

          Function node_start_backup has a Cognitive Complexity of 18 (exceeds 5 allowed). Consider refactoring.
          Open

              def node_start_backup(self, snapshot, incremental_backups):
                  """Runs snapshot command on a cassandra node"""
          
                  def run_cmd(cmd):
                      with hide('running', 'stdout', 'stderr'):
          Severity: Minor
          Found in cassandra_snap/snapshotting.py - About 2 hrs to fix

          Cognitive Complexity

          Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

          A method's cognitive complexity is based on a few simple rules:

          • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
          • Code is considered more complex for each "break in the linear flow of the code"
          • Code is considered more complex when "flow breaking structures are nested"

          Further reading

          Function main has 44 lines of code (exceeds 25 allowed). Consider refactoring.
          Open

          def main():
              base_parser = add_s3_arguments(_base_parser)
              subparsers = base_parser.add_subparsers(
                  title='subcommands', dest='subcommand'
              )
          Severity: Minor
          Found in cassandra_snap/main.py - About 1 hr to fix

            Function upload_node_backups has a Cognitive Complexity of 14 (exceeds 5 allowed). Consider refactoring.
            Open

                def upload_node_backups(self, snapshot, incremental_backups):
                    prefix = os.path.join(snapshot.base_path,
                                          self.get_current_node_hostname())
            
                    manifest_path = '/tmp/backupmanifest'
            Severity: Minor
            Found in cassandra_snap/snapshotting.py - About 1 hr to fix

            Cognitive Complexity

            Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

            A method's cognitive complexity is based on a few simple rules:

            • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
            • Code is considered more complex for each "break in the linear flow of the code"
            • Code is considered more complex when "flow breaking structures are nested"

            Further reading

            Function put_from_manifest has 13 arguments (exceeds 4 allowed). Consider refactoring.
            Open

            def put_from_manifest(
            Severity: Major
            Found in cassandra_snap/agent.py - About 1 hr to fix

              Function configure has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.
              Open

              def configure(*args, **kwargs):
                  """
                  Configure logging.
                  Borrowed from logging.basicConfig
                  Uses the IndentFormatter instead of the regular Formatter
              Severity: Minor
              Found in cassandra_snap/logging_helper.py - About 1 hr to fix

              Cognitive Complexity

              Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

              A method's cognitive complexity is based on a few simple rules:

              • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
              • Code is considered more complex for each "break in the linear flow of the code"
              • Code is considered more complex when "flow breaking structures are nested"

              Further reading

              Function restore has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
              Open

                  def restore(self, keyspace, table, hosts, target_hosts):
                      table_log = "table: %s" % table if table else ''
                      snap_name = os.path.basename(self.snapshot.base_path)
                      logging.info("Restoring keyspace: %(keyspace)s %(table)s "
                                   "from backup %(snap)s" %
              Severity: Minor
              Found in cassandra_snap/snapshotting.py - About 1 hr to fix

              Cognitive Complexity

              Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

              A method's cognitive complexity is based on a few simple rules:

              • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
              • Code is considered more complex for each "break in the linear flow of the code"
              • Code is considered more complex when "flow breaking structures are nested"

              Further reading

              Function restore_backup has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
              Open

              def restore_backup(args):
                  snapshots = SnapshotCollection(
                      args.aws_access_key_id,
                      args.aws_secret_access_key,
                      args.s3_base_path,
              Severity: Minor
              Found in cassandra_snap/main.py - About 1 hr to fix

              Cognitive Complexity

              Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

              A method's cognitive complexity is based on a few simple rules:

              • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
              • Code is considered more complex for each "break in the linear flow of the code"
              • Code is considered more complex when "flow breaking structures are nested"

              Further reading

              Function __init__ has 8 arguments (exceeds 4 allowed). Consider refactoring.
              Open

                  def __init__(self, aws_access_key_id, aws_secret_access_key, snapshot,
              Severity: Major
              Found in cassandra_snap/snapshotting.py - About 1 hr to fix

                Function upload_file has 8 arguments (exceeds 4 allowed). Consider refactoring.
                Open

                def upload_file(bucket, source, destination, s3_ssenc, bufsize, reduced_redundancy, rate_limit, quiet):
                Severity: Major
                Found in cassandra_snap/agent.py - About 1 hr to fix

                  Function compressed_pipe has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
                  Open

                  def compressed_pipe(path, size, rate_limit, quiet):
                      """
                      Returns a generator that yields compressed chunks of
                      the given file_path
                  
                  
                  Severity: Minor
                  Found in cassandra_snap/utils.py - About 55 mins to fix

                  Cognitive Complexity

                  Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                  A method's cognitive complexity is based on a few simple rules:

                  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                  • Code is considered more complex for each "break in the linear flow of the code"
                  • Code is considered more complex when "flow breaking structures are nested"

                  Further reading

                  Function run_backup has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
                  Open

                  def run_backup(args):
                      if args.user:
                          env.user = args.user
                  
                      if args.password:
                  Severity: Minor
                  Found in cassandra_snap/main.py - About 55 mins to fix

                  Cognitive Complexity

                  Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

                  A method's cognitive complexity is based on a few simple rules:

                  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
                  • Code is considered more complex for each "break in the linear flow of the code"
                  • Code is considered more complex when "flow breaking structures are nested"

                  Further reading

                  Function create_upload_manifest has 7 arguments (exceeds 4 allowed). Consider refactoring.
                  Open

                  def create_upload_manifest(
                  Severity: Major
                  Found in cassandra_snap/agent.py - About 50 mins to fix

                    Similar blocks of code found in 2 locations. Consider refactoring.
                    Open

                        def start_cluster_backup(self, snapshot, incremental_backups=False):
                            logging.info("Creating snapshots")
                            with settings(parallel=True, pool_size=self.connection_pool_size):
                                execute(self.node_start_backup, snapshot, incremental_backups)
                    Severity: Minor
                    Found in cassandra_snap/snapshotting.py and 1 other location - About 50 mins to fix
                    cassandra_snap/snapshotting.py on lines 541..544

                    Duplicated Code

                    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                    Tuning

                    This issue has a mass of 36.

                    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                    Refactorings

                    Further Reading

                    Similar blocks of code found in 2 locations. Consider refactoring.
                    Open

                        def upload_cluster_backups(self, snapshot, incremental_backups):
                            logging.info("Uploading backups")
                            with settings(parallel=True, pool_size=self.connection_pool_size):
                                execute(self.upload_node_backups, snapshot, incremental_backups)
                    Severity: Minor
                    Found in cassandra_snap/snapshotting.py and 1 other location - About 50 mins to fix
                    cassandra_snap/snapshotting.py on lines 481..484

                    Duplicated Code

                    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

                    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

                    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

                    Tuning

                    This issue has a mass of 36.

                    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

                    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

                    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

                    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

                    Refactorings

                    Further Reading

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