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MCOL-5496: Merge CMAPI code to engine repo.
[add] cmapi code to engine
This commit is contained in:
mariadb-AlanMologorsky
committed by
Alan Mologorsky
Alan Mologorsky
parent
77eedd1756
commit
a079a2c944
579
cmapi/cmapi_server/handlers/cluster.py
Normal file
579
cmapi/cmapi_server/handlers/cluster.py
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@ -0,0 +1,579 @@
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"""Module contains Cluster business logic functions."""
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import logging
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from datetime import datetime
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import requests
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from cmapi_server.constants import (
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CMAPI_CONF_PATH, DEFAULT_MCS_CONF_PATH,
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)
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from cmapi_server.exceptions import CMAPIBasicError
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from cmapi_server.helpers import (
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broadcast_new_config, commit_transaction, get_active_nodes, get_dbroots,
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get_config_parser, get_current_key, get_id, get_version, start_transaction,
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rollback_transaction, update_revision_and_manager,
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)
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from cmapi_server.node_manipulation import (
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add_node, add_dbroot, remove_node, switch_node_maintenance,
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)
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from mcs_node_control.models.misc import get_dbrm_master
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from mcs_node_control.models.node_config import NodeConfig
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class ClusterHandler():
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"""Class for handling MCS Cluster operations."""
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@staticmethod
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def status(
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config: str = DEFAULT_MCS_CONF_PATH,
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logger: logging.Logger = logging.getLogger('cmapi_server')
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) -> dict:
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"""Method to get MCS Cluster status information
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:param config: columnstore xml config file path,
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defaults to DEFAULT_MCS_CONF_PATH
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:type config: str, optional
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:param logger: logger, defaults to logging.getLogger('cmapi_server')
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:type logger: logging.Logger, optional
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:raises CMAPIBasicError: if catch some exception while getting status
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from each node separately
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:return: status result
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:rtype: dict
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"""
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logger.debug('Cluster status command called. Getting status.')
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response = {'timestamp': str(datetime.now())}
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active_nodes = get_active_nodes(config)
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cmapi_cfg_parser = get_config_parser(CMAPI_CONF_PATH)
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api_key = get_current_key(cmapi_cfg_parser)
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headers = {'x-api-key': api_key}
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num_nodes = 0
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for node in active_nodes:
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url = f'https://{node}:8640/cmapi/{get_version()}/node/status'
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try:
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r = requests.get(url, verify=False, headers=headers)
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r.raise_for_status()
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r_json = r.json()
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if len(r_json.get('services', 0)) == 0:
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r_json['dbrm_mode'] = 'offline'
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response[f'{str(node)}'] = r_json
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num_nodes += 1
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except Exception as err:
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raise CMAPIBasicError(
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f'Got an error retrieving status from node {node}'
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) from err
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response['num_nodes'] = num_nodes
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logger.debug('Successfully finished getting cluster status.')
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return response
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@staticmethod
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def start(
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config: str = DEFAULT_MCS_CONF_PATH,
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logger: logging.Logger = logging.getLogger('cmapi_server')
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) -> dict:
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"""Method to start MCS Cluster.
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:param config: columnstore xml config file path,
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defaults to DEFAULT_MCS_CONF_PATH
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:type config: str, optional
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:param logger: logger, defaults to logging.getLogger('cmapi_server')
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:type logger: logging.Logger, optional
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:raises CMAPIBasicError: on exception while starting transaction
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:raises CMAPIBasicError: if transaction start isn't successful
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:raises CMAPIBasicError: if no nodes in the cluster
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:raises CMAPIBasicError: on exception while distributing new config
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:raises CMAPIBasicError: on unsuccessful distibuting config file
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:raises CMAPIBasicError: on exception while committing transaction
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:return: start timestamp
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:rtype: dict
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"""
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logger.debug('Cluster start command called. Starting the cluster.')
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start_time = str(datetime.now())
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transaction_id = get_id()
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try:
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suceeded, transaction_id, successes = start_transaction(
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cs_config_filename=config, id=transaction_id
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)
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except Exception as err:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError(
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'Error while starting the transaction.'
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) from err
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if not suceeded:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError('Starting transaction isn\'t successful.')
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if suceeded and len(successes) == 0:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError('There are no nodes in the cluster.')
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switch_node_maintenance(False)
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update_revision_and_manager()
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# TODO: move this from multiple places to one, eg to helpers
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try:
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broadcast_successful = broadcast_new_config(config)
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except Exception as err:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError(
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'Error while distributing config file.'
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) from err
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if not broadcast_successful:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError('Config distribution isn\'t successful.')
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try:
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commit_transaction(transaction_id, cs_config_filename=config)
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except Exception as err:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError(
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'Error while committing transaction.'
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) from err
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logger.debug('Successfully finished cluster start.')
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return {'timestamp': start_time}
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@staticmethod
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def shutdown(
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config: str = DEFAULT_MCS_CONF_PATH,
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logger: logging.Logger = logging.getLogger('cmapi_server')
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) -> dict:
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"""Method to stop the MCS Cluster.
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:param config: columnstore xml config file path,
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defaults to DEFAULT_MCS_CONF_PATH
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:type config: str, optional
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:param logger: logger, defaults to logging.getLogger('cmapi_server')
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:type logger: logging.Logger, optional
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:raises CMAPIBasicError: if no nodes in the cluster
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:return: start timestamp
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:rtype: dict
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"""
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logger.debug(
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'Cluster shutdown command called. Shutting down the cluster.'
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)
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start_time = str(datetime.now())
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transaction_id = get_id()
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try:
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suceeded, transaction_id, successes = start_transaction(
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cs_config_filename=config, id=transaction_id
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)
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except Exception as err:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError(
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'Error while starting the transaction.'
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) from err
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if not suceeded:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError('Starting transaction isn\'t successful.')
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if suceeded and len(successes) == 0:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError('There are no nodes in the cluster.')
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switch_node_maintenance(True)
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update_revision_and_manager()
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# TODO: move this from multiple places to one, eg to helpers
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try:
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broadcast_successful = broadcast_new_config(config)
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except Exception as err:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError(
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'Error while distributing config file.'
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) from err
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if not broadcast_successful:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError('Config distribution isn\'t successful.')
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try:
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commit_transaction(transaction_id, cs_config_filename=config)
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except Exception as err:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError(
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'Error while committing transaction.'
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) from err
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logger.debug('Successfully finished shutting down the cluster.')
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return {'timestamp': start_time}
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@staticmethod
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def add_node(
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node: str, config: str = DEFAULT_MCS_CONF_PATH,
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logger: logging.Logger = logging.getLogger('cmapi_server')
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) -> dict:
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"""Method to add node to MCS CLuster.
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:param node: node IP or name or FQDN
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:type node: str
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:param config: columnstore xml config file path,
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defaults to DEFAULT_MCS_CONF_PATH
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:type config: str, optional
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:param logger: logger, defaults to logging.getLogger('cmapi_server')
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:type logger: logging.Logger, optional
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:raises CMAPIBasicError: on exception while starting transaction
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:raises CMAPIBasicError: if transaction start isn't successful
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:raises CMAPIBasicError: on exception while adding node
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:raises CMAPIBasicError: on exception while distributing new config
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:raises CMAPIBasicError: on unsuccessful distibuting config file
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:raises CMAPIBasicError: on exception while committing transaction
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:return: result of adding node
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:rtype: dict
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"""
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logger.debug(f'Cluster add node command called. Adding node {node}.')
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response = {'timestamp': str(datetime.now())}
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transaction_id = get_id()
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try:
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suceeded, transaction_id, successes = start_transaction(
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cs_config_filename=config, extra_nodes=[node],
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id=transaction_id
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)
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except Exception as err:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError(
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'Error while starting the transaction.'
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) from err
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if not suceeded:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError('Starting transaction isn\'t successful.')
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try:
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add_node(
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node, input_config_filename=config,
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output_config_filename=config
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)
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if not get_dbroots(node, config):
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add_dbroot(
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host=node, input_config_filename=config,
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output_config_filename=config
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)
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except Exception as err:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError('Error while adding node.') from err
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response['node_id'] = node
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update_revision_and_manager(
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input_config_filename=config, output_config_filename=config
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)
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try:
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broadcast_successful = broadcast_new_config(config)
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except Exception as err:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError(
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'Error while distributing config file.'
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) from err
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if not broadcast_successful:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError('Config distribution isn\'t successful.')
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try:
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commit_transaction(transaction_id, cs_config_filename=config)
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except Exception as err:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError(
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'Error while committing transaction.'
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) from err
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logger.debug(f'Successfully finished adding node {node}.')
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return response
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@staticmethod
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def remove_node(
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node: str, config: str = DEFAULT_MCS_CONF_PATH,
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logger: logging.Logger = logging.getLogger('cmapi_server')
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) -> dict:
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"""Method to remove node from MCS CLuster.
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:param node: node IP or name or FQDN
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:type node: str
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:param config: columnstore xml config file path,
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defaults to DEFAULT_MCS_CONF_PATH
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:type config: str, optional
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:param logger: logger, defaults to logging.getLogger('cmapi_server')
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:type logger: logging.Logger, optional
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:raises CMAPIBasicError: on exception while starting transaction
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:raises CMAPIBasicError: if transaction start isn't successful
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:raises CMAPIBasicError: on exception while removing node
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:raises CMAPIBasicError: on exception while distributing new config
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:raises CMAPIBasicError: on unsuccessful distibuting config file
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:raises CMAPIBasicError: on exception while committing transaction
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:return: result of node removing
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:rtype: dict
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"""
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logger.debug(
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f'Cluster remove node command called. Removing node {node}.'
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)
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response = {'timestamp': str(datetime.now())}
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transaction_id = get_id()
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try:
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suceeded, transaction_id, txn_nodes = start_transaction(
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cs_config_filename=config, remove_nodes=[node],
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id=transaction_id
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)
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except Exception as err:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError(
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'Error while starting the transaction.'
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) from err
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if not suceeded:
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rollback_transaction(transaction_id, cs_config_filename=config)
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raise CMAPIBasicError('Starting transaction isn\'t successful.')
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try:
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remove_node(
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node, input_config_filename=config,
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output_config_filename=config
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)
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except Exception as err:
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rollback_transaction(
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transaction_id, nodes=txn_nodes, cs_config_filename=config
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)
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raise CMAPIBasicError('Error while removing node.') from err
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response['node_id'] = node
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if len(txn_nodes) > 0:
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update_revision_and_manager(
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input_config_filename=config, output_config_filename=config
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)
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try:
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broadcast_successful = broadcast_new_config(
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config, nodes=txn_nodes
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)
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except Exception as err:
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rollback_transaction(
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transaction_id, nodes=txn_nodes, cs_config_filename=config
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)
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raise CMAPIBasicError(
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'Error while distributing config file.'
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) from err
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if not broadcast_successful:
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rollback_transaction(
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transaction_id, nodes=txn_nodes, cs_config_filename=config
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)
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raise CMAPIBasicError('Config distribution isn\'t successful.')
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try:
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commit_transaction(transaction_id, cs_config_filename=config)
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except Exception as err:
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rollback_transaction(
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transaction_id, nodes=txn_nodes, cs_config_filename=config
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)
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raise CMAPIBasicError(
|
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'Error while committing transaction.'
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) from err
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logger.debug(f'Successfully finished removing node {node}.')
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return response
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@staticmethod
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def set_mode(
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mode: str, timeout:int = 60, config: str = DEFAULT_MCS_CONF_PATH,
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logger: logging.Logger = logging.getLogger('cmapi_server')
|
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) -> dict:
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"""Method to set MCS CLuster mode.
|
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:param mode: cluster mode to set, can be only "readonly" or "readwrite"
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:type mode: str
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:param config: columnstore xml config file path,
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defaults to DEFAULT_MCS_CONF_PATH
|
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:type config: str, optional
|
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:param logger: logger, defaults to logging.getLogger('cmapi_server')
|
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:type logger: logging.Logger, optional
|
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:raises CMAPIBasicError: if no master found in the cluster
|
||||
:raises CMAPIBasicError: on exception while starting transaction
|
||||
:raises CMAPIBasicError: if transaction start isn't successful
|
||||
:raises CMAPIBasicError: on exception while adding node
|
||||
:raises CMAPIBasicError: on exception while distributing new config
|
||||
:raises CMAPIBasicError: on unsuccessful distibuting config file
|
||||
:raises CMAPIBasicError: on exception while committing transaction
|
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:return: result of adding node
|
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:rtype: dict
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"""
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logger.debug(
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f'Cluster mode set command called. Setting mode to {mode}.'
|
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)
|
||||
|
||||
response = {'timestamp': str(datetime.now())}
|
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cmapi_cfg_parser = get_config_parser(CMAPI_CONF_PATH)
|
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api_key = get_current_key(cmapi_cfg_parser)
|
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headers = {'x-api-key': api_key}
|
||||
transaction_id = get_id()
|
||||
|
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master = None
|
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if len(get_active_nodes(config)) != 0:
|
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master = get_dbrm_master(config)
|
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|
||||
if master is None:
|
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raise CMAPIBasicError('No master found in the cluster.')
|
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else:
|
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master = master['IPAddr']
|
||||
payload = {'cluster_mode': mode}
|
||||
url = f'https://{master}:8640/cmapi/{get_version()}/node/config'
|
||||
|
||||
try:
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||||
suceeded, transaction_id, successes = start_transaction(
|
||||
cs_config_filename=config, id=transaction_id
|
||||
)
|
||||
except Exception as err:
|
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rollback_transaction(transaction_id, cs_config_filename=config)
|
||||
raise CMAPIBasicError(
|
||||
'Error while starting the transaction.'
|
||||
) from err
|
||||
if not suceeded:
|
||||
rollback_transaction(transaction_id, cs_config_filename=config)
|
||||
raise CMAPIBasicError('Starting transaction isn\'t successful.')
|
||||
|
||||
nc = NodeConfig()
|
||||
root = nc.get_current_config_root(config_filename=config)
|
||||
payload['manager'] = root.find('./ClusterManager').text
|
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payload['revision'] = root.find('./ConfigRevision').text
|
||||
payload['timeout'] = timeout
|
||||
payload['cluster_mode'] = mode
|
||||
|
||||
try:
|
||||
r = requests.put(url, headers=headers, json=payload, verify=False)
|
||||
r.raise_for_status()
|
||||
response['cluster-mode'] = mode
|
||||
except Exception as err:
|
||||
rollback_transaction(transaction_id, cs_config_filename=config)
|
||||
raise CMAPIBasicError(
|
||||
f'Error while setting cluster mode to {mode}'
|
||||
) from err
|
||||
|
||||
try:
|
||||
commit_transaction(transaction_id, cs_config_filename=config)
|
||||
except Exception as err:
|
||||
rollback_transaction(transaction_id, cs_config_filename=config)
|
||||
raise CMAPIBasicError(
|
||||
'Error while committing transaction.'
|
||||
) from err
|
||||
|
||||
logger.debug(f'Successfully set cluster mode to {mode}.')
|
||||
return response
|
||||
|
||||
@staticmethod
|
||||
def set_api_key(
|
||||
api_key: str, verification_key: str,
|
||||
config: str = DEFAULT_MCS_CONF_PATH,
|
||||
logger: logging.Logger = logging.getLogger('cmapi_server')
|
||||
) -> dict:
|
||||
"""Method to set API key for each CMAPI node in cluster.
|
||||
|
||||
:param api_key: API key to set
|
||||
:type api_key: str
|
||||
:param verification_key: TOTP key to verify
|
||||
:type verification_key: str
|
||||
:param config: columnstore xml config file path,
|
||||
defaults to DEFAULT_MCS_CONF_PATH
|
||||
:type config: str, optional
|
||||
:param logger: logger, defaults to logging.getLogger('cmapi_server')
|
||||
:type logger: logging.Logger, optional
|
||||
:raises CMAPIBasicError: if catch some exception while setting API key
|
||||
to each node
|
||||
:return: status result
|
||||
:rtype: dict
|
||||
"""
|
||||
logger.debug('Cluster set API key command called.')
|
||||
|
||||
active_nodes = get_active_nodes(config)
|
||||
body = {
|
||||
'api_key': api_key,
|
||||
'verification_key': verification_key
|
||||
}
|
||||
response = {}
|
||||
# only for changing response object below
|
||||
active_nodes_count = len(active_nodes)
|
||||
|
||||
if not active_nodes:
|
||||
# set api key in configuration file on this node
|
||||
logger.debug(
|
||||
'No active nodes found, set API key into current CMAPI conf.'
|
||||
)
|
||||
active_nodes.append('localhost')
|
||||
|
||||
for node in active_nodes:
|
||||
logger.debug(f'Setting new api key to "{node}".')
|
||||
url = f'https://{node}:8640/cmapi/{get_version()}/node/apikey-set'
|
||||
try:
|
||||
resp = requests.put(url, verify=False, json=body)
|
||||
resp.raise_for_status()
|
||||
r_json = resp.json()
|
||||
if active_nodes_count > 0:
|
||||
response[str(node)] = r_json
|
||||
except Exception as err:
|
||||
raise CMAPIBasicError(
|
||||
f'Got an error setting API key to "{node}".'
|
||||
) from err
|
||||
logger.debug(f'Successfully set new api key to "{node}".')
|
||||
|
||||
response['timestamp'] = str(datetime.now())
|
||||
logger.debug(
|
||||
'Successfully finished setting new API key to all nodes.'
|
||||
)
|
||||
return response
|
||||
|
||||
@staticmethod
|
||||
def set_log_level(
|
||||
level: str, config: str = DEFAULT_MCS_CONF_PATH,
|
||||
logger: logging.Logger = logging.getLogger('cmapi_server')
|
||||
) -> dict:
|
||||
"""Method to set level for loggers on each CMAPI node in cluster.
|
||||
|
||||
:param level: logging level, including custom
|
||||
:type level: str
|
||||
:param config: columnstore xml config file path,
|
||||
defaults to DEFAULT_MCS_CONF_PATH
|
||||
:type config: str, optional
|
||||
:param logger: logger, defaults to logging.getLogger('cmapi_server')
|
||||
:type logger: logging.Logger, optional
|
||||
:return: status result
|
||||
:rtype: dict
|
||||
"""
|
||||
logger.debug('Cluster set new logging level called.')
|
||||
|
||||
active_nodes = get_active_nodes(config)
|
||||
body = {'level': level}
|
||||
response = {}
|
||||
# only for changing response object below
|
||||
active_nodes_count = len(active_nodes)
|
||||
|
||||
if not active_nodes:
|
||||
# set api key in configuration file on this node
|
||||
logger.debug(
|
||||
'No active nodes found, set log level onluy for current node.'
|
||||
)
|
||||
active_nodes.append('localhost')
|
||||
|
||||
for node in active_nodes:
|
||||
logger.debug(f'Setting new log level to "{node}".')
|
||||
url = f'https://{node}:8640/cmapi/{get_version()}/node/log-level'
|
||||
try:
|
||||
resp = requests.put(url, verify=False, json=body)
|
||||
resp.raise_for_status()
|
||||
r_json = resp.json()
|
||||
if active_nodes_count > 0:
|
||||
response[str(node)] = r_json
|
||||
except Exception as err:
|
||||
raise CMAPIBasicError(
|
||||
f'Got an error setting log level to "{node}".'
|
||||
) from err
|
||||
logger.debug(f'Successfully set new log level to "{node}".')
|
||||
|
||||
response['timestamp'] = str(datetime.now())
|
||||
logger.debug(
|
||||
'Successfully finished setting new log level to all nodes.'
|
||||
)
|
||||
return response
|
||||
Reference in New Issue
Block a user