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Use retry syntax in Ruby transaction examples #999

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Jul 30, 2018
Merged

Use retry syntax in Ruby transaction examples #999

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104 changes: 44 additions & 60 deletions spec/integration/transactions_examples_spec.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -40,19 +40,16 @@ def update_employee_info(session)
events_coll.insert_one({ employee: 3, status: { new: 'Inactive', old: 'Active' } },
session: session)

loop do
begin
session.commit_transaction
puts 'Transaction committed.'
break
rescue Mongo::Error => e
if e.label?(Mongo::Error::UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL)
puts "#{Mongo::Error::UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL}, retrying commit operation..."
next
else
puts 'Error during commit ...'
raise
end
begin
session.commit_transaction
puts 'Transaction committed.'
rescue Mongo::Error => e
if e.label?(Mongo::Error::UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL)
puts "#{Mongo::Error::UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL}, retrying commit operation..."
retry
else
puts 'Error during commit ...'
raise
end
end
end
Expand All @@ -78,18 +75,15 @@ def update_employee_info(session)
# Start Transactions Retry Example 1

def run_transaction_with_retry(session)
loop do
begin
yield session # performs transaction
break
rescue Mongo::Error => e
begin
yield session # performs transaction
rescue Mongo::Error => e

puts 'Transaction aborted. Caught exception during transaction.'
raise unless e.label?(Mongo::Error::TRANSIENT_TRANSACTION_ERROR_LABEL)
puts 'Transaction aborted. Caught exception during transaction.'
raise unless e.label?(Mongo::Error::TRANSIENT_TRANSACTION_ERROR_LABEL)

puts "#{Mongo::Error::TRANSIENT_TRANSACTION_ERROR_LABEL}, retrying transaction ..."
next
end
puts "#{Mongo::Error::TRANSIENT_TRANSACTION_ERROR_LABEL}, retrying transaction ..."
retry
end
end

Expand All @@ -112,19 +106,16 @@ def run_transaction_with_retry(session)
# Start Transactions Retry Example 2

def commit_with_retry(session)
loop do
begin
session.commit_transaction
puts 'Transaction committed.'
break
rescue Mongo::Error=> e
if e.label?(Mongo::Error::UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL)
puts "#{Mongo::Error::UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL}, retrying commit operation..."
next
else
puts 'Error during commit ...'
raise
end
begin
session.commit_transaction
puts 'Transaction committed.'
rescue Mongo::Error=> e
if e.label?(Mongo::Error::UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL)
puts "#{Mongo::Error::UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL}, retrying commit operation..."
retry
else
puts 'Error during commit ...'
raise
end
end
end
Expand Down Expand Up @@ -159,34 +150,27 @@ def commit_with_retry(session)
# Start Transactions Retry Example 3

def run_transaction_with_retry(session)
loop do
begin
yield session # performs transaction
break
rescue Mongo::Error=> e
puts 'Transaction aborted. Caught exception during transaction.'
raise unless e.label?(Mongo::Error::TRANSIENT_TRANSACTION_ERROR_LABEL)

puts "#{Mongo::Error::TRANSIENT_TRANSACTION_ERROR_LABEL}, retrying transaction ..."
next
end
begin
yield session # performs transaction
rescue Mongo::Error => e
puts 'Transaction aborted. Caught exception during transaction.'
raise unless e.label?(Mongo::Error::TRANSIENT_TRANSACTION_ERROR_LABEL)
puts "#{Mongo::Error::TRANSIENT_TRANSACTION_ERROR_LABEL}, retrying transaction ..."
retry
end
end

def commit_with_retry(session)
loop do
begin
session.commit_transaction
puts 'Transaction committed.'
break
rescue Mongo::Error => e
if e.label?(Mongo::Error::UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL)
puts "#{Mongo::Error::UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL}, retrying commit operation ..."
next
else
puts 'Error during commit ...'
raise
end
begin
session.commit_transaction
puts 'Transaction committed.'
rescue Mongo::Error => e
if e.label?(Mongo::Error::UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL)
puts "#{Mongo::Error::UNKNOWN_TRANSACTION_COMMIT_RESULT_LABEL}, retrying commit operation ..."
retry
else
puts 'Error during commit ...'
raise
end
end
end
Expand Down