• File size measurements show the distribution of size of files.
• Files are classified in four categories based on their size (lines of code): 1-100 (very small files), 101-200 (small files), 201-500 (medium size files), 501-1000 (long files), 1001+(very long files).
• It is a good practice to keep files small. Long files may become "bloaters", code that have increased to such gargantuan proportions that they are hard to work with.

• There are 703 files with 67,024 lines of code.
• 1 very long files (1,058 lines of code)
• 13 long files (8,516 lines of code)
• 83 medium size files (24,646 lines of codeclsfd_ftr_w_mp_ins)
• 109 small files (15,063 lines of code)
• 497 very small files (17,741 lines of code)

There are 142 files with lines longer than 120 characters. In total, there are 480 long lines.

File	# lines	# units	# long lines
codeformat.xml in root	291	-	56
MQMessageUtils.java in connector/core/src/main/java/com/alibaba/otter/canal/connector/core/producer	575	9	30
group-instance.xml in deployer/src/main/resources/spring	285	-	26
codetemplates.xml in root	27	-	16
memory-instance.xml in deployer/src/main/resources/spring	176	-	14
file-instance.xml in deployer/src/main/resources/spring	188	-	14
default-instance.xml in deployer/src/main/resources/spring	201	-	14
AbstractEventParser.java in parse/src/main/java/com/alibaba/otter/canal/parse/inbound	546	51	13
MysqlEventParser.java in parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql	774	51	11
ExtensionLoader.java in connector/core/src/main/java/com/alibaba/otter/canal/connector/core/spi	356	16	11
PhoenixEtlService.java in client-adapter/phoenix/src/main/java/com/alibaba/otter/canal/client/adapter/phoenix/service	363	7	9
ClickHouseBatchSyncService.java in client-adapter/clickhouse/src/main/java/com/alibaba/otter/canal/client/adapter/clickhouse/service	418	17	9
ParserCollector.java in prometheus/src/main/java/com/alibaba/otter/canal/prometheus/impl	134	8	9
ExtensionLoader.java in client-adapter/common/src/main/java/com/alibaba/otter/canal/client/adapter/support	344	15	8
LogEventConvert.java in parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/dbsync	894	48	7
PhoenixSyncService.java in client-adapter/phoenix/src/main/java/com/alibaba/otter/canal/client/adapter/phoenix/service	528	13	7
CanalServerWithEmbedded.java in server/src/main/java/com/alibaba/otter/canal/server/embedded	395	29	7
NettySocketChannel.java in driver/src/main/java/com/alibaba/otter/canal/parse/driver/mysql/socket	193	9	5
EntryEventSink.java in sink/src/main/java/com/alibaba/otter/canal/sink/entry	185	16	5
sqlmap_history.xml in deployer/src/main/resources/spring/tsdb/sql-map	39	-	5
MixedMetaManager.java in meta/src/main/java/com/alibaba/otter/canal/meta	99	11	5
FormatDescriptionLogEvent.java in dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event	226	10	4
RocketMQCanalConnector.java in client/src/main/java/com/alibaba/otter/canal/client/rocketmq	284	23	4
RdbSyncService.java in client-adapter/rdb/src/main/java/com/alibaba/otter/canal/client/adapter/rdb/service	405	17	4
ChannelFutureAggregator.java in server/src/main/java/com/alibaba/otter/canal/server/netty/listener	139	24	4
CanalController.java in deployer/src/main/java/com/alibaba/otter/canal/deployer	520	18	4
mysql-tsdb.xml in deployer/src/main/resources/spring/tsdb	55	-	4
DatabaseTableMeta.java in parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/tsdb	535	33	3
NodeServer.vue in admin/admin-ui/src/views/canalServer	456	-	3
TablestoreAdapter.java in client-adapter/tablestore/src/main/java/com/alibaba/otter/canal/client/adapter/tablestore	276	14	3
TablestoreSyncService.java in client-adapter/tablestore/src/main/java/com/alibaba/otter/canal/client/adapter/tablestore/service	268	12	3
PhoenixAdapter.java in client-adapter/phoenix/src/main/java/com/alibaba/otter/canal/client/adapter/phoenix	247	14	3
SessionHandler.java in server/src/main/java/com/alibaba/otter/canal/server/netty/handler	330	8	3
EntryCollector.java in prometheus/src/main/java/com/alibaba/otter/canal/prometheus/impl	114	7	3
StoreCollector.java in prometheus/src/main/java/com/alibaba/otter/canal/prometheus/impl	176	5	3
SpringInstanceConfigMonitor.java in deployer/src/main/java/com/alibaba/otter/canal/deployer/monitor	226	27	3
ManagerInstanceConfigMonitor.java in deployer/src/main/java/com/alibaba/otter/canal/deployer/monitor	150	13	3
h2-tsdb.xml in deployer/src/main/resources/spring/tsdb	53	-	3
sqlmap_snapshot.xml in deployer/src/main/resources/spring/tsdb/sql-map	43	-	3
base-instance.xml in deployer/src/main/resources/spring	35	-	3
QueryLogEvent.java in dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event	400	28	2
LoadLogEvent.java in dbsync/src/main/java/com/taobao/tddl/dbsync/binlog/event	130	14	2
LogBuffer.java in dbsync/src/main/java/com/taobao/tddl/dbsync/binlog	1058	104	2
BioSocketChannelPool.java in driver/src/main/java/com/alibaba/otter/canal/parse/driver/mysql/socket	252	9	2
SimpleDdlParser.java in parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/ddl	163	7	2
HttpHelper.java in parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds	328	6	2
BinlogDownloadQueue.java in parse/src/main/java/com/alibaba/otter/canal/parse/inbound/mysql/rds	295	15	2
index.vue in admin/admin-ui/src/views/login	211	-	2
dev.xml in admin/admin-web/src/main/assembly	52	-	2
KafkaOffsetCanalConnector.java in client/src/main/java/com/alibaba/otter/canal/client/kafka	67	4	2