Jinrui Zhang created IOTDB-5928:
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Summary: DeadLock between TTL and Compaction
Key: IOTDB-5928
URL: https://issues.apache.org/jira/browse/IOTDB-5928
Project: Apache IoTDB
Issue Type: Improvement
Reporter: Jinrui Zhang
Assignee: Jinrui Zhang
Fix For: 1.1.1
h4. 版本
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Enterprise version 1.1.1-SNAPSHOT (Build: a8387f1)
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h4. 复现步骤
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问题描述：
TTL 和 合并并发产生死锁，数据写入不进去（没报错信息）。
测试流程如下：
1. 测试版本
Enterprise version 1.1.1-SNAPSHOT (Build: a8387f1)
启动3副本3C5D集群，配置参数以ip74为例：
liuzhen@fit-74:/data/mpp_test/t_rc4_0516_a8387f1$ conf/confignode-env.sh
MAX_HEAP_SIZE="8G"
liuzhen@fit-74:/data/mpp_test/t_rc4_0516_a8387f1$
conf/iotdb-confignode.properties
cn_internal_address=192.168.10.74
cn_target_config_node_list=192.168.10.72:10710
cn_connection_timeout_ms=120000
cn_metric_reporter_list=PROMETHEUS
cn_metric_level=IMPORTANT
cn_metric_prometheus_reporter_port=9081
liuzhen@fit-74:/data/mpp_test/t_rc4_0516_a8387f1$ conf/datanode-env.sh
MAX_HEAP_SIZE="256G"
MAX_DIRECT_MEMORY_SIZE="32G"
liuzhen@fit-74:/data/mpp_test/t_rc4_0516_a8387f1$ conf/iotdb-datanode.properties
dn_rpc_address=192.168.10.74
dn_internal_address=192.168.10.74
dn_target_config_node_list=192.168.10.72:10710,192.168.10.73:10710,192.168.10.74:10710
dn_connection_timeout_ms=120000
dn_metric_reporter_list=PROMETHEUS
dn_metric_level=IMPORTANT
liuzhen@fit-74:/data/mpp_test/t_rc4_0516_a8387f1$ conf/iotdb-common.properties
schema_replication_factor=3
data_replication_factor=3
series_slot_num=1000
schema_region_group_extension_policy=CUSTOM
default_schema_region_group_num_per_database=10
data_region_group_extension_policy=CUSTOM
default_data_region_group_num_per_database=20
disk_space_warning_threshold=0.01
query_timeout_threshold=36000000
iot_consensus_throttle_threshold_in_byte=536870912000
*2. 启动benchmark 读写，配置文件见附件 0517_rc4_lt.conf*
*3.启动TTL 脚本，配置文件见附件set_ttl.sh*
{*}每48小时{*}，先把集群置为READONLY, 再设置TTL 删除所有的tsfile（没flush，没封口的tsfile不删除），unset ttl
，设置集群为RUNNING。（{*}这期间benchmark客户端读写操作不停{*}）
!image-2023-05-25-15-07-11-025.png!
*4.{color:#de350b}运行4 day，出现死锁，数据写入不进去。{color}*
监控看到的write point per second 为0
!image-2023-05-25-15-02-55-676.png!
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h4. Bug 现象
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TTL 和 合并并发产生死锁
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h4. 预期结果
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无死锁
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