2.6.0版本 memtier_benchmark 压测 纯set，内存无限制增长

[wanjianjun123]

2.6.0版本，用memtier_benchmark压测set，tendis进程的占用内存在无限制的上涨

压测命令： memtier_benchmark -t 20 -c 50 -s xx.xx.xx.xx -p 3901 -a 123456 --distinct-client-seed --command="set __key__ __data__" --key-prefix="kv_" --key-minimum=1 --key-maximum=50000000 --random-data --data-size=128 --test-time=1800

配置文件：``` bind xx.xx.xx.xx port 3901

pidfile /data/tendis/test-tendis1/tmp/tendisplus.pid logdir /data/tendis/test-tendis1/log dir /data/tendis/test-tendis1/db dumpdir /data/tendis/test-tendis1/dump slowlog /data/tendis/test-tendis1/slowlog/slowlog

requirepass 123456 masterauth 123456

daemon no loglevel notice cluster-enabled 0 storage rocks maxclients 200000 jeprof-auto-dump 0 checkkeytypeforsetcmd no

slowlog-file-enabled 1 slowlog-log-slower-than 100000

minBinlogKeepSec 3600 truncateBinlogIntervalMs 1000 truncateBinlogNum 5000000 binlogDelRange 500000

noexpire false

netiothreadnum 32 executorWorkPoolSize 8 executorthreadnum 64 incrPushThreadnum 25 fullPushThreadnum 8 fullReceiveThreadnum 4 logRecycleThreadnum 4

binlogRateLimitMB 64

kvstorecount 50 rocks.blockcachemb 98304 rocks.blockcache_strict_capacity_limit 0 rocks.cache_index_and_filter_blocks 1 rocks.max_open_files -1

rocks.flush_log_at_trx_commit 0 rocks.compress_type lz4 rocks.level_compaction_dynamic_level_bytes 1 rocks.target_file_size_base 67108864 rocks.max_bytes_for_level_base 536870912 rocks.write_buffer_size 67108864 rocks.max_write_buffer_number 256 rocks.min_write_buffer_number_to_merge 2 rocks.max_background_jobs 64 rocks.max_background_compactions 60 rocks.max_background_flushes 4 rocks.max_subcompactions 4 rocks.level0_file_num_compaction_trigger 8 rocks.level0_slowdown_writes_trigger 192 rocks.level0_stop_writes_trigger 256

cluster-migration-slots-num-per-task 100 cluster-migration-rate-limit 1000 cluster-migration-binlog-iters 20 cluster-migration-distance 10000 cluster-migration-timeout 10

cluster-node-timeout 15000 cluster-slave-validity-factor 10 cluster-require-full-coverage yes

cluster-slave-no-failover no

mapping-command dbsize emptyint mapping-command keys emptymultibulk rename-command flushdb flushdb_rename rename-command flushall flushall_rename rename-command flushalldisk flushalldisk_rename

[takenliu]

内存问题参考： http://tendis.cn/#/Tendisplus/知识库/FAQ Q: tendis的内存占用是多少