High CPU load from influxdb process

Hi,
since some days I have a high cpu load frim influxdb:

Tasks:  21 total,   3 running,  18 sleeping,   0 stopped,   0 zombie

%Cpu(s): 26.8 us, 0.0 sy, 0.0 ni, 73.2 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 1048576 total, 202752 free, 212504 used, 633320 buff/cache
KiB Swap: 0 total, 0 free, 0 used. 836072 avail Mem

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
9635 influxdb 20 0 525820 31820 21856 R 203.7 3.0 0:07.60 influxd
9649 root 20 0 110180 42192 6152 S 10.7 4.0 0:00.32 /usr/libexec/we
9664 root 20 0 75088 9704 8724 R 1.3 0.9 0:00.04 rpm
7205 root 25 5 986300 100964 12908 S 1.0 9.6 0:15.28 node-red

the logfile shows:
€‹Jan 7 08:53:59 172 Node-RED: 7 Jan 08:53:59 - [error] [influxdb out:5ef5f2af.9703ec] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:16386d80.4ef0c3] Error: No host available
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:8a28cbe4.8827a8] Error: No host available
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:1742ae74.816d3a] Error: No host available
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:333c274d.4d2c8] Error: No host available
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:9f263fd.5eace4] Error: No host available
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:295c7bbd.54ff54] Error: No host available
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:e48015.88537fe8] Error: No host available
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:4282aa76.dec9bc] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:6fd9f01e.c16da] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:b98fb5f9.6c74b] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:130918f0.9d723f] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:ae66d27d.897ab] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:ae66d27d.897ab] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:79982161.87ec38] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:eb086105.3267b8] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:de243065.e559a] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:8c2f7194.9a457] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:e292459c.34cb08] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:ff41c5aa.31bed8] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:645ae1a0.da28e] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:a0b55807.f03488] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:fe312694.50704] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:fa3f580c.479d6] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:3e4ec263.a6813e] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:5df9a02e.ad42e8] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:00 172 Node-RED: 7 Jan 08:54:00 - [error] [influxdb out:30abbc29.7b0854] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:01 172 influxd: ts=2020-01-07T07:54:01.705296Z lvl=info msg=“InfluxDB starting” log_id=0KBkmlQG000 version=1.7.9 branch=1.7 commit=23bc63d43a8dc05f53afa46e3526ebb5578f3d88
Jan 7 08:54:01 172 influxd: ts=2020-01-07T07:54:01.705323Z lvl=info msg=“Go runtime” log_id=0KBkmlQG000 version=go1.12.6 maxprocs=8
Jan 7 08:54:01 172 influxd: ts=2020-01-07T07:54:01.808371Z lvl=info msg=“Using data dir” log_id=0KBkmlQG000 service=store path=/var/lib/influxdb/data
Jan 7 08:54:01 172 influxd: ts=2020-01-07T07:54:01.808401Z lvl=info msg=“Compaction settings” log_id=0KBkmlQG000 service=store max_concurrent_compactions=4 throughput_bytes_per_second=50331648 throughput_bytes_per_second_burst=50331648
Jan 7 08:54:01 172 influxd: ts=2020-01-07T07:54:01.808415Z lvl=info msg=“Open store (start)” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open op_event=start
Jan 7 08:54:01 172 influxd: ts=2020-01-07T07:54:01.814071Z lvl=info msg=“Reading file” log_id=0KBkmlQG000 engine=tsm1 service=cacheloader path=/var/lib/influxdb/wal/Galvanik/autogen/144/_00001.wal size=418950
Jan 7 08:54:01 172 influxd: ts=2020-01-07T07:54:01.816888Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Galvanik/autogen/133/000000005-000000002.tsm id=0 duration=0.167ms
Jan 7 08:54:01 172 influxd: ts=2020-01-07T07:54:01.817064Z lvl=info msg=“Reading file” log_id=0KBkmlQG000 engine=tsm1 service=cacheloader path=/var/lib/influxdb/wal/Galvanik/autogen/133/_00001.wal size=6880014
Jan 7 08:54:01 172 influxd: ts=2020-01-07T07:54:01.817987Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Galvanik/autogen/122/000000001-000000001.tsm id=0 duration=0.169ms
Jan 7 08:54:01 172 influxd: ts=2020-01-07T07:54:01.819549Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Galvanik/autogen/100/000000001-000000001.tsm id=0 duration=0.096ms
Jan 7 08:54:01 172 influxd: ts=2020-01-07T07:54:01.821255Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Galvanik/autogen/19/000000001-000000001.tsm id=0 duration=0.108ms
Jan 7 08:54:01 172 influxd: ts=2020-01-07T07:54:01.822901Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Galvanik/autogen/32/000000001-000000001.tsm id=0 duration=0.101ms
Jan 7 08:54:01 172 influxd: ts=2020-01-07T07:54:01.824681Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Galvanik/autogen/56/000000001-000000001.tsm id=0 duration=0.107ms
Jan 7 08:54:01 172 influxd: ts=2020-01-07T07:54:01.826336Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Galvanik/autogen/111/000000001-000000001.tsm id=0 duration=0.107ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.194380Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Galvanik/autogen/56 duration=382.832ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.194459Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Galvanik/autogen/122 duration=382.992ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.194479Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Galvanik/autogen/19 duration=383.036ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.194516Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Galvanik/autogen/111 duration=382.712ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.194462Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Galvanik/autogen/100 duration=382.666ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.194469Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Galvanik/autogen/32 duration=382.666ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.215326Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Galvanik/autogen/67/000000001-000000001.tsm id=0 duration=0.102ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.219304Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Galvanik/autogen/78/000000001-000000001.tsm id=0 duration=0.087ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.243371Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Galvanik/autogen/89/000000001-000000001.tsm id=0 duration=22.348ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.243372Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Kuehlsystem/autogen/109/000000001-000000001.tsm id=0 duration=22.307ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.243416Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Kuehlsystem/autogen/43/000000001-000000001.tsm id=0 duration=19.331ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.286291Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Galvanik/autogen/45/000000001-000000001.tsm id=0 duration=73.473ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.288893Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Galvanik/autogen/144 duration=477.388ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.375221Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Kuehlsystem/autogen/120/000000001-000000001.tsm id=0 duration=48.153ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.524350Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Galvanik/autogen/67 duration=329.847ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.561580Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Kuehlsystem/autogen/15/000000001-000000001.tsm id=0 duration=0.090ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.601092Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Kuehlsystem/autogen/109 duration=406.300ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.601171Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Kuehlsystem/autogen/43 duration=406.327ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.601196Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Galvanik/autogen/89 duration=406.626ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.601217Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Galvanik/autogen/45 duration=406.768ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.601186Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Galvanik/autogen/78 duration=406.664ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.611980Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Kuehlsystem/autogen/76/000000001-000000001.tsm id=0 duration=0.091ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.618261Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Kuehlsystem/autogen/30/000000001-000000001.tsm id=0 duration=0.083ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.620131Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Kuehlsystem/autogen/54/000000001-000000001.tsm id=0 duration=0.085ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.621901Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Kuehlsystem/autogen/65/000000001-000000001.tsm id=0 duration=0.085ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.739012Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Kuehlsystem/autogen/131/000000003-000000001.tsm id=1 duration=124.602ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.739422Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Kuehlsystem/autogen/131/000000001-000000001.tsm id=0 duration=125.017ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.739443Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Kuehlsystem/autogen/131/000000005-000000001.tsm id=2 duration=125.062ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.739625Z lvl=info msg=“Reading file” log_id=0KBkmlQG000 engine=tsm1 service=cacheloader path=/var/lib/influxdb/wal/Kuehlsystem/autogen/131/_00004.wal size=38906417
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.740015Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Kuehlsystem/autogen/120 duration=451.068ms
Jan 7 08:54:02 172 influxd: ts=2020-01-07T07:54:02.838319Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Kuehlsystem/autogen/8/000000001-000000001.tsm id=0 duration=0.106ms
Jan 7 08:54:03 172 influxd: ts=2020-01-07T07:54:03.100793Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Kuehlsystem/autogen/15 duration=576.376ms
Jan 7 08:54:03 172 influxd: ts=2020-01-07T07:54:03.165735Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Kuehlsystem/autogen/87/000000001-000000001.tsm id=0 duration=50.402ms
Jan 7 08:54:03 172 influxd: ts=2020-01-07T07:54:03.187931Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Kuehlsystem/autogen/54 duration=586.675ms
Jan 7 08:54:03 172 influxd: ts=2020-01-07T07:54:03.188001Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Kuehlsystem/autogen/76 duration=586.757ms
Jan 7 08:54:03 172 influxd: ts=2020-01-07T07:54:03.188057Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Kuehlsystem/autogen/65 duration=586.782ms
Jan 7 08:54:03 172 influxd: ts=2020-01-07T07:54:03.188052Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Kuehlsystem/autogen/30 duration=586.879ms
Jan 7 08:54:03 172 influxd: ts=2020-01-07T07:54:03.227538Z lvl=info msg=“Reading file” log_id=0KBkmlQG000 engine=tsm1 service=cacheloader path=/var/lib/influxdb/wal/Kuehlsystem/autogen/142/_00001.wal size=4268400
Jan 7 08:54:03 172 influxd: ts=2020-01-07T07:54:03.307013Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Kuehlsystem/autogen/98/000000001-000000001.tsm id=0 duration=98.042ms
Jan 7 08:54:03 172 influxd: ts=2020-01-07T07:54:03.357098Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Galvanik/autogen/133 duration=1545.621ms
Jan 7 08:54:03 172 influxd: ts=2020-01-07T07:54:03.357145Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Kuehlsystem/autogen/8 duration=617.100ms
Jan 7 08:54:03 172 influxd: ts=2020-01-07T07:54:03.382647Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Pressen/autogen/44/000000006-000000002.tsm id=0 duration=150.858ms
Jan 7 08:54:03 172 influxd: ts=2020-01-07T07:54:03.410808Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Pressen/autogen/17/000000005-000000002.tsm id=0 duration=177.305ms
Jan 7 08:54:03 172 influxd: ts=2020-01-07T07:54:03.500141Z lvl=info msg=“Reading file” log_id=0KBkmlQG000 engine=tsm1 service=cacheloader path=/var/lib/influxdb/wal/Pressen/autogen/143/_00001.wal size=2401596
Jan 7 08:54:03 172 influxd: ts=2020-01-07T07:54:03.610245Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Pressen/autogen/31/000000003-000000002.tsm id=0 duration=146.592ms
Jan 7 08:54:04 172 influxd: ts=2020-01-07T07:54:04.177229Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Kuehlsystem/autogen/87 duration=1076.367ms
Jan 7 08:54:04 172 influxd: ts=2020-01-07T07:54:04.368524Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Pressen/autogen/110/000000008-000000002.tsm id=0 duration=147.027ms
Jan 7 08:54:04 172 influxd: ts=2020-01-07T07:54:04.541072Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Kuehlsystem/autogen/98 duration=1353.033ms
Jan 7 08:54:04 172 influxd: ts=2020-01-07T07:54:04.541146Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Pressen/autogen/44 duration=1353.027ms
Jan 7 08:54:04 172 influxd: ts=2020-01-07T07:54:04.641402Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Pressen/autogen/77/000000006-000000002.tsm id=0 duration=80.296ms
Jan 7 08:54:04 172 influxd: ts=2020-01-07T07:54:04.644417Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Pressen/autogen/31 duration=1287.267ms
Jan 7 08:54:04 172 influxd: ts=2020-01-07T07:54:04.644529Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Pressen/autogen/17 duration=1456.386ms
Jan 7 08:54:04 172 influxd: ts=2020-01-07T07:54:04.673768Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Pressen/autogen/55/000000005-000000002.tsm id=0 duration=91.815ms
Jan 7 08:54:04 172 influxd: ts=2020-01-07T07:54:04.791352Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Pressen/autogen/88/000000008-000000002.tsm id=0 duration=83.675ms
Jan 7 08:54:04 172 influxd: ts=2020-01-07T07:54:04.794311Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Pressen/autogen/99/000000006-000000002.tsm id=0 duration=106.687ms
Jan 7 08:54:04 172 influxd: ts=2020-01-07T07:54:04.899216Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Pressen/autogen/110 duration=721.908ms
Jan 7 08:54:04 172 influxd: ts=2020-01-07T07:54:04.899307Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Pressen/autogen/143 duration=1542.117ms
Jan 7 08:54:04 172 influxd: ts=2020-01-07T07:54:04.995719Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/Pressen/autogen/66/000000004-000000002.tsm id=0 duration=73.657ms
Jan 7 08:54:05 172 influxd: ts=2020-01-07T07:54:05.023343Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Kuehlsystem/autogen/142 duration=1835.338ms
Jan 7 08:54:05 172 influxd: ts=2020-01-07T07:54:05.023700Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/UVR-Home/autogen/123/000000001-000000001.tsm id=0 duration=99.469ms
Jan 7 08:54:05 172 influxd: ts=2020-01-07T07:54:05.128032Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/UVR-Home/autogen/112/000000001-000000001.tsm id=0 duration=62.877ms
Jan 7 08:54:05 172 influxd: ts=2020-01-07T07:54:05.131432Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Pressen/autogen/77 duration=590.244ms
Jan 7 08:54:05 172 influxd: ts=2020-01-07T07:54:05.221599Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/UVR-Home/autogen/35/000000001-000000001.tsm id=0 duration=56.870ms
Jan 7 08:54:05 172 influxd: ts=2020-01-07T07:54:05.245577Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Pressen/autogen/55 duration=704.452ms
Jan 7 08:54:05 172 influxd: ts=2020-01-07T07:54:05.326906Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/UVR-Home/autogen/134/000000005-000000002.tsm id=0 duration=58.776ms
Jan 7 08:54:05 172 influxd: ts=2020-01-07T07:54:05.327129Z lvl=info msg=“Reading file” log_id=0KBkmlQG000 engine=tsm1 service=cacheloader path=/var/lib/influxdb/wal/UVR-Home/autogen/134/_00001.wal size=14945877
Jan 7 08:54:05 172 influxd: ts=2020-01-07T07:54:05.330075Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Pressen/autogen/88 duration=685.494ms
Jan 7 08:54:05 172 influxd: ts=2020-01-07T07:54:05.330143Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Pressen/autogen/99 duration=685.686ms
Jan 7 08:54:05 172 influxd: ts=2020-01-07T07:54:05.365286Z lvl=info msg=“Reading file” log_id=0KBkmlQG000 engine=tsm1 service=cacheloader path=/var/lib/influxdb/wal/UVR-Home/autogen/145/_00001.wal size=905849
Jan 7 08:54:05 172 influxd: ts=2020-01-07T07:54:05.488979Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/UVR-Home/autogen/57/000000001-000000001.tsm id=0 duration=126.272ms
Jan 7 08:54:05 172 influxd: ts=2020-01-07T07:54:05.847083Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/Pressen/autogen/66 duration=947.792ms
Jan 7 08:54:05 172 influxd: ts=2020-01-07T07:54:05.973620Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/UVR-Home/autogen/68/000000001-000000001.tsm id=0 duration=106.908ms
Jan 7 08:54:06 172 influxd: ts=2020-01-07T07:54:06.001969Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/UVR-Home/autogen/112 duration=978.555ms
Jan 7 08:54:06 172 influxd: ts=2020-01-07T07:54:06.002046Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/UVR-Home/autogen/123 duration=1102.703ms
Jan 7 08:54:06 172 influxd: ts=2020-01-07T07:54:06.167179Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/UVR-Home/autogen/90/000000001-000000001.tsm id=0 duration=116.258ms
Jan 7 08:54:06 172 influxd: ts=2020-01-07T07:54:06.203916Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/UVR-Home/autogen/79/000000001-000000001.tsm id=0 duration=151.147ms
Jan 7 08:54:06 172 influxd: ts=2020-01-07T07:54:06.206972Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/UVR-Home/autogen/35 duration=1075.501ms
Jan 7 08:54:06 172 influxd: ts=2020-01-07T07:54:06.381173Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/UVR-Home/autogen/46/000000001-000000001.tsm id=0 duration=116.117ms
Jan 7 08:54:06 172 influxd: ts=2020-01-07T07:54:06.546726Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/UVR-Home/autogen/57 duration=1216.553ms
Jan 7 08:54:06 172 influxd: ts=2020-01-07T07:54:06.696139Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/UVR-Home/autogen/101/000000001-000000001.tsm id=0 duration=126.027ms
Jan 7 08:54:06 172 influxd: ts=2020-01-07T07:54:06.702778Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/UVR-Home/autogen/145 duration=1372.661ms
Jan 7 08:54:06 172 influxd: ts=2020-01-07T07:54:06.810951Z lvl=info msg=“Reading file” log_id=0KBkmlQG000 engine=tsm1 service=cacheloader path=/var/lib/influxdb/wal/_internal/monitor/146/_00001.wal size=253146
Jan 7 08:54:06 172 influxd: ts=2020-01-07T07:54:06.875215Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/UVR-Home/autogen/68 duration=1028.070ms
Jan 7 08:54:07 172 influxd: ts=2020-01-07T07:54:07.111387Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/UVR-Home/autogen/90 duration=1109.298ms
Jan 7 08:54:07 172 influxd: ts=2020-01-07T07:54:07.111471Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/UVR-Home/autogen/79 duration=1109.438ms
Jan 7 08:54:07 172 influxd: ts=2020-01-07T07:54:07.397592Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/UVR-Home/autogen/46 duration=1190.561ms
Jan 7 08:54:07 172 influxd: ts=2020-01-07T07:54:07.554337Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/_internal/monitor/130/000000015-000000002.tsm id=0 duration=608.798ms
Jan 7 08:54:07 172 influxd: ts=2020-01-07T07:54:07.972999Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/_internal/monitor/136/000000015-000000002.tsm id=0 duration=730.355ms
Jan 7 08:54:07 172 influxd: ts=2020-01-07T07:54:07.988344Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/_internal/monitor/135/000000015-000000002.tsm id=0 duration=749.349ms
Jan 7 08:54:08 172 influxd: ts=2020-01-07T07:54:08.149585Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/UVR-Home/autogen/101 duration=1602.779ms
Jan 7 08:54:08 172 influxd: ts=2020-01-07T07:54:08.365644Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/_internal/monitor/137/000000017-000000002.tsm id=0 duration=769.620ms
Jan 7 08:54:08 172 influxd: ts=2020-01-07T07:54:08.425293Z lvl=info msg=“Opened shard” log_id=0KBkmlQG000 service=store trace_id=0KBkmlp0000 op_name=tsdb_open index_version=inmem path=/var/lib/influxdb/data/_internal/monitor/146 duration=1722.465ms
Jan 7 08:54:08 172 Node-RED: 7 Jan 08:54:08 - [error] [influxdb out:1de765f5.83957a] Error: connect ECONNREFUSED 127.0.0.1:8086
Jan 7 08:54:08 172 influxd: ts=2020-01-07T07:54:08.802880Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/_internal/monitor/138/000000017-000000002.tsm id=0 duration=590.390ms
Jan 7 08:54:09 172 influxd: ts=2020-01-07T07:54:09.098081Z lvl=info msg=“Opened file” log_id=0KBkmlQG000 engine=tsm1 service=filestore path=/var/lib/influxdb/data/_internal/monitor/139/000000018-000000002.tsm id=0 duration=523.780ms

So you can see, influxdb restarts themself.Influxdb version is 1.7.9

What can I do?
Thanks, Frank