Unable to connect to influxdb

We have installed TICK stack on a computer in which TICK stack with the following spec
RAM :- 32GiB
cores : -4
Processor :- Intel® Core™ i5-6500 CPU @ 3.20GHz

Influx was working fine till we attempted to push data in to it @ 100000 records per sec via HTTP REST API. When we tried that influxdb froze and the write operation began to fail . When we tried running the command influx , we got the error message

Failed to connect to getsockopt: connection refused
Please check your connection settings and ensure ‘influxd’ is running.

Running the command sudo service influxd status

gives the following result

influxdb.service - InfluxDB is an open-source, distributed, time series database
Loaded: loaded (/lib/systemd/system/influxdb.service; enabled; vendor preset: enabled)
Active: active (running) since Wed 2017-07-26 03:23:37 PDT; 9min ago
Main PID: 17679 (influxd)
CGroup: /system.slice/influxdb.service
└─17679 /usr/bin/influxd -config /etc/influxdb/influxdb.conf

Jul 26 03:32:31 LINUX02 influxd[17679]: [I] 2017-07-26T10:32:31Z failed to store statistics: [shard 97] open /var/lib/influxdb/wal/_internal/monitor/97/_0000
Jul 26 03:32:38 LINUX02 influxd[17679]: [I] 2017-07-26T10:32:38Z Error collecting shard size: open /var/lib/influxdb/wal/_internal/monitor/96: permission den
Jul 26 03:32:40 LINUX02 influxd[17679]: [I] 2017-07-26T10:32:40Z Post http://localhost:9092/write?consistency=&db=_internal&precision=ns&rp=monitor: dial tcp
Jul 26 03:32:40 LINUX02 influxd[17679]: [I] 2017-07-26T10:32:40Z /var/lib/influxdb/data/_internal/monitor/97/000000001-000000001.tsm (#0) opened in 194.895µs
Jul 26 03:32:40 LINUX02 influxd[17679]: [I] 2017-07-26T10:32:40Z reading file /var/lib/influxdb/wal/_internal/monitor/97/_00005.wal, size 10489431 engine=tsm
Jul 26 03:32:40 LINUX02 influxd[17679]: [I] 2017-07-26T10:32:40Z reading file /var/lib/influxdb/wal/_internal/monitor/97/_00006.wal, size 10496142 engine=tsm
Jul 26 03:32:40 LINUX02 influxd[17679]: [I] 2017-07-26T10:32:40Z reading file /var/lib/influxdb/wal/_internal/monitor/97/_00007.wal, size 6616061 engine=tsm1
Jul 26 03:32:41 LINUX02 influxd[17679]: [I] 2017-07-26T10:32:41Z reading file /var/lib/influxdb/wal/_internal/monitor/97/_00008.wal, size 827479 engine=tsm1
Jul 26 03:32:41 LINUX02 influxd[17679]: [I] 2017-07-26T10:32:41Z write failed for shard 97: [shard 97] open /var/lib/influxdb/wal/_internal/monitor/97/_00009
Jul 26 03:32:41 LINUX02 influxd[17679]: [I] 2017-07-26T10:32:41Z failed to store statistics: [shard 97] open /var/lib/influxdb/wal/_internal/monitor/97/_0000

We are stuck , any help ia appreciated