broker recovery after crash

[2018-01-05 13:43:25,722] WARN Found a corrupted index file due to requirement failed: Corrupt index found, index file (/data/kafka/api-input-35/00000000000024982392.index) has non-zero size but the last offset is 24982392 which is no larger than the base offset 24982392.}. deleting /data/kafka/api-input-35/00000000000024982392.timeindex, /data/kafka/api-input-35/00000000000024982392.index, and /data/kafka/api-input-35/00000000000024982392.txnindex and rebuilding index... (kafka.log.Log)
[2018-01-05 13:43:25,834] INFO Loading producer state from offset 2 for partition api-error-16 with message format version 0 (kafka.log.Log)
[2018-01-05 13:43:25,841] INFO Completed load of log api-error-16 with 1 log segments, log start offset 2 and log end offset 2 in 623 ms (kafka.log.Log)
[2018-01-05 13:43:25,850] DEBUG Loading log 'api-input-10' (kafka.log.LogManager)
[2018-01-05 13:43:25,901] WARN Found a corrupted index file due to requirement failed: Corrupt index found, index file (/data/kafka/api-event-24/00000000000313497830.index) has non-zero size but the last offset is 313497830 which is no larger than the base offset 313497830.}. deleting /data/kafka/notification-24/00000000000313497830.timeindex, /data/kafka/api-event-24/00000000000313497830.index, and /data/kafka/api-event-24/00000000000313497830.txnindex and rebuilding index... (kafka.log.Log)
[2018-01-05 13:43:26,863] WARN Found a corrupted index file due to requirement failed: Corrupt index found, index file (/data/kafka/api-input-10/00000000000025324172.index) has non-zero size but the last offset is 25324172 which is no larger than the base offset 25324172.}. deleting /data/kafka/api-input-10/00000000000025324172.timeindex, /data/kafka/api-input-10/00000000000025324172.index, and /data/kafka/api-input-10/00000000000025324172.txnindex and rebuilding index... (kafka.log.Log)
[2018-01-05 13:43:26,973] WARN Found a corrupted index file due to requirement failed: Corrupt index found, index file (/data/kafka/data-processed-15/00000000000054942918.index) has non-zero size but the last offset is 54942918 which is no larger than the base offset 54942918.}. deleting /data/kafka/data-processed-15/00000000000054942918.timeindex, /data/kafka/data-processed-15/00000000000054942918.index, and /data/kafka/data-processed-15/00000000000054942918.txnindex and rebuilding index... (kafka.log.Log)
[2018-01-05 13:43:27,248] INFO Recovering unflushed segment 55355929 in log custom-data-change-27. (kafka.log.Log)
[2018-01-05 13:43:30,442] WARN Found a corrupted index file due to requirement failed: Corrupt index found, index file (/data/kafka/event-bulk-4/00000000000484315933.index) has non-zero size but the last offset is 484315933 which is no larger than the base offset 484315933.}. deleting /data/kafka/event-bulk-4/00000000000484315933.timeindex, /data/kafka/event-bulk-4/00000000000484315933.index, and /data/kafka/event-bulk-4/00000000000484315933.txnindex and rebuilding index... (kafka.log.Log)
[2018-01-05 13:43:34,142] INFO Loading producer state from offset 1236587 for partition webapi-event-1 with message format version 0 (kafka.log.Log)
[2018-01-05 13:43:34,144] INFO Loading producer state from snapshot file '/data/kafka/webapi-event-1/00000000000001176203.snapshot' for partition webapi-event-1 (kafka.log.ProducerStateManager)
[2018-01-05 13:43:34,144] INFO Loading producer state from snapshot file '/data/kafka/webapi-event-1/00000000000001176203.snapshot' for partition webapi-event-1 (kafka.log.ProducerStateManager)
[2018-01-05 13:43:34,776] INFO Completed load of log webapi-event-1 with 2 log segments, log start offset 1068104 and log end offset 1236587 in 9547 ms (kafka.log.Log)