* listing files to convert to parquet
* write parquet files
* save logs into parquet files
* pass by value
* compact logs into parquet format
* can skip existing files
* refactor
* refactor
* fix compilation
* when no partition found
* refactor
* add untested parquet file read
* rename package
* refactor
* rename files
* remove unused
* add merged log read func
* parquet wants to know the file size
* rewind by time
* pass in stop ts
* add stop ts
* adjust log
* minor
* adjust log
* skip .parquet files when reading message logs
* skip non message files
* Update subscriber_record.go
* send messages
* skip message data with only ts
* skip non log files
* update parquet-go package
* ensure a valid record type
* add new field to a record type
* Update read_parquet_to_log.go
* fix parquet file name generation
* separating reading parquet and logs
* add key field
* add skipped logs
* use in memory cache
* refactor
* refactor
* refactor
* refactor, and change compact log
* refactor
* rename
* refactor
* fix format
* prefix v to version directory
* Added context for the MasterClient's methods to avoid endless loops
* Returned WithClient function. Added WithClientCustomGetMaster function
* Hid unused ctx arguments
* Using a common context for the KeepConnectedToMaster and WaitUntilConnected functions
* Changed the context termination check in the tryConnectToMaster function
* Added a child context to the tryConnectToMaster function
* Added a common context for KeepConnectedToMaster and WaitUntilConnected functions in benchmark
* remove old raft servers if they don't answer to pings for too long
add ping durations as options
rename ping fields
fix some todos
get masters through masterclient
raft remove server from leader
use raft servers to ping them
CheckMastersAlive for hashicorp raft only
* prepare blocking ping
* pass waitForReady as param
* pass waitForReady through all functions
* waitForReady works
* refactor
* remove unneeded params
* rollback unneeded changes
* fix
The volume TTL and file TTL are not necessarily the same. as long as
file TTL is smaller than volume TTL, it'll be fine.
volume TTL is used when assigning file id, e.g.
http://.../dir/assign?ttl=3h
file TTL is used when uploading