* REDIS-URL -> META-URL

* META-ADDR -> META-URL

* cache attribute and chunks for open files

* add mising file

* fix build

* bugfix

* add options

* update docs in CN

* fix build

* fix build sdk

* fix opencache

* bugfix

* speedup fs.Open()

* set KeepCache for cgofuse

* cleanup

* address comments

* address comments

* support read-only mode

* fix build and update docs

* fix json tag

* meta: rename info version to redisVersion

* add client information for each session

* cmd: add `sessions` subcommand to list all client sessions

* meta/sql: sync session table when creating sessions to add 'info' column

* cmd/sessions: add --detail option to show sustained inode and locks related to each session

* cmd: remove `sessions` subcommand, and add its functions to `status`

* cmd/status: remove --detail flag, instead only show detailed information if sid is specified

* cmd/status: add -f/--format to specify format of output

* cmd/status: use only json format for now

* cmd/status: rename print to printJson

* invalidate read buffer after truncate

* no accesslog for truncate (included in setattr)

* use sql database as meta store

* pass simple tests

* use bytes for chunks

* use bytes for chunks

* cleanup trasaction

* cleanup

* add unit test for SQL

* cleanup

* cleanup

* fix build

* use db as meta store

* fix contention

* fix truncate and compaction

* fix contension on counter

* generate id in batch

* fix build

* fix test

* fix flaky test

* support mysql

* fix ci

* fix flaky test

* test with sqlite3

* update column as notnull

* remove passwd

* update metrics

* fix nextInode and deleted files

* push metrics to prometheous gateway from Java SDK

* add logging for failed push

* fix metrics

* remove print

* add license header

* add docs

* Add option to turn off debug agent

* enable debug agent for all commands

* Update gc.go

Closes #246

* check existence of blocks

* fix size of last block

* add gc and fsck into travis

* update tests

* update license header

* use file in tests

* umount force

* disable check for PEM

* fix travis

* fix travis

* use fusermount to unmount on linux

* fallback to umount when fusermount doesnot exist: go-fuse direct mount doesnot rely on fusermount

* add vol_name and mp labels for metrics

* apply gofmt

* move wrap prior to objects.WithMetrics()

* prepare for windows

* build for windows

* build for windows

* git diff

* remove libfuse-dev

* cleanup

* build juicefs.exe in Linux

* make with sudo

* fix travis

* fix travis

* add license header

* size of dir

* no syslog and run-in-background in windows

* fix compatibility with windows 10

* graceful umount

* fix build in Windows

* Add cache management doc

* Update

* Update

* Update

* WIP: S3 gateway

* upgrade minio

* build gateway

* use CopyFileRange to speedup Copy and MultipartUpload

* add subcommand

* fix errno handling

* MinIO require Go 1.14+

* fix lint

* rollback change in travis

* fix lint

* Export metrics to Prometheus

* ignore error

* listen in background

* add metrics for request to object store

* metrics for open files/dirs

* fix lint

* ignore error

* ignore error

* add doc for public interface

* ignore error

* ignore error

* cleanup

* remove unused field

* fix flaky test

* fix lint errors

* fix lint errors

* fix lint errors

* fix lint errors

* fix bug

* Update command reference doc

* Hard line break

* wait for mount point to be ready

* update tests

* change to use lower case for command line options

* cleanup options

* Optimized logging level by default only logging to syslog in daemon mode

* Fix review comments