mirror of
https://github.com/fluencelabs/redis
synced 2025-03-18 08:30:51 +00:00
Cluster: cluster stuff moved from redis.h to cluster.h.
This commit is contained in:
antirez
parent
6fa9b1a420
commit
929b6a4480
134
src/Makefile.dep
134
src/Makefile.dep
@ -6,112 +6,114 @@ ae_kqueue.o: ae_kqueue.c
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ae_select.o: ae_select.c
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anet.o: anet.c fmacros.h anet.h
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aof.o: aof.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h bio.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h bio.h
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bio.o: bio.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h bio.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h bio.h
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bitops.o: bitops.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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cluster.o: cluster.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h endianconv.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h cluster.h endianconv.h
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config.o: config.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h cluster.h
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crc16.o: crc16.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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crc64.o: crc64.c
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db.o: db.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h cluster.h
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debug.o: debug.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h sha1.h crc64.h bio.h
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dict.o: dict.c fmacros.h dict.h zmalloc.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h sha1.h crc64.h bio.h
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dict.o: dict.c fmacros.h dict.h zmalloc.h redisassert.h
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endianconv.o: endianconv.c
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intset.o: intset.c intset.h zmalloc.h endianconv.h config.h
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lzf_c.o: lzf_c.c lzfP.h
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lzf_d.o: lzf_d.c lzfP.h
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memtest.o: memtest.c config.h
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multi.o: multi.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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networking.o: networking.c redis.h fmacros.h config.h \
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../deps/lua/src/lua.h ../deps/lua/src/luaconf.h ae.h sds.h dict.h \
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adlist.h zmalloc.h anet.h ziplist.h intset.h version.h util.h rdb.h \
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rio.h
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../deps/lua/src/lua.h ../deps/lua/src/luaconf.h ae.h sds.h dict.h \
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adlist.h zmalloc.h anet.h ziplist.h intset.h version.h util.h rdb.h \
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rio.h
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notify.o: notify.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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object.o: object.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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pqsort.o: pqsort.c
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pubsub.o: pubsub.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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rand.o: rand.c
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rdb.o: rdb.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h lzf.h zipmap.h \
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endianconv.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h lzf.h zipmap.h \
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endianconv.h
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redis-benchmark.o: redis-benchmark.c fmacros.h ae.h \
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../deps/hiredis/hiredis.h sds.h adlist.h zmalloc.h
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../deps/hiredis/hiredis.h sds.h adlist.h zmalloc.h
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redis-check-aof.o: redis-check-aof.c fmacros.h config.h
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redis-check-dump.o: redis-check-dump.c lzf.h crc64.h
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redis-cli.o: redis-cli.c fmacros.h version.h ../deps/hiredis/hiredis.h \
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sds.h zmalloc.h ../deps/linenoise/linenoise.h help.h anet.h ae.h
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sds.h zmalloc.h ../deps/linenoise/linenoise.h help.h anet.h ae.h
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redis.o: redis.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h slowlog.h bio.h \
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asciilogo.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h cluster.h slowlog.h \
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bio.h asciilogo.h
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release.o: release.c release.h version.h crc64.h
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replication.o: replication.c redis.h fmacros.h config.h \
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../deps/lua/src/lua.h ../deps/lua/src/luaconf.h ae.h sds.h dict.h \
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adlist.h zmalloc.h anet.h ziplist.h intset.h version.h util.h rdb.h \
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rio.h
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rio.o: rio.c fmacros.h rio.h sds.h util.h crc64.h
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../deps/lua/src/lua.h ../deps/lua/src/luaconf.h ae.h sds.h dict.h \
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adlist.h zmalloc.h anet.h ziplist.h intset.h version.h util.h rdb.h \
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rio.h
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rio.o: rio.c fmacros.h rio.h sds.h util.h crc64.h config.h redis.h \
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../deps/lua/src/lua.h ../deps/lua/src/luaconf.h ae.h dict.h adlist.h \
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zmalloc.h anet.h ziplist.h intset.h version.h rdb.h
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scripting.o: scripting.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h sha1.h rand.h \
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../deps/lua/src/lauxlib.h ../deps/lua/src/lua.h \
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../deps/lua/src/lualib.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h sha1.h rand.h \
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../deps/lua/src/lauxlib.h ../deps/lua/src/lua.h ../deps/lua/src/lualib.h
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sds.o: sds.c sds.h zmalloc.h
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sentinel.o: sentinel.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h \
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../deps/hiredis/hiredis.h ../deps/hiredis/async.h \
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../deps/hiredis/hiredis.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h \
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../deps/hiredis/hiredis.h ../deps/hiredis/async.h \
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../deps/hiredis/hiredis.h
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setproctitle.o: setproctitle.c
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sha1.o: sha1.c sha1.h config.h
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slowlog.o: slowlog.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h slowlog.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h slowlog.h
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sort.o: sort.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h pqsort.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h pqsort.h
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syncio.o: syncio.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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t_hash.o: t_hash.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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t_list.o: t_list.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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t_set.o: t_set.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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t_string.o: t_string.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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t_zset.o: t_zset.c redis.h fmacros.h config.h ../deps/lua/src/lua.h \
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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util.o: util.c fmacros.h util.h
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ziplist.o: ziplist.c zmalloc.h util.h ziplist.h endianconv.h config.h
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../deps/lua/src/luaconf.h ae.h sds.h dict.h adlist.h zmalloc.h anet.h \
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ziplist.h intset.h version.h util.h rdb.h rio.h
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util.o: util.c fmacros.h util.h sds.h
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ziplist.o: ziplist.c zmalloc.h util.h sds.h ziplist.h endianconv.h \
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config.h redisassert.h
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zipmap.o: zipmap.c zmalloc.h endianconv.h config.h
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zmalloc.o: zmalloc.c config.h zmalloc.h
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@ -29,6 +29,7 @@
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*/
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#include "redis.h"
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#include "cluster.h"
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#include "endianconv.h"
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#include <sys/types.h>
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@ -38,6 +39,8 @@
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#include <unistd.h>
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#include <sys/socket.h>
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clusterNode *createClusterNode(char *nodename, int flags);
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int clusterAddNode(clusterNode *node);
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void clusterAcceptHandler(aeEventLoop *el, int fd, void *privdata, int mask);
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void clusterReadHandler(aeEventLoop *el, int fd, void *privdata, int mask);
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void clusterSendPing(clusterLink *link, int type);
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181
src/cluster.h
Normal file
181
src/cluster.h
Normal file
@ -0,0 +1,181 @@
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#ifndef __REDIS_CLUSTER_H
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#define __REDIS_CLUSTER_H
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/*-----------------------------------------------------------------------------
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* Redis cluster data structures, defines, exported API.
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*----------------------------------------------------------------------------*/
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#define REDIS_CLUSTER_SLOTS 16384
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#define REDIS_CLUSTER_OK 0 /* Everything looks ok */
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#define REDIS_CLUSTER_FAIL 1 /* The cluster can't work */
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#define REDIS_CLUSTER_NAMELEN 40 /* sha1 hex length */
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#define REDIS_CLUSTER_PORT_INCR 10000 /* Cluster port = baseport + PORT_INCR */
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#define REDIS_CLUSTER_IPLEN INET6_ADDRSTRLEN /* IPv6 address string length */
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/* The following defines are amunt of time, sometimes expressed as
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* multiplicators of the node timeout value (when ending with MULT). */
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#define REDIS_CLUSTER_DEFAULT_NODE_TIMEOUT 15
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#define REDIS_CLUSTER_FAIL_REPORT_VALIDITY_MULT 2 /* Fail report validity. */
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#define REDIS_CLUSTER_FAIL_UNDO_TIME_MULT 2 /* Undo fail if master is back. */
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#define REDIS_CLUSTER_FAIL_UNDO_TIME_ADD 10 /* Some additional time. */
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#define REDIS_CLUSTER_SLAVE_VALIDITY_MULT 10 /* Slave data validity. */
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#define REDIS_CLUSTER_FAILOVER_AUTH_RETRY_MULT 4 /* Auth request retry time. */
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#define REDIS_CLUSTER_FAILOVER_DELAY 5 /* Seconds */
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struct clusterNode;
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/* clusterLink encapsulates everything needed to talk with a remote node. */
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typedef struct clusterLink {
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time_t ctime; /* Link creation time */
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int fd; /* TCP socket file descriptor */
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sds sndbuf; /* Packet send buffer */
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sds rcvbuf; /* Packet reception buffer */
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struct clusterNode *node; /* Node related to this link if any, or NULL */
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} clusterLink;
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/* Node flags */
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#define REDIS_NODE_MASTER 1 /* The node is a master */
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#define REDIS_NODE_SLAVE 2 /* The node is a slave */
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#define REDIS_NODE_PFAIL 4 /* Failure? Need acknowledge */
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#define REDIS_NODE_FAIL 8 /* The node is believed to be malfunctioning */
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#define REDIS_NODE_MYSELF 16 /* This node is myself */
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#define REDIS_NODE_HANDSHAKE 32 /* We have still to exchange the first ping */
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#define REDIS_NODE_NOADDR 64 /* We don't know the address of this node */
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#define REDIS_NODE_MEET 128 /* Send a MEET message to this node */
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#define REDIS_NODE_PROMOTED 256 /* Master was a slave propoted by failover */
|
||||
#define REDIS_NODE_NULL_NAME "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
|
||||
|
||||
/* This structure represent elements of node->fail_reports. */
|
||||
struct clusterNodeFailReport {
|
||||
struct clusterNode *node; /* Node reporting the failure condition. */
|
||||
time_t time; /* Time of the last report from this node. */
|
||||
} typedef clusterNodeFailReport;
|
||||
|
||||
struct clusterNode {
|
||||
time_t ctime; /* Node object creation time. */
|
||||
char name[REDIS_CLUSTER_NAMELEN]; /* Node name, hex string, sha1-size */
|
||||
int flags; /* REDIS_NODE_... */
|
||||
uint64_t configEpoch; /* Last configEpoch observed for this node */
|
||||
unsigned char slots[REDIS_CLUSTER_SLOTS/8]; /* slots handled by this node */
|
||||
int numslots; /* Number of slots handled by this node */
|
||||
int numslaves; /* Number of slave nodes, if this is a master */
|
||||
struct clusterNode **slaves; /* pointers to slave nodes */
|
||||
struct clusterNode *slaveof; /* pointer to the master node */
|
||||
time_t ping_sent; /* Unix time we sent latest ping */
|
||||
time_t pong_received; /* Unix time we received the pong */
|
||||
time_t fail_time; /* Unix time when FAIL flag was set */
|
||||
time_t voted_time; /* Last time we voted for a slave of this master */
|
||||
char ip[REDIS_IP_STR_LEN]; /* Latest known IP address of this node */
|
||||
int port; /* Latest known port of this node */
|
||||
clusterLink *link; /* TCP/IP link with this node */
|
||||
list *fail_reports; /* List of nodes signaling this as failing */
|
||||
};
|
||||
typedef struct clusterNode clusterNode;
|
||||
|
||||
typedef struct clusterState {
|
||||
clusterNode *myself; /* This node */
|
||||
uint64_t currentEpoch;
|
||||
int state; /* REDIS_CLUSTER_OK, REDIS_CLUSTER_FAIL, ... */
|
||||
int size; /* Num of master nodes with at least one slot */
|
||||
dict *nodes; /* Hash table of name -> clusterNode structures */
|
||||
clusterNode *migrating_slots_to[REDIS_CLUSTER_SLOTS];
|
||||
clusterNode *importing_slots_from[REDIS_CLUSTER_SLOTS];
|
||||
clusterNode *slots[REDIS_CLUSTER_SLOTS];
|
||||
zskiplist *slots_to_keys;
|
||||
/* The following fields are used to take the slave state on elections. */
|
||||
mstime_t failover_auth_time;/* Time at which we'll try to get elected in ms*/
|
||||
int failover_auth_count; /* Number of votes received so far. */
|
||||
int failover_auth_sent; /* True if we already asked for votes. */
|
||||
uint64_t failover_auth_epoch; /* Epoch of the current election. */
|
||||
/* The followign fields are uesd by masters to take state on elections. */
|
||||
uint64_t last_vote_epoch; /* Epoch of the last vote granted. */
|
||||
int todo_before_sleep; /* Things to do in clusterBeforeSleep(). */
|
||||
long long stats_bus_messages_sent; /* Num of msg sent via cluster bus. */
|
||||
long long stats_bus_messages_received; /* Num of msg received via cluster bus. */
|
||||
} clusterState;
|
||||
|
||||
/* clusterState todo_before_sleep flags. */
|
||||
#define CLUSTER_TODO_HANDLE_FAILOVER (1<<0)
|
||||
#define CLUSTER_TODO_UPDATE_STATE (1<<1)
|
||||
#define CLUSTER_TODO_SAVE_CONFIG (1<<2)
|
||||
#define CLUSTER_TODO_FSYNC_CONFIG (1<<3)
|
||||
|
||||
/* Redis cluster messages header */
|
||||
|
||||
/* Note that the PING, PONG and MEET messages are actually the same exact
|
||||
* kind of packet. PONG is the reply to ping, in the exact format as a PING,
|
||||
* while MEET is a special PING that forces the receiver to add the sender
|
||||
* as a node (if it is not already in the list). */
|
||||
#define CLUSTERMSG_TYPE_PING 0 /* Ping */
|
||||
#define CLUSTERMSG_TYPE_PONG 1 /* Pong (reply to Ping) */
|
||||
#define CLUSTERMSG_TYPE_MEET 2 /* Meet "let's join" message */
|
||||
#define CLUSTERMSG_TYPE_FAIL 3 /* Mark node xxx as failing */
|
||||
#define CLUSTERMSG_TYPE_PUBLISH 4 /* Pub/Sub Publish propagation */
|
||||
#define CLUSTERMSG_TYPE_FAILOVER_AUTH_REQUEST 5 /* May I failover? */
|
||||
#define CLUSTERMSG_TYPE_FAILOVER_AUTH_ACK 6 /* Yes, you can failover. */
|
||||
|
||||
/* Initially we don't know our "name", but we'll find it once we connect
|
||||
* to the first node, using the getsockname() function. Then we'll use this
|
||||
* address for all the next messages. */
|
||||
typedef struct {
|
||||
char nodename[REDIS_CLUSTER_NAMELEN];
|
||||
uint32_t ping_sent;
|
||||
uint32_t pong_received;
|
||||
char ip[16]; /* IP address last time it was seen */
|
||||
uint16_t port; /* port last time it was seen */
|
||||
uint16_t flags;
|
||||
uint32_t notused; /* for 64 bit alignment */
|
||||
} clusterMsgDataGossip;
|
||||
|
||||
typedef struct {
|
||||
char nodename[REDIS_CLUSTER_NAMELEN];
|
||||
} clusterMsgDataFail;
|
||||
|
||||
typedef struct {
|
||||
uint32_t channel_len;
|
||||
uint32_t message_len;
|
||||
unsigned char bulk_data[8]; /* defined as 8 just for alignment concerns. */
|
||||
} clusterMsgDataPublish;
|
||||
|
||||
union clusterMsgData {
|
||||
/* PING, MEET and PONG */
|
||||
struct {
|
||||
/* Array of N clusterMsgDataGossip structures */
|
||||
clusterMsgDataGossip gossip[1];
|
||||
} ping;
|
||||
|
||||
/* FAIL */
|
||||
struct {
|
||||
clusterMsgDataFail about;
|
||||
} fail;
|
||||
|
||||
/* PUBLISH */
|
||||
struct {
|
||||
clusterMsgDataPublish msg;
|
||||
} publish;
|
||||
};
|
||||
|
||||
typedef struct {
|
||||
uint32_t totlen; /* Total length of this message */
|
||||
uint16_t type; /* Message type */
|
||||
uint16_t count; /* Only used for some kind of messages. */
|
||||
uint64_t currentEpoch; /* The epoch accordingly to the sending node. */
|
||||
uint64_t configEpoch; /* The config epoch if it's a master, or the last epoch
|
||||
advertised by its master if it is a slave. */
|
||||
char sender[REDIS_CLUSTER_NAMELEN]; /* Name of the sender node */
|
||||
unsigned char myslots[REDIS_CLUSTER_SLOTS/8];
|
||||
char slaveof[REDIS_CLUSTER_NAMELEN];
|
||||
char notused1[32]; /* 32 bytes reserved for future usage. */
|
||||
uint16_t port; /* Sender TCP base port */
|
||||
uint16_t flags; /* Sender node flags */
|
||||
unsigned char state; /* Cluster state from the POV of the sender */
|
||||
unsigned char notused2[3]; /* Reserved for future use. For alignment. */
|
||||
union clusterMsgData data;
|
||||
} clusterMsg;
|
||||
|
||||
#define CLUSTERMSG_MIN_LEN (sizeof(clusterMsg)-sizeof(union clusterMsgData))
|
||||
|
||||
/* ----------------------- API exported outside cluster.c ------------------------- */
|
||||
clusterNode *getNodeByQuery(redisClient *c, struct redisCommand *cmd, robj **argv, int argc, int *hashslot, int *ask);
|
||||
|
||||
#endif /* __REDIS_CLUSTER_H */
|
||||
@ -29,6 +29,7 @@
|
||||
*/
|
||||
|
||||
#include "redis.h"
|
||||
#include "cluster.h"
|
||||
|
||||
#include <fcntl.h>
|
||||
#include <sys/stat.h>
|
||||
|
||||
1
src/db.c
1
src/db.c
@ -28,6 +28,7 @@
|
||||
*/
|
||||
|
||||
#include "redis.h"
|
||||
#include "cluster.h"
|
||||
|
||||
#include <signal.h>
|
||||
#include <ctype.h>
|
||||
|
||||
@ -28,6 +28,7 @@
|
||||
*/
|
||||
|
||||
#include "redis.h"
|
||||
#include "cluster.h"
|
||||
#include "slowlog.h"
|
||||
#include "bio.h"
|
||||
|
||||
|
||||
181
src/redis.h
181
src/redis.h
@ -565,184 +565,12 @@ typedef struct redisOpArray {
|
||||
int numops;
|
||||
} redisOpArray;
|
||||
|
||||
/*-----------------------------------------------------------------------------
|
||||
* Redis cluster data structures
|
||||
*----------------------------------------------------------------------------*/
|
||||
|
||||
#define REDIS_CLUSTER_SLOTS 16384
|
||||
#define REDIS_CLUSTER_OK 0 /* Everything looks ok */
|
||||
#define REDIS_CLUSTER_FAIL 1 /* The cluster can't work */
|
||||
#define REDIS_CLUSTER_NAMELEN 40 /* sha1 hex length */
|
||||
#define REDIS_CLUSTER_PORT_INCR 10000 /* Cluster port = baseport + PORT_INCR */
|
||||
#define REDIS_CLUSTER_IPLEN INET6_ADDRSTRLEN /* IPv6 address string length */
|
||||
|
||||
/* The following defines are amunt of time, sometimes expressed as
|
||||
* multiplicators of the node timeout value (when ending with MULT). */
|
||||
#define REDIS_CLUSTER_DEFAULT_NODE_TIMEOUT 15
|
||||
#define REDIS_CLUSTER_FAIL_REPORT_VALIDITY_MULT 2 /* Fail report validity. */
|
||||
#define REDIS_CLUSTER_FAIL_UNDO_TIME_MULT 2 /* Undo fail if master is back. */
|
||||
#define REDIS_CLUSTER_FAIL_UNDO_TIME_ADD 10 /* Some additional time. */
|
||||
#define REDIS_CLUSTER_SLAVE_VALIDITY_MULT 10 /* Slave data validity. */
|
||||
#define REDIS_CLUSTER_FAILOVER_AUTH_RETRY_MULT 4 /* Auth request retry time. */
|
||||
#define REDIS_CLUSTER_FAILOVER_DELAY 5 /* Seconds */
|
||||
|
||||
struct clusterNode;
|
||||
|
||||
/* clusterLink encapsulates everything needed to talk with a remote node. */
|
||||
typedef struct clusterLink {
|
||||
time_t ctime; /* Link creation time */
|
||||
int fd; /* TCP socket file descriptor */
|
||||
sds sndbuf; /* Packet send buffer */
|
||||
sds rcvbuf; /* Packet reception buffer */
|
||||
struct clusterNode *node; /* Node related to this link if any, or NULL */
|
||||
} clusterLink;
|
||||
|
||||
/* Node flags */
|
||||
#define REDIS_NODE_MASTER 1 /* The node is a master */
|
||||
#define REDIS_NODE_SLAVE 2 /* The node is a slave */
|
||||
#define REDIS_NODE_PFAIL 4 /* Failure? Need acknowledge */
|
||||
#define REDIS_NODE_FAIL 8 /* The node is believed to be malfunctioning */
|
||||
#define REDIS_NODE_MYSELF 16 /* This node is myself */
|
||||
#define REDIS_NODE_HANDSHAKE 32 /* We have still to exchange the first ping */
|
||||
#define REDIS_NODE_NOADDR 64 /* We don't know the address of this node */
|
||||
#define REDIS_NODE_MEET 128 /* Send a MEET message to this node */
|
||||
#define REDIS_NODE_PROMOTED 256 /* Master was a slave propoted by failover */
|
||||
#define REDIS_NODE_NULL_NAME "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
|
||||
|
||||
/* This structure represent elements of node->fail_reports. */
|
||||
struct clusterNodeFailReport {
|
||||
struct clusterNode *node; /* Node reporting the failure condition. */
|
||||
time_t time; /* Time of the last report from this node. */
|
||||
} typedef clusterNodeFailReport;
|
||||
|
||||
struct clusterNode {
|
||||
time_t ctime; /* Node object creation time. */
|
||||
char name[REDIS_CLUSTER_NAMELEN]; /* Node name, hex string, sha1-size */
|
||||
int flags; /* REDIS_NODE_... */
|
||||
uint64_t configEpoch; /* Last configEpoch observed for this node */
|
||||
unsigned char slots[REDIS_CLUSTER_SLOTS/8]; /* slots handled by this node */
|
||||
int numslots; /* Number of slots handled by this node */
|
||||
int numslaves; /* Number of slave nodes, if this is a master */
|
||||
struct clusterNode **slaves; /* pointers to slave nodes */
|
||||
struct clusterNode *slaveof; /* pointer to the master node */
|
||||
time_t ping_sent; /* Unix time we sent latest ping */
|
||||
time_t pong_received; /* Unix time we received the pong */
|
||||
time_t fail_time; /* Unix time when FAIL flag was set */
|
||||
time_t voted_time; /* Last time we voted for a slave of this master */
|
||||
char ip[REDIS_IP_STR_LEN]; /* Latest known IP address of this node */
|
||||
int port; /* Latest known port of this node */
|
||||
clusterLink *link; /* TCP/IP link with this node */
|
||||
list *fail_reports; /* List of nodes signaling this as failing */
|
||||
};
|
||||
typedef struct clusterNode clusterNode;
|
||||
|
||||
typedef struct {
|
||||
clusterNode *myself; /* This node */
|
||||
uint64_t currentEpoch;
|
||||
int state; /* REDIS_CLUSTER_OK, REDIS_CLUSTER_FAIL, ... */
|
||||
int size; /* Num of master nodes with at least one slot */
|
||||
dict *nodes; /* Hash table of name -> clusterNode structures */
|
||||
clusterNode *migrating_slots_to[REDIS_CLUSTER_SLOTS];
|
||||
clusterNode *importing_slots_from[REDIS_CLUSTER_SLOTS];
|
||||
clusterNode *slots[REDIS_CLUSTER_SLOTS];
|
||||
zskiplist *slots_to_keys;
|
||||
/* The following fields are used to take the slave state on elections. */
|
||||
mstime_t failover_auth_time;/* Time at which we'll try to get elected in ms*/
|
||||
int failover_auth_count; /* Number of votes received so far. */
|
||||
int failover_auth_sent; /* True if we already asked for votes. */
|
||||
uint64_t failover_auth_epoch; /* Epoch of the current election. */
|
||||
/* The followign fields are uesd by masters to take state on elections. */
|
||||
uint64_t last_vote_epoch; /* Epoch of the last vote granted. */
|
||||
int todo_before_sleep; /* Things to do in clusterBeforeSleep(). */
|
||||
long long stats_bus_messages_sent; /* Num of msg sent via cluster bus. */
|
||||
long long stats_bus_messages_received; /* Num of msg received via cluster bus. */
|
||||
} clusterState;
|
||||
|
||||
/* clusterState todo_before_sleep flags. */
|
||||
#define CLUSTER_TODO_HANDLE_FAILOVER (1<<0)
|
||||
#define CLUSTER_TODO_UPDATE_STATE (1<<1)
|
||||
#define CLUSTER_TODO_SAVE_CONFIG (1<<2)
|
||||
#define CLUSTER_TODO_FSYNC_CONFIG (1<<3)
|
||||
|
||||
/* Redis cluster messages header */
|
||||
|
||||
/* Note that the PING, PONG and MEET messages are actually the same exact
|
||||
* kind of packet. PONG is the reply to ping, in the exact format as a PING,
|
||||
* while MEET is a special PING that forces the receiver to add the sender
|
||||
* as a node (if it is not already in the list). */
|
||||
#define CLUSTERMSG_TYPE_PING 0 /* Ping */
|
||||
#define CLUSTERMSG_TYPE_PONG 1 /* Pong (reply to Ping) */
|
||||
#define CLUSTERMSG_TYPE_MEET 2 /* Meet "let's join" message */
|
||||
#define CLUSTERMSG_TYPE_FAIL 3 /* Mark node xxx as failing */
|
||||
#define CLUSTERMSG_TYPE_PUBLISH 4 /* Pub/Sub Publish propagation */
|
||||
#define CLUSTERMSG_TYPE_FAILOVER_AUTH_REQUEST 5 /* May I failover? */
|
||||
#define CLUSTERMSG_TYPE_FAILOVER_AUTH_ACK 6 /* Yes, you can failover. */
|
||||
|
||||
/* Initially we don't know our "name", but we'll find it once we connect
|
||||
* to the first node, using the getsockname() function. Then we'll use this
|
||||
* address for all the next messages. */
|
||||
typedef struct {
|
||||
char nodename[REDIS_CLUSTER_NAMELEN];
|
||||
uint32_t ping_sent;
|
||||
uint32_t pong_received;
|
||||
char ip[16]; /* IP address last time it was seen */
|
||||
uint16_t port; /* port last time it was seen */
|
||||
uint16_t flags;
|
||||
uint32_t notused; /* for 64 bit alignment */
|
||||
} clusterMsgDataGossip;
|
||||
|
||||
typedef struct {
|
||||
char nodename[REDIS_CLUSTER_NAMELEN];
|
||||
} clusterMsgDataFail;
|
||||
|
||||
typedef struct {
|
||||
uint32_t channel_len;
|
||||
uint32_t message_len;
|
||||
unsigned char bulk_data[8]; /* defined as 8 just for alignment concerns. */
|
||||
} clusterMsgDataPublish;
|
||||
|
||||
union clusterMsgData {
|
||||
/* PING, MEET and PONG */
|
||||
struct {
|
||||
/* Array of N clusterMsgDataGossip structures */
|
||||
clusterMsgDataGossip gossip[1];
|
||||
} ping;
|
||||
|
||||
/* FAIL */
|
||||
struct {
|
||||
clusterMsgDataFail about;
|
||||
} fail;
|
||||
|
||||
/* PUBLISH */
|
||||
struct {
|
||||
clusterMsgDataPublish msg;
|
||||
} publish;
|
||||
};
|
||||
|
||||
typedef struct {
|
||||
uint32_t totlen; /* Total length of this message */
|
||||
uint16_t type; /* Message type */
|
||||
uint16_t count; /* Only used for some kind of messages. */
|
||||
uint64_t currentEpoch; /* The epoch accordingly to the sending node. */
|
||||
uint64_t configEpoch; /* The config epoch if it's a master, or the last epoch
|
||||
advertised by its master if it is a slave. */
|
||||
char sender[REDIS_CLUSTER_NAMELEN]; /* Name of the sender node */
|
||||
unsigned char myslots[REDIS_CLUSTER_SLOTS/8];
|
||||
char slaveof[REDIS_CLUSTER_NAMELEN];
|
||||
char notused1[32]; /* 32 bytes reserved for future usage. */
|
||||
uint16_t port; /* Sender TCP base port */
|
||||
uint16_t flags; /* Sender node flags */
|
||||
unsigned char state; /* Cluster state from the POV of the sender */
|
||||
unsigned char notused2[3]; /* Reserved for future use. For alignment. */
|
||||
union clusterMsgData data;
|
||||
} clusterMsg;
|
||||
|
||||
#define CLUSTERMSG_MIN_LEN (sizeof(clusterMsg)-sizeof(union clusterMsgData))
|
||||
|
||||
/*-----------------------------------------------------------------------------
|
||||
* Global server state
|
||||
*----------------------------------------------------------------------------*/
|
||||
|
||||
struct clusterState;
|
||||
|
||||
struct redisServer {
|
||||
/* General */
|
||||
char *configfile; /* Absolute config file path, or NULL */
|
||||
@ -942,7 +770,7 @@ struct redisServer {
|
||||
int cluster_enabled; /* Is cluster enabled? */
|
||||
int cluster_node_timeout; /* Cluster node timeout. */
|
||||
char *cluster_configfile; /* Cluster auto-generated config file name. */
|
||||
clusterState *cluster; /* State of the cluster */
|
||||
struct clusterState *cluster; /* State of the cluster */
|
||||
/* Scripting */
|
||||
lua_State *lua; /* The Lua interpreter. We use just one for all clients */
|
||||
redisClient *lua_client; /* The "fake client" to query Redis from Lua */
|
||||
@ -1380,10 +1208,7 @@ int *zunionInterGetKeys(struct redisCommand *cmd,robj **argv, int argc, int *num
|
||||
void clusterInit(void);
|
||||
unsigned short crc16(const char *buf, int len);
|
||||
unsigned int keyHashSlot(char *key, int keylen);
|
||||
clusterNode *createClusterNode(char *nodename, int flags);
|
||||
int clusterAddNode(clusterNode *node);
|
||||
void clusterCron(void);
|
||||
clusterNode *getNodeByQuery(redisClient *c, struct redisCommand *cmd, robj **argv, int argc, int *hashslot, int *ask);
|
||||
void clusterPropagatePublish(robj *channel, robj *message);
|
||||
void migrateCloseTimedoutSockets(void);
|
||||
void clusterBeforeSleep(void);
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user