most once) */ id VARCHAR(255) NOT NULL, /* for FIFO’s timeline */ timeout INT NOT NULL, /* opaque data */ data LONGBLOB NOT NULL, /* alive or finished */ created_at INT, PRIMARY KEY (id) )
FROM `queue` WHERE timeout < UNIX_TIMESTAMP() AND created_at IS NOT NULL /* ະྃͷλεΫ */ ORDER BY timeout ASC LIMIT 5; UPDATE SET timeout=UNIX_TIMESTAMP()+300 /* alive_time */ WHERE id IN (?,?,?,?,?); λεΫͷऔಘ UJNFPVU now BDRVJSF +300 waiting... running...
created_at IS NULL; RELEASE_LOCK(`queue`); UJNFPVU now EFMFUF +720 to be deleted... 3VOEFMFUFRVFSZBGUFSUIFMPDLOBNFEUIFUBCMF લड़ͷSFUFOUJPO@UJNFΛա͗ͨΒཧআɻ ىಈޙͱҰఆλεΫΛऔಘ͢Δ͝ͱʹ ͜ͷΫΤϦΛ͛Δɻ
created_at IS NULL; RELEASE_LOCK(`queue`); UJNFPVU now EFMFUF +720 to be deleted... લड़ͷSFUFOUJPO@UJNFΛա͗ͨΒཧআɻ ىಈޙͱҰఆλεΫΛऔಘ͢Δ͝ͱʹ ͜ͷΫΤϦΛ͛Δɻ શͯͷϫʔΧʔΛಉ࣌ʹىಈ͢Δͱɺ ͠Β͘ͷؒআΫΤϦ͕ඈͳ͍
most once) */ id VARCHAR(255) NOT NULL, /* for FIFO’s timeline */ timeout INT NOT NULL, /* opaque data */ data LONGBLOB NOT NULL, /* alive or finished */ created_at INT, /* Who get this task */ owner BIGINT(21) UNSIGNED NOT NULL DEFAULT 0, PRIMARY KEY (id) )
(`index_queue_on_timeout`) WHERE 1300000000<timeout AND timeout<=UNIX_TIMESTAMP() ORDER BY timeout ASC LIMIT :max_acquire FOR UPDATE) AS t1 USING(id) SET timeout=:next_timeout, owner=CONNECTION_ID() SELECT id, timeout, data, created_at, resource FROM `#{@table}` WHERE timeout = ? AND owner=CONNECTION_ID() "DRVJSJOHUBTLTXJUIPVUUBCMFMPDLJOH 4FMFDU.BSL ˣ .BSL4FMFDU 28IBUJT$0//&$5*0/@*% "1SPDFTT*%PGUIF.Z42-DPOOFDUJPO 28IZJUVTFT4&-&$5JO61%"5& ".Z42-EPFTO`UPQUJNJ[F61%"5&RVFSZXJUI -*.*5DMBVTFʜ 2*TA'0361%"5&ATBGF "4BGFCFDBVTF*XSPUFUIJTXJUIJNBHJOH.Z42-`T NJOE
(`index_queue_on_timeout`) WHERE 1300000000<timeout AND timeout<=UNIX_TIMESTAMP() ORDER BY timeout ASC LIMIT :max_acquire FOR UPDATE) AS t1 USING(id) SET timeout=:next_timeout, owner=CONNECTION_ID() SELECT id, timeout, data, created_at, resource FROM `#{@table}` WHERE timeout = ? AND owner = CONNECTION_ID() "DRVJSJOHUBTLTXJUIPVUUBCMFMPDLJOH 4FMFDU.BSL ˣ .BSL4FMFDU #ZUIJTTUSBUFHZ JUBWPJETOFUXPSL MBUFODZJTTVF.PSFPWFSJUDBO BDIJFWFGBTUFSUBTLBDRVJSJOH BCPVUY