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Walking back L1 block by hash #324

@umeshbitgo

Description

@umeshbitgo

Hi
We run our own celo l2 nodes in the testnet. The nodes start correctly and sync to the chainhead but after sometime it stops fetching new blocks and remain stuck there forever. When I check the logs I see this:

t=2025-02-12T14:58:11+0000 lvl=info msg="Starting P2P sync client event loop" peer=16Uiu2HAmNZU3dYKL2Qfxbgx1GbLt2bkAXEJoYBw2tL2ay2BEMLVt
t=2025-02-12T14:58:13+0000 lvl=warn msg="failed to notify engine driver of new L2 payload" err="context deadline exceeded" id=0x08a866f6d42de08939ac4473306505c9cdc68bba15d578757c9f4631b9c33ef0:38415983
t=2025-02-12T14:58:13+0000 lvl=info msg="Received signed execution payload from p2p" id=0x80e728e718e76ab2d02b3adb89685c82da81f535c9b1dbdd82ba8e81ab1da357:38416013 peer=16Uiu2HAmAko2Kr3eAjM7tnshtEhYrxQYfKUvN2kwiygeFoBAoi8S txs=1
t=2025-02-12T14:58:15+0000 lvl=warn msg="Deriver system is resetting" err="failed to find the L2 Heads to start from: failed to retrieve L1 block: operation failed permanently after 5 attempts: failed to fetch header by hash 0x6796f82d8642b9a2eb56fb666c18a081a126fdd95398cc0e1232424a94095805: 503 Service Unavailable: No usable targets currently available"
t=2025-02-12T14:58:15+0000 lvl=info msg="Loaded current L2 heads" unsafe=0x65d14c867a80f68b2213effdd7f27019cd08073dc0e5fe3d3485adbfab7aa1c7:38052747 safe=0x1f2fa29b24888fc8461be4a0608f9ef477eb42b097bb654462ca8fe5cab34c25:37958221 finalized=0x1f2fa29b24888fc8461be4a0608f9ef477eb42b097bb654462ca8fe5cab34c25:37958221 unsafe_origin=0x740cb08e1fdda1836cb7baeffcd376db340824168ce3033372c912855db948cc:3309933 safe_origin=0xee70180da56968cb3aba2897049e75ef421fe66dfd093cc22b88bd9ce0a6b30a:3302513
t=2025-02-12T14:58:16+0000 lvl=info msg="attempting connection" peer=16Uiu2HAmAf9DUZj3SNU6AFfSLQYTGCiDWRFiFsT3zxbJpFryDYv1
t=2025-02-12T15:00:55+0000 lvl=warn msg="Deriver system is resetting" err="failed to find the L2 Heads to start from: failed to fetch L2 block by hash 0xdf65e8e61074bca8a4c9e07deafa65ccf0c24401057d7e0989a75eabea25eff9: failed to determine block-hash of hash 0xdf65e8e61074bca8a4c9e07deafa65ccf0c24401057d7e0989a75eabea25eff9, could not get payload: transaction type not supported"
t=2025-02-12T15:00:55+0000 lvl=info msg="Loaded current L2 heads" unsafe=0x65d14c867a80f68b2213effdd7f27019cd08073dc0e5fe3d3485adbfab7aa1c7:38052747 safe=0x1f2fa29b24888fc8461be4a0608f9ef477eb42b097bb654462ca8fe5cab34c25:37958221 finalized=0x1f2fa29b24888fc8461be4a0608f9ef477eb42b097bb654462ca8fe5cab34c25:37958221 unsafe_origin=0x740cb08e1fdda1836cb7baeffcd376db340824168ce3033372c912855db948cc:3309933 safe_origin=0xee70180da56968cb3aba2897049e75ef421fe66dfd093cc22b88bd9ce0a6b30a:3302513
t=2025-02-12T15:00:55+0000 lvl=info msg="Walking back L1Block by number" curr=0x740cb08e1fdda1836cb7baeffcd376db340824168ce3033372c912855db948cc:3309933 next=0x740cb08e1fdda1836cb7baeffcd376db340824168ce3033372c912855db948cc:3309933 l2block=0x65d14c867a80f68b2213effdd7f27019cd08073dc0e5fe3d3485adbfab7aa1c7:38052747
t=2025-02-12T15:00:55+0000 lvl=info msg="Walking back L1Block by hash" curr=0x740cb08e1fdda1836cb7baeffcd376db340824168ce3033372c912855db948cc:3309933 next=0x818ccc588d32b0f4d1929c6252a7a51a0dc20a52b62ecca7640445014e7f6ca7:3309932 l2block=0x9f4000d416d27965730c93c19439c497e6f114b4ab5bc5b5d5b9426a290a6351:38052734
t=2025-02-12T15:00:55+0000 lvl=info msg="Walking back L1Block by hash" curr=0x818ccc588d32b0f4d1929c6252a7a51a0dc20a52b62ecca7640445014e7f6ca7:3309932 next=0x1e2dba65c17d34c82e5c6c675dea920c9b768965a461867bb00fdd9c17f86dea:3309931 l2block=0x2c46f6c0c7702e0b3e541b0f2f8546ff2d009144160e5d7a0f2086e51cfac861:38052733
t=2025-02-12T15:00:55+0000 lvl=info msg="Walking back L1Block by hash" curr=0x1e2dba65c17d34c82e5c6c675dea920c9b768965a461867bb00fdd9c17f86dea:3309931 next=0x2494e8981563e95dd842e8001d18a4964e3475d2650b97956c408b35f54be10b:3309930 l2block=0xdae6dcb2dcdead335b4effcf42b714f5306d34ac70840ea34f0d54abf51a1343:38052732

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